AD-C820과 AD-C821은 ceiling-mount 스피커로서 음향적으로는 동일하며 음악 플레이백, PA 용도로 제작되었고 높은 출력을 필요로 하는 상황에 적합합니다.
두 모델 모두 트랜스듀서와 크로스오버 네트워크를 사용하였고 엔클로저(AD-C800BB)와 결합되어지거나 전체적으로 통합되어진 시스템(AD-C821)일 수도 있습니다.
이 스피커는 신뢰성 있는 high-ceiling 어플리케이션과 함께 자연스럽고 정밀한 음질의 특성을 나타내줍니다.

8인치 low-frequency 우퍼
1.4인치 다이어프램 컴프레션 드라이버
200W 정격 출력
70V/100V 멀티탭 트랜스포머 포함
AD-C820 분리된 백캔 설치를 위한 트랜스듀서/배플
완전히 통합된 blind-mount 시스템으로 설계된 AD-C821

System details

Configuration : Passive
Low-frequency : 8"(203mm) ferrite woofer
High-frequency : 1.4"(36mm) neodymium compression driver
Frequency response(-6dB) : 61Hz~18kHz
Useable frequency range(-10dB) : 52Hz~18kHz
Maximum output(Calculated peak output) : 120dB SPL
Maximum output(Calculated continuous output) : 114dB SPL
Nominal coverage : 90° horizontal and vertical
Nominal impedance : 16Ω
RMS power handling : 200W
Recommended max amp power : 400W
Sensitivity : 91dB SPL, 1W/1m
Bass loading : Ported
Transformers type : Custom low distortion laminated core, wide bandwidth design
Transformers taps : 100V 16Ω bypass, 100W, 50W, 25W
           70V 16Ω bypass, 100W, 50W, 25W, 12.5W
Agency rating : CE, UL 1480(commercial/professional use) UL 2043(air handling spaces)
Connectors : Back box(AD-C800BB)/ceramic block connector inputs and “through” connectors(rated for 400W max).
       Loudspeaker baffle(AD-C820)/10-pin MATE-N-LOK™ connector and faston connectors.

Enclosure details

Enclosure volume : AD-C800BB: 18L(0.64ft3)
Mounting hardware : Pre-installed, suspended, back box, four vertical mounting straps.
          Loudspeaker baffle: captive, integral, Mounting clamps.
Weight(net) : AD-C820/8lb(3.6kg),
       AD-C800BB/9.5lb(4.3kg),
       System weight/17.5lb(7.9kg)
Dimensions : Diameter/14.9"(379mm)
        Enclosure only depth/8.3"(211mm)
        Enclosure with mounting straps
        Depth/11.2"(284mm)
System packages : AD-C820R system: includes
         AD-C820 speaker baffle,
         AD-C800BB backbox,
         AD-C800RG round grille
         AD-C820S system: includes,
         AD-C820 speaker baffle,
         AD-C800BB backbox,
         AD-C800SG square grille