400W Stereo Amplifier

Music is the source of joy for wise people.

Xun Tzu

MTRS Stereo Amplifiers

EMM Labs is proud to present its latest innovation in audio technology: the MTRS Stereo Amplifier. The MTRS is a 400W Stereo Class A/B solid-state amplifier. The MTRS is able to drive the most severe loads with no overall feedback, using Ed's completely re-designed high current Meitner Power Driver. The MTRS can handle any speaker load with ease, delivering high power, low distortion and wide bandwidth.

The MTRS also incorporates::
  • Proprietary power system
  • Fully discrete circuits
  • Fully balanced audio paths throughout
  • Custom ceramic PCB boards
  • Real time protection to avoid speaker and amplifier damage

The MTRS has been meticulously designed, from its short and fully balanced audio paths throughout, to its proprietary power systems and beautifully finished chassis. The MTRS is completely stable driving difficult, complex loads, and has the uncanny ability to drive low impedance speakers down to an Ohm! All while keeping distortion at miniscule levels. The MTRS is the ultimate amplifier for those who demand the best in audio reproduction in a stereo package.

Specification----Key Features

MTRS White Pages
Key Features

  • Voltage Gain: 30dB
  • Frequency Response: 0.1hz - 200Khz (Full Rated Power)
  • Signal to Noise: Greater than 120dB (A Weighted)
  • THD+N : Less than 0.01% (20-20Khz, Full Rated Power)
  • IMD: Less than 0.01% (20-20Khz, Full Rated Power)
  • Slew Rate: Greater than 100V/μS
  • Damping Factor: Greater than 200

Power Supply

Power: 400W Peak Power per Channel into 4Ω, 330W RMS Continuous Power per Channel into 4Ω

Personal Audio Design

With its redesigned analog and digital systems, integrated high resolution volume control, discrete componentry, and user-friendly operation, the MTRS can be connected directly to the amplification stage in any high fidelity system with ease.



Left and Right Balanced (XLR)

Left and Right Un-balanced (RCA)

Input impedance:

100KΩ Balanced (XLR)

47KΩ Un-balanced (RCA)


Left and Right Sets of Furutech Binding Posts


RS-232 Communication Port

Power & Accessories:

30A 250V 3-pin, IP44, IEC60309 type power inlet

Custom Kimber Kable 30A Power Cable

Custom EMM Labs Flight Case

Amplifier Dimensions (W x D x H):

544 x 584 x 297 mm, 21.4 x 23 x 11.7 inches

Amplifier Weight:

82kg, 180lbs


Silver and Black Ultrafine CNC Precision Finish

Materials PDF / Downloads

Click on the links below to download documents:

Have any questions? Write to us