McIntosh MA6100 (1972–1979)
A 70-watt solid state integrated amplifier serving as an entry point to the McIntosh lineup during the 1970s.
Overview
The McIntosh MA6100 is a solid state integrated stereo amplifier produced from 1972 to 1979. Marketed as a gateway into the McIntosh brand, it combines a preamplifier and power amplifier in one chassis. It delivers 70 watts per channel into both 8-ohm and 4-ohm loads, making it compatible with a wide range of speakers. The unit features a direct-coupled output stage without an autoformer, distinguishing it from some other McIntosh designs of the era.
Specifications
| Power output | 70 Watts into 8 ohms, 70 Watts into 4 ohms |
| Shipping weight | 6 lbs |
Design
The MA6100 uses a solid state, direct-coupled output stage design without an output autoformer. This simplifies the signal path and reduces dependency on transformers for impedance matching.
Market
Originally priced at $204.00, the MA6100 has seen a significant increase in collector interest, with units listed for as much as $1750, particularly those unused or well-maintained. Some owners report long-term daily use over 15 years, and servicing—such as bulb replacement in the front panel and general maintenance—is documented. Units described as serviced or regularly maintained appear more frequently in active listings.
eBay Listings
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