MicroMega M-150

Integrated digital processing stereo amplifier with built in room correction (including required microphone). Original cost $7,499.

Within its 56mm (2.2-inch) tall machined-aluminum chassis, the M-One packs a Class 2 USB audio input for PCM, DSD, DSD over PCM; a coaxial digital input supporting up to 768KHz/32-bit PCM, an optical digital input supporting up to 192/24, an AES/EBU XLR input, a Bluetooth aptX receiver, and two I2S connections, which are designed for future expansion. There's also trigger in and outs, an Ethernet port for network audio, as well as a high-impedance unbalanced line-level input, a high-impedance balanced line input, a subwoofer out, and a switchable MM/MC phono input.

If that weren't enough, the M-One also boasts a pair of beefy Class AB amps, each fed by its own power supply. The M-150 ($7,499) reviewed here offers 150 watts RMS per channel into 8 ohms and 300 into 4 ohms. Other advantages of the M-150 include a built-in license for M.A.R.S., Micromega's room correction system, as well as optional binaural processing on its 3.5mm front-panel headphone output.

Latest firmware update which now includes Tidal built in.

Specs

Power output: 150 watts per channel at 8 ohms (300W at 4 ohms), both channels driven Dimensions: (WxHxD, Inches): 17.2 x 2.25 x 14 Weight: (Pounds): 20.5

Audio inputs: 1 coax, 1 optical, 1 AES-EBU, USB-B async, I2S digital (2); analog line unbal (RCA), analog line bal (XLR), analog phono (MM/MC)

Additional: RJ-45 Ethernet, USB-A (for FW update only)

Audio outputs: stereo speaker level (dual-multiway), line-stereo bal (XLR), subwoofer (fixed 400 Hz low-pass), headphone (1/8th- in. stereo front panel)

Wireless: Bluetooth aptX

Streaming: Internet radio, DLNA-server via iOS/Android app

Hra capable: up to 32/384 including native-DSD-on-PCM 2.8/5.6 mHz