Altec 9442A
A stereo power amplifier produced by Altec Lansing, noted for use with lower sensitivity speakers and available in an anniversary edition.
Overview
The Altec 9442A is a two-channel power amplifier manufactured by Altec Lansing. It was offered in a standard version and an "anniversary edition" variant, with some units referred to as the "Altec 9442A/SA." The amplifier is designed to deliver high power output suitable for demanding speaker loads, and has been used by audiophiles in combination with preamps like the Onkyo P3106. While exact production years are not confirmed, the unit remains recognized in vintage audio circles for its robust performance and serviceability.
Specifications
| Product type | Two Channel Power Amplifier |
| Manufacturer | Altec Lansing |
| Rated output power | 150 watts per channel into 4 ohms |
| Maximum input voltage | 7.775 V RMS |
| Input sensitivity for rated output | 0.775 V RMS into 4 ohms |
Market
Used units have been listed for sale at prices ranging from $150 to $400. A restoration kit for filter capacitors is commercially available for $175.00 or €159.91, indicating ongoing support for maintenance. Common issues include malfunctioning in one channel and a faulty protect circuit. Recapping is a known maintenance procedure, and a service manual is available for repair and setup, including guidance on wiring the transformer for 110V/120V or 220V/240V operation.
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