SKU: 20601458264

HERTZ Dieci Power DP 4.400 - 4 Channel Amplifier

Sale price$121.50 Regular price$135.00
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Description

HERTZ Dieci Power DP 4.400 - 4 Channel AmplifierHertz DIECI POWER amplifier DP 4. 400 is an audio powerhouse designed to elevate your car audio experience to unprecedented heights. Boasting High Resolution Audio Certification, this amplifier delivers an impressive frequency response of 10 Hz to 45 kHz, ensuring that every nuance of your music is faithfully reproduced with crystal clear precision. Despite its compact size, the DP 4. 400 packs a punch with its maximum power output, featuring fully

Hertz DIECI POWER amplifier DP 4.400 is an audio powerhouse designed to elevate your car audio experience to unprecedented heights. Boasting High-Resolution Audio Certification, this amplifier delivers an impressive frequency response of 10 Hz to 45 kHz, ensuring that every nuance of your music is faithfully reproduced with crystal-clear precision.

Despite its compact size, the DP 4.400 packs a punch with its maximum power output, featuring fully bridgeable 4-channel Class-AB amplification and 2Ω stability. This innovative design allows for a potent audio performance without sacrificing space, making it an ideal choice for those seeking uncompromised sound in a limited footprint.

The amplifier's aesthetics are as impressive as its performance. An elegant status LED, solid machined terminal block, and a removable top panel that safeguards controls and connections contribute to a sleek and sophisticated design that seamlessly integrates into any car interior.

Universal compatibility is a key feature of the DP 4.400, offering an operating supply voltage ranging from 6.5 to 16.5 V and speaker-in input sensitivity from 1.6 to 40 Vrms. The integrated Universal Speaker Simulator enhances versatility, ensuring optimal performance with a wide range of audio sources.

Experience high-noise rejection with the balanced input circuitry of the Pre-in and Speaker-in, allowing for clean and interference-free signal transmission. The full set of controls, including adjustable input levels, high/low-pass crossover filters (50-4000Hz 12dB/Oct.), and bass boost, provides users with the flexibility to fine-tune the audio to their preferences.

Convenience meets intelligence with the Automatic Remote Turn-On/Off feature, seamlessly triggered by OEM radio speaker outputs. This ensures hassle-free operation and an efficient power management system.

Whether utilizing Speaker-In or Pre-In level inputs, the DP 4.400 offers full-range pre-outs, providing further flexibility in system configuration. Elevate your car audio system with the Hertz DIECI POWER Amplifier DP 4.400 – where power, precision, and style converge for an unparalleled listening experience on the road.

 

  • High-Resolution Audio Certification: Hi-Res Audio certification featuring a frequency response of 10 Hz – 45 kHz.
  • Maximum Power in Compact Size: fully bridgeable 4-channel Class-AB 2Ω stable power outputs in a small and compact design.
  • Attractive Design: elegant status LED, solid machined terminal block and removable top panel to protect controls and connections.
  • Universal Compatibility: operating supply voltage from 9 to 16.5 V and speaker-in input sensitivity from 1.6 to 40 Vrms with integrated Universal Speaker Simulator.
  • High-noise rejection: Pre-in and Speaker-in featuring balanced input circuitry.
  • Full set of controls: adjustable input levels, high/low-pass crossover filters (50-4000Hz 12dB/Oct.), and bass boost to fine-tune the sound according to your preferences.
  • Automatic Remote Turn-On/Off: driven by OEM radio speak
  • Full-Range pre-outs: available both when using Speaker-In and Pre-in level inputs.
General Specs
Channels 4 - 3 - 2
Amp class AB
POWER SUPPLY
Nominal power supply voltage (fuse) 11 ÷ 15 VDC (2 x 25 A)
Operating power supply voltage 6.5 ÷ 16.5 VDC
Idling current 0.85 A
Standby current draw 10 uA
Consumption, MIN load impedance (Max Musical Power) 30 A
Remote IN 4 ÷ 15 VDC (1.5 mA)
ART - Automatic Remote Turn on/off from 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
@ 4 Ch: 2 Ω
@ 3 Ch: 2 Ω + 2 Ω + 4 Ω
@ 2 Ch: 4 Ω
Adjustable Crossovers yes
Output Power
Output power (RMS) @ 1% THD:
4Ch @ 4Ω 75 W x 4
4Ch @ 2Ω 105 W x 4
3Ch @ 4Ω 75 W x 2 + 210 W x 1
3Ch @ 2Ω / 4Ω 105 W x 2 + 210 W x 1
2Ch @ 4Ω 210 W x 2
Output Power (RMS) @ 14.4 VDC, THD 10%:
4Ch @ 4Ω 90 W x 4
4Ch @ 2Ω 125 W x 4
3Ch @ 4Ω 90 W x 2 + 250 W x 1
3Ch @ 2Ω / 4Ω 125 W x 2 + 250 W x 1
2Ch @ 4Ω 250 W x 2
Total Power 1000 W
INPUTS / FILTERS
Inputs Pre-In / Speaker-In
Pre Out Full Range (Front)
Pre-In sensitivity 0.32 ÷ 8 VRMS
Speaker-In sensitivity 1.6 ÷ 40 VRMS
Front Ch Hi-Pass Full / 50-4000Hz 12dB/Oct.
Front Ch Lo-Pass Full / 50-4000Hz 12dB/Oct.
Rear Ch Hi-Pass Full / 50-4000Hz 12dB/Oct.
Rear Ch Lo-Pass Full / 50-4000Hz 12dB/Oct.
Bass Boost 50Hz 0 ÷ 9 dB
Physical Specs
Dimension mm in
A 335 13.19
B 297 11.69
C 190 7.48
D 166 6.53
E 50 1.96
Weight Kg lbs
2.88 6.35
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20601458264

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4.4 ★★★★★
Based on 26 reviews
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A
Verified Purchase
Amazon Customer
Lake Worth, US
★★★★★ 5
Ideal speaker wall mounts
Size: Standard--black
These speaker mounts were better than expected for the price. The mounts hold the speakers securely also tilt and swivel to get the sound where needed. Well thought out design, easy to mount, looks great also. Mounting hardware was included. I would purchase again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 26, 2025
B
Verified Purchase
Bret BigDawg
West Palm Beach, US
★★★★★ 5
Well made, sturdy, and work great!
Work great for our KEF bookshelf speakers, would definitely buy again!
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Reviewed in the United States on April 28, 2026
C
Verified Purchase
Colby D. May
Lake Worth, US
★★★★★ 4
Almost perfect, absolutely fit for purpose, and a great value
Size: Standard--black
These are really, really close to being five stars, but because of my OCD tendencies when it comes to things being true and level, I can only go four. The way these mounts are made, speakers rest inside and on the inner surface of the L-shaped adjustable side brackets, and not on the large metal plate between them. Leveling on the fore-and-aft plane can easily be handled via the adjustment nut on the bottom of the bracket. But there is no provision for side-to-side leveling, so if the manufacturing of the side brackets is not within tolerance, you'll wind up with a speaker that's ever-so-slightly wonky...which is the case with ONE of my mounts. The bubble is still between the lines, but it's kissing the left line. Most would not care about this, and I'm not too bummed about it, but I am able to see that much out-of-true with the naked eye. It's not enough to pursue any kind of remediation, because the value on these really is awfully good. They are solidly built, easy to install, and easy to adjust. The manufacturer is apparently improving the product as they go based on feedback, as some issues that have vexed other owners have not been a problem for me, such as the wall plates being or coming loose (the design now ensures they stay put once pushed back to the wall), or the adjustment nut and bolt rotating freely and not staying tight (the ones on mine are great and function as intended). For the price, these are really hard to beat, and I have a feeling all the mounts like this with the different oddly-named brands are made in the same factory. That being the case, get the cheapest ones, and the day I bought mine, these were those.
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Reviewed in the United States on September 15, 2025
S
Verified Purchase
Seth Johnson
San Leandro, US
★★★★★ 5
Solid and easy to install
Size: Standard--black
These are nice, solid wall mounts. They assembled quickly and easily, and they can hold larger bookshelf speakers like my Cambridge Soundworks M60s. Adjusting the plate to match speaker size is pretty easy, and they seem to grip the speaker tight enough that they won't fall off. The tilt option is very useful and a good feature when speakers are mounted high and need to tilt down toward the listener. Just remember to tighten the bolt on the bottom once you've positioned it where you want it. I would definitely recommend these to anyone looking for solid, well priced speaker mounts.
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Reviewed in the United States on March 30, 2025
M
Verified Purchase
Mark K
Carnegie, US
★★★★★ 5
Well made. Easy install.
Size: Standard--black, Size: Standard--black
These were easy to install. All the hardware was included. They look good. Seems well made.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026

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