I’m selling my Bottlehead BeePree preamp which comes with BeeQuite stepped attenuator. I build this preamp almost 2 years ago. Just recently I purchased ShuGuang Treasure 300B-T tubes. Tubes are coming with it and they are 400USD if you want to purchase them new. They have may be 100 hours on them. BeePree is dual mono design with separate power supplies for each channel and separate power transformers.
There is one balanced output on this preamp. Also one RCA input can be converted to balanced input.
Very quite preamp with really sophisticated power supplies.
If you need more info please visit Bottlehead site.
If you buy this kit built by Bottlehead it would cost you over 2200USD plus 400USD for tubes.
Input impedance is 56K ohms with balance control centered. Output impedance is 500 ohms single ended and 1000 ohms balanced. Gain of our prototype at 1kHz measures 8.3dB. Frequency response is within 1dB from 17Hz to 30kHz. -3dB points are 7Hz and 70kHz. Noise level will depend upon the brand of 300B you choose, but our prototype’s S/N measures -91 dB at +4dBu output. THD measures 0.065% at 1kHz at 2Vrms output. Maximum output before the onset of clipping (which presents itself as a very gradual rounding of the sine wave trough) is 18Vrms.
Please check my other listing for matching Paramount SET amps.