The MA4 delivers the same sonic performance and streaming capabilities as the MA6, but in a more compact form factor ideal for smaller systems, selective zone coverage, or expansion of larger installations. With four amplified zones and one preamp output, the MA4 combines reference-grade audio, powerful onboard streaming, and robust integration into a single chassis.
Whether used as the backbone of a smaller system or as a building block in a distributed audio network, the MA4 gives installers the performance of our flagship MA6 in a streamlined configuration.
Highlights:
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Stream everywhere – Native streaming services built in, plus AirPlay 2 in every zone.
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Power for Every Zone – Up to 180 W per channel, bridgeable to 350 W/ch for subs and high-power zones.
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System-wide flexibility – eAudioCast over Ethernet lets amplifiers across the property act as one cohesive matrix.
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Advanced DSP -- Effortless configuration of crossovers for subs. A fully customizable parametric EQ for the perfect sound in every room.
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Quiet confidence – Overbuilt heatsinks and a fanless design ensure high reliability in the most demanding environments
With the MA6 and MA4, you get the transparency of a hi-fi preamp, the headroom of a professional-grade power amp, and the simplicity of one integrated system. Purpose-built for both luxury residential and light-commercial projects.
MA4 Streaming Amplifier
MA4 merges the M5 Pro preamp/DAC section with Hypex amplifier modules and Mean Well power supplies, delivering effortless headroom, low noise, and proven reliability. Boasting 120 watts per channel into an 8-ohm load, 180 watts per channel into a 4-ohm load, and up to 350 watts bridged per zone, the MA6 has the power to drive higher-end architectural or floorstanding speakers, subs or mono high-power zones. Its IP controllability makes it the perfect choice in a controlled environment, and onboard ESS Sabre DACs ensure clean and pure sonic performance in every room.
The MA4 is an 5-zone, IP controllable amplifier (four amplified zones and one pre-amp output) with two built-in Autonomic streamers, independent AirPlay 2 in every zone, and extensive zone linking capabilities. Use it as a stand-alone, IP controllable streaming amplifier, or pair it with additional MA6s, MA4s, M-6250s, or Autonomic Music Servers to create a complete whole-home audio solution, the Mirage Audio System.
Whole-home Amplification with eAudioCast™
Configure a complete, decentralized whole-home audio system that resides solely on the network. Proprietary eAudioCast technology allows network streams to be transmitted, received, and distributed across zones on each Autonomic amplifier. Integrate Autonomic amplifiers seamlessly with Mirage Media Servers to create a harmonious and modern audio system featuring all of the most popular streaming music services and richest digital music files.
High-resolution Audio with ESS Sabre DACs
Our whole streaming amplifier line supports proprietary Autonomic eAudioCast technology, enabling high-resolution audio (HRA), up to 24-bit/192kHz, over Ethernet. The MA4 features premium ESS Sabre DACs on every output, which allow source material to stay in its purest format until the final amplification stage, providing reference-quality distribution of content all over the home. Built-in per-zone DSP, including PEQ, high-pass, low-pass, shelving and notch filters, loudness, and crossovers, gives installers precise control to fine-tune each environment.
Independent AirPlay 2 Streaming
Each of the MA4’s five zones supports its own independent AirPlay 2 stream, separate from the two discrete onboard streams. This allows every room to accept a direct AirPlay 2 connection from iOS or macOS devices without interrupting playback in other zones.
Scalable to 96 Zones
Large installations are no problem for Autonomic amplifiers, which can be bridged using any combination of MA6, MA4, and M-6250 amplifiers, up to 96 zones. Zone groups can be created to link multiple zones by tying the source selection together across the group. Zone linking can optionally coordinate volume and the power state of linked zones. The MA4 can route audio signals from any of its two discrete streams into any of its five zone outputs under manual control, or with IP based automation systems.
Flexible Control Options
Autonomic amplifiers are fully IP addressable. Commands and feedback for power, source selection, volume, and muting controls are available for every zone, making integration with control systems quick, easy and effective. Standalone control options include the TuneBridge App for iOS and Android devices, and the Autonomic web interface. For installers, the MA6 also includes eight 12V trigger outputs, opto-isolated inputs, and a gold-plated ground lug for clean system bonding.
Optional Internal Storage
The MA4 can be configured with up to 8TB of internal NVMe SSD storage, allowing users to store and access high-resolution music libraries locally. Only one amplifier or server in an Autonomic Audio System requires storage—content is automatically shared across the entire networked system via eAudioCast.
This flexible architecture eliminates the need for redundant storage on every device, reducing cost and simplifying system design while providing fast, reliable local playback of your media collection.
MA4 Product Specification Sheet
MA4 Product Manual
Autonomic Music Without LimitsControl Modules
Autonomic AMX Module
Autonomic Control4 Module
Autonomic Crestron Module
Autonomic RTI Module
Autonomic URC Module- Output Power (8 Ω):
- 120 Watts per Channel
- Output Power (4 Ω):
- 180 Watts per Channel
- Output Power (8 Ω Bridged):
- 350 Watts per Channel
- Power Ratings:
- All Channels Driven, Continuous Output
- Audio Outputs (5 Zones Total):
- (4) Stereo Amplified Zone Outputs (1) Pre-Amplified Output with Analog
- Audio Inputs (4 Total):
- (2) Analog RCA (2) Digital Coax
- Audio Output:
- Unbalanced, stereo RCA type, line level audio output
- COAX:
- Stereo Coaxial, RCA type, SPDIF (PCM)
- USB:
- USB 3.0 Type A
- LAN Connection:
- (1) 8-wire RJ45 with 2 LED indicators; 10/100/1000 Mbits/sec BaseT Ethernet port; green LED indicates link status; yellow LED indicates Ethernet activity
- eAudioCast:
- Provides audio-over-Ethernet technology when paired with other Autonomic devices
- THD+N:
- 0.02%, UL Rated 1/8th Power, 4 Ohm
- S/N Ratio (Line Input to Amplified Output):
- 100dB (IHA-A Rated, 0.75Vrms Input)
- Frequency Response:
- 20Hz - 20kHz
- Dynamic Range:
- 100dB
- Output Impedance (Speaker-Level):
- 20 mΩ below 1kHz, 150 mΩ @20kHz
- Output Impedance (Line-Level):
- 300 Ω
- Digital-to-Analog Conversion:
- ESS Sabre ES9033Q, 32 Bit 768kHz
- Analog-to-Digital Conversion:
- ESS Sabre ES9820Q, 32 Bit 768kHz
- Supported Sample Rates:
- 44.1/48/96/192 kHz at 16-bit or 24-bit resolution
- Trigger Outputs:
- (6) Trigger Outputs (12v 100mA)
- Trigger Inputs:
- (4) Trigger Opto-Isolated Inputs (5-24v AC/DC)
- Other I/O:
- Reset Button, Power Button
- Control System Protocols:
- IP, 2-way documented API
- Control Interfaces:
- Control4, Crestron, Crestron Home, Elan, Josh.ai, Lutron, RTI, URC, AMX, WebUI, Tune- bridge App for iOS and Android devices
- Power Connection:
- 110V-240V IEC 60320-1C13/C14 power cord (included)
- Main Power Consumption:
- 270W @ 1/8 Power, All Channels Driven, 4 ohms
- Standby Power:
- 6 Watts
- Power Cord (USA/Canada):
- IEC C13 to NEMA 5-15, 3 Wire, 14Ga, 6ft
- Temperature:
- 32°F to 104°F (0°C to 40°C)
- Humidity:
- 10% to 90% RH (non-condensing)
- Heat Dissipation:
- 376 BTU/hr (Max)
- Height:
- 3.46” (88mm) 2U
- Height (with feet):
- 3.88” (99mm)
- Width:
- 17.2” (437mm)
- Depth:
- 14.0” (254mm)
- Unit Weight:
- TBD
- Shipping Weight:
- TBD
- Mounting:
- Four (4) screw on feet included; two rack ears included
- Warranty:
- 2-year limited warranty
- Streaming Services:
- Apple Music*, Amazon Music, Audacy, Calm Radio, Deezer, iHeartRadio, LiveXOne Radio, Murfie, Napster, PANDORA® Internet Radio, Qobuz, SiriusXM Internet Radio, SoundMachine, Spotify, TIDAL, TuneIn
