Adastra A8300 4-Zone (8 x 300W) Bluetooth Mixer Amplifier, 4Ω Class-D, USB/FM/Optical
DETAILS
The Adastra A8300 is a high-powered 4-zone mixer amplifier delivering 8 x 300W, with flexible speaker configurations and integrated media playback.
The Adastra A8300 is a powerful 4-zone Class-D mixer amplifier designed for commercial multi-room audio systems where both high output and speaker flexibility are essential.
Each of the four output zones provides two independent 300W channels at 4Ω, offering a total of eight speaker outputs. This unique setup allows you to run up to four 8-ohm speakers per zone (two per channel) or even eight 16-ohm speakers per zone (four per channel), making it an excellent solution for large distributed installations.
Designed for retail, hospitality, public buildings, and leisure venues, the A8300 gives complete control over your audio environment. Each zone can operate in stereo or summed mono, with selectable sources including three stereo RCA line inputs, an optical S/PDIF input, a built-in FM tuner, USB/microSD media player, or Bluetooth streaming. Individual zone EQ controls for bass and treble, plus channel volume, allow tailored sound for each area.
Two microphone inputs with override capability support announcements or paging, and the 24V emergency mute terminal allows integration with fire alarm systems. Front-panel control makes it easy to manage settings, while the compact 2U rackmount form ensures tidy and reliable installation.
Whether for clear background music, powerful foreground playback, or multi-source zoning, the Adastra A8300 offers the versatility and performance required in modern commercial audio.
Adastra A8300 Key Features:
- 8 x 300W Class-D Amplification: Delivers high-output power across four zones with two channels per zone
- Flexible Speaker Setup: Supports up to 4 x 8Ω or 8 x 16Ω speakers per zone for large-area coverage
- Integrated Media Player: Plays MP3 files via USB or microSD with onboard FM radio and Bluetooth streaming
- Multiple Input Options: Includes three stereo RCA line inputs and an optical S/PDIF input for AV integration
- Per-Zone EQ & Volume: Bass, treble, and volume controls for each zone for tailored sound
- Stereo or Mono Configuration: Each zone can operate in stereo or be summed to dual mono
- Mic Inputs with Override: Two microphone inputs with voice priority for announcements or paging
- Emergency System Integration: 24V emergency mute
SPECS & DOWNLOADS
Adastra A8300 Specifications
- Output Power: 8 x 300W @ 4 Ohms
- Amplifier Type: Class-D
- Zones: 4 independent zones (2 channels per zone)
- Speaker Configuration: Supports 2 x 8Ω or 4 x 16Ω speakers per channel
- Power Supply: 230Vac, 50Hz (IEC)
- Frequency Response: 20Hz – 20kHz ±0.5dB
- Microphone Inputs: 2 x 6.3mm jack (front or rear)
- Line Inputs: 2 x stereo RCA (L+R), 3.5mm stereo jack (aux)
- Digital Audio Input: TOSLink optical (S/PDIF)
- Media Sources: USB, microSD, Bluetooth, FM tuner
- Bluetooth Version: 2.3
- Input Sensitivity (Line): 0.775Vrms
- Input Sensitivity (Aux): 0.480Vrms
- Input Impedance: 10k Ohms
- Dynamic Range: 92dB
- Total Harmonic Distortion (THD+N): <0.1%
- Emergency Control: 24V EMG mute terminals
- EQ per Zone: Bass, treble, and master volume controls
- Antenna Connection: F-type (FM tuner)
- Output Controls: Mode, Stereo/Mono, Treble, Bass, Channel Volumes
- Input Controls: Aux, Media, Line1, Line2, Mic1, Mic2, Talkover
- Protection Features: Thermal, over-current, over-voltage, short-circuit
- Dimensions: 482 x 300 x 88mm
- Weight: 11.556kg
