Yamaha (Hi-Fi) · CA-series integrated amplifiers

CA-1000

Yamaha's first great integrated: a class-A/class-B switch on the front panel, 70 W in B and 15 W of pure class A.

Catalogue code: CA-1000
Years: 1973
Type: integrated amplifier
Valves & speakers: 70 W + 70 W into 8 ohms in class B, 15 W + 15 W in class A (switchable)
Lifecycle: retired
Confidence: High

Specifications

Watts: 70
Watts_basis: per channel, 8 ohm load unless noted in rated_load
Channels: 2
Technology: solid-state
Class_of_operation: A/AB switchable
Weight: 15.5 kg

Safety

Mains-powered vintage Yamaha: the V-FET devices in the B-1/B-2 are long out of production and fail if the bias drifts, so never run an unrestored unit hard. Japanese-market units are 100 V - use a step-down transformer.

01 / Witnesses

What applies here

Marks that can be entered for this maker: Model / catalogue number, Model / catalogue number, British capacitor code (Hunts, Mullard), Japanese capacitor code (Nichicon, Chemi-Con, ELNA), EIA component code, Version & era marker.

02 / Bounds

The model year is a floor

Nothing predates 1973; components only push the date later.

03 / Value

What moves the price

Sold-listing reading: fair JPY 29,700, good JPY 29,700, excellent JPY 29,700 JPY · 1 sold listings (thin sample — indicative only) · as of 2026-10-18. 1 completed sale in JPY observed on 2026-10-18. fair/good/excellent = min/median/max of the observed SOLD prices (29700 / 29700 / 29700), NOT condition grades - neither source publishes a per-condition split. Only 1 sale in this currency, so it is recorded as an estimate with sample_flag thin, not as an aggregate. Sale/completion dates span 2026-10-04 to 2026-10-04. Channels counted: mercari_sold x1. No exchange-rate conversion was applied anywhere in this file.