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 enable connection to standard sound systems as well as various partially and fully active car audio systems.

The high practicality of the A894DSP is already evident in the input section: the input channels can be distributed, split or merged to the output channels with complete flexibility: For example, combine a high-frequency and a low-frequency input signal to form a full-range output signal or, if only two radio outputs are available, distribute the signal to all amplifier outputs. As a highlight, the music signal can even be linearized using the input equalizer if required.

Want to know exactly how it works? We explain the function in detail in our video.

The extensive BTL modes (bridge mode) offer a flexible choice of output channels, e.g. 8.0, 6.1, 4.2 or even 4.1 with up to 400 W RMS @ 2 Ohm for the subwoofer. The individualized signal is conveniently forwarded to a separate subwoofer or center power amplifier via the dual mono RCA output or the optical output. 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.

Controller app

The integrated digital sound processor enables extensive sound settings per channel, such as delay time correction, freely configurable frequency filters (6/12/18/24 dB in the three selectable Butterworth, Bessel and Linkwitz-Riley characteristics), gain control and a 31-band parametric equalizer. Setups (channel routing and a preset of the crossover frequencies) for each of the optional vehicle-specific Plug & Play connection cables are also integrated into the app.

The integrated Bluetooth audio streaming interface makes it easy to stream your own music collection to the amp. The A894DSP also offers the option of playing Hi-Res Audio music data with the separately available ABT50 streaming interface. Thanks to the optical inputs and outputs, several AXTON DSP amplifiers can be linked together without loss. A separately available remote control can be connected to the A894DSP.

RMS output power

• @ 4 Ω: 8 x 60 W
• @ 2 Ω: 8 x 75 W
• in BTL 4.2 mode CH 5+6 / CH7+8 @ 4 Ω: 2 x 230 W RMS
• in BTL 4.1 mode CH 5+6+CH7+8 @ 4 Ω: 1 x 230 W RMS
• in BTL 4.1 mode CH 5+6+CH7+8 @ 2 Ω: 1 x 400 W RMS

Playback range

• 20 Hz ~ 20 kHz

Inputs

• 6x High-Level with Auto-turn-On (DC-Offset)
• 6x RCA Cinch
• 1x optical input (Toslink)
• 1x coaxial (USB)
• 1x Bluetooth audio streaming

Outputs

• 8x High Power with DSP configuration
• 1x dual-mono RCA cinch with DSP configuration
• 1x optical output (Toslink) with DSP configuration

Connections

• 1x 24 pin main connection
• 1x 8 pin BTL connection
• 1x BATT/GND power terminal
• 1x port for remote control

Further amplifier data

• High-level sensitivity: 8.4 Vrms
• High-level impedance: 39 Ohm
• RCA max voltage: 5 Vrms
• Operating voltage: 7.5 V - 16.5 V
• Signal-to-noise ratio digital input: > 112 dB
• Signal-to-noise ratio analog input: > 106 dB
• THD: 1 KHz < 0.0133%
• Attenuation factor: >= 200
• No-load current consumption: 0.23 A
• Maximum current consumption: 30 A
• Max. Remote output current: 0.5 A

DSP

• DSP type: AKM7735 Dual DSP
• ADC: 2x 24-bit
• DAC: 2x 32-bit
• DSP MHz: 2x 150 MHz
• Audio sampling frequency: 192 kHz

Bluetooth

• Bluetooth class: 2
• Bluetooth power: 2.5 mW / 4 dBm
• Bluetooth range: 10 m
• Bluetooth Frequency: 2.4 - 2.48 GHz

Dimensions

• (L x W x H) 238 x 180 x 50 mm

Scope of delivery

• 1x A894DSP
• 1x 24 pin main connection cable
• 1x 8 pin connection cable for 8.0 mode
• 1x 8 pin connection cable for 6.1 mode
• 1x 8 pin connection cable for 4.2 mode
• 1x 8 pin connection cable for 4.1 mode
• 1x operating instructions