David Berning Co TF-12 NOS Tubes Upgraded

David Berning Co. TF-12 vacuum tube preamplifier Serial Number 88260.  This rare legendary preamp easily competes with modern offerings and in many cases musically exceeds them.  Detail, air and tonality with zero audible grain, low noise floor plus exceptional channel separation.  Patented David Berning Co. Switching power supply.  Includes set of Jensen JT-347 MC Step Up transformers encased in outboard aluminum enclosure, MC loading range 10 ohms - 711 ohms plus RIAA MM 47k phono section, Factory Remote Control. (2 pairs) 12AU7 NOS Mazda Cifte tubes (line stage) + back up set (stock), (2 ea.) NOS Seimens 12AX7 plus (2 ea.) RCA 12AT7 vacuum tubes reside within the phono section.  Stillpoints Ultra AL isolation footers included (4/ea.).  12AU7 linestage modification and Jensen Outboard step up transformer modification performed by David Berning himself.  Preamplifier functions flawlessly and will provide many more trouble free years of musical bliss. 

David Berning TF12 completely tested and checked within the last 2 years personally by David Berning.

Preamplifier will be expertly packed for safe shipping worldwide. 

Specifications:

Stereo preamplifier with remote control. Frequency response: high level +-1dB from 4Hz to 50kHz; phono within +-0.25dB of RIAA standard from 20Hz to 20kHz. Gain: high level 32dB; phono 32dB. Sensitivity: 0.6mV phono or 26mV high level for 1V out. Noise: Phono 60dB below 1mV in; high level 84dB below 1V. Input impedance: 47k ohms phono, 60k to 80k ohms high level, depending on volume setting. Output impedance: 3k ohms, tape and main. Max. input: Phono 200mV at 1kHz, high level 9V. Max. output: 6V. Harmonic distortion: 0.03% 2nd & 3rd, 0.002% 4th and above at 1kHz. Remote control: Infra-red, controls volume, channel balance, and mute. Power consumption: 40W. Dimensions: 19"W by 3-1/2"H by 13"D. Weight: 11 lbs.

Sincerely,
Christopher Thornton
Artisan Fidelity
www.artisanfidelity.com
[email protected]
219.933.8115