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McIntosh MA5100 Integrated Amplifier

AED 5,850

HiFi

5.0

12 items live

Item Details

Age

10+ years

Warranty

Yes

Condition

A bit of wear and tear, but in good working condition

Usage

Used an average amount, as frequently as would be expected

Posted on: 19th May 2026

Description

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The McIntosh MA5100 is a vintage 2-channel solid-state integrated amplifier manufactured between 1966 and 1972. It is highly regarded as McIntosh's first fully solid-state integrated unit. [1, 2]
Key Specifications
Power Output: \(45\) Watts RMS continuous per channel into 4, 8, or 16 ohms
Total Harmonic Distortion (THD): Does not exceed \(0.25\%\) at rated power from 20 Hz to 20,000 Hz
Frequency Response: 10 Hz to 20,000 Hz (+0, -0.5 dB) at rated power
Damping Factor: 100 into 8 ohms
Input Sensitivity: 2mV (Phono/Tape Head), 300mV (High-Level Inputs)
Signal-to-Noise Ratio: 70 dB (Phono), 75 dB (Line)
Semiconductors: 34 transistors, 23 diodes, and 2 TRIACs
Dimensions: 16" Wide \(\times \) 5-7/16" High \(\times \) 14-1/2" Deep (including connectors)
Weight: 25 lbs (11.3 kg) [1, 2]
Features & Controls
Dual concentric bass and treble controls (adjustable \(\pm 18\) dB)
High and Low-frequency filters (LF: 50Hz, HF: 5kHz)
Selectable Phono equalization (RIAA or LP)
Phase switch (0 or 180 degrees)
Headphone jack and Loudness switch