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SKU

13172

Grace Design m501 500 Series Microphone Preamp

Transparent and detailed mic pre for 500 Series frames
MFR# m501

Product Description

Presenting the Grace Design m501, the 500 series module version of the venerable m101 mic preamplifier.  Now the signature transparency and detail of Grace Design's circuit designs is available for your 500 series frame.

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, transformerless 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.

Features:

  • Fast and musical trans-impedance architecture
  • Precision audio path with 0.5% precision metal film resistors
  • New 12 position gold plated rotary gain switch
  • High performance output line driver amplifier and HPF amplifier
  • New Ribbon mic mode (also great for dynamic mics) - Relay bypass of phantom power decoupling capacitors, increased input impedance, and 48V lockout
  • Wide 10-75dB gain range
  • Enhanced RFI interference suppression
  • Three output connectors: XLR balanced, TRS balanced and ¼” unbalanced
  • Bombproof laser-etched black anodized front panel
  • Sealed gold contact relay for Hi-Z input switching
  • Led indicators for +48V, Ribbon mode, and HPF
  • 20 year warranty on parts and labor!
  • Made in the USA

Product Specifications

Condition New
Tube or Solid State Solid State
Channels Single-Channel
Chassis Module
Module Type 500 Series
Module Slot Count 1 Slot
Direct Input Yes
Digital I/O No

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