DP 4.400 (B-Ware)

Refurbished due to damaged or incomplete original packaging, or minor cosmetic defects. The same warranty conditions apply to refurbished products as to our new products. The product is technically flawless.

The DP 4.400 is a 4-Channel Amplifier from Hertz with High-Resolution Audio certification. The Class-AB amplification is fully bridgeable and stable at 2 Ω, channels 4 - 3 - 2. The bandwidth at -3 dB ranges from 10 Hz to 45 kHz, the signal-to-noise ratio is 101 dBA, the damping factor is 130 at 1 kHz and 1 W, the distortion is 0.01% at 100 Hz and 70% rated power, and the efficiency is 60%. The supply voltage is 6.5 - 16.5 VDC, the nominal supply is 11 - 15 VDC via 2 x 25 A fuses, the idle current is 0.85 A, and the standby current draw is 10 uA. There are preamplifier and speaker inputs available, a full-range preamplifier output for front, pre-in sensitivity 0.32 - 8 VRMS, and speaker-in sensitivity 1.6 - 40 VRMS. Adjustable crossovers with high-pass and low-pass Full/50 - 4000 Hz at 12 dB/octave for front and rear as well as bass boost at 50 Hz from 0 - 9 dB are integrated. ART automatic remote control for turning SPK-IN on/off (only BTL radio) and minimum load impedances of 4 channels 2 Ω, 3 channels 2 Ω + 2 Ω + 4 Ω, and 2 channels 4 Ω are available.

• 4-Channel Amplifier
• Amplifier Class AB
• Fully bridgeable
• Channels 4 - 3 - 2
• Stable at 2 Ω
• High-Resolution Audio certification
• Inputs for preamplifier and speaker
• Full-range preamplifier output for front
• Adjustable crossovers
• Front high-pass Full or 50 - 4000 Hz, 12 dB/oct.
• Front low-pass Full or 50 - 4000 Hz, 12 dB/oct.
• Rear high-pass Full or 50 - 4000 Hz, 12 dB/oct.
• Rear low-pass Full or 50 - 4000 Hz, 12 dB/oct.
• Bass Boost 50 Hz 0 - 9 dB
• Pre-in sensitivity 0.32 - 8 VRMS
• Speaker-in sensitivity 1.6 - 40 VRMS
• ART automatic remote control for turning SPK-IN on/off only BTL radio
• Minimum load impedance 4 channels 2 Ω
• Minimum load impedance 3 channels 2 Ω + 2 Ω + 4 Ω
• Minimum load impedance 2 channels 4 Ω

• Operating voltage 6.5 - 16.5 VDC
• Nominal supply voltage 11 - 15 VDC
• Fuses 2 x 25 A
• Idle current 0.85 A
• Standby current draw 10 uA
• Consumption at minimum load impedance maximum music power 30 A
• Remote control IN 4 - 15 VDC 1.5 mA
• Efficiency 60 %
• Distortion THD at 100 Hz 70 % rated power 0.01 %
• Damping factor at 1 kHz 1 W 130
• Bandwidth at -3 dB 10 Hz - 45 kHz
• Signal-to-noise ratio A-weighted at 1 V input 101 dBA
• Output power RMS at 1 % THD 4 channels at 4 Ω 75 W x 4
• Output power RMS at 1 % THD 4 channels at 2 Ω 105 W x 4
• Output power RMS at 1 % THD 3 channels at 4 Ω 75 W x 2 + 210 W x 1
• Output power RMS at 1 % THD 3 channels at 2 Ω/4 Ω 105 W x 2 + 210 W x 1
• Output power RMS at 1 % THD 2 channels at 4 Ω 210 W x 2
• Output power at 14.4 VDC 10 % THD 4 channels at 4 Ω 90 W x 4
• Output power at 14.4 VDC 10 % THD 4 channels at 2 Ω 125 W x 4
• Output power at 14.4 VDC 10 % THD 3 channels at 4 Ω 90 W x 2 + 250 W x 1
• Output power at 14.4 VDC 10 % THD 3 channels at 2 Ω/4 Ω 125 W x 2 + 250 W x 1
• Output power at 14.4 VDC 10 % THD 2 channels at 4 Ω 250 W x 2
• Total power 1000 W