Best Dsp Endstufe 2025

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Last Updated - 26.07.2025

Best Choice

01

AXTON

AXTON A894DSP - 8.1 Channel Power Amplifier with DSP, Car Amplifier with Digital Sound Processor, Mobile Phone App Control, Bluetooth Audio Streaming, Hi-Res Audio Optional

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9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The integrated digital sound processor allows extensive sound settings per channel such as runtime correction, freely configurable frequency filters (6/12/18/24 dB in the three selectable characteristics Butterworth, Bessel and Linkwitz-Riley), gain controls and a parametric 31-band equalizer. Integrated in the app are also setups (channel routing and a preset of the cut-off frequencies) for each of the optional vehicle-specific plug & play connection cables.
The integrated Bluetooth audio streaming interface allows you to easily stream your own music collection to the amp. The A894DSP also offers the ability to play Hi-Res Audio music data with the separately available streaming interface ABT50 (ASIN B08LPNTHKQ). Thanks to the optical inputs and outputs, several AXTON DSP amplifiers can be connected to each other without loss. The A894DSP can be connected to a separately available remote control (ASIN B08MFFSZ7L).
The extensive BTL modes (bridge operation) offer flexible choice of output channels, such as 8.0, 6.1, 4.2 or even 4.1 with up to 400W RMS @ 2 ohms for the subwoofer. The dual mono RCA output or the optical output allows the individual signal to be conveniently forwarded to a separate subwoofer or centre amplifier. All functions of the DSP settings can be controlled via a single AXTON smartphone app, which is available free of charge for iOS and Android.
The compact 8.1-channel SMART DSP amplifier A894DSP is the ideal upgrade for many factory-integrated sound systems. Six high-level inputs and matching optional Plug & Play cables allow you to connect to standard sound systems as well as to various partially and fully active car audio systems. The input channels can be distributed, split or merged completely flexibly to the output channels. The music signal can even be linearised via input equalizer.
Technical Data - RMS output powers @ 4Ω: 8 x 60W, @ 2Ω: 8 x 75W, in BLT4.2 mode CH 5+6 / CH7+8 @ 4Ω: 2 x 230W, in BLT4.1 mode CH 5+6+CH7+8 @ 4Ω: 1x 230 W, In BLT4.1 mode CH 5+6+CH7+8 @ 2 Ω: 1 x 400 W, playback range: 20 Hz ~ 20 kHz, dimensions (L x W x H): 238 x 180 x 50 mm · Box contents: A894DSP, 24 pin main connection cable, 8 pin connection cable for 8 pin .0 mode, 8 pin connection cable for 6.1 mode, 8 pin connection cable for 4.2 mode, 8 pin connection cable for 4.1 mode

444,00 €
02

Hifonics

HiFonics ZXR800/8DSP - 10 Channel DSP with 8 Channel Car Hi-Fi Amplifier | Integrated Bluetooth 5.0 | MX-Connect® Connect® Connection, Compatible with Plug & Play Adapter Cables for Many Vehicle Types

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9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Power: 8 x 35 watts RMS @ 4 ohms | 8 x 50 watts RMS @ 2 ohms | Class A/B 8 channel amplifier
Outputs: 10 x signal output RCA @ 2 V/RMS, 8 x speaker output via 2 x cable connectors, REM OUT function
Optional remote control: HF-DMC, dimensions: 150 x 50 x 253 mm
Inputs: 6 x high level inputs via Molex connector, 1 x stereo AUX IN RCA R/L, 1 x optical stereo, S/PDIF 192 kHz, 24 bit, 1 x integrated Bluetooth 5.0 receiver for controlling the DSP via app and full HD A2DP/aptX audio streaming, 1 x USB type B for PC software, 1 x DIN 6. pol for optionale remote control HF-DMC
HiFonics ZXR800/8DSP - 10-channel DSP with 8-channel car Hi-Fi amplifier | integrated Bluetooth 5.0 | MX-Connect connection, compatible with plug & play adapter cables for many vehicle types
DSP Features: Dual Core Audio Signal Processor 32 bit, 122.88 MHz | Sample Rate 48 kHz / Full HD Audio | Crossover HP/LP/BP @ 6-48 dB Edge Steepness | Runtime Correction 0 ~ 15 ms / 0.01 ms Steps | Master Gain - 40 ~ +6 dB | | channel Gain – 40 ~ +6 dB | Phase Shift Normal/Inverted # | Input Mixer, Subwoofer Controller | 10 x 31 Band Output Equalizer, +/-12/18 dB / 0.1 dB Steps | DSP Control via DSP Master | Automatic Power On Function

369,00 €
03

Keenso

Car Digital Sound Processor Amplifier, DC12V Car Amplifier 2/4 Ohm Stable Class AB Car DSP Amplifier Box for Car Sound Systems, Matte Black

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

[Stable Performance] The DSP power amplifier ensures stable sound output at 2/4 ohms and ensures clear audio regardless of volume.
[Pure Sound Quality] The A/B class technology provides a signal-to-noise ratio of 96dB for noise reduction and music recovery.
[Premium Sound Adjustments] Bass/treble control and volume adjustment allow fine tuning for an optimal audio experience.
[Powerful Output] 4 channels with 50W rated power and 60W max power ensure impressive and clear sound on the go.
[Easy Installation] The compact size allows for hassle-free installation in car sound systems, ideal for DIY or professional use.

45,55 €
04

AXTON

AXTON A594DSP: 4-Channel Amplifier with 6 DSP Channels, Optical Input, Power Amplifier Linkable, Equipped with Mobile Phone App Control, Bluetooth Audio Streaming, Hi-Res Audio Optional

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With the integrated Bluetooth unit, you can easily stream your music collection to the amp. You can also play Hi-Res audio files via the car audio system thanks to the additional optical or coaxial inputs. For this purpose, you need the separately available interface ABT50 (ASIN B08LPNTHKQ) as an accessory. Plug & Play connection cables are available from AXTON for over 30 car brands, with which the A594DSP can be easily closed.
The integrated Class D amplifier fires 4 output channels with up to 4 x 50 W RMS. The A594DSP has a stereo preout for the subwoofer channels, so underseat, footwell or kick bass can be adjusted separately in 3-way systems.
The AXTON 4-channel DSP amplifier A594DSP is not only super strong in terms of equipment, but also at price. 6 channels can be configured via the integrated digital sound processor. If more DSP channels are needed, the audio signal is transmitted via the optical output via fibre optic cable to another AXTON DSP amp with optical input. With this concept, it is possible to generate infinitely many DSP channels.
Thanks to plug & play connection, including auto-turn-on function, this power amplifier offers a wide range of uses. The A594DSP can be connected to a remote control (ASIN B08MFFSZ7L) to adjust the overall level and bass boost or mute the volume. Box contents: 1 x DSP amplifier, 1 x Bluetooth antenna. Dimensions (L x W x H): 218 x 114 x 40 mm
Each DSP channel has a parametric 31 band EQ, crossovers up to 24 dB/Oct. (Butterworth, Linkwitz or Bessel), runtime correction and phase correction. With the 9-band INPUT EQ, possible differences in the frequency response of the different input signal sources can be trimmed to a desired frequency response. Channel routing simplifies channel assignment. All settings are done via the AXTON DSP app, which is available free of charge for iOS and Android smartphones.

305,10 €
Value for Money

05

Pioneer

Pioneer GM D1004 Car Amplifier

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

RCA connectors: yes; Speaker inputs ISO type; TPF 80 Hz (-12 dB/oct); HPF 80 Hz (-12 dB/oct); Maximum Input Power 4 x 100 W (4 ohm); 4 x 100 W (2 ohm); 2 x 200 W (4 ohm bridged) W; Frequency response 10 - 40,000 Hz; Distortion < 0.05%; Signal/Noise Distance > 90; Max. Current Power Consumption 15 A; Case Dimensions (W x H x D) 181 x 38 x 64 mm; Device weight 0.55 kg; Car Amplifier Group; CEA 2006 power (THD + N = 1%) 4 x 45 W (20 kHz - 20 kHz / 4 ohm); 2 x 90 W (1 kHz / 4 ohm bridged).
4 x 45W (1 kHz/2 ohm); 74dBA (ref: 1 W at 4 Ohm); Speaker input sensor; Level and Switching Sensor; Compact.

92,75 €
06

Behringer

Behringer NX1000D NX Range of Ultra-Lightweight Class D Power Amplifiers

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Twist-lock speaker connects
Thermal overload protection
SmartSense Speaker Impedance Compensation
300 W Peak/CH at 4 Ohms
2-channel power amplifier

217,00 €
07

Acouto

Car DSP Amplifier 6 Channel High Power HiFi 5.0, Lossless Music Playback, Wireless Tuning for Car Audio System

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

[Versatile Use] Widely compatible with car audio systems and speakers and delivers high quality sound for your convenience.
Wireless tuning options: conveniently set your sound with WLAN WLAN tuning on your computer or mobile device that contains a high-precision EQ system.
Support mobile app control: easily view your U disk song settings and set them on the go.
Premium playback: Enjoy lossless music with HiFi sound quality via the dual mode 5.0, which improves the audio of your car 3-5 times.
Adjustable sound settings: Adjust sound delay, editing memory locations, phase control and 6 mode memory for an optimised audio experience.

80,89 €
08

AXTON

AXTON A544DSP: 4-Channel Amplifier with 10 DSP Channels, Optical Input, Power Amplifier Linkable, Equipped with Mobile Phone App Control, Bluetooth Audio Streaming, Hi-Res Audio Optional

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With the integrated Bluetooth unit, you can easily stream your music collection to the amp. You can also play Hi-Res audio files via the car audio system thanks to the additional optical or coaxial inputs. For this purpose, you need the separately available interface ABT50 (ASIN B08LPNTHKQ) as an accessory. Plug & Play connection cables for over 30 car brands are also available from AXTON with which the A544DSP can be easily closed.
The integrated Class A/B amplifier fires 4 output channels with 4 x 25 W RMS – enough power for a noticeable boost of the series speakers and a sonorous drive for the tweeters in 2-way or 3-way concepts. The other 6 preouts can be forwarded e.g. to a AXTON A601 (ASIN B08RZ3MDQ2), and you get a powerful amplifier combination with 4 x 25 W RMS + 6 x 100 W RMS, which is applicable to the multi-channel systems of many car manufacturers.
The AXTON 4-channel DSP amplifier A544DSP is not only super strong in terms of equipment, but also at price. Incredible 10 channels can be configured via the integrated digital sound processor. If more DSP channels are needed, the audio signal is transmitted via the optical output via fibre optic cable to another AXTON DSP amp with optical input and thus receive up to 20 DSP channels – or theoretically infinite DSP channels.
Thanks to plug & play connection, including auto-turn-on function, this power amplifier offers a wide range of uses. The A544DSP can be connected to a remote control (ASIN B08MFFSZ7L) to adjust the overall level and bass boost or mute the volume. Box contents: 1 x A544DSP, 1 x Bluetooth antenna. Dimensions (L x W x H): 177 x 114 x 40 mm
Each DSP channel has a parametric 15 band EQ, crossovers up to 24 dB/Oct. (Butterworth, Linkwitz or Bessel), runtime correction and phase correction. With the 9-band INPUT EQ, possible differences in the frequency response of the different input signal sources can be trimmed to a desired frequency response. Channel routing simplifies channel assignment. All settings are done via the AXTON DSP app, which is available free of charge for iOS and Android smartphones.

224,10 €
09

AXTON

AXTON A592DSP: 4-Channel Amplifier with DSP, 4 x 150 Watt, Power Amplifier with App Control, Bluetooth Audio Streaming, Hi-Res Audio Optional

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The digital sound processor has useful tools such as: runtime correction, freely configurable frequency filters (6/12/18/24 dB), gain control per channel, a freely configurable parametric 31-band equalizer per channel or 5-band EQ for the subwoofer channel.
The DSP is controlled via Bluetooth via an app, which is available free of charge for iOS and Android smartphones. With this app, all functions are clearly displayed, so that even newcomers can make the DSP settings without prior knowledge. The settings can be saved on the power amplifier or on the mobile phone.
The A592DSP can be connected to a remote control (ASIN B08MFFSZ7L) to adjust the overall level and bass boost or mute the volume. This control function is particularly interesting when the power amplifier is operated "stand-alone", i.e. without radio. Thanks to plug & play connection, including auto-turn-on function, and the integrated 5-channel DSP-controlled preamp outputs, this 2-ohm stable power amplifier offers a wide range of applications.
Included components: 1 x amplifier, 1 x ISO connection cable, 1 x Bluetooth antenna, 1 x user manual (English language not guaranteed)
Ideal upgrade for factory installations - AXTON's compact 4-channel A592DSP amplifier allows you to enjoy extensive sound settings via the integrated digital sound processor. The built-in Bluetooth interface allows you to easily stream your own music collection to the amp. Just pair your smartphone with the amp, press play - and your phone's music collection is available wirelessly in your car, motorhome or truck, even if the radio does not have the appropriate interfaces.
Hi-Res audio files can be played back via the car audio system thanks to the additional optical or coaxial inputs. You need the separately available streaming interface ABT50 (ASIN B08LPNTHKQ) as an accessory: simply plug it into the amplifier and enjoy your favourite music in original studio master quality.

305,10 €
10

ETON

ETON PA 4 - Ultra Compact 4 Channel Amplifier, Powerful Digital Micro Power Amplifier for Cars and Motorhomes, Class D Amp with 2 x 45 + 2 x 80 Watts

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Ultra-compact, flexible use, strong - the new PA power amplifiers are the successors of the award-winning ETON Micro power amplifier series. The 4-channel model PA 4 is a complete new development and focuses on optimal performance with the smallest size for the best possible installation. Small, smaller, PA - minimum 128 x 100 x 45 mm, the 4-channel can be flexibly integrated into any vehicle.
The PA 4 offers the finest electronics in an attractive, one-piece die-cast aluminium housing with a matte, anodised gunmetal finish. The top plate with the ETON logo is removable. Under the top plate there are numerous adjustment options: 12 dB/Oct. High- and low-pass filter, control of high-level input voltage and high-level input resistance (EPS load) as well as gain.
The PA 4 is engineered in Germany and impresses with numerous design finishes such as the integrated adjustment tool in the heat sink for filter functions and gain. Removable connectors for power and audio signal and variable mounting feet complete the equipment. The PA amplifiers are stackable.
Technical data: output power: CH1/2: 2 x 45 watts · CH3/4: 2 x 80 watts @ 4 ohms, CH1/2: – · CH3/4: 2 x 140 watts @ 2 ohms, CH1/2: – · CH3/4: 1 x 280 watts @ 4 ohms signal bridge,signal rrReplacement distance: 78 dB, attenuation factor @ 4 ohms: >65, dimensions (L x W x H): 128 x 100 x 45 mm. Box contents: PA 4, power plug, 3 speaker plugs, 3 high-level cables, 4 mounting feet, mounting screws · also available as 1 (PA 1, B0DB246FTD) or 2-channel (PA). 2, B0DB232P4N) model.
Multi-layer boards, high-quality electronic components and first-class workmanship form the basis for the advanced Class D amplifier technology used, which has a high efficiency and ensures peak sound at all levels - fine resolution, distortion-free, with sensationally low clutter and full control.

188,10 €