Experience pristine audio clarity with the Grace Design m501, a standout single-channel preamp tailored for the 500 Series format. Born from the acclaimed m101 lineage, this module is a beacon of transparency and low distortion. Whether you're capturing the subtle nuances of a delicate ribbon microphone or the robust tones of a dynamic mic, the m501 ensures every detail is preserved with accuracy. Its balanced, transformerless architecture and wide gain range of up to +75dB make it a versatile choice for any recording engineer who values authenticity over coloration.

The m501 is equipped with a specialized Ribbon Mic Mode, which intelligently bypasses coupling capacitors and disables phantom power, protecting sensitive ribbon mics while enhancing their performance. The inclusion of a switchable high-pass filter and a 1/4" HI-Z instrument input further broadens its utility, making it a perfect companion for both microphones and instruments. With a robust build and intuitive controls, the m501 seamlessly integrates into any 500 Series rack, ready to elevate your audio projects with unmatched precision and depth.

Key Features:

• Single-channel 500 Series preamp based on the m101
• Transformerless design for natural, uncolored sound
• Wide gain range from +10dB to +75dB
• Ribbon Mic Mode to protect and enhance ribbon microphones
• Switchable 75Hz high-pass filter
• 1/4" HI-Z instrument input
• 12-position rotary gain switch
• Sealed gold contact relay for reliable Hi-Z input switching
• LED indicators for +48V, Ribbon Mode, and high-pass filter
• Made in the USA