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Technical Highlights
- 2-channel amplifier, high-resolution audio, 10 Hz to 50 kHz.
- Compact design, bridgeable, 2 Ω stability, elegant LED.
- Symmetrical input circuit, automatic functions.
- More technical details
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DP 2,200 by Hertz
The Hertz DP 2.200 is a 2-Channel Amplifier of Class AB. It features a High-Resolution Audio certification and a bandwidth at -3 dB from 10 Hz to 45 kHz. The amplifier is fully bridgeable with minimum loads of 2 Ohms at 2 channels and 4 Ohms at 1 channel. Adjustable crossovers with Hi-Pass full range or 50–4000 Hz at 12 dB/oct. and Lo-Pass are integrated. A balanced input circuit, preamplifier/speaker inputs, and a full-range Pre Out are available; the Pre-In sensitivity is 0.32–8 VRMS, and the Speaker-In sensitivity is 1.6–40 VRMS. ART allows automatic on/off via SPK-IN (only BTL radio) at 1.5 VDC. A status LED, a machined terminal block, and a removable top plate are included.
- 2-Channel Amplifier
- Amplifier Class AB
- High-Resolution Audio certification
- Fully bridgeable
- Minimum load 2 Ohms (2 channels)
- Minimum load 4 Ohms (1 channel)
- Bandwidth at -3 dB: 10 Hz – 45 kHz
- Balanced input circuit
- Adjustable crossovers: Hi-Pass full range / 50–4000 Hz, 12 dB/oct.
- Lo-Pass
- Inputs: Preamplifier input / Speaker input
- Pre Out full range
- Pre-In sensitivity: 0.32 – 8 VRMS
- Speaker-In sensitivity: 1.6 – 40 VRMS
- ART automatic on/off via SPK-IN (only BTL radio), 1.5 VDC
- Status LED
- Solid machined terminal block
- Removable top plate
- Channels: 2 / 1 (bridged)
- Operating voltage: 6.5 – 16.5 VDC
- Nominal supply voltage (Fuse): 11 – 15 VDC
- Fuses: 2 x 20 A
- Idle current: 0.65 A
- Standby power consumption: 5 uA
- Consumption at minimum load (maximum music power): 15 A
- Remote IN: 4 – 15 VDC (1.5 mA)
- Efficiency: 60 %
- Distortion (THD) at 100 Hz, 70 % nominal power: 0.01 %
- Damping factor at 1 kHz, 1 W: 130
- Signal-to-noise ratio (A-weighted at 1 V input): 100 dBA
- Output power (RMS) at 1 % THD, 14.4 VDC: 80 W x 2 (4 Ohms)
- Output power (RMS) at 1 % THD, 14.4 VDC: 110 W x 2 (2 Ohms)
- Output power (RMS) at 1 % THD, 14.4 VDC: 220 W x 1 (4 Ohms)
- Output power (RMS) at 10 % THD, 14.4 VDC: 95 W x 2 (4 Ohms)
- Output power (RMS) at 10 % THD, 14.4 VDC: 130 W x 2 (2 Ohms)
- Output power (RMS) at 10 % THD, 14.4 VDC: 260 W x 1 (4 Ohms)
- Total power: 520 W

