Marantz SR8500 with Burson V5 Opamp Mod

This upgrade has turned a HT amp that I would get bored with listening to music, into an amp with detail space and punch that I have only ever had from my VTL tube amp. The VTL is still better but I would expect that from an amplifier that cost $3800 in 1993, although having […]

Kenwood, KA-4006 with Burson V4 Opamp upgrade

I’ve used Burson Supreme Sound OpAmps to upgrade a very nice audio gear – the old-school classic Japanese integrated amplifier Kenwood KA-4006, made circa 1972-1974. Many enthusiasts love this amplifier for warm sound, marvelous exterior and exceptional quality of chassis. Originally the amplifier has two JRC4558 opamps with round body, rare nowadays. One was on […]

Xiang Sheng DA 03 with Burson V5 Opamp upgrade

Very good even the heat of the power voltage stabilizers are less. Looks like the current is a lot less then of the original opamps. DAC opened up all registers better and tide bass, stereo image is a lot better, more depth and clean sound stage. I guess the opamps rolling has lift up the […]