All about the A894DSP DSP-Amplifer

The compact 8.1-channel SMART DSP amplifier A894DSP is the ideal upgrade for many ex-works sound systems.

All in to Win

Six high-level inputs and matching optional plug & play cables enable connection not only to standard sound systems, but also to a wide range of 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. As a highlight, the input equalizer can even be used to linearize the music signal if required.

Plug & Play connection to premium sound systems

Separate ATS-ISO8xxx cable harnesses are available for the A894DSP, which support up to six high-level inputs and enable connection to premium sound systems with an integrated amplifier. The connectors of these A894DSP P&P cables are custom-fit for maximum retrofit capability. Setups are already stored in the Axton app for each of these P&P cables. Find your vehicle and the right cable in the configurator on our homepage.

Plug & Play standard connection of the A894DSP

With the ATS-ISO8BASIC adapter, the A894DSP can be used with all AXTON Specific wiring harnesses. Our carefully crafted ATS-ISO connection cables fit perfectly with models from over 30 vehicle brands, such as Audi, BMW, Citroen, Dacia, Ford, Mercedes-Benz, Renault and Volkswagen. Find your vehicle and the right cable in the configurator on our homepage.

BTL power

The extensive BTL modes (bridge mode) offer a flexible choice of output channels, e.g. BTL8.0 with 8 x 60 W RMS @ 4 Ohm, BTL6.1 with 6 x 60 W + 1 x 230 W RMS @ 4 Ohm, BTL4.2 with 4 x 60 W + 2 x 230 W RMS @ 4 Ohm or even 4.1 with up to 4 x 75 W + 400 W RMS @ 2 Ohm for the subwoofer. With this high power, not only can the performance of the original factory speakers be improved, but there is also enough power to drive high-quality retrofit speakers.

If even more power or additional channels are required, the dual mono RCA output or the optical stereo output can be used to conveniently forward an individualized signal to a separate subwoofer or center amplifier.

Take Control

All functions of the integrated digital sound processor can be controlled via a single AXTON smartphone app, which is available free of charge for iOS and Android. The app enables extensive DSP sound settings per channel such as channel routing, delay time correction, freely configurable frequency filters (6/12/18/24 dB in the three selectable Butterworth, Bessel and Linkwitz-Riley characteristics), gain control as well as a 31-band parametric output equalizer and 9-band input EQ. A bass and a treble control are available for quick sound manipulation. Up to five favorites can be saved on the A894DSP and an infinite number of setups on the smartphone.

Presets

Predefined setups are already integrated in the app for each of the A894DSP-specific plug & play connection cables. These presets include the channel routing and a pre-setting of the crossover frequencies for the target vehicle and simplify the installation considerably. Of course, these settings can still be customized and adapted to your own hi-fi concept.

Bluetooth and more

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 ABT50 streaming interface, which is available separately. Thanks to the optical inputs and outputs, several AXTON DSP amplifiers can be linked together without signal quality loss. A separately available A592DSP-RC remote control can be connected to the A894DSP. 

Highlights

• 8.1-channel Smart Class-D amplifier with iOS or Android app-controlled
  audio DSP functions
• 6-channel high-level input for easy connection to OE sound systems
  with amplifiers
• Free channel assignment: distribute, split or merge music signals
• DSP-controlled Dual-mono preamp output (5 volts) including
  remote output for controlling additional amplifiers
• 6-channel RCA input
• Optical and coaxial input for the high-res audio streaming interface
  ABT50 or another AXTON SMART DSP amplifier
• Optical output for linking the signal to another AXTON SMART
  DSP amplifier
• Bluetooth audio streaming with automatic source switching
• Plug & play installation with optional vehicle-specific connection
  cables
• Ready-made presets already included in the free app
• Auto-turn-on function via high-level input

DSP Features

• Freely configurable active crossover: high/low/band/bypass with
  6/12/18/24 dB/oct. slope
• Selectable filter characteristics: Butterworth, Bessel or Linkwitz-Riley
• Time alignment for each channel (0 – 550 cm / 0 – 15.8 ms)
• Gain, phase switch and Mute function for each channel
• Freely configurable 31-band parametric equalizer for each channel
• Freely configurable 9-band parametric input equalizer for each
  source
• Storage spaces for your own settings: 5 on the amp, unlimited
  on the smartphone
• Dynamic Bass and Dynamic Treble function
• Noise Gate function to reduce car stereo background noise

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 manual

Specification

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