GRACE DESIGN / m801mk2

The m801mk2 is GRACE design's highest-end 8-channel microphone preamplifier. With its meticulous circuit design and carefully selected parts, it delivers extremely high performance not only in terms of sound but also in terms of noise.

■8-channel ""high fidelity"" microphone preamp

The m801mk2 is the culmination of GRACE design's ""mic preamps that capture all of the performance"" that it has been refining for over 25 years.
While inheriting all of the highly acclaimed designs such as the beautiful board design that is completely independent for each of the 8 channels, the elaborate metal film resistors, gold contacts, and the elimination of electrolytic capacitors, the circuit design has been refined to pursue even greater heights. Many advances have been made, such as improved noise performance at low gain, improved low-frequency phase response, thorough measures against electromagnetic noise such as RFI/EMI and Wi-Fi, and clean power supply for DC power supplies.

As a result, the frequency response has achieved the ultimate flat and wide response of 3.2Hz-530kHz (± 3dB)*. You can capture all of the performance there and record a sound with breathtaking depth and power.

GRACE design's first 8-channel microphone preamp, the ""MODEL801,"" was released in 1994. The MODEL 801, which is based on a thorough design philosophy that places the utmost importance on musical sound and does not compromise on anything, such as a completely independent board design for each channel, precise metal film resistors, gold contacts, and the elimination of electrolytic capacitors, is still in use in studios around the world as the most expressive microphone preamplifier even now, more than 25 years later.

12 years later, in order to respond to the ever-evolving improvement of digital sound quality, the ""m801"" was released, equipped with an even expanded frequency response, excellent signal path, ribbon microphone mode, etc. And now, the ultimate microphone preamplifier ""m801 mk2"" has been released, with an eye on the completely next-generation.

■Specifications
Preliminary Specifications / October 2018 (subject to change)

○FREQUENCY RESPONSE
@ 20dB gain ± 3dB 150Ω source 3.2Hz-530kHz
@ 20dB gain ± 0.2dB 150Ω source 14.8Hz-109kHz
@ 40dB gain ± 3dB 150Ω source 3.2Hz-500kHz
@ 40dB gain ± 0.2dB 150Ω source 15.4Hz-103kHz

○THD+N 22-22kHz
@ 20dB gain +20dBu out, 1kHz <.0004%
@ 40dB gain +20dBu out, 1kHz <.0008%
@60dB gain +20dBu out, 1kHz <.0070%

○INTERMODULATION DISTORTION
@40dB gain +20dBu out
SMPTE/DIN 1:1 (50Hz, 7kHz) <.0015%
SMPTE/DIN 4:1 (50Hz, 7kHz) <.0020%

○NOISE - REFERRED TO INPUT
@60dB gain 50Ω source -130dB
@60dB gain 150Ω source -127dB
@60dB gain 600Ω source -123dB

○PHASE DEVIATION
100-20KHz @40dB gain <3°

○CROSSTALK
Any Channel @40dB gain 1kHz -140dB
Any Channel @40dB gain 10kHz -130dB

○CMRR
@60dB gain, 3.5Vcm, 1KHz >85dB
@60dB gain, 3.5Vcm, 10KHz >75dB

○PHANTOM POWER
Voltage +48V +0.9/ -0.0
6.8kΩ resistor match tolerance +/- 0.1%

○MAXIMUM OUTPUT LEVEL
1kHz, 100KΩ load +28dBu

○IMPEDANCE
Input 8100Ω
Input, Ribbon Mode 20KΩ
Input, Pad Engaged 1.3KΩ
Output 150Ω

○DIMENSIONS
Weight 13lbs (5.9kg)
Height 2U
Width 19"" (482.6mm)
Depth 10"" (254.0mm)

○POWER CONSUMPTION
100-240VAC 50/60Hz 40 Watts max