Wolff Audio RefPre 500 Series Preamp

The Wolff Audio RefPre 500 Series reference preamp stands out for what it won’t do. It won’t color your audio. Never Ever. The transparent design uses minimal circuitry and signal paths. If your go-to preamp 'must haves' include exceptional accuracy and extra headroom to deal with a variety of mic types, including those with high output and ribbon styles, then we have you covered. Wolff also added a switchable +10 dB gain boost and phantom power safety lockout for the ribbons. Try RefPre for your mic, line and instrument preamp requirements and we think it will quickly become your new favorite.

TOTALLY TRANSPARENT

Designed as an option for the Wolff Console, RefPre has 60 dB of gain, phantom power, switchable polarity and a source selector for the XLR/INST front panel input. The Ribbon mic selection increases the gain to 70 dB and adjusts the mic impedance. RefPre is ideal for sampling and emulation mics, such as the Slate VMS that rely on a fully transparent preamp. Mic parings with Earthworks TC25 for toms and kick and PM40 for piano delivers exceptional results as does a pairing with the Neumann TLM 103 to add a discernible presence.

FEATURES:

• Transformerless microphone preamp with a stepped rotary switch for repeatable gain adjustment from -10 dB to 60 dB in 10 dB steps
• Ribbon mic circuit provides an extra 10 dB of gain with auto impedance adjustment and phantom power lockout
• ±6 dB trim control for precise gain trim adjustment
• Output fader, continuous adjustment from inf to full output
• Frequency response ±0.5 dB from 10 Hz to 80 kHz
• Low noise and distortion -125 dBu EIN and 0.0005% distortion @60 dB of gain
• High headroom +28 dBu output
• Switchable 12 dB/octave 80 Hz high pass filter
• Signal indicator LED glows green on signal and flashes red at +18 dBu, 10db below clipping
• Front and back panel access for mic input
• Front panel instrument input with dedicated Hi-Z input amp accessed by the mic/inst switch
• Polarity reverse switch/48V phantom power (output mutes during switching)