Sonodyne SMA120D Mixer-Amplifier
120W Class-D mixer amplifier with mic/line inputs, built-in tone generation, paging priority and 100V / 4 Ω output options.
Product Overview
The Sonodyne SMA120D is a versatile mixer-amplifier tailored for installed sound and PA systems. With 120W output, it supports both 4 Ω and 100V line operation, features multiple microphone/line inputs, Bluetooth/USB support, priority muting for announcements, built-in tone generation (evacuation, alert, intruder) and phantom power for condenser mics. It is rack-mountable (1U) and designed for reliable performance in commercial, worship, educational or corporate installations.
Key Features
- Output power: 120W (Class-D) into 4 Ω or via 100V line outputs :contentReference[oaicite:0]{index=0}
- Four mic/line inputs + Bluetooth + USB / media interface :contentReference[oaicite:1]{index=1}
- 12V phantom power for condenser microphones (on inputs when switched) :contentReference[oaicite:2]{index=2}
- Priority muting (channels 1 & 2) for paging announcements; automatic mute and release timing ~5 sec :contentReference[oaicite:3]{index=3}
- Internal tone generator (Evac, Alert, Intruder) triggered by contact closure / switch :contentReference[oaicite:4]{index=4}
- Rack-mountable in 1U (1.73″) format :contentReference[oaicite:5]{index=5}
- Convection cooling (and fan if thermal threshold exceeded) :contentReference[oaicite:6]{index=6}
- Rear-panel controls: master level, tone level, input gain, tone selection, output mode, priority switches :contentReference[oaicite:7]{index=7}
- Mains input via IEC socket with internal fuse (2.0 A slow-blow) :contentReference[oaicite:8]{index=8}
Technical Specifications
| Model | SMA120D |
|---|---|
| Amplifier Class | Class-D |
| Output Power | 120 W into 4 Ω or via 100V line |
| Inputs | 4 × mic/line, USB, Bluetooth, media interface :contentReference[oaicite:9]{index=9} |
| Phantom Power | 12 V (switchable) :contentReference[oaicite:10]{index=10} |
| Priority / Paging | Channels 1 & 2 have priority muting, ~5s release time :contentReference[oaicite:11]{index=11} |
| Tone Generator | Evac / Alert / Intruder; contact-triggered :contentReference[oaicite:12]{index=12} |
| Frequency Response | — (typical) :contentReference[oaicite:13]{index=13} |
| THD & Noise | — (spec not published) |
| Cooling | Convection, fan assist over temp :contentReference[oaicite:14]{index=14} |
| Rack Size | 1U (1.73″) :contentReference[oaicite:15]{index=15} |
| Fuse / Mains | IEC inlet, 2.0 A slow-blow fuse for SMA120D :contentReference[oaicite:16]{index=16} |
