Description

Hertz DP 4.400 – 4 Channel Class-AB High-Resolution Car Amplifier (1000W)

Hertz DP 4.400 – Premium 4 Channel Car Amplifier with High-Resolution Audio Performance

The Hertz DIECI POWER DP 4.400 is a premium 4-channel Class-AB car amplifier engineered to deliver exceptional sound quality, high power and outstanding installation flexibility. Certified for High-Resolution Audio, it reproduces music with remarkable clarity across an ultra-wide 10 Hz – 45 kHz frequency range.

Delivering up to 4 × 125W RMS at 2 ohms or 250W x 2 bridged, the DP 4.400 is ideal for powering component speakers, front and rear audio systems or combined speaker and subwoofer configurations.

High-Resolution Audio Certified

Designed for audiophiles and demanding listeners, the DP 4.400 offers:

• High-Resolution Audio Certification
• Ultra-wide frequency response: 10 Hz – 45 kHz
• Signal-to-noise ratio: 101 dBA
• Ultra-low distortion: 0.01% THD
• High damping factor (130) for excellent speaker control

The result is detailed, dynamic and highly accurate sound reproduction.

Powerful 4-Channel Performance

RMS Power (1% THD)

4-Channel Mode

• 4 × 75W @ 4 Ω
• 4 × 105W @ 2 Ω

3-Channel Mode

• 2 × 75W + 210W @ 4 Ω
• 2 × 105W + 210W @ 2 Ω / 4 Ω

Bridged Mode

• 2 × 210W @ 4 Ω

RMS Power (10% THD)

4-Channel Mode

• 4 × 90W @ 4 Ω
• 4 × 125W @ 2 Ω

3-Channel Mode

• 2 × 90W + 250W @ 4 Ω
• 2 × 125W + 250W @ 2 Ω / 4 Ω

Bridged Mode

• 2 × 250W @ 4 Ω

Maximum Total Power: 1000W

Its bridgeable design makes the amplifier suitable for both speaker-only systems and installations combining speakers with a dedicated subwoofer.

Advanced Active Crossovers

The DP 4.400 includes independent crossover controls for each channel pair.

High-Pass Filter

• Full Range
• Adjustable 50 Hz – 4000 Hz
• 12 dB/Oct.

Low-Pass Filter

• Full Range
• Adjustable 50 Hz – 4000 Hz
• 12 dB/Oct.

Bass Boost

• Adjustable from 0 to +9 dB @ 50 Hz

These tuning options allow precise optimization of speakers, midbass drivers and subwoofers.

OEM & Aftermarket Compatibility

The DP 4.400 integrates seamlessly into factory and aftermarket audio systems.

Features include:

• RCA Pre-In inputs
• Speaker-Level Inputs
• Automatic Remote Turn-On (ART)
• Universal Speaker Simulator (USS)
• Full-Range Front Pre-Out
• Balanced input circuitry for outstanding noise rejection

These features simplify installation while maintaining excellent sound quality.

Premium Compact Design

Despite delivering 1000W total power, the DP 4.400 maintains a compact footprint suitable for installations where space is limited.

Premium design features include:

• CNC-machined terminals
• Elegant LED status indicator
• Removable aluminium top cover
• Robust aluminium chassis for efficient cooling

Key Benefits

• High-Resolution Audio Certified
• Premium 4-channel Class-AB amplifier
• Up to 4 × 125W RMS @ 2 Ω
• Up to 250W × 2 bridged
• 1000W total power
• Ultra-low 0.01% THD
• HPF and LPF crossovers
• Adjustable Bass Boost
• Automatic Remote Turn-On
• Universal Speaker Simulator
• Full-Range Pre-Out
• OEM and aftermarket compatibility
• Compact installation design

Recommended Applications

The Hertz DP 4.400 is ideal for:

• Premium factory audio upgrades
• Component speaker systems
• Front and rear speaker amplification
• 3-channel speaker and subwoofer systems
• High-quality daily driver audio builds
• Custom aftermarket installations

Technical Specifications

Why Choose Hertz DP 4.400?

The Hertz DP 4.400 is the flagship 4-channel amplifier in the Dieci Power lineup, combining High-Resolution Audio certification, outstanding Class-AB sound quality and flexible installation options. Whether you’re upgrading a factory audio system or building a high-performance setup, it delivers the power, clarity and reliability expected from Hertz.

Upgrade Your Car Audio Experience

A dedicated amplifier unlocks the full potential of your speakers by providing cleaner sound, greater dynamics and superior control. The Hertz DP 4.400 offers premium performance, versatile tuning options and exceptional build quality, making it an excellent choice for enthusiasts who refuse to compromise.

Choose Hertz DP 4.400 for powerful performance, High-Resolution Audio quality and legendary Hertz engineering.