The rear of the unit features 4 of our McIntosh Monogrammed Heatsinks™. Made from high quality materials with excellent thermal conductivity properties, these heatsinks are so efficient at dissipating heat that they warrant bearing the McIntosh “Mc” logo. They connect to advanced high current output transistors that eliminate thermal equilibrium lag time so that the first musical note played sounds just as good as songs played later in your listening session. The heatsinks are capped with handsome ventilation trim plates. These trim plates and the circular trim ring are made from aluminum and are finished to match the front panel handles.

The AC receptacle has been repositioned to provide additional clearance so a wider assortment of power cords can more easily be used. All of this sits atop a polished stainless steel chassis which rests on 4 new redesigned feet that feature a chamfered edge. Other updates include an updated power transformer, heavier gauge internal wiring, upgraded circuit components, and the addition of our power management system that will turn the amp off after a set amount of time when no input signal has been detected.

With all the changes and improvements made in the MC1.25KW, one thing that hasn’t changed is the large, fast responding 11” (27.9 cm) blue Watt meter that accurately shows the amp’s power output. Also unchanged is the signature black glass front panel with control knobs, illuminated logo, and aluminum end caps with handles. The front panel and meter have new direct LED backlighting for improved appearance and color accuracy.

Other exclusive McIntosh features included in the MC1.25KW include:

• Power Guard^® that monitors and adjusts the output signal at the speed of light and makes real time adjustments to prevent harsh sounding and potentially speaker damaging clipping
• Sentry Monitor™ – our fuse-less 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
• Quad Balanced design that cancels virtually all noise and distortion that may have crept into the audio signal
• Power Control to send power on/off signals to other connected McIntosh components (such as CD Players, turntables,tuners and media streamers) for easy system power up and shutdown
• Our patented Solid Cinch™ speaker binding posts that easily but securely attach the speaker cables to prevent them from coming loose and possibly causing a short; the binding posts are also gold-plated to prevent corrosion and ensure a quality signal is sent over your speaker cables

Both a balanced and unbalanced output are included to make bi-amping or tri-amping your speakers easier; they can also be used to send the audio signal to a secondary system if yourpreamplifier does not have enough outputs or to connect a powered subwoofer.

ELECTRONIC SPECIFICATIONS

• Power Output per Channel

  1200 Watts @ 2, 4 or 8 Ohms

• Number of Channels

  1

• Total Harmonic Distortion

  0.005%

• S/N below rated output

  Balanced: 124dB
  Unbalanced: 120dB

• Dynamic Headroom

  2.2dB

• Damping Factor

  >40 Wideband

• Rated Power Band

  20Hz to 20kHz

• Frequency Response

  +0, -0.25dB from 20Hz to 20,000Hz
  +0, -3dB from 10Hz to 100,000Hz

CONTROL

• Remote Power Control

  Yes

• Multi-Channel DB25 Cable

  N/A

GENERAL SPECIFICATIONS

• Circuit Configuration

  Quad Balanced

• Circuit Design

  Solid State

• Mono Bridge

  N/A

• Mono Parallel

  N/A

• Output Type

  Autoformer™

• Meters

  Yes

• Meter Light Switch

  Yes

• Balanced Input

  1

• Front Panel

  1/2″ Glass with handles

• Illumination

  Direct LED

• Chassis Style

  Polished stainless steel & black painted steel

CONNECTIVITY

• Speaker Binding Post Type

  Patented Solid Cinch™ Speaker Binding Posts

WEIGHTS & DIMENSIONS

• Dimensions (W x H x D)

  17-3/4″ (45.09cm) x 12-5/16″ (31.27cm) (including feet) x 22″ (55.88cm) (including the front panel and cables)

• Weight

  158 lbs (71.7 kg)

• Shipping Weight

  184 lbs (83.4 kg)