Product information Hertz DP 4.400 - 4-channel amplifier

The Hertz DIECI POWER amplifier DP 4.400 is an audio powerhouse designed to take your car audio experience to an unprecedented level.
This amplifier has High-Resolution Audio certification and delivers an impressive frequency response of 10 Hz to 50 kHz, ensuring that every nuance of your music is reproduced faithfully and with crystal-clear precision.
Despite its compact size, the DP 4.400 impresses with its maximum output power, which features fully bridgeable 4-channel Class AB amplification and 2 Ω stability.
This innovative design allows for powerful audio performance without sacrificing space, making it the ideal choice for those seeking uncompromising sound in limited spaces.
The amplifier's aesthetics are as impressive as its performance.
A stylish status LED, solid milled terminal block and a removable top plate that protects controls and connectors contribute to a sleek and sophisticated design that blends seamlessly into any vehicle interior.
Universal compatibility is a key feature of the DP 4.400, which offers an operating supply voltage of 9 to 16.5 V and a speaker input sensitivity of 1.6 to 40 VRms.
The integrated Universal Speaker Simulator increases versatility and ensures optimal performance with a wide range of audio sources.
Experience very low noise with the balanced input circuitry of the Pre-in and Speaker-in, which enables clean and interference-free signal transmission.
The full set of settings, including adjustable input levels, high/low pass crossover (50-4000 Hz 12 dB/oct) and bass boost, gives the user the flexibility to tailor the sound to their preferences.
Convenience meets intelligence with the Auto On/Off feature, which is seamlessly triggered by OEM radio speaker outputs.
This ensures smooth operation and an efficient power management system.
Whether you use Speaker-in or Pre-in inputs, the DP 4,400 offers full-range Pre-outs, providing additional flexibility in system configuration.
Take your car audio system to a new level with the Hertz DIECI POWER Amplifier DP 2.200, where power, precision and style come together for an unparalleled listening experience on the road.

Description

POWER SUPPLY :

• Nominal power supply voltage (fuse) 11 ÷ 15 VDC (2 x 25 A)
• Power supply operating voltage 6.5 ÷ 16.5 VDC-
• No-load current 0.85 A
• Standby current 10 uA
• Consumption, MIN load impedance (Max Musical Power) 30 A
• Remote control IN 4 ÷ 15 VDC (1.5 mA)
• ART - Automatic remote turn-on of SPK-IN (BTL radio only) 1.5 VDC
• Efficiency 60%
• AMPLIFIER STAGE  
• Distortion - THD @ 100 Hz, 70% rated power 0.01%
• Damping factor @ 1 kHz, 1W 130
• Bandwidth @ -3 dB 10Hz ÷ 45kHz
• S/N ratio (A-weighted @ 1 V input) 101 dBA
• Minimum load impedance  
• for 4 channels: 2 Ohm
• for 3 channels: 2 Ohm + 2 Ohm + 4 Ohm
• with 2 channels: 4 Ohm
• Adjustable crossovers yes

INPUTS / FILTERS:

•  Inputs Pre-In / Speaker-In
•  Pre-Out full range (front)
• Sensitivity Pre-In 0.32 ÷ 8 VRMS
•  Speaker-In sensitivity 1.6 ÷ 40 VRMS
•  Front channel Hi-Pass Full / 50-4000Hz 12dB/Oct.
•  Front channel Lo-Pass Full / 50-4000Hz 12dB/Oct.
•  Rear channel Hi-Pass Full / 50-4000Hz 12dB/Oct.
•  Rear channel Lo-Pass Full / 50-4000Hz 12dB/Oct.
•  Bass boost 50Hz 0 ÷ 9 dB