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Grace Design m801mk2 Eight-Channel Microphone Preamplifier

  • Dale #:

    GRAC-M801MK2
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Description

Today’s modern recording studio is invariably loaded with incredible sonic processing capability, making the opportunity to add great sounding color routine. But capturing the magic at the front end is still the job of skillfully designed analog hardware, for which there is no substitute. This ma... Read More

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Description

Today’s modern recording studio is invariably loaded with incredible sonic processing capability, making the opportunity to add great sounding color routine. But capturing the magic at the front end is still the job of skillfully designed analog hardware, for which there is no substitute. This makes Grace Design preamps more relevant than ever. If your source sounds great and your mic is plugged into the m801mk2, you’ll be rewarded with a recording of breathtaking depth and realism. If you choose to color it up from there, you’ll be starting with the best possible raw material you can get.

In 1994, Grace Design released the Model 801 microphone preamplifier, which was the first production model for the company. It set a new standard of sonic quality and reliability for microphone preamplifiers, providing much better performance than the built-in circuits in the recording consoles of the day. It featured independent circuit boards for each channel, gold contact rotary gain controls wired with precision metal film resistors, a musical sounding transimpedance (current feedback) gain stage, gold contact sealed relay signal switching, and there were NO electrolytic capacitors in the signal path.

12 years later, they released the next generation of this preamplifier, renamed the m801, which refined the design features of the previous version, and added a fully differential signal path and Ribbon Mic mode, which optimized the signal path for low output ribbon microphones.

Now 20 years later, the next generation is here, now named the m801mk2. Newly designed amplifier circuitry adds to the features of the previous versions while 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 for a cleaner, simpler design.

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Product Specs

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 Height 2U
Width 19”
Depth 10”
WEIGHT 13lbs (5.9kg)
POWER CONSUMPTION 100-240VAC 50/60Hz 40 Watts max

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