POWER AMPLIFIERS

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(1) 기능

본 기기는 2채널 앰프로서 분산 오디오 시스템용으로 차폐된 25, 70, 100볼트로 출력하는 모델로 3U 섀시로 만들어진 기기이어야 한다. 빠르고 반복 가능한 설정을 위해 앰프 후면에 2dB 디텐트로 구성된 오작동 방지 게인 컨트롤을 내장하고 있어야 하며 HD-15 커넥터로 마무리된 DataPort V2가 XC-3 크로스오버, SF-3 서브우퍼 필터, LF-3 저주파 필터 같은 DPV2 호환 가능 신호처리 부품용으로 DSP-3가 외부 전력용으로 설치되어 있어 다양한 로딩 옵션 및 광범위한 기능으로 비용 절감 효과가 크며 영구 설치 음향 장치용 기기이어야 한다.

(2) 기기특성

- Stereo mode(both channels driven)

8Ω/20Hz~20kHz/0.1% THD	: 260W

4Ω/20Hz~20kHz/0.1% THD	: 425W

2Ω/1kHz/1% THD	: 700W

- Direct output, stereo mode

70V/20Hz~20kHz/+0, -0.3dB/0.5% THD	: -

- XF output power, stereo mode

70V or 100V/50Hz~16kHz/0.5% THD	: 500W

25V/50Hz~16kHz/0.5% THD	: 300W

- Bridge mono mode

8Ω/1kHz/0.1% THD	: 900W

4Ω/1kHz/1% THD	: 1,400W

- XF output power, bridge mono mode

140V or 200V/50Hz~16kHz/0.5% THD	: 1,000W

- Signal to noise(20Hz~20kHz, 8Ω)	: 100dB

- Distortion(SMPTE-IM)	: < 0.01%

- Input sensitivity at 8Ω	: 1.07V(+2.8dBu)

- Gain at 8Ω	: 44.7x(33dB)

- Output circuitry	: AB

- Distortion(typical)

20Hz~20kHz:10dB below rated power	: < 0.03% THD/4Ω and 8Ω

1.0kHz and below: full rated power	: < 0.03% THD/4Ω and 8Ω

- Frequency response(10dB below rated output)	: -3dB at 50Hz, -0.5dB at 20kHz

XF outputs: 50Hz~16kHz, +0/-3dB

- Damping factor(direct outputs)	: > 200 at 8Ω/ISA1350: > 250

Output regulation(isolated outputs)	: < 1.5dB

- Input impedance	: 10k ohms unbalanced/

20k ohms balanced

- Input clipping	: 10Vrms(+22dBu)/

ISA1350: 4.53Vrms(+15.3dBu)

Cooling	: Continuously variable speed fan,

back-to-front air flow

- Connectors

Input	: Active balanced/3-pin euro-style

detachable terminal block and

XLR(pin 2+)

Output	: Covered barrier strips,

dataport V2/HD-15 connector

- Controls

Front	: AC switch

Rear	: ch1&2 gain knobs/

10-position DIP switch

- Indicators

Power-on	: Green LED

Signal	: Green LED(1per channel)

Protect	: Red LED(ISA 1350)

Clip	: Red LED(1per channerl)

- Amplifier protection	: Full short circuit, open circuit,

thermal, ultrasonic, and RF	protection.

stable into reactive or mismatched

loads

- Load protection	: On/off muting,

Triac crowbar: ISA750, ISA1350 and

ISA800Ti

AC coupling: ISA280, ISA300Ti,

ISA450, ISA500Ti

- Dimensions(HxWxD)	: 5.25”(13.3cm) 3rack spaces x

19”(48.3cm) rack mounting x

15.9”(40cm) deep from front

mounting rails

- Weight

Net	: 49lbs(22.3kg)

Shipping	: 55lbs(25kg)

- Power requirements	: 100, 120, 230 VAC, 50Hz~60Hz

** ISA500Ti 또는 동등 이상품 이어야 한다.