McIntosh MI254


The MI254 includes many McIntosh design cues including a black glass front panel, blue Watt meters, an illuminated McIntosh logo, and a familiar form factor highlighted by silver trim

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McIntosh MI254

McIntosh MI254

The McIntosh MI254 4-Channel Digital Amplifier is a versatile multi-channel amplifier ideal for use in distributed audio, home theater or 2-channel stereo playback.

It delivers 250 Watts into 8 Ohm speakers or 300 Watts into 4 Ohm speakers via its highly sophisticated closed loop digital switching amplifiers.

These amplifiers are paired with extremely robust power supplies that produce performance levels rarely achieved in distributed audio.

It has Friendly physical dimensions and is 2U rack mountable via the included mounting ears (the mounting ears are removable for non-rack installations).

As a highly efficient Class D amplifier, it does not require noisy cooling fans to maintain nominal operating temperature.

In addition to distributed audio use, the McIntosh MI254 is well suited for home theaters to drive surround sound speakers and could be integrated into virtually any existing home theater system.

On the front panel are two blue McIntosh Watt Meters that display the summed power output of channels 1 + 2 and channels 3 + 4. Multi-color LED indicators display the status of each channel.

The back panel includes both a balanced and unbalanced input for each channel along with our standard 5-way speaker binding posts.

Other features that come with the MI254 are: Power Guard® signal overload technology that prevents over-driving the speakers.

Their Sentry Monitor short-circuit protection circuit that disengages the output stage before current exceeds safe operating levels and then resets automatically when operating conditions return to normal.

BUS input & outputs to easily distribute a stereo signal to multiple outputs and/or multiple amplifiers; individual channel inputs; 12 Volt triggering capabilities; and eco-friendly on/off signal sensing that turns the unit off if no input signal has been detected for a set amount of time or automatically turns the amp on when it senses a signal.

The MI254 includes many McIntosh design cues including a black glass front panel, blue Watt meters, an illuminated McIntosh logo, and a familiar form factor highlighted by silver trim. The ideal power amplifier for your home installation

Specifications McIntosh MI254

Specifications McIntosh MI254
  • Power Output per Channel

250 Watts into 8 Ohms
300 Watts into 4 Ohms

  • Number of Channels


  • Total Harmonic Distortion


  • S/N below rated output


  • Dynamic Headroom

8 Ohms: 2.5dB
4 Ohms: 3.5dB

  • Damping Factor

8 Ohms: >85
4 Ohms: >45

  • Rated Power Band

20Hz to 20kHz

  • Frequency Response

+0, -0.9dB from 20Hz to 20,000Hz


  • Remote Power Control


  • Multi-Channel DB25 Cable



  • Speaker Binding Post Type


General Specifications

  • Circuit Configuration

Closed loop digital switching

  • Circuit Design


  • Mono Bridge


  • Mono Parallel


  • Output Type

Direct Coupled

  • Meters


  • Meter Light Switch


  • Balanced Input


  • Front Panel

Glass with removable rack mounting ears

  • Illumination

Direct LED

  • Chassis Style

Black painted steel

  • BTU Rating

1000 BTU/h

Weights & Dimensions

  • Unit Dimensions (W x H x D)

17-1/2″ (44.45cm) (19″ (48.3cm with mounting ears)) x 4-5/16″ (11cm) (including feet) x 21″ (53.3cm) (including front panel and cables)

  • Unit Weight

23.5 lbs (10.7 kg)

  • Shipping Weight

40 lbs (18.1 kg)




McIntosh Heritage Founded in 1949 by Frank McIntosh and Gordon Gow McIntosh is known for offering distinguished home audio systems that deliver the ultimate experience in music and film. Offering products for two-channel stereo sound systems and multi-channel home theaters with surround sound, McIntosh continues to define the ultimate home audio entertainment experience for discriminating listeners around the world. Their iconic blue Watt output meter is globally recognised as a symbol of quality home audio. With a McIntosh home stereo system or home theater, listeners have the ability to create their own luxury audio experience – and truly live their music. McIntosh products are designed and handcrafted at their Binghamton, NY factory by their dedicated employees who share a passion for music and the McIntosh heritage. Since their inception, McIntosh has been powering some of the most important moments in music history and pop culture. From President Lyndon Johnson's inauguration speech to Woodstock to the famous Grateful Dead "Wall of Sound," McIntosh has not only witnessed history, they have shaped it.
Sound is not just a product of what they create; it is the core of their being. Their dedication to its engineering goes beyond performance. It flows through every element of their company and drives our unwavering commitment to sound excellence. Embedded in every aspect of our craftmanship, it is the heartbeat that resonates within our products, connecting music lovers to the soul-stirring power of sound.

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