For audio engineers who demand precision and clarity, the Wolff Audio RefPre 500 Series Microphone/Instrument Preamp is a game-changer. Designed by industry legend Paul Wolff, this preamp is a reference-grade marvel that offers an uncompromised, transparent sound. Its minimalist, transformerless circuit ensures that your audio remains true to the source, making it perfect for capturing the subtle nuances of any microphone or instrument.

The RefPre is not just about clean sound; it's packed with features that streamline your workflow. Its intuitive interface boasts three easy-to-grip knobs, five illuminating buttons, and a versatile combo input that accommodates both mic and instrument signals. The stepped rotary switch allows for precise gain adjustments from -10dB to 60dB, ensuring repeatability and ease of use. Whether you're recording whisper-quiet vocals or thundering bass lines, the additional 10dB Ribbon mic circuit with auto impedance adjustment ensures you're covered.

With a high headroom of +28dBu output, this preamp can handle even the most demanding sources without distortion. Its front-panel access for inputs and comprehensive control features, such as polarity reverse and 48V phantom power, make it a flexible tool for any studio environment. Whether you're a seasoned professional or an aspiring engineer, the Wolff Audio RefPre is your ticket to capturing sound with unparalleled transparency and versatility.

Key Features:

• Reference-grade 500 Series mic/instrument preamp
• Transformerless design for ultra-transparent sound
• Stepped rotary switch for repeatable input gain adjustment from -10dB to 60dB
• Ribbon mic circuit provides an extra 10dB of gain with auto impedance adjustment
• +/-6dB Trim control for precise gain adjustment
• High headroom: +28dBu output
• Frequency response: 10Hz–80kHz (+/-0.5dB)
• Low noise and distortion: 125dBu EIN; 0.0005% distortion @ 60dB gain
• Front-panel mic/Instrument combo input with dedicated hi-Z input amp
• Polarity reverse, 48V phantom power, and 80Hz highpass filter switches
• Designed and built in Santa Barbara, CA

Product specs

FAQs

What type of preamp is the Wolff Audio RefPre 500 Series?

The Wolff Audio RefPre 500 Series is a solid-state preamp designed for both microphones and instruments.

Does the Wolff Audio RefPre 500 Series provide phantom power?

Yes, the Wolff Audio RefPre 500 Series includes phantom power, which is essential for powering condenser microphones.

What is the frequency response range of the Wolff Audio RefPre 500 Series?

The frequency response of the Wolff Audio RefPre 500 Series is 10Hz to 80kHz, offering a wide range suitable for capturing detailed audio.

Does the Wolff Audio RefPre 500 Series have a ribbon mode feature?

Yes, it features a ribbon mode that adds 10dB of gain, locks 48V phantom power off, and matches impedance, making it ideal for ribbon microphones.

What input options are available on the Wolff Audio RefPre 500 Series?

The Wolff Audio RefPre 500 Series has a single XLR Combo input, accommodating both microphone and instrument connections.