Grace Design m501 500 SERIES MODULE MICROPHONE PREAMPLIFIER
Presenting the m501, our 500 series module version of the venerable m101 mic preamplifier. Now the signature transparency and detail of our circuit designs is available for your 500 series collection.While the 500 series market has plenty of colored mic preamplifier options, the natural, musical clarity of the m501 makes it a welcome addition to the field. This circuit is for engineers confident with the quality of the source, mic section and placement, and wish to capture it with as little coloration or distortion as possible.
The m501 module is a balanced, transformerles design, with 48V phantom, a 75Hz HPF and a 1/4” HI-Z instrument input. Also standard is our exclusive ribbon mic mode, which raises the mic input impedance, bypasses the input decoupling capacitors and deactivates 48V phantom to protect delicate ribbon mics from damage.Large diaphragm, vintage ribbon or trusty dynamic – the m501 brings out the very best in any microphone and takes the guesswork out of your input chain.Fast and musical transimpedance architecturePrecision audio path with 0.5% precision metal film resistorsNew 12 position gold plated rotary gain switchHigh performance output line driver amplifier and HPF amplifierNew Ribbon mic mode (also great for dynamic mics) – Relay bypass of phantom power decoupling capacitors, increased input impedance, and 48V lockoutWide 10-75dB gain rangeEnhanced RFI interference suppressionBombproof laser-etched black anodized frontpanelSealed gold contact relay for Hi-Z input switchingLed indicators for +48V, Ribbon mode, and HPF20 year EON year warranty on parts and laborBuilt in the USA
