德国专业音响 AD SP-215B双15寸超低箱
EAW 音箱技术参数
Avalon -- 娱乐场所系列DC系列DC 系列是为舞厅、夜总会等娱乐场所扩声而度身定制的高水准固定安装型扬声器系统。
低频部分采用双重或四重低音单元设计,产生了激荡轰鸣、震撼人心的节奏和效果，充分拓展并彰显了厚重的低音；中高频部分采用性能卓著的中频和高频单元，呈现同样出色的中高音音质，确保在整个中高频段、最大长期声压级情况下纯净、自然、水晶般清澈透明的音色。
DCS子系列为装载有号筒的超低频扬声器系统，用来强有力地增强低音效果.DCT子系列为用来进一步增强高音效果的超高频扬声器系统。
DC1全频三分频扬声器系统；4x15”低频单元, 10”号筒中频单元，2 ”高频单元；非对称下倾式涵盖；包括3/8”-16螺纹安装/吊装点;双路功放驱动 (采用数字信号处理)频响范围: . . . . . . 46Hz－16 kHz覆盖角度 : . . . . . 90°x 40°(+10°－ -30°垂直) 功率/最大长期声压级/阻抗低频1: . . . . . . . . 1600W/129dB/4Ω低频2: . . . . . . . . 1600W/129dB/4Ω低频1+ 低频2: . .3200W/135dB/2Ω中频/高频: . . . . .350 W/133dB/8Ω连接: . . . . . . . . . . NL4和NL8 Speakon尺寸(mm): . . . . . 1016高x1770前/1133后宽x652深重量(kg): . . . . . . .182.3产品编号: . . . . . . .999968选件DC1系统悬吊杆将低频部分与中/高频部分固定为一体 , 每一DC1系统需要2个产品编号 . . . . . . . 179114DC2全频三分频扬声器系统；2x15”低频单元, 10”号筒中频单元，1.4 ”高频单元；配有3/8”-16螺纹安装/吊装点; 双路功放驱动 (采用数字信号处理)频响范围: . . . . . . 45 Hz － 18 kHz覆盖角度 : . . . . . .90° x 40°功率/最大长期声压级/阻抗低频: . . . . . . . . . 1600W/132dB/4Ω中频/高频: . . . . 350 W/133dB/8Ω连接: . . . . . . . . . . NL4 Speakon尺寸(mm): . . . . . 572前高/489后高x1449宽x483 深重量(kg): . . . . . . 86.4产品编号 . . . . . . . 999969DC3全频三分频扬声器系统；2x12”低频单元, 8”号筒中频单元，1”高频单元；配有3/8”-16螺纹安装/吊装点;双路功放驱动 (采用数字信号处理)频响范围: . . . . . . 50 Hz － 18 kHz覆盖角度 : . . . . . 90°x 40°功率/最大长期声压级/阻抗低频: . . . . . . . . . 800W/128dB/4Ω中频/高频: . . . . 250W/128dB/8Ω连接: . . . . . . . . . . NL4 Speakon尺寸(mm): . . . . . 476前/406后高x 1321宽 x406 深重量(kg): . . . . . . 54.5产品编号 . . . . . . .999970DC4全频三分频扬声器系统；2x12”低频单元, 8”中频单元1 ”高频单元；配有3/8”-16螺纹安装/吊装点;双路功放驱动 (采用数字信号处理)频响范围: . . . . . . . 45 Hz － 17.5kHz覆盖角度 : . . . . . . 90° x 40°功率/最大长期声压级/阻抗低频: . . . . . . . . . . .800W/128dB/4Ω中频/高频: . . . . . .220W/120dB/8Ω连接: . . . . . . . . . . . NL4 Speakon尺寸(mm): . . . . . . 486前/354后高 x959宽 x 508 深重量(kg): . . . . . . . .45产品编号 . . . . . . . . 999937DC5全频二分频扬声器系统；12”低频单元；1.4 ”高频单元；配有3/8”-16螺纹安装/吊装点;单路功放驱动频响范围: . . . . . . . .50 Hz － 18 kHz覆盖角度 : . . . . . . .90°x 45°功率/最大长期声压级/阻抗全频: . . . . . . . . . . 500W/124dB/8Ω连接: . . . . . . . . . . . NL4 Speakon尺寸(mm): . . . . . . 395前/306后高 x 762宽 x 346深重量(kg): . . . . . . . .29.5产品编号 . . . . . . . . 999972DC6全频二分频扬声器系统；2x8”低频单元, 1”高频单元；包括3/8”-16螺纹安装/吊装点;单路功放驱动频响范围: . . . . . . .50 Hz － 19 kHz覆盖角度 : . . . . . . 90° x 60°功率/最大长期声压级/阻抗全频: . . . . . . . . . . . 400W/121dB/4Ω连接: . . . . . . . . . . . NL4 Speakon尺寸(mm): . . . . . . 270前高/189后高x762宽x297深重量(kg): . . . . . . . .25.5kg产品编号 . . . . . . . . 997207D C S 系列EAW工程师发现，现代舞厅音乐的频谱具有这样一个特点：50Hz至60Hz低频段的声压级要比其他频段高出10-20dB。
线阵演出音响方案
序号品牌/型号技术参数数量单位单价（元）金额（元）备注（图片）1ACAIF 线阵音箱PH-215（主扩）频响范围：40Hz-20KHz±3dB;低音：2x15(in)75mm(3in), 4×8"中音,高音 2x2(in) 75芯l,额定功率 低频：400W-1000W,中频：400W,高频：200W, 标准阻抗:高音4欧姆、中音4欧姆、低音4欧姆。
16只2ACAIF 超低音箱：AP-218B频响范围：35Hz-150Hz±3dB；低音2x18(in)100芯，220磁,额定功率 1500W,峰值功率：6000W, 标准阻抗：8欧姆+8欧姆4只4ACAIF 全频音箱：MA-15（补音）频响范围：45Hz-20KHz±3dB；低音1x15(in)75芯，190磁,高音：1x1.5(in)44芯高音+1x1.75(in)72芯，额定功率 500W,峰值功率：2000W, 标准阻抗：8欧姆8只5ACAIF 高音功放 PA-650立体双声道模式:8Ω 2×650W8台6ACAIF 中音功放 PA-850立体双声道模式:8Ω 2×850W8台7ACAIF 低音功放 PA-1200立体双声道模式:8Ω 2×1200W8台8ACAIF 超低功放 PA-1500立体双声道模式:8Ω 2×1500W4台10ACAIF 补声音箱功放PA-850立体双声道模式:8Ω 2×850W4台15寸线阵演出音响方案报价合计价格航空机柜。
Beta Three TW2I5 TW系列专业扬声器系统 产品说明书
TW215内置2分频双15寸全频扬声器系统TW系列专业扬声器系统产品说明书CN UM-TW215-20130529 ver A感谢您购买 产品！请仔细阅读本手册，它将帮助你妥善设置并运行您的系统，使其发挥卓越的性能。
并保留这些说明以供日后参照。
警告：为了降低火灾与电击的风险，请不要将产品暴露在雨中或潮湿环境中。
警告：为了降低电击的风险，非专业人士请勿擅自拆卸该系统。
仅供专业人士操作。
等边三角形中的闪电标记，用以警示用户该部件为非绝缘体，系统内部存在着电压危险，电压。
可能足以引起触电。
可能足以引起触电如系统标有带惊叹号的等边三角形，则是为提示用户严格遵守本用户指南中的操作与维护规定。
注意：请勿对系统或附件作擅自的改装。
未经授权擅自改装将造成安全隐患。
警告：燃不得将明火源(如点的蜡烛)放在器材上面。
1. 请先阅读本说明。
2. 保留这些说明以供日后参照。
3. 注意所有警告信息。
4. 遵守各项操作指示。
5. 不要在雨水中或潮湿环境中使用本产品。
6. 不要将产品靠近热源安装，例如暖气管、加热器、火炉或其它能产生热量的装置（包括功放机 ）。
7. 不要破坏极性或接地插头的安全性设置。
如果提供的插头不能插入插座，则应当请专业人员更换插座。
8. 保护好电源线和信号线，不要在上面踩踏或拧在一起（尤其是插头插座及穿出机体以外的部分 ）。
9. 使用厂商规定及符合当地安全标准的附件。
10.雷电或长时间不使用时请断电以防止损坏产品。
12. 不要让物体或液体落入产品内——它们可能引起火灾或触电。
13. 请注意产品外罩上的相关安全标志。
. 仅与厂商指定或与电器一同售出的推车、架子、三脚架、支架或桌子一起使用。
推动小车/电器时，应谨防翻倒。
11注意事项产品的安装调试须由专业人士操作。
在使用非本厂规定的吊装件时，要保证结构的强度并符合当地的安全规范。
警告：1扬声器及扬声器系统的产品有限保修期为自正式购买日起的3年。
由于用户不合理的应用而导致音圈烧毁或纸盆损坏等故障，不包含于产品保修项目。
JBL音响系列产品参数
目录JBL音响系列 (6)JBL 3635 (6)JBL 3677 (6)JBL 3678 (7)JBL 3731 (8)JBL 3732 (9)JBL 4641 (10)JBL 4642A (10)JBL 4645C (11)JBL 4670D (12)JBL 4675C (12)JBL 4675C-4(8)LF (13)JBL 4722/4722N (14)JBL 4732 (15)JBL 5672 (16)JBL 5674 (17)JBL 8320 (17)JBL 8340A (18)JBL 8350 (19)JBL AC15 (19)JBL AC16 (20)JBL AC18/26 (21)JBL AC18/95 (21)JBL AC25 (22)JBL AC26 (22)JBL AC28/26 (23)JBL AC28/95 (24)JBL AL6115 (24)JBL AM4200/64 (26)JBL AM4200/95 (27)JBL AM4215/64 (28)JBL AM4215/95 (29)JBL AM4315/64 (31)JBL ASB4128 (32)JBL ASB6118 (33)JBL BC Series Cinema (33)JBL 3252N和3252 (34)JBL4181 (35)JBL 8281 (37)JBL CBT 100LA (38)JBL CBT 70J (40)JBL CBT 70JE (41)JBL CONTROL 1 PRO (42)JBL CONTROL 100 系列 (43)JBL CONTROL 23 (43)JBL CONTROL 25AV (44)JBL CONTROL 29AV-1 (46)JBL CONTROL 30 (47)JBL CONTROL 300 系列 (49)Control 328C/328CT (49)Control 321C/321CT (50)Control 321C/321CT (50)Control 312S (51)MTC-300BB8 (51)MTC-300SG12 (51)MTC-300RG8 (52)MTC-300T150 (52)JBL CONTROL 5 (53)JBL CONTROL 924C/924CT (54)JBL CONTROL 925 (56)JBL CONTROL 926C/926CT (58)JBL CONTROL 928 (59)JBL CONTROL CRV (61)JBL CONTROL SB210 (63)JBL CSA-2120 2 x120W 音频放大器 (64)JBL CSM-21 (65)JBL CSM-32 公共广播放大器 (67)JBL CSS-1S/T (69)JBL CSS-8006BM 吸顶扬声器 (71)JBL CST-2120 70V/100V 变压器套件 (72)JBL EON 210P (73)JBL EON 305 (74)JBL EON 315 (75)JBL EON 510 (76)JBL EON 515 (77)JBL EON 515XT (78)JBL EON 518S (79)JBL JRX112M (80)JBL JRX112Mi (81)JBL JRX115 (82)JBL JRX115i (83)JBL JRX118S (84)JBL JRX118SP (85)JBL KP610 (86)JBL KP612 (88)JBL KP615 (89)JBL KP618S (90)JBL KS308 (92)JBL KS310 (93)JBL KS312 (94)JBL LSR4312P (95)JBL LSR4326P (96)JBL LSR4328P (99)JBL MDD200 系列音箱 (103)JBL MP510 (104)JBL MRX512M (105)JBL MRX515 (105)JBL MRX518S (106)JBL MRX525 (107)JBL MRX528S (107)JBL PRX400 系列 (108)PRX412M12“两路舞台监听扬声器系统 (108)PRX415M15“两路舞台监听扬声器系统 (109)PRX42515寸两分频扬声器系统 (110)PRX418S18“重低音 (110)JBL PRX512M (111)JBL PRX515 (112)JBL PRX518S (113)JBL PRX525 (114)JBL PRX535 (114)JBL PRX612M (115)JBL PRX615M (116)JBL PRX618S (117)JBL PRX618S-XLF (118)JBL PRX625 (118)JBL PRX635 (119)JBL SRX700 系列 (120)SRX712M: (120)SRX715 (121)SRX718S (121)SRX722 (122)SRX725 (122)SRX728S (122)SRX738 (123)JBL SRX712M (123)JBL SRX715F (124)JBL SRX722F (126)JBL SRX725F (126)JBL SRX728S (127)JBL SRX738F (128)JBL STX800 系列 (129)STX812M 12”两分频，低音反射式，舞台返听/通用式 (129)STX815M 15”两分频，低音反射式，舞台返听/通用式 (130)STX825 双15”两分频，低音反射式 (131)STX835 Dual 15" 双15”三分频，加载中/高音号筒，槽孔式加载低音 (132)STX818S 单18”低音反射式套装选配件 (133)STX828S 双18”低音反射式 (134)JBL VP7212-64DPAN (135)JBL VP7212-95DPAN (135)JBL VP7215-64DPAN (136)JBL VP7215-95DPAN (137)JBL VP7315-64DPAN (138)JBL VPSB7118DPAN (138)JBL VRX915M (139)JBL VRX915S (140)JBL VRX918S (140)JBL VRX918SP (141)JBL VRX928LA (141)JBL VRX932LA-1 (142)JBL VRX932LAP (142)JBL VT4880 (143)JBL VT4881A (143)JBL VT4881ADP (144)JBL VT4882 (144)JBL VT4882DP (145)JBL VT4883 (145)JBL VT4886 (146)JBL VT4887A (147)JBL VT4887ADP (147)JBL VT4888 (148)JBL VT4888DP (149)JBL VT4889 (150)SHURE 话筒系列 (150)Shure Beta 52A (150)Shure Beta 56A (152)Shure Beta 57A (153)Shure Beta 58A (154)Shure Beta 87A (155)Shure Beta 87C (156)Shure PGX1 (158)Shure PGX2 (158)Shure PGX4 (159)Shure PSM200 (159)Shure SLX (162)Shure SLX1 (164)Shure SLX2 (165)Shure SLX4 (166)Shure SM48 (168)Shure SM57 (169)Shure SM58 (170)Shure SM81 (171)Shure SM87A (172)Shure SM94 (173)Shure ULX (175)Shure ULX1 (177)Shure ULX2 (179)Shure ULXP4 (180)JBL音响系列JBL 3635影院次低频扬声器规格频率范围28Hz - 500kHz (-10dB) 频率响应38Hz - 100kHz (±3dB) 额定功率300W分频点100Hz灵敏度100dB @ 1W,1m阻抗8 欧姆低频驱动器(S) 2042H体积(高x 阔x 深) 1168 x 651 x 368mm 净重(每只51kgJBL 3677影院扬声器规格频率范围40Hz - 20kHz (-10dB) 频率响应45Hz - 12kHz (±3dB) 额定功率250W覆盖角度水平：90°垂直：40°分频点 1.2kHz灵敏度99dB SPL @ 1W,1m 阻抗8 欧姆低频驱动器(S) 2035H高频驱动器2416-1号角2373低频-高频-体积(高x 阔x 深) 765 x 651 x 292 mm JBL 3678规格频率范围30Hz - 20kHz (-10dB) 频率响应45Hz - 12kHz (±3dB) 额定功率300W覆盖角度水平：90°垂直：90°分频点1kHz灵敏度98dB SPL @ 1W,1m 阻抗8 欧姆低频驱动器(S) 2226H高频驱动器2425HS号角2342系统组合低频：3678 – HF高频：3678 - HF体积(高x 阔x 深) 1019 x 651 x 292 mmJBL 37313731 三分频银幕线阵列•专门用于后期制作室、VIP 电影厅、审片室•保证了高品质的声音，同时适应了小型放映场所的需要•应用了多项JBL 的专利先进技术•可选择以双功放或三功放驱动•出厂预装及指向调校完毕规格频率范围(-10dB) 30Hz - 20kH频率响应(±3dB) 40Hz - 19kHz指向性因数(Q 10.0指向性指数(DI) 10dB最大声压级125dB @ 1m分频点频率350Hz, [1.2kHz]灵敏度103dB, 2.83V@1m阻抗8 欧姆额定功率LF: 600WM/HF: 150W, [HF:85W]系统组合5641/3732 -M/HF体积(高x 阔x 深) 1600 x 762 x 450 mm 净重(每只) 51.8 kgJBL 37323732 三分频银幕线阵列•可用于最大300 座位的影厅•应用了与4632 一样的先进的技术•可以满足各种预算•可选择以双功放或三功放驱动•出厂预装及指向调校完毕规格频率范围30Hz - 20kHz (-10dB)频率响应40Hz - 19kHz (±3dB)指向性因数(Q) 10.0指向性指数(DI) 10dB最大声压级125dB @ 1m分频点频率350Hz, [1.2kHz]灵敏度103dB, 2.83V@1m阻抗: 4 欧姆额定功率LF: 500WM/HF: 150W, [HF:85W]系统组合3639/3732 -M/HF[4639/3732 - M/HF - T]体积(高x 阔x 深) 1937 mm x 762 mm x 450 mm 净重(每只) 77.9kgJBL 46414641 影院次低频扬声器•性能价格比优越的次低频系统•单460-mm(18英寸)JBL 2241 VGC TM (孔隙冷却技术)2241H低频换能器规格频率范围25Hz - 500kHz (-10dB)频率响应(±3dB) -额定功率600W分频点100Hz灵敏度100dB @ 1W,1m阻抗8 欧姆低频驱动器(S) 2042H体积(高x 阔x 深) 1010 mm x 674 mm x 450 mm 净重(每只) 60kgJBL 4642A4642A 影院次低频扬声器•双460-mm (18英寸)单元•应用了VGC TM (孔隙冷却技术) 2241H 低频换能器•1200 瓦功率，平滑的频率响应规格频率范围(-10dB) 22Hz - 500Hz频率响应(±3dB) -额定功率1200W分频点80 to 100Hz灵敏度101dB SPL @ 1W,1m阻抗4/8 欧姆低频驱动器(S) 2 x 2241H体积(高x阔x深) 762 mm x 1219 mm x 610 mm 净重(每只) 98kgJBL 4645C4645C 影院次低频扬声器•单460-mm (18英寸) 直辐射低频反射式超低音系统•应用了2242 SVG TM (超级孔隙)技术•800 瓦输出功率规格频率范围(-10dB) To 22Hz (no EQ)频率响应(±3dB) -额定功率800W分频点80 to 100Hz灵敏度：1W,1m 97dB (40 - 100Hz)阻抗8 欧姆低频驱动器(S) 2242H体积(高x阔x深) 1010 mm x 674 mm x 450mm 净重(每只) 63 kgJBL 4670D4670D 影院扬声器•4070D 是一宽频带系统，有着出色的动态范围及均匀的覆盖。
世界品牌音响中英文对照
世界品牌音响中英文对照美国 QSCQSC 功率放大器美国 CROWN皇冠功率放大器美国CRESTAUIDO 高峰功率放大器美国 BGW 必敬敌功率放大器美国COMMUNITY C牌专业音箱美国JBL JBL 专业音箱，民用音箱美国BOSE 博士专业音箱，民用音箱美国BAG END 百利衡专业音箱美国CLAIR BROTHERS 慨亚兄弟专业音箱美国 GEMINI 双子星专业DJ设备美国 MTX 澎湃专业DJ设备美国 NUMARK 露玛专业DJ设备美国 SHURE 思雅话筒，无线话筒日本 AUDIO-TECHNICA 铁三角话筒，无线话筒澳地利 ADG 爱克基话筒，无线话筒德国 BEYER 湃雅话筒，无线话筒英国 C-AUDIO 剑桥功率放大器中国台湾 CHIAYO 嘉友话筒，无线话筒美国 EAW EAW 专业音箱美国 PEAVEY 百威音箱，调音台，功率放大器，周边设备美国 EV 艺威音箱，调音台，功率放大器，周边设备，话筒美国 SOUNDTECH 声塔音箱，调音台，功率放大器，周边设备美国 ANDIOCENTRON 奥迪音箱，调音台，功率放大器，周边设备美国 CARVER 卡维音箱，调音台，功率放大器美国 SUN 太阳音箱美国 ROSS 洛斯音箱，调音台，功率放大器美国 SONATA 索娜塔音箱，功率放大器，周边设备美国 CAH CAH 音箱，调音台，功率放大器，周边设备，无线话筒美国 CERWIN-VEGA 史云威格音箱美国 C-MARK 西玛克音箱美国 SOUNDPOWER 声威音箱美国 SAMSON 山逊话筒，无线话筒中国台湾 MASCOT 万事话筒，无线话筒美国 MACKIE 摩奇调音台美国 DOD DOD 周边设备美国 DIGITECH 数技周边设备美国 FUBMAN 富民周边设备美国 ART 阿特周边设备美国 ALESIS 爱丽丝周边设备美国 APHEX 阿飞斯周边设备美国 CELESTION 百变龙音箱美国 AB AB 功率放大器美国 PSL PSL 功率放大器美国 RANE 来恩周边设备美国 ETC ETC 周边设备美国 KLIPSCH 杰士音箱美国 GEM SOUND 知音音箱美国 AMPEG 安倍周边设备美国 APOGSS 爱宝奇音箱，调音台美国 HAFLER 哈福功率放大器日本 POSTEX 福斯特专业数字录音设备日本 REXER 利沙话筒，无线话筒日本 VESTA FIRE 威斯特周边设备韩国 INKEL 英桥调音台，功率放大器韩国 SAMICK 三益调音台，功率放大器韩国 JARGUAR 杰克调音台，音箱英国 3G 3G 调音台英国 HH 双爱取音箱，功率放大器英国 CARLSBRO 卡斯宝音箱，调音台，功率放大器英国 SOUNDTRACS 声迹调音台英国 SOUNDCRAFT 声艺调音台英国 STUDIOMASTER 玛斯特调音台英国 OHM 奥妙音箱英国 BSS 毕斯周边设备英国 WHARFFDALE 乐富豪音箱英国 AHB AHB 调音台英国 WOODWORX MAX 猛士音箱意大利 SELECD 视利投影机美国 GENZ.BENZ 平治音箱英国 TURBOSOUND 特实声音箱日本 YAMAH 雅马哈调音台，音箱，周边设备，功率放大器日本 TOA 东亚调音台，音箱，周边设备，功率放大器，话筒日本 RAMAH 松下音箱，功率放大器，调音台日本 SONY 索尼 CD机，录音卡座，DAT数字录音机日本 TEAC 第一 CD机，录音卡座日本 JVC 胜利 CD机，录音卡座日本 AKAI 雅佳录音卡座日本 PIONEER 先锋 CD机，录音卡座日本 DENON 天龙 CD机，录音卡座日本 TECHNICW 乐声录音卡座日本 SHARP 声宝投影机日本 KENWOOD 健伍 CD机，录音卡座日本 SANSUI 山水录音卡座日本 MARAMTZ 马兰士 CD机日本 ONKYO 安桥录音卡座中国台湾 GAMMA 嘉玛专业耳机荷兰 PHILIPS 菲利浦 CD机意大利 FBT FBT 调音台，音箱意大利 MONTARBO 蒙特宝调音台，音箱，功率放大器意大利 RCF RCF 音箱德国 DELL 贝尔调音台，音箱，功率放大器德国 ZECK 赛克调音台加拿大 PULSE 普鲁士音箱，功率放大器荷兰 PHONIC 丰利调音台，音箱，功率放大器，周边设备德国 SENNHEISER 森海塞尔耳机，话筒，无线话筒中国香港 FIDEK 飞达调音台，音箱，功率放大器，周边设备德国 MIKEC 迈特调音台德国 H K 赫尔基娜音箱德国 SOLTON 诉腾功率放大器德国 CRAAFT 佳呼功率放大器德国 MELHARE 麦可功率放大器德国 BEHRINGER 百灵达周边设备德国 HUGHES KETTNER 豪客音箱西班牙 ECLER 艺格功率放大器，调音台。
世界顶级音响设备及品牌
全球顶级音响品牌金嗓子”(Accuphase，日本)是1972年作为高级分体放大器的专门生产厂而诞生。
以高性能和精良的制作而倍受好评，作为高级放大器品牌确立了稳固地位，今日制作的产品已不只是分体放大器，还有高级合并放大器、激光唱机等，作为高级机的生产厂而广为人知。
ATC(英国)于1974年创立，以独自的技术进行系统用的单元开发，以专门制造音箱而驰誉世界，在各国录音室博得极高评价。
产品除单元外，还有录音室用有源音箱及家用音箱，作为富于鲜活动力的优质声音，拥有众多的狂热爱好者。
Audio research (ARC，美国)建厂于1970年，以产品的声音素质、制作水准和精密设计著称于世，尤以制作电子管机驰名世界。
旗下产品有连贯的外型风格，拉丝厚铝面板，边角修圆，中间镶嵌黑底白字醒目商标，两侧设有圆滑的黑色手柄。
它作的电子管和晶体管放大器声音甜美，驱动力强大。
“西洛”(Cello，美国)诞生于1985年，以高水准的音响爱好者为对象，目标是开发高级放大器。
产品数量不多，但均为设计精良，以高品质元件经精心手工制作，不仅声音，制作的精湛、巧妙均拥有高度评价，其鲜明的Hi-End形象已深入人心。
“汇点”(COUNTERPOINT，美国)设立于1976年，一贯坚持电子管放大器的制作，但由现代化的设计充分发挥电子管的魅力。
它的前置放大器、功率放大器等产品，在高级放大器群中，极富个性。
“爱因斯坦”(EINSTEIN，德国)这个品牌诞生在1987年，他的放大器直至1991年方输出国外，以坚实清晰之美，音质活鲜的高性能，成为令人瞩目的品牌而为世界各国认知。
近年又推出激光唱机、唱盘、音箱等多种产品。
GOLDMLIND(瑞士)原为法国的高级唱机系统而受瞩目，1985年初本部迁至瑞士，产品则以放大器为中心进行开发，以特有的透明音色，精美的外观，作为新颖高级机获得极高评价。
所开发的激光唱机在欧洲也是屈指可数的高级品牌之一，名闻遐尔。
QSC AcousticDesign 表面挂载扬声器用户手册 AD-S28Tw 双200毫米（8英寸
AcousticDesign TM Surface-mount Loudspeaker User ManualAD-S28TwDual 200 mm (8 in) Bandpass Subwoofer*TD-000287-00-A*1 - Read these instructions.2 - Keep these instructions.3 - Heed all warnings.4 - Follow all instructions.5 - Clean only with a dry cloth.6 - Install in accordance with all QSC instructions and documentation. Suspension and mounting should be attempted only by thosewho are trained and skilled in safe suspension and mounting practices7 - Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) thatproduce heat.8 - Only use attachments/accessories from QSC Audio Products, LLC.9 - Use only with mounts or brackets specified by QSC Audio Products, LLC.10 - Refer all servicing to qualified personnel. Servicing is required when the apparatus has been damaged in any way.The lightning flash with the arrowhead symbol within an equilateral triangle is intended to alert the user to the presenceof uninsulated “dangerous” voltage within the product’s enclosure that may be of sufficient magnitude to constitute arisk of shock to humans.The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operatingand maintenance (servicing) instructions in this manual.WARNING! Before placing, installing, rigging or suspending any loudspeaker product, inspect all hardware,suspension, cabinets, transducers, brackets and associated equipment for damage. Any missing , corroded,deformed, or non-load rated component could significantly reduce the strength of the installation and shouldbe immediately corrected. Use only hardware which is rated for the loading conditions of the installationand any possible short-term unexpected overloading. Never exceed the rating of the hardware or equip-ment. Consult a licensed, professional engineer when any doubt or questions arise regarding a physicalequipment installation.Warranty (USA only; other countries, see your dealer or distributor)DisclaimerQSC Audio Products, LLC is not liable for any damage to amplifiers or any other equipment that is caused by negligence or improper installation and/or use of this loudspeaker product.QSC Audio Products 3 Year Limited WarrantyQSC Audio Products, LLC (“QSC”) guarantees its products to be free from defective material and/or workmanship for a period of three (3) years from the date of sale and will replace defective parts and repair malfunctioning products under this warranty when the defect occurs under normal installation and use - provided the unit is returned to our factory or one of our authorized service stations via prepaid transportation with a copyof proof of purchase (i.e., sales receipt). This warranty provides that the examination of the returned product must indicate, in our judgement, a manufacturing defect. This warranty does not extend to any product which has been subjected to misuse, neglect, accident, improper installation , or where the date code has been removed or defaced. QSC shall not be liable for incidental and/or consequential damages. This warranty give you specific legal rights. This limited warranty is freely transferable during the term of the warranty period.Customer may have additional rights, which vary from state to state.In the event that this product was manufactured for export and sale outside of the United States or its territories, then this limited warranty shall not apply. Removal of the serial number on this product, or purchase of this product from an unauthorized dealer will void this limited warranty. Periodically, this warranty is updated. To obtain the most recent version of QSC’s warranty statement, please visit . Contact us at 800-854-4079 or visit our website at .© Copyright 2008, QSC Audio Products, LLCQSC® is a registered trademark of QSC Audio Products, LLC“QSC” and the QSC logo are registered with the U.S. Patent and Trademark OfficeAll trademarks are the property of their respective owners.IntroductionCongratulations and thank you for your purchase of this subwoofer. The AD-S28Tw model offers excellent acoustic perfor-mance in an easy-to-install and attractive enclosure. Please review these instructions and carefully follow the recommenda-tions. Consult a licensed installation professional if you are uncertain about any mounting issues.The AD-S28Tw features dual 8” (200 mm) low frequency (LF) drivers in a ported bandpass enclosure. The AD-S28Tw is equipped with an audio transformer suitable for 70V and 100V distributed systems, as well as a tap-selector switch which can bypass the transformer for 8 ohm applications. The AD-S28Tw also includes a bypassable 120Hz low pass filter. The marine-grade plywood enclosure may be used in floor-standing as well as yoke mounted and suspended applications.What’s IncludedYour surface mount subwoofer includes:- the loudspeaker cabinet with grille - extra grille backing foam sheet - steel yoke bracket- steel suspension point shear plates (x3)- steel M6 forged shoulder eyebolts (x4)- hex head / phillips-head M6 bolts (x3)- flat washers (x4)- rubber yoke mounting gaskets (x2)- rubber feet with integrated attachment bolts (x4)Features1 - Marine grade plywood enclosure, painted2 - ABS grille endcaps3 - Steel grille with foam backing4 - Rotatable QSC logo badge5 - Integrated M6 suspension points6 - Input cup with rotating door (see detail)7 - Rubber feet (shown attached)8 - Service access panel9 - Low Pass Filter Switch 10 - Transformer tap switch11 - Input cup door (shown in open position)12 - Input screw terminals1234567811Attaching the FeetLocate the four M6 attachment points on the bottom of the sub. Consult the following illustrations and pay careful attention to which attachment points are correct.Installation OptionsThe AD-S28Tw has been designed for installation flexibility. The subwoofer may be mounted using a number of different suspension techniques, as well as being easily shelf or floor mounted. The QSC logo on the grille is rotatable to accommo-date horizontal or vertical orientation. While low frequency products do not have directional dispersion characteristics, all of the sonic energy produced by this subwoofer exits the cabinet through the port due to the ported bandpass design. For that reason, the port (located behind the grille) mUSt NOt be physically blocked by anything, and should not be placed within twelve (12) inches of any objects larger than 3 to 4 inches (75 to 100 mm).When the subwoofer is floor or shelf standing it is recommended that the rubber feet be attached.For suspended installations, the enclosure can be attached with flypoints or the included yoke bracket. The enclosure can be oriented in multiple positions when suspended:Remove the screws from the selected attachment points using a #2 phillips-head screw driver or electric driver. Remove only the four screws for the attachment of the feet. DO NOt REmOVE ANY OtHER SCREWS. If a screw hole is left open, it will create an airleak which will cause noise and compromise the performance of the cabinet.Screw the rubber feet into the attachment point. It should not require significant force to rotate the foot if the threads are properly engaged. If the foot is not screwing in easily, remove it and engage it in the threads again.Do not use any tools for installation of the feet. the rubber may be damaged if a tool is used.Continue rotating the foot until it makes contact with the cabinet. Only hand generated force is necessary to properly seal the hole and keep the foot screwed in.Once the feet are attached, place the subwoofer in the desired location.mounting the Subwoofer Using the YokeThe yoke can be used to mount the subwoofer either on a vertical surface, like a wall, or from an overhead surface, like a ceiling or ceiling beams. In either case, the attachment points on the enclosure for securing the yoke are the same. The yoke is designed to attach to only two sides of the cabinet and cannot be attached to any other surfaces. The yoke features slots to allow for either maximum rotation of the cabinet, or for minimum separation between the cabinet and the mounting surface. Consult the following illustrations.Once the subwoofer is secured in position, the QSC logo can be rotated if desired. If the logo is difficult to rotate the first time, a tool may be required. A small flat-head screw driver is recommended. Gently work the tool between the logo badge and the grille to allow rotation. Exercise care to avoid scratching the grille surface.the yoke must be secured to structure that is capable of supporting the weight of the subwoofer and must be connected using load rated hardware.Consult a licensed, professional engineer when any doubt or questions arise regarding a physicalequipment installation.1 - Remove the screws from the selected attachment points using a #2 phillips-head screw driver or electric driver. Remove only the two screws that will be used for the attachment of the yoke. DO NOt REmOVE ANY OtHER SCREWS. If a screw hole is left open, it will create an airleak which will cause noise and compromise the performance of the cabinet.2 - Remove the adhesive backing from the rubber pad and attach the pad to the cabinet by pressing the adhesive coated side against the cabinet. Make sure not to obstruct the attachment holes. The adhesive will hold the pad in place as you mount the enclosure to the yoke.3 - Align the yoke with the attachment points on the subwoofer and place the attachment hardware according to the il-lustration.4 - Tighten the hex-head/phillips-head bolts enough to hold the subwoofer in place but loose enough to rotate with minimum force. Check the alignment of the subwoofer for best desired appearance. As long as the port is not blocked, the alignment of the subwoofer will not affect performance. Once positioned, tighten the bolts so that the subwoofer will not rotate with force.Hex-head / phillips-head m6 BoltLock washer Flat washerAdhesive rubber pad (affixed to enclosure)It is recommended that the yoke be attached to the mounting surface prior to attaching the yoke to the subwoofer enclo-sure. The yoke is designed to allow attachment to the mounting surface with mounting points ranging from 5.5 in (140 mm) to 6.5 in (165 mm) apart.Suspending the Subwoofer Using Eyebolts and Shear PlatesThe subwoofer can be suspended using the included eyebolts. There are three possible orientations for installing the sub-woofer this way.1. Port facing laterally, subwoofer in “wide” orientation2. Port facing laterally, subwoofer in “narrow” orientation3. Port facing downFor each of these orientations, the points for eyebolt and shear plate attachment are very specific. Please consult the follow-ing illustrations to understand each orientation and pay careful attention to which attachment points are correct.Any unused attachment point can be used as a safety/seismic secondary attachment. Attach an eyebolt to an available at-tachment point according to the section of the manual titled: Suspending the Subwoofer Using Eyebolts and Shear Plates. Be sure to leave less than 12 in (300 mm) of slack in the secondary attachment cable.the safety/seismic secondary attachment must be secured to structure that is capable of supportingthe weight of the subwoofer and must be connected using load rated hardware.Shear PlatesAlign the mounting hole of the shear plate with the enclosure attachment point with the rubber pad between the plate and the cabinet. Place the attachment hardware according to the illustration. Tighten the hex-head bolts enough to hold the shear plate in place but leave it just loose enough to rotate with minimum force. Check the alignment of the shear plate so that it is perpendicular to the cabinet. Once positioned, tighten the bolts so that the shear will not rotate with force. the shear plates must be secured to structure that is capable of supporting the weight of the subwoofer and must be connected using load rated hardware.Consult a licensed, professional engineer when any doubt or questions arise regarding a physicalequipment installation.Remove the screws from the selected attachment points using a #2 phillips-head screw driver or electric driver. Remove only the screws that will be used for the attachment eyebolts or shear plates. DO NOt REmOVE ANY OtHER SCREWS. If a screw hole is left open, it will create an airleak which will cause noise and compromise the performance of the cabinet.The locations of the eyebolts were designed to suspend the subwoofer using the fewest number of attachment points. Where possible there are only three attachment points to be used. These points are located so that the triangle they form “encloses” the center of gravity and the subwoofer will balance with all three points suspended. In some cases, one or more of the attachment points is not on a cabinet side that is facing up. In these cases DO NOt USE AN EYEBOLt . In this position, the eyebolt will be in shear and the eyebolt is greatly derated in this use. For these attachment points a SHEAR PLAtE mUSt BE USED FOR SUSPENDING the subwoofer.EyeboltsScrew the eyebolt into the attachment point. It should not require significant force to rotate the eyebolt if the threads are properly engaged. If the eyebolt is not screwing in easily, remove it and engage it in the threads again.Continue rotating the eyebolt until it makes contact with the cabinet. Once the eyebolt shoulder has made contact with the cabinet, continue to rotate it until it reaches the desired alignment with the cabinet. If necessary, use a tool such as a long handheld screwdriver to tighten it. Place the blade of the screwdriver through the eyebolt and use it to rotate the eyebolt. It is not necessary to tighten the eyebolt to the point that it cannot rotate any further. Once the shoulder has made contact with the enclosure, any further tightening is actually cutting the shoulder of the eyebolt in to the wood of the cabinet. This “cutting in” coupled with the tension of suspension on the eyebolt will prevent the eyebolt from loosening once the cabinet is suspended. the eyebolts must be secured to structure that is capable of supporting the weight of the subwoofer and must be connected using load rated hardware.Consult a licensed, professional engineer when any doubt or questions arise regarding a physicalequipment installation.Hex-head / phillips-head m6 Bolt Lock washer Flat washer Shear plate Attached rubber padWiring Signal to the SubwooferThe input terminal is on the rear of the subwoofer and is covered by a hinged door. Open the door to expose the screw terminals. There are four sets of screw terminals arranged in positive/negative pairs for parallel wiring. One pair is labeled for input (receive signal) and the other pair is labeled for output (pass signal to next device). But be sure that the wiring is consistent and paired properly.The terminals are designed to accept wiring between 18 AWG (1.02 mm) and 12 AWG (2.053). Use a #2 Phillips-h ead screw driver to loosen the terminal screw. Strip the insulation for the signal wire so that approximately 3/4 in (20 mm) of bare wire is exposed. Place the bare wire under the screw down plate and retighten the screw as tightly as possible with a manual screw driver.The input and output pairs are parallel. The output terminals will pass exactly what is presented at the input terminals. If low impedance full range audio signal is presented at the input (it is recommended that the subwoofer’s internal low pass filter be used in this instance) then low impedance full range audio will be passed to the next device wired to the parallel output of the AD-S28Tw. If high impedance 70V or 100V signal is presented at the input, then high impedance 70V or 100V signal will be passed to the next device wired to the parallel output of the AD-S28Tw. If an external low pass filter is used and only low passed signal is presented at the input, then only low passed audio will go to the next device wired to the parallel output of the device.Using 70V or 100V Drive for Distributed Audio SystemsHigh impedance 70V or 100V drive allows for a typically larger number of loudspeakers to be wired to one amplifier output and allows smaller wire gauge to be used over longer runs with less loss. When using high impedance drive, the internal transformer on the AD-S28Tw mUSt be engaged. To do this, rotate the tap selector switch so that it is aligned with one of the four (three for 100V) transformer tap settings. The tap setting on the switch selects which tap of the transformer is used to buffer the signal and is expressed in terms of the power draw on the amplifier. The larger the tap, the more output from the subwoofer. Transformer tap settings should be considered when selecting an amplifier to drive the system. A good “rule of thumb” is that the rated power of the amplifier per channel should be the minimum of all of the connected taps added together with an additional 20% for headroom. An example: 8 Loudspeakers each tapped at 50W 50 + 50 + 50 +50 + 50 + 50 + 50 + 50 = 400 or8 x 50 = 400400 + 20% = 480Use an amplifier with a minimum channel power rating of 480WMultitap 70V / 100V transformers can saturate with low frequency energy. Saturation causes analog clipping distortion of the signal. The transformer use in the AD-S28Tw is custom designed to saturate at frequencies below the functional low frequency range of the AD-S28Tw. It is recommended that a -6 dB, 30 Hz high pass filter be engaged to prevent saturation of the transformer.Any unused attachment point can be used as a safety/seismic secondary attachment. Attach an eyebolt to an available attachment point according to the Eyebolt instructions above. Be sure to leave less than 12 in (300 mm) of slack in the secondary attachment cable. the safety/seismic secondary attachment must be secured to structure that is capable of supportingthe weight of the subwoofer and must be connected using load rated hardware.Once the subwoofer is secured in position, the QSC logo can be rotated if desired. If the logo is difficult to rotate the first time, a tool may be required. A small flat-head screw driver is recommended. Gently work the tool between the logo badge and the grille to allow rotation. Exercise care to avoid scratching the grille surface.SpecificationsAD-S28twFrequency Response 1: 42 - 165 Hz (-3 dB), 36 - 205 Hz (-10 dB)maximum Output 2: 118 dB SPL continuous rms output (Calculated) 124 dB SPL peak outputtransducers:Dual 8 inch (200 mm) weather resistant, polypropylene cone woofer, rubber surround Impedance (ohm):8.0 n om. / 9.5 min at 77 Hz with LPF “IN” / 5.3 min at 63 Hz with LPF “OUT”Power Handling 3: RMS (IEC 2hrs): 250 W Recommended amp rating: 500 W Sensitivity: 94 dB, 2.83 V, 1 m, ground plane (2P )Internal Filter:120 Hz low pass, passive, bypassableOptional Processing: 120 Hz low pass >12 dB/octave, internal filter bypassedtransformer: Type:Custom low distortion laminated core, wide bandwidth designTaps: 70 V: 200, 100, 50, 25 W / 100 V: 200, 100, 50 W / 8 W selected by rotary switch Connectors: Four position screw terminals; 2 in / 2 out Controls: Transformer tap selector and bypass; rotary switchLow pass filter rotary switchEnclosure Configuration: Dual chamber bandpass, one chamber ported, surface mount Enclosure Construction: Marine grade plywoodEnvironmental:IEC 60529 IP-x4 rated against dust and water incursion. Not recommended for outdoor installation without adequate cover.Finish: Textured black paint (paintable)Grille:Zinc plated steel with black paint coating and black ABS end caps mounting Hardware: Included black powder coated steel yoke with attachment hardware Included black zinc coated forged shoulder steel M6 eyeboltsIncluded black powder coated steel shear plates with attachment hardwareIncluded black rubber feet with integral threaded bolt Weight - Net / Shipping:43 lb (19.5 kg) / 55 lb (25 kg)Specification Notes:1 - All frequency ranges specified refer to half space measured response (2P ).2 - Calculated peak SPL at 1m, half space, speaker operating at rms power, pink noise input, 50 Hz to 20 kHz.3 - Maximum input power tested in accordance with IEC recommendations; 50 Hz to 20 kHz band limiting, 6 dB signal crest factor.Specifications are subject to change without notice.For detailed information, visit QSC’s web site at or call us at 1-800-854-4079 (toll free USA only)AD-S28tw DimensionsAD-S28tw Yoke Dimensions11Kontaktinformationen für QSC Audio Prodcuts, LLC QSC Audio Products, LLCmailing Address:QSC Audio Products, LLC1675 MacArthur Boulevard Costa Mesa, CA 92626-1468 USAtelephone Numbers:Main Number (714) 754-6175Sales & Marketing (714) 957-7100 or toll free (USA Only) (800) 854-4079Customer Service (714) 957-7100 or toll free (USA Only) (800) 772-2834Facsimile Numbers:Sales & Marketing FAX (714) 754-6174Customer Service FAX (714) 754-6173World Wide Web: E-mail :*************************************QSC Audio Products, LLC 1675 MacArthur Boulevard Costa Mesa, California 92626 USA ©2009, “QSC” and the QSC logo are registered with the U.S. patent and Trademark Office.。
德国AD专业音响
德国AD专业音响声利谱音响AD的发展史AD 的前身由荷兰人Luis van Rossum 和Frans van Meulebroeck ，在1974 年创立。
这是个完美的组合，前者是个具有国际视野的企业家，而后者是个来自皇家荷兰飞利浦的资深电子工程师。
当时，公司的基地位于西班牙的东南海岸的Altea.起初公司的名字叫Prosound，在70年代是个旅游业非常兴旺的年代，Prosound公司就是为这些日益扩张的酒吧，迪斯科，音乐会，节日等体统扩声系统。
Prosound公司为它们提供了出色的专业服务，通过客户的口耳相传，很快就建立了良好的口碑，因为Prosound提供的是一整套的服务：功放，音箱系统已经处理器。
这在那个年代无疑是少见的Prosound的成功一直延续到80年代。
期间推出的PS系列成为公司发展的一个里程碑。
它们的可靠性和耐用性确保其在假日庆典，酒吧，摇滚音乐会中日复一日的苛刻使用，从而蜚声整个西班牙，Prosound的口碑从此被广泛认可，因为它的客户知道，Prosound的产品在实际的应用中从来没有令人失望过，无论是专业人士苛刻使用，还是迷恋疯狂夜生活的西班牙的年轻一代的粗暴使用。
而事实上，时至今天很多PS系列的音响在正常使用的25年后依然表现出色，屹立不倒。
随着产品逐步扩张到国际市场，Prosound决定把名字改成Audience Delight Systems（简称AD），是为了避免在西欧的语系中造成混淆。
AD成为数字音频处理领域的先锋之一。
它的数字音频处理器AD-1000 DC在获得1994年的荷兰科技创新大奖就证明了这一切。
AD一直贯彻行事低调的作风，埋头搞科技创新，它相信唯有这样才能真正保持在业界领先的位置和良好的口碑，而并非过分地打广告，做推广，做促销。
在90年代初德国著名的音响工程师Juergen Eicker加入了AD。
他被AD的理念所深深吸引，从此Juergen Eicker全面负责AD的研发工作。
EAW 音箱全系列技术参数
G R O U P
性能更优越， 性能更优越，可靠性更高
EAW扬声器系统的每个部件都是度身定制的：扬声器单元、号筒 和波导管都是根据特定扬声器系统的性能要求而专门设计的；体采用 波罗的海桦木材质，人性化的设计使用更方便；经过精心设计、实现 / 完美匹配的无源分频器和/或全耦合处理器，整个系统产生平滑自然、 水晶般透明、动态宽广的一流音质。 G组扬声器系统同时秉承了EAW一贯的结实可靠、方便实用的特 点，音箱上配有把手，输入端口既方便又经久耐用，还有各类滑板、 脚轮、落地式支架等选件。为用户创造了更多的便利。
G R O U P
深圳市场:
广州“喜力”中国巡回演出使用 系列音箱 广州“喜力”中国巡回演出使用LA系列音箱 广州市第一工人文化宫榕泉影剧院使用CB2590等电影音箱 广州市第一工人文化宫榕泉影剧院使用 等电影音箱 广州平安影剧院使用CB2591、SB184C等音箱 广州平安影剧院使用 、 等音箱 广州市电影公司试片厅使用CB152等电影音箱 广州市电影公司试片厅使用 等电影音箱 广州重金属的士高使用LA、 广州重金属的士高使用 、FRz系列音箱 系列音箱 广东深圳歌舞团使用KF850、SB850 等音箱 广东深圳歌舞团使用 、 深圳福永艺术中心使用等KF850 深圳福永艺术中心使用等 广东省深圳民俗文化村中心剧场使用AS660、AS460、AS490、AS625音箱 广东省深圳民俗文化村中心剧场使用 、 、 、 音箱 深圳欢乐谷水上乐园MK5194、SB180等音箱 深圳欢乐谷水上乐园 、 等音箱 广东省南海市电力局会议中心使用了AS系列音箱 广东省南海市电力局会议中心使用了 系列音箱 珠海市石景山旅游渡假村娱乐城使用KF300、SB330等音箱 珠海市石景山旅游渡假村娱乐城使用 、 等音箱 广州花园酒店国际会议中心多媒体工程 广州天河体育馆 佛山世纪明珠体育馆 广州市一宫电影院
电子分频器的使用技巧
电子分频器的使用技巧在一套音响系统中提到分频器一般来说是指能将：20Hz--20000Hz频段的音频信号分成合适的、不同的几个频率段，然后分别送给相应功放，用来推动相应音箱的一种音响周边设备。
下面简单介绍一下分频器在音响系统中的应用。
一、我们为什么要使用电子分频器大家知道，声音的频率范围是在20Hz—20000Hz之间，现在大多数前级音频处理设备的频率范围是可以达到这样宽度的，但目前的扬声器却成了一个瓶颈部分，我们奢想使用一种或简单几只扬声器就能放送出接近20Hz--20000Hz这样宽频率的声音是很难做到的，因为现在单只喇叭的有效工作频率范围都不是很宽。
鉴于此电声工程师们就设计出了在不同频率段内工作的音箱，如：1、重低音音箱：让它在大约30-200Hz的频率范围内工作。
2、低中音音箱：让它在大约200-2000Hz的频率范围内工作。
3、高音音箱：让它在大约2000-20000Hz的频率范围内工作。
如此以来我们就可以利用在不同频率段工作的不同种类的音箱配置一套能最大限度接近声音真实频率（20Hz--20000Hz）的音响系统了。
当然不同音箱设备的构成和参数是不同的，我上面说的是以一个三分频的系统为例，实际使用上还有其它诸如：2分频或4分频等系统，而且不同音响系统中由于采用的音箱会有区别，因此这些音箱的工作频率也不可能是固定相同的，但大体的原理和思路是一样的。
那么有一个问题就是：我们如何给这些在不同频率段工作的、不同种类的音箱灵活分配音频频率呢？为了解决这个问题，电子分频器就应运而生了，它可以根据不同音箱工作频率的需要提供合适的频率段，例如：1、我们可以用电子分频器将高频信号通过功放送到高音扬声器中。
2、可以用电子分频器将中频信号通过功放送到中音扬声器中。
3、可以用电子分频器将低频信号通过功放送到低音扬声器中。
这样高、中、低频信号独立输出、互不干涉，因此可以尽可能发挥不同扬声器的工作频段优势，使音响系统中各频段声音重放显得更加均衡一些，使声音更具层次感，使音色更加完美。
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德国专业音响 AD SP-215B双15寸超低音箱
德国音箱AD SP-215B是由厦门声利谱电子科技有限公司供的一款双15寸超低音箱超低音箱.
SP-215B 的箱体是无压缩通风式设计保证频率范围为34Hz - 300Hz提供大动态及强劲的超低频表现。
SP-215B搭载了2个非常高效大功率15”（4”音圈）超低单元带来一个非常低的失真但出色的低音响应。
SP-215B专门为Spark系列的全频音箱搭配使用带来异常出色和震撼的低频表现。
可以轻松应付各种高品质中小型号的扩声需求。
产品参数:
频率响应：34hz-300khz
可用带宽：33hz-150khz
灵敏度（1w@1m):102db
系统输出声压级：133dB（持续）
最大系统输出声压级：136dB（峰值）
阻抗：4欧姆
功率：1400W持续/2800W峰值
箱体组件:
面网：黑色环氧穿孔铁网，黏贴高穿透度的音频专用棉
连接头：2*NL4（NEUTIK),1+/1-,2+/2-
2*M20支撑杆孔
人体工学抽手方便搬运
箱体外观:
材料：15MM波罗的海桦木
喷漆：PU漆，黑色
箱体尺寸：500mm*1000mm*600mm(H*W*D)
净重：65.2kg
毛重：69kg
箱体单元:
低音2*15单元（防水，4 音圈）
箱体应用:
无源两路全频箱体（2*15）/分布式扩声面设超低频、中小型主扩声应用、流动演出及固定安装、紧凌坚固之箱体/多种用途。