• These commercial threads are for private transactions. diyAudio.com provides these forums for the convenience of our members, but makes no warranty nor assumes any responsibility. We do not vet any members, use of this facility is at your own risk. Customers can post any issues in those threads as long as it is done in a civil manner. All diyAudio rules about conduct apply and will be enforced.

Grant Fidelity B283 MKII Buffer

If quality is your name, this buffer is your game. Not only does this Grant Fidelity buffer have better quality control than your standard Chinese made buffer, but I have also upgraded this one. The tubes are 1952 Raytheon 6SN7 GTB, but I'll include the stock tubes as well. I have also upgraded all the signal capacitors to ANSAR PPA units, installed film bypass caps on the power supply caps, and bleeder resistors where needed to keep everything safe. :)

I was using this between my old passive preamp and my amp, but my new passive preamp does not seem to benefit from this in the signal path; it's too well designed and high quality... This buffer does make a big difference if you have any impedance issues.

The buffer will be shipped in the factory box with factory foam, with factory accesories.$200 plus actually shipping.
Picture of the installed ANSAR caps:


  • GF-buffer-inside.jpg
    159.7 KB · Views: 113