4 Channel Microphone Preamp

Our mission is to create new and exciting devices for use in the recording studio. Our criteria for design is based only on usability, sound and reliability. We believe your ears are the most sensitive "test" gear on the planet.

NPNG started building Mic Pre-Amps in 1995. Virtually all of the original units are still in use today. The occasional service requests we get are all related to mechanical damage. The circuits are robust and reliable. Built with the finest components available, the QMP4 and DMP2 will yield many years of trouble free use.

NPNG QMP-4NW Architecture

2 Discrete 13 Transistor Class A Op Amp Stages Per Chan.

Discrete* 7 Transistor Front End

Min. Gain 30dB, Max Gain 74dB (to produce "0" VU)

Input Attenuation "PAD" Variable -4 to - 40dB Range

NPNG QMP-4NW Typical Performance:

EIN Better Than -127dB 20Hz-20kHz @ 40db Gain Unweighted

Odd Order Harmonic Distortion @ +40dB Gain / 400Hz:

+4dBu to + 23.8 dBu Below .001%

Residual Noise below -89dB 20Hz to 20kHz @ 30dB Gain Unweighted

Onset of clipping +24.4dBu

Input Impedance 5K Balanced

Output Impedance 600 Ohm Balanced

Transformerless Balanced Inputs

Balanced Outputs Using Jensen "Hi Nickel" Transformers

PPM Meter Ballistics

Phase Reverse on Front End

Sound: Extremely Deep, Wide and Dimensional .

Inter channel Crosstalk below 85 dB 20-20K