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Hertz DPower 4

600W Peak (300W RMS) Class D DPower Series 4-Channel Car Amplifier

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• 50 watts x 4 channel @ 4 ohm
• 65 watts x 4 channel @ 2 ohm
• Bridged: 130 watts x 2 channel @ 4 ohm
• Total RMS Power: 300 watts
• Class D 2 ohm Stable 4-Channel Amplifier

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Description


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Hertz DPower 4

Excellent for OEM systems upgrade, the Hertz DPower4 four channels car audio amplifiers are ultra-compact to ensure effortless installations in the increasingly narrow spaces of modern vehicles or in the factory amp area. The efficient D Class circuit delivers 600 W of maximum power within a compact chassis, an essential requirement for in-car integration. The versatile crossover filter of the DPower 4 enables the user to create a front-rear or front + subwoofer system by connecting two channels in bridged mode.

The double SPEAKER & RCA INPUTS allows the DPower4 to connect to any type of source, be it OEM or aftermarket. For an excellent integration with OEM systems the DPower4 is equipped with a smart automated turn on and off circuit according to the factory radio.


Product Details:

  • DPower Series Class D 2 ohm Stable 4-Channel Amplifier
  • RMS Power Rating:
    • 4-ohms: 50 watts x 4-channel
    • 4-ohms: 50 watts x 2-channel + 130 watts x 1-channel
    • 4-ohms: 130 watts x 2-channel
    • 2-ohms: 65 watts x 4-channel
    • 2-ohms: 65 watts x 2-channel + 130 watts x 1-channel
  • Total RMS power output: 300 watts
  • LED Power/Protect Light
  • Optional HRC BM wired bass level remote control (Sold separately)
  • Speaker-level (high-level) inputs
  • 1 pair of pre-amp outputs
  • Ultra compact design for OEM system upgrade
  • Automatic remote turn on/off
  • Protection circuitry (thermal, overload, and speaker short protection)
  • Input sensitivity:
    • Low level: 0.2 - 5 volts
    • High level: 0.8 - 20 volts
  • Frequency Response: 10 - 30000 Hz
  • Total Harmonic Distortion (THD): 0.2%
  • Signal to Noise Ratio: 95 dB
  • Variable high-pass filter: 40 - 220 Hz
  • Variable low-pass filter: 40 - 220 Hz
  • Fuse Rating: 20A
  • 8 AWG gauge amplifier wiring kit is recommended for installation
  • Dimensions: 8.75" L x 5.59" W x 1.99" H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
  • MFR #: DPower 4


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Specifications & Details


Key Features
Amplifier Key Features
Speaker Level Inputs
Power Specifications - Full Range Channels
RMS Power @ 4 ohms
50 watts x 4 channel
RMS Power @ 2 ohms
65 watts x 4 channel
Bridged RMS Power
130 watts x 2 channel
Amplifier Specifications
Series
DPower Series
Amplifier Class
D
Number of Channels
4-Channel
Total Peak Power Output
600 watts
Total RMS Power Output
300 watts
Maximum Input Gauge Size
8 AWG
Minimum Impedance Unbridged
2 ohm
Minimum Impedance Bridged
4 ohms
Frequency Response
10 - 30000 Hz
THD at Rated RMS Power
0.2%
Speaker Level Inputs
Yes
Preamp Outputs
1 pair
Built-in Crossover
Low-Pass (LP)
High-Pass (HP)
Full (AP)
High-Pass Crossover Frequency
40 - 220 Hz
Low-Pass Crossover Frequency
40 - 220 Hz
Signal-to-Noise Ratio
95 dB
Remote bass/level controller
No
Fuse Rating
20A x 1 
Total Fuse Rating
20
Strappable
No
Sonic Certified Amplifier
Not Tested
Amp Bluetooth Connectivity
No
Hi-Res Certified
No
Low-Level Input Sensitivity
0.2 - 5 volts
High-Level Input Sensitivity
0.8 - 20 volts
What is in the box?
Paperwork
User manual
Quick start guide
WITB: Amplifiers
Amplifier
Mounting screws (6)
Washers (6)
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

DPower 4

Weight:

1.88lbs

Internal SKU:

dpower4

Internal Product ID:

202237

Customer Ratings & Reviews


Hertz DPower 4 thumbnail image

5 star
0%
4 star
100%
3 star
0%
2 star
0%
1 star
0%



Durability
4
Value
4
Features
4
Design
5
Usability
4

Customer Photos & Videos


Customer Reviews

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Hertz DPower4 - 4 channel amp

Nice compact amp. Sounds pretty good but does leave a bit more power to be desired. After reviewing the Hertz website, the specs for this amp rate the 14.4v power output at both 1 and 10% THD. I am not sure how 10% THD is invoked or if this is a common configuration but that sounds like a lot of distortion. I am running it at 4x4ohms. I would also prefer direct connect terminals instead of requiring spade connectors for all connections.

By Tommy on May 24, 2025 Checkmark Icon Verified purchase




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