PRE-505 Mic Preamp DIY full Kit version
The PRE-505 microphone preamp is inspired by the classic Harrison MR-4 console (1980), offering a perfect balance of transparency, clarity, and subtle tonal coloration. With a generous +70dB gain, it handles low-output mics and sensitive sources effortlessly while maintaining an ultra-low noise floor. Its transformerless design preserves the dynamics of your recording.
The preamp’s transistor-based input stage ensures tonal accuracy, delivering expressive character in the mids, while the smooth, musical top-end remains free from harshness. A built-in high-pass filter cleans up low frequencies at the recording stage, ensuring a cleaner signal from the start.
The PRE-505 combines vintage analog warmth with modern precision, providing a pristine, dynamic, and detailed sound perfect for any recording or live setup.
Input stage : transistor based (transformerless)
Impedance : 1200 Ω
Gain max: +70dB
Output stage : electronically balanced
Max Output Level : +23 dBu
-20dB pad switch
48V switchable phantom power + LED on
Sweepable high-pass filter (12 dB/oct) : 25 to 350 Hz
Signal LED with internal trimmable threshold