CONDITION

This unit is in excellent condition and works properly, and has been fully restored. The deteriorated transistors, electrolytic capacitors, pilot lamps, and AC cord have been replaced. The switches and volume/variable resistors have been cleaned with electronic parts cleaner and treated with contact restorer; there is no scratchy noise (gari), and sound output is good. The power circuit has had its DC balance and bias adjusted. The cabinet, panel, and knobs have been disassembled and cleaned.

Included accessories: owner's manual (Japanese, copy).

ABOUT THIS ITEM

The Yamaha CA-1000II is a Natural Sound integrated amplifier made in Japan by Yamaha, released in 1976 as an improved version of the acclaimed CA-1000 during the golden era of Japanese hi-fi. Its defining feature is a built-in Class A / Class B switching circuit that lets the listener choose between high output in Class B — 70 watts per channel into 8 ohms — and the high transparency and purity of Class A operation at 15 watts per channel, eliminating crossover distortion. The power amplifier section uses an all-stage direct-coupled pure-complementary OCL circuit, while the equalizer amplifier combines an input stage using Yamaha's original dual FET with a Class-A SEPP output stage for an exceptionally rich phono section, with two phono inputs compatible with both MM and MC cartridges and switchable input impedance. It also features a two-stage tone control, high and low filters with two positions each, continuously variable loudness, a microphone input, dual tape inputs with two-way dubbing, a separable pre/power amplifier, and connections for three speaker groups. Robustly built with large heatsinks and a massive transformer, the CA-1000II remains a refined and highly sought-after vintage integrated amplifier.

・Power Supply Voltage: AC 100V, 50/60 Hz (Japanese domestic model). Please use a suitable step-down transformer in 110–240V regions.

— Grape Japan