The McIntosh MC611 power amplifier is a monoblock that develops a very serious output power of 600 W. Thanks to the use of proprietary output transformers in the design, the power indicator does not change when the device is operated at a 2.4 or 8 ohm load. To connect speakers of the appropriate impedance, the rear panel of the McIntosh MC611 has separate gold-plated screw terminals.
The McIntosh MC611 has received a number of improvements over the previous MC601 model. In particular, the total capacitance of the filter capacitors was doubled. This made it possible to achieve a sharp increase in dynamics by 55%, which had the best effect on the reproduction of low frequencies. Aesthetic improvements include new LED lighting on the amplifier front panel and new transformer housings with glass windows. The cooling radiators are made in the form of a corporate monogram, which has recently become another hallmark of the brand.
The McIntosh MC611 amplifier is equipped with balanced and unbalanced inputs, duplicated by corresponding pass-through outputs. McIntosh MC601 is made on completely discrete elements, and its output stages are equipped with high-current transistors selected to meet the specified performance characteristics.
The McIntosh MC611 is mounted on a solid steel chassis that prevents external vibrations from interfering with its circuitry. The layout of the amplifier components is designed in such a way as to exclude the influence of any electrical interference on sensitive audio circuits. The front panel of the McIntosh MC611 is decorated with a large dial indicator of the output power, the brightness of which can be controlled from the connected McIntosh Control Center preamplifier. The proprietary glass front panel with light guides for indicating operating modes is complemented by two metal handles for convenient transportation of the amplifier. The device is installed on massive anti-resonance supports.
McIntosh MC611 has reference sound quality and is recommended for building high-end audio systems. Neutral tonal balance combined with a very wide dynamic range allows the McIntosh MC611 to be used in both stereo and home theater applications. The significant weight of the amplifier, which is more than 42 kilograms, makes it optimal for floor placement, in close proximity to the speaker system. In this case, you can use a balanced connection to the preamplifier, which, even if you use a long interconnect cable, will minimize the noise level.
Characteristics McIntosh MC611
Number of channels 1
Power 600 W (2/4/8 Ohm)
Frequency range 20 Hz – 20 kHz (+/- 0.025 dB)
Signal-to-noise ratio 124 dB
Overload headroom 1.8 dB
Damping factor more than 40
General harmonic distortion 0.005%
Inputs RCA, XLR, duplicated outputs
Output power meter is available
Output terminals for connecting acoustics are separate for 2, 4 and 8-ohm acoustics
Dimensions (WxHxD) 445x240x558 mm
Weight 42.2 kg
