Grace Design M801 MK2

High fidelity 8 channel mic preamplifier


Nearly 25 years ago, we introduced the m801 8-channel mic preamp. It was an instant success and was
heralded for it’s superb audio performance, build quality, industrial design and reliability. Today, we’re
thrilled to introduce the next generation product: the m801mk2.
Like it’s predecessors, the m801mk2 is an analog-only, 8-channel mic amp: built for those who demand
the very best in audio performance and reliability. The new amplifier circuitry adds again to the host of
top of the line features of the m801 by significantly improving noise performance at low gains,
increasing low frequency bandwidth for improved phase response, improving RFI/EMI immunity for
today's ever noisier world, and eliminating the external DC power supply
Transformerless, transparent microphone preamplification for all critical recording applications
Introduced in 1995, the model 801 microphone preamplifier was slightly ahead of its time. But as digital
audio workstations soon flooded the industry, an accompanying high performance 8 channel mic
preamplifier suddenly made perfect sense. So the model 801 quickly became an industry standard,
which remains inimitable and unsurpassed.
Many years later, with a nearly flawless service record and an endless supply of critical acclaim, the
model 801 gets a much deserved update, including an updated audio path, a new chassis forged of
stainless steel and a slightly new name: the m801.
First and foremost, the new m801 delivers unmatched audio performance – with massive headroom and
ultra-wide bandwidth which contribute to a markedly open, musical character. The m801 is designed to
effortlessly resolve even the lowest level ambient information, resulting in a sonic picture of astonishing
clarity and detail, which serves to capture the essential character of the music being recorded.
The m801’s signal path has been hot-rodded to be fully balanced from start to finish, resulting in wider
dynamic range, while new higher current output drivers enable even longer cable runs without signal
Now included on each channel is a dedicated ribbon microphone switch, which shifts the preamplifier’s
entire gain range up 10dB, while deactivating 48V phantom power, optimizing input impedance and
bypassing the decoupling capacitors. And, we’ve added an additional set of 8 channel balanced outputs
for sending signals to a secondary recorder, workstation or console.
Each channel offers 48V phantom, phase reverse and a 20dB pad. Gain controls are our finest 24
position gold contact rotary switches, wired with 1% metal film resistors for maximum audio

performance and perfect resetability. All components, active and passive, are selected for pure audio
performance and long term reliability. No corners are cut and no compromises are made.
While its predecessor now takes its place in pro audio history, the new m801 faithfully furthers the
tradition of breathtaking audio performance and perfect reliability in a beautiful, functional 8 channel

fully balanced, transformerless design
all new, higher-current outputs drive even longer cable runs
ribbon mic mode switch on each channel
fast, musical transimpedance amplifier architecture
precision 24 position gold contact rotary switch gain controls
48V phantom power, 20 dB pad and phase reverse
no electrolytic capacitors in the signal path
sealed gold contact relays for all signal switching
all electrical and mechanical design elements maximized for absolute purist, audiophile
large two color LED peak indicator
regulated linear power supply with custom wound toroidal transformer
highest quality metal film resistors used throughout
20 year EON transferable warranty on parts and labor


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