The LMA101 is a 100W single-channel, multi-impedance power amplifier designed to serve either as a standalone zone amplifier or as an expansion amplifier when paired with an AtlasIED DMA Series mixer amplifier. Its straightforward architecture and integrator-friendly controls make it well suited for small commercial spaces, auxiliary zones, or applications requiring dedicated amplification without added system complexity.
Supporting low-impedance loads down to 2 Ω as well as 25 V, 70.7 V, and 100 V distributed audio systems, the LMA101 offers flexibility across a wide range of installation scenarios. A high-efficiency, switch-mode global auto-sensing power supply ensures consistent output and reliability even in unstable power environments, while the output stage is engineered to deliver clean voltage and current simultaneously for dependable loudspeaker performance.
For streamlined installation and commissioning, the LMA101 includes balanced line inputs, summed RCA connections, rear-panel detented gain control, remote level control capability, and GPI ports for standby or priority override. The built-in Push Here Diagnostic (PHD) function verifies speaker wiring and load conditions with a single button press, helping integrators confirm system integrity before project handoff.
| Output Power | 100W @ 4Ω, 8Ω, 70.7V, 100V, 25V, 50W @ 2Ω |
|---|---|
| Frequency Response | 20 Hz-20 kHz (+0/-1.5 dB) in 2-, 4-, 8-Ohm, 25V Modes; 50 Hz-20 KHz (+0/-1.5 dB) in 70.7V, 100V Modes |
| Power Consumption | 0.4W Standby Mode, 11W Active Idle Mode, 114.8W Full Load - 70V |
| Voltage Compatibility | Universal |
| Amplifier Topology | Class D |
| Power | @ 4Ω, 8Ω, 70.7V, 100V: 100W @ 25V: 100W @ 2Ω: 50W |
| Input Type | 1 Balanced Line, 1 RCA (L & R are summed); Connectors are in parallel |
| Input Connector Type | 3.5 mm Euroblock, 3-Position RCA (summed to mono) |
| Input Impedance | 20 kΩ (Balanced), 10 kΩ (unbalanced) |
| Input Sensitivity | 775 mV Balanced, 316 mV RCA Adjustable |
| Mount | Rack Mount Hardware Included |
| Dimensions (H x W x D) | 1.7" (44.5 mm) x 8.5" (215.9 mm) x 11.23" (285 mm) |
| Weight | 4.85 lbs (2.2 kg) |
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
