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 […]