McIntosh Laboratory · Receivers

MAC1900

All solid-state 55 W/channel receiver.

Catalogue code: MAC1900
Years: 1973–1978
Type: receiver
Valves & speakers: All solid-state 55 W/channel receiver
Lifecycle: retired
Confidence: High

Specifications

Technology: solid-state
Channels: 2
Inputs_outputs: phono, FM/AM tuner, line

Safety

Solid-state: check autoformer/Power Guard boards and the original output devices; re-professional recap is expected at this age.

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, 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 $202, good $405, excellent $600 USD · 14 sold listings · as of 2012-07 – 2013-12. Classic Receivers eBay SOLD-price table (https://classicreceivers.com/vintage-receiver-values), 14 completed listings; fair/good/excellent here are the observed minimum / median / maximum of those sold prices, not condition grades.