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McIntosh MC2505 User Manual

McIntosh MC2505
20 pages
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MC2505
SOLID
STATE
PRICE $1.25
STEREO
POWER AMPLIFIER
MC25O5
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McIntosh MC2505 Specifications

General IconGeneral
Total Harmonic Distortion0.25%
Input Sensitivity0.5V
Signal to Noise Ratio90dB
Damping Factor20
Output Impedance4, 8, 16 ohms
Input Impedance250k ohms
Power Output50W per channel
Frequency Response20Hz to 20kHz

Summary

General Description and Technical Details

Low Distortion Performance

Details the amplifier's low distortion guarantee, measured at full rated power for superior sound quality.

Preamplifier and Feedback Stages

Explains the two-stage preamplifier with transistors and the use of AC/DC negative feedback.

Output Stage Design

Describes the series push-pull amplifier, selected transistors, and rigorous testing for reliability.

Power Supply and Autoformer Technology

Autoformer Matching Capabilities

Discusses the trifilar autoformer for matching transistors to speaker impedances and achieving full power output.

Sentry Monitoring Circuit

Explains the circuit that prevents power output transistor failure due to output mismatch.

Typical Performance Data

Specifications

Electrical Specifications

Lists key electrical parameters like power output, distortion, frequency range, and noise levels.

Installation Procedures

Mounting and Securing

Instructions for attaching mounting brackets, making cutouts, and securing the unit with PANLOC.

Typical Hookup Diagram

System Component Integration

Depicts the overall hookup diagram connecting Tuner, Preamplifier, and Speakers to the MC2505.

Connecting the MC2505

Stereo Input and Speaker Wiring

Instructions for connecting stereo inputs and detailed guide on speaker wiring by impedance.

Critical Loudspeaker Warning

A crucial warning against connecting a monophonic loudspeaker to both terminals to prevent damage.

Operating the MC 2505

Guarantee and Service Information

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