MI128

Digital Amplifier

The versatile MI128 8-Channel Digital Amplifier can be used in many applications ranging from distributed audio to home theater to stereo.

Delivers 120 W into 8 Ω speakers or 150 W into 4 Ω speakers via highly sophisticated closed loop digital switching amplifiers that are paired with extremely robust power supplies to produce performance levels that are rarely achieved in distributed audio.

Installer-friendly physical dimensions and is 2U rack mountable via the included mounting ears (the ears are removable for non-rack installations).

As a highly efficient Class D amplifier, it does not require noisy cooling fans to maintain nominal operating temperature.

Multi-color LED indicators display the status of each channel. Features unbalanced inputs plus 2-pole Phoenix style push-in speaker terminals for each channel.

Includes volume controls for volume balancing, along with 2 digital audio inputs (either coax or optical) that can be bussed, and channel summing circuits for easy mono signal distribution.

Other features included: Power Guard® signal overload technology that prevents overdriving the speakers; Sentry Monitor™ short-circuit protection that disengages the output stage before current exceeds safe operating levels; BUS input & outputs to easily distribute a stereo signal to multiple outputs and/or multiple amplifiers; individual channel inputs; 12 V triggering capabilities; and eco-friendly on/off signal sensing.

• Power Output: 120 W into 8 Ω speakers, 150 W into 4 Ω speakers
• Total Harmonic Distortion: 0.05% maximum from 20 Hz to 20 kHz
• Signal to Noise Ratio: 95 dB
• Dynamic Headroom: 8 Ω: 2.1 dB, 4 Ω: 3.3 dB
• Damping Factor: 8 Ω: > 65, 4 Ω: > 32
• Frequency Response: +0, -0.5 dB from 20 Hz to 20 kHz
• Inputs: 8x Unbalanced, 2x Digital (coax or optical), 2x BUS
• Dimensions (without mounting ears): 445 x 110 x 533 mm