Grace Design m501
500-series single-channel mic preamplifier (500-series version of m101)
Preamp$779Manufacturer list price
Specifications
- Type
- Preamp
- Description
- 500-series single-channel mic preamplifier (500-series version of m101)
- Topology
- fast and musical transimpedance architecture; 0.5% precision metal film resistors
- Signal path
- Analog
- Channels
- 1
- Channel format
- mono
- Form factor
- 500-series module
- Frequency response
- 3.8Hz-288kHz (-3dB); 8.35Hz-135kHz (-0.5dB) @ 40dB gain
- Impedance (Ω)
- mic in 8.1k ohm (20k ohm ribbon mode); Hi-Z 2.5M ohm unbal / 5M ohm bal; out 300 ohm bal / 150 ohm unbal
- Country of manufacture
- USA
- Phantom power
- 48V
Details
Controls: 12-position gold-plated rotary gain switch, output trim control, 75Hz HPF, LED indicators (+48V, Ribbon, HPF)
I/O: XLR mic input, 1/4" Hi-Z instrument input; balanced XLR output
Notes: Price $779 per Sweetwater (July 2026). Requires standard 500-series (Rupert Neve Designs / API lunchbox format) rack; draws 120mA max from +/-16V rails (rail current only, not converted to watts to avoid guessing). Gain: mic 10-65dB (5dB steps), Hi-Z -10-45dB. Weight 0.7lbs, dims H5.25 x W1.5 x D6.6in. 20-year EON warranty.