The pre-amplifier is often the unsung hero of the music lover’s audio system. Its job is to provide attenuation while remaining as transparent as possible. The existence of noise, distortion, coloration or other aural ugliness prevents your investment from meeting its full potential.

Knowing the importance of a good pre-amp, we designed our mPRE. We began by building the mPRE around fully balanced circuits that actively reject noise and lower distortion though the entire signal chain, from input to output. Then we added an analog volume control and completely separate power supplies for the right and left channels to further remove noise, produce holographic imaging and bring out the finest details in your music. Also included is a solid performing headphone stage that offers remarkably dynamic and authoritative sound quality.

If that’s not enough, this state-of-the-art pre-amp has a built-in DAC that boasts much of the technology found in our stand-alone digital-to-analog convertors, making the mPRE a truly outstanding product at a very compelling price.

$1,099.00

Options:

Color: Black or silver

 

 

mPRE Features

  • Fully balanced, Dual mono design
  • Next generation input and output buffers
  • Built-in ESS DAC which supports 24 bit 192 kHz on all digital inputs
  • Galvanically isolated, asynchronous USB input which supports Windows machines, is driverless for Mac, and supports Linux
  • Headphone amplifier
  • Remote Control
  • 12V DC trigger input and output
  • Efficient (no heat)
  • Fully balanced input to output
  • Discrete input and output buffers
  • Unbalanced to balanced conversion (when RCA input selected and XLR outputs are being used)
  • Robust construction
  • Machined and anodized aluminum front panel, top, and sides
  • 100kΩ input impedance
  • 1 set of balanced (XLR) inputs
  • 1 set of balanced (XLR) outputs
  • 2 sets of unbalanced (RCA) inputs (one is selectable as HT bypass)
  • 2 sets of unbalanced (RCA) outputs (one is selectable as a fixed 2.0V output)
  • Home Theater Bypass
  • External selectable voltage mains 115/230VAC
  • High grade Schottky Bridges
  • Compact size (8″W x 3.5″H x 8″D)
  • 8 lbs.
  • Covered by a 5 YEAR WARRANTY

 

W4S mPRE Specs

XLR In/Out

  • Typical THD+N 20Hz-20kHz (A Wt) @ 2V: <0.002%​
  • Noise 20Hz-20kHz (A Wt): < 12µV
  • Frequency Response 20Hz-20kHz: ± 0.020db
  • Channel Tracking: < ± 0.020db
  • Crosstalk: > 95db
  • Input Impedance: 100kΩ
  • Output Impedance: 100Ω
  • S/N Ratio: > 103db
  • Gain: 11.4db

 

RCA In/Out

  • Typical THD+N 20Hz-20kHz (A Wt) @ 2V: <0.007%​
  • Noise 20Hz-20kHz (A Wt): < 8µV
  • Frequency Response 20Hz-20kHz: ± 0.002 db
  • Channel Tracking: < ± 0.020 db
  • Crosstalk: > 118 db
  • Input Impedance: 100kΩ
  • Output Impedance: 100Ω
  • S/N Ratio: > 105 db
  • Gain: 5.3 db

 

Digital In/XLR Out

  • Typical THD+N 20Hz-20kHz (A Wt) @ 2V: <0.006%​
  • Noise 20Hz-20kHz (A Wt): < 12µV
  • Frequency Response 20Hz-20kHz: ± 0.002 db
  • Channel Tracking: < ± 0.020 db
  • Crosstalk: > 118 db
  • Input Impedance: 75Ω (Coax)
  • Output Impedance: 100Ω
  • S/N Ratio: > 105 db
  • Gain: 17.2 db (Vrms/FS)

 

Headphone Output

  • 32Ω Load: 1.3W @ 0.1% THD+N
  • 300Ω Load: 255mW @ 0.1% THD+N

•600Ω Load: 128mW @ 0.1% THD+N

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