Integrated amplifiers — McIntosh MA252
Description, images, technical data and specifications
McIntosh MA252
Image source — © McIntosh
The first hybrid integrated amplifier in the McIntosh catalog was the MA252. It is largely based on the classic MC275 tube, but it does not lose the advantages of transistor sound. The preamp part is based on two pairs of lamps — 12AX7a and 12AT7, the lamps themselves are covered with protective covers. The output stage is transistor, and outputs an amplifier of 100 watts per channel at 8 ohms or 160 watts per channel at 4 ohms.
Specifications
Model name
MA252
Type
Integrated Amplifier with DAC and Phono
Analog inputs (balanced)
1
Analog inputs (single-ended)
2
Input sensitivity (mV)
600 (XLR) + 300 (RCA)
Input impedance (balanced) (Ω)
20 000
Input impedance (single-ended) (Ω)
20 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
Yes
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
100
Output power (4Ω) (W)
160
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
10
Frequency response high +/- 3dB (Hz)
100 000
Signal to Noise Ratio (dB)
97
Total Harmonic Distortion + Noise (%)
0.03
Damping factor
>200
Dimensions (mm)
305 x 194 x 419
Weight (kg)
12.7
Official link
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