
2 x 350W performance power amplifier
High-Power
The Optimal Audio Amp 100 is a high-performance 2-channel power amplifier, delivering up to 350W per channel for reliable, high-quality sound in commercial audio installations. Designed with a robust Class A/B architecture, it offers flexible configuration options including stereo, bridge, and parallel modes, along with versatile connectivity via XLR and jack inputs. Ideal for powering Optimal Audio loudspeakers, the Amp 100 integrates seamlessly with Zone controllers to provide enhanced performance, easy setup, and consistent audio clarity across a wide range of venues


Amp 100 is a performance power amplifier specifically designed to power Cuboid and Sub loudspeakers in the Optimal Audio eco-system.
Featuring a compact and rugged 2U design, the front panel follows Optimal Audio’s intuitive approach, whilst providing front panel status monitoring for each amplifier channel via indicator LEDs.
The Amp 100 has flexible input connectors featuring two balanced XLR / 1/4” Jack ‘Combi’ line input connectors and features speakON® or binding post for outputs. Amp 100 can be easily configured for a variety of install applications and can be run in Stereo, Bridge or Parallel mode, selectable by a switch on the rear panel of the unit.
When combined with a Zone processor, Amp 100 reaches its full potential by providing a full suite of Optimal Audio loudspeaker presets, limiters, and much more, easily configurable via Zone's onboard WebApp.
Data sheets, manuals and resources for the Amp 100

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Amp 100 is a performance power amplifier specifically designed to power Cuboid and Sub loudspeakers in the Optimal Audio eco-system.
Featuring a compact and rugged 2U design, the front panel follows Optimal Audio’s intuitive approach, whilst providing front panel status monitoring for each amplifier channel via indicator LEDs.
The Amp 100 has flexible input connectors featuring two balanced XLR / 1/4” Jack ‘Combi’ line input connectors and features speakON® or binding post for outputs. Amp 100 can be easily configured for a variety of install applications and can be run in Stereo, Bridge or Parallel mode, selectable by a switch on the rear panel of the unit.
When combined with a Zone processor, Amp 100 reaches its full potential by providing a full suite of Optimal Audio loudspeaker presets, limiters, and much more, easily configurable via Zone's onboard WebApp.
| TYPE | CLASS AB power amplifier |
| POWER OUTPUT (4Ω-16Ω) | 4Ω: 350W / 8Ω: 250W / 8Ω Bridged: 700W |
| COOLING | Force air cooling with fan |
| ANALOGUE IN/LINK | Jack/XLR combo inputs |
| ANALOGUE INPUT IMPEDANCE | 7.5kOhms unbalanced, 15kOhms balanced |
| MAXIMUM ANALOGUE INPUT LEVEL | +20dBu |
| AMPLIFIER OUTPUTS | Speakon / 4mm binding posts |
| SIGNAL TO NOISE RATIO | 102dB |
| FREQUENCY RESPONSE | 20-20k, +0, -0.5dB |
| TOTAL HARMONIC DISTORTION | <0.03% @ 1W |
| SLEW RATE | 9.31V/us, 8 ohm load |
| DAMPING FACTOR | >400, 8ohm load |
| MAINS POWER INPUT | 120V, 230V variants |
| MAINS CONNECTOR | IEC |
| DIMENSIONS | (W) 482mm x (H) 88mm x (D) 426mm (W) 18.97” x (H) 3.45” x (D) 16.77” |
| WEIGHT | 14.76kg (32.54lbs) |
| ACCESSORIES | Rear rack support |
About Penguin Media Solutions
Penguin Media Solutions is a professional audio, video, and lighting design, installation, and maintenance company based in Brighton, UK. As an authorised Martin Audio dealer, we provide high-performance AV systems for commercial venues, hospitality, and event spaces across Brighton, London, and South-East England.
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