Stewart Audio AV30MX-2 – 2-Channel Stereo Mixer Amplifier
The Stewart Audio AV30MX-2 is a compact, lightweight Class D stereo mixer amplifier designed for commercial, industrial, professional audio, and distributed sound installations. Its ultra-compact chassis allows it to be installed in locations where conventional amplifiers may not fit.
Key Features
- 2-channel stereo amplifier
- 30W per channel at 4Ω and 8Ω
- Class D, high-efficiency amplification
- 30 Hz–20 kHz frequency response
- >100 dB signal-to-noise ratio
- <0.1% THD+N at full power
- Signal Sense Power Technology™ for automatic sleep/wake operation
- External contact-closure mute input for fire alarm or emergency systems
- Fanless convection cooling for quiet operation
- Compact aluminum chassis
- External 48V DC power supply included
- UL 2043 plenum rated
- Independent level controls for both channels
- Power, signal-present, and clip LED indicators
- Multiple mounting options
Technical Specifications
| Specification | Details |
|---|---|
| Model | AV30MX-2 |
| Product Type | 2-Channel Stereo Mixer Amplifier |
| Amplifier Class | Class D |
| Stereo Power @ 4Ω | 30W |
| Stereo Power @ 8Ω | 30W |
| Frequency Response | 30 Hz–20 kHz (+0/-3 dB, 1W) |
| Power Bandwidth | 30 Hz–30 kHz (+3/-3 dB) |
| THD+N | <0.1% @ Full Power |
| Signal-to-Noise Ratio | >100 dB |
| Input Sensitivity | 0.5V (-6 dBV) |
| Voltage Gain | 28X (26.5 dB) |
| Input Impedance | 10 kΩ, unbalanced |
| Inputs | 3.5mm Stereo, Dual RCA |
| Outputs | Euroblock |
| External Mute | Contact Closure |
| Slew Rate | 30 V/µs |
| Cooling | Convection Cooling, Fanless |
| Power Supply | External 48V DC, included |
| Controls | 2 Independent Level Controls |
| Indicators | Power, Signal Present, Clip |
| Chassis | Aluminum |
| Dimensions | 1.25 × 4.35 × 3.2 inches |
| Weight | <0.37 lb (0.16 kg) |
| Plenum Rating | UL 2043 Approved |
Key Benefits
Compact Installation: Its very small footprint makes it suitable for installation behind displays, under tables, in AV racks, and other space-constrained locations.
Quiet Operation: Fanless convection cooling eliminates fan noise, making the AV30MX-2 suitable for conference rooms, classrooms, offices, and other noise-sensitive environments.
Energy Efficient: Stewart’s Signal Sense Power Technology™ (SSPT™) automatically powers the amplifier when an audio signal is detected, helping reduce energy consumption and extend amplifier life.
Emergency Muting: The external contact-closure mute input can be integrated with fire alarm or emergency systems to quickly mute program audio when required.
Professional Audio Performance: With a >100 dB signal-to-noise ratio, low distortion, and a wide frequency response, the amplifier is designed to deliver clean and accurate full-range audio.
Ideal Applications: Conference rooms, classrooms, retail spaces, background music systems, digital signage, commercial AV installations, professional audio systems, and distributed speaker systems.
