• Số 1B, dãy C, ngõ 24 Hoàng Quốc Việt, Cầu Giấy, Hà Nội
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Bachvietpro

DCA 1622 khuyếch đại âm thanh

Liên hệ

DCA 1622 Power Amplifier/ Bộ khuyếch đại âm thanh

Features: 2-Channel Power Amplifier

  • Active Inrush Limiting - won't blow circuit breakers at turn-on (a QSC cinema exclusive!)
  • Both speaker and monitor panel outputs (a QSC cinema exclusive!)
  • Exclusive PowerLight power supply for great bass (a QSC cinema exclusive!)
  • A hum-free noise floor and ultra-low distortion
  • Optional crossover modules for bi-amp, tri-amp and subwoofer applications
  • Only 3.5 inches high; even the most powerful systems can be built with only one rack
  • DataPort interface for DCP Digital Cinema Processors and DCM Digital Cinema Monitors - a QSC cinema exclusive!
  • Patented Output Averaging™ short circuit protection
  • 14" deep - works with standard depth racks for lower cost and less floor space
  • Only 21 pounds, for easier racking and shipping - no need to remove amps from pre-wired systems before shipping
  • Gain control security cover protects amp against tampering and misadjustment
  • Variable-speed fan cooling and back-to-front air flow
  • Neutrik Speakon® and safety-shrouded barrier strip output connectors
  • LED indicators for metering, status, and operating mode (a QSC cinema exclusive!)

SPECIFICATIONS

DCA 1222

DCA 1622

DCA 2422

DCA 3022

DCA 3422

8Ω, 20 Hz–20 kHz, 0.03% THD

200 W

300 W

425 W

550 W

700 W

4Ω, 20 Hz–20 kHz 0.05% THD

325 W

500 W

700 W

900 W

1100 W

EIA: 1 kHz, 1% THD @



215 W
375 W
600 W


350 W
600 W
800 W


475 W
825 W
1200 W


625 W
1050 W
1500 W


800 W
1250 W
1700 W

 

BRIDGED MONO MODE

16Ω, 20 Hz–20 kHz, 0.1% THD

400 W

600 W

850 W

1100 W

1400 W

8Ω, 20 Hz–20 kHz, 0.1% THD

700 W

1100 W

1500 W

2000 W

2200 W

4Ω, 1 kHz, 1% THD

1200 W

1600 W

2400 W

3000 W

3400 W

Signal to Noise
20 Hz–20 kHz, unweighted

> 106 dB

> 107 dB

> 108 dB

> 107 dB

> 107 dB

Input Sensitivity
full rated power @ 8 ohms

1.0 V rms
+2.2 dBu

1.2 V rms
+3.9 dBu

1.5 V rms
+5.5 dBu

1.7 V rms
+6.8 dBu

1.9 V rms
+7.8 dBu

Input Sensitivity
full rated power @ 4 ohms

0.9 V rms
+1.3 dBu

1.1 V rms
+3.2 dBu

1.3 V rms
+4.6 dBu

1.5 V rms
+5.7 dBu

1.7 V rms
+6.8 dBu

Output Circuitry Class Type

AB

AB

2-Step H

2-Step H

2-Step H

Distortion (SMPTE-IM)

< 0.01%

< 0.01%

< 0.02%

< 0.02%

< 0.02%

 

ALL MODELS

Distortion (Typical)
20 Hz–20 kHz: 10 dB below rated power
1.0 kHz and below: full rated power


Less than 0.01% THD @ 8 and 4 ohms
Less than 0.01% THD @ 8 and 4 ohms

Frequency Response
(LF filter switched off)

20 Hz–20 kHz, ± 0.2 dB
8 Hz–50 kHz, + 0/-3 dB

Damping Factor 1 kHz and below

Greater than 500

Input Impedance

10 kΩ unbalanced, 20 kΩ balanced

Input Clipping

10 V rms (+22 dBu)

Cooling

Variable-speed fan, rear-to-front air flow

Connectors, each channel

Input: 1/4" TRS, 3-pin XLR & 3-pin detachable terminal block
Output: Neutrik Speakon® and safety-shrouded barrier strip, including Monitor output

DataPort: One HD15

Voltage Gain at 8 ohms

40x (32 dB)

Controls

Front: AC switch, Ch. 1 and Ch. 1 recessed gain knobs
Rear: DIP switch (Clip Limiter on/off, each channel; LF Filter on/off, each channel; LF Filter Freq select 30 or 50 Hz, each channel; Inputs Parallel or Stereo; Bridge Mode)

Indicators

1 each per channel: 
CLIP/PROT: Red LED
LEVEL -10 dB: Green LED
LEVEL -20 dB: Green LED
SIGNAL -35 dB: Green LED
BRIDGED: Yellow LED
PARALLEL INPUTS: Yellow LED
POWER: Green LED

Amplifier Protection

Full short circuit, open circuit, thermal, ultrasonic, and RF protection.
Stable into reactive or mismatched loads.

Load Protection

On/off muting, DC-fault power supply shutdown

Dimensions (HWD) inches

3.5 x 19 x 14

Dimensions (HWD) mm

89 x 483 x 356

Weight

21 lb (9.5 kg) net

Optional Accessories
Download the Cinema Accessories for DCA Amps User Manual (PDF 410k)

XC-3 Cinema Crossover, for bi-amp applications with all commonly used cinema speakers
SF-3 Subwoofer Filter, an adjustable highpass filter for subwoofers
LF-3 Low Frequency Filter, used with the XC-3 for tri-amp applications

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