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Mercury Grand Pre D

Next generation of Mercury preamp and new Mercury sound
MFR# Grand Pre D
Mercury Grand Pre D
No interest if paid in full within 12 months Learn more
Ships directly from Mercury
This item ships directly to you from the manufacturer. To ensure that the manufacturer currently has stock, please chat, call or email for the latest availability status.

The Mercury Grand Pre D is the latest D Series/500 Module mic preamp to install in your Mercury G810 Rack System or any 500 Rack.


  • Gain control: variable gain control 0-70 dB
  • Level control: controls gain from input stage to output stage - can be used as a ‘Fader’ and allows you the ability to add ‘Tone’ and ‘Musical Break Up’ of Audio Signal by turning up the Gain and turning down the level control
  • Unity of level control is at 3 O’Clock, giving another 12 dB of output gain from 3 o’clock to 5 o’clock
  • Mic/Line Switch switches input between mic level input and line level input
  • Pad switch: pushbutton switch w/ LED, -12 dB Pad is ‘On’ when switch is engaged and LED is illuminated and ‘O’ or 0 dB if not illuminated
  • 48 V (Phantom) pushbutton switch w/ LED: 48 V for microphone phantom power ‘On’ when switch is engaged and LED is illuminated and ‘O’ if not illuminated
  • Polarity switch pushbutton switch w/ LED: ‘In Phase’ (pin 2 hot) when LED is not illuminated, ‘Out of Phase’ (Pin 3 Hot) when LED is illuminated
  • 1/4” jack for guitar and bass using the Mercury FDI Circuit to run through full circuit of the Grand Pre D
  • Transformer balanced inputs and outputs

The Mercury Grand Pre D is the Same Preamplifier as the new Studio Soul Grand Pre 8 - 8 Channel version. Proudly Made in the USA.


Additional Information

Condition New
Chassis Module
Module Type 500 Series
Module Slot Count 1 Slot
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