Sansui Electric · AU-series integrated amplifiers

AU-9500

The 23 kg flagship of 1972, still built like a valve unit inside, with a fully shielded preamp section.

Catalogue code: AU-9500
Years: 1972
Type: integrated amplifier
Valves & speakers: 75 W + 75 W continuous into 8 ohms (80 W + 80 W at 1 kHz)
Lifecycle: retired
Confidence: High

Specifications

Watts: 75
Watts_basis: per channel, 8 ohm load unless noted in rated_load
Channels: 2
Technology: solid-state
Class_of_operation: not stated in the catalogue sheet
Weight: 23.3 kg

Safety

Mains-powered vintage Sansui: the AU-X1 and BA-5000 run high rail voltages and are unstable if the original capacitors have dried out. The 'Blackface' and 'Definition' faceplates are easily scratched; the wood cabinets are usually missing.

01 / Witnesses

What applies here

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

02 / Bounds

The model year is a floor

Nothing predates 1972; components only push the date later.

03 / Value

What moves the price

Sold-listing reading: fair JPY 46,500, good JPY 56,000, excellent JPY 97,400 JPY · 7 sold listings · as of 2026-10-18. 7 completed sales in JPY observed on 2026-10-18. fair/good/excellent = min/median/max of the observed SOLD prices (46500 / 56000 / 97400), NOT condition grades - neither source publishes a per-condition split. Sale/completion dates span 2026-04-29 to 2026-10-07. Channels counted: yahoo_closed x3, mercari_sold x4. Sales seen in other currencies are listed but NOT mixed in and NOT converted: USD x1 (669.99). No exchange-rate conversion was applied anywhere in this file.