At Paragon, McIntosh products are not just pictures on our website. As the only World of McIntosh Experience Center in North America, we proudly display all of these products in our showroom. Buy with confidence from a leading McIntosh brick and mortar/authorized online retailer. – Larry Marcus, President
The MC1.25KW Quad Balanced Power Amplifier is McIntosh’s newest and one of their most advanced amplifiers. Redesigned from top to bottom, it replaces the venerable MC1.2KW as McIntosh’s most powerful single chassis monoblock amplifier. A simple glance at this 158 pound amp is enough to convey its power and performance capabilities, but when you hear it – then you’ll truly understand what it can do.
The MC1.25KW outputs 1,200 Watts of pure power into a single channel with a nearly imperceptible total harmonic distortion of 0.005%. This astonishing amount of power is fully available to 2, 4 or 8 Ohm speakers via McIntosh Autoformer™ technology. A pair of these amps can anchor a home audio system that can rival nearly any stereo system in the world.
Updates and enhancements abound in the MC1.25KW. A 50% increase in filter capacity improves the performance of low-end frequencies as well as increasing dynamic headroom. The top of the amp showcases an updated yet unmistakable McIntosh industrial design that will fit right in with current McIntosh products or those made decades ago. The audio Autoformer and power transformer remain located just behind the front panel, but are now contained in new glass topped enclosures. In between them is new circular glasswork housing the amplifier’s name badge that is adorned with a decorative trim ring.
The rear of the unit features 4 McIntosh Monogrammed Heatsinks™. 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 McIntosh’s power management system, which will turn the amp off after a set amount of time when no input signal has been detected.
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 your preamplifier does not have enough outputs or to connect a powered subwoofer.
With all the changes and improvements made in the MC1.25KW, one thing that hasn’t changed is the large, fast-responding 11” 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.
Monitors and adjusts the input signal at the speed of light and makes real time adjustments to prevent harsh sounding and potentially speaker damaging clipping.
McIntosh’s 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
Cancels virtually all noise and distortion that may have crept into the audio signal.
Sends 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.
McIntosh’s patented speaker binding posts 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.
Power Output Per Channel
1200 Watts @ 2, 4 or 8 Ohms
Number of Channels
Total Harmonic Distortion
S/N Below Rated Output
Rated Power Band
20Hz to 20kHz
+0, -0.25dB from 20Hz to 20,000Hz
+0, -3dB from 10Hz to 100,000Hz
Remote Power Control
Meter Light Switch
1/2″ Glass with handles
Polished stainless steel & black painted steel
Speaker Binding Post Type
Patented Solid Cinch™ Speaker Binding Posts
17-3/4″ (45.09cm) x 12-5/16″ (31.27cm) (including feet) x 22″ (55.88cm) (including the front panel and cables)
158 pounds net; 184 pounds shipping weight
Subject to the terms and conditions, McIntosh Laboratory, Inc. (“McIntosh”) warrants to the original owner that this Product shall be free from defects in workmanship or materials for a term of three (3) years from the date when it was purchased from an Authorized McIntosh Dealer. Provided, however, that rather than the three (3) years of coverage afforded the Product generally, where applicable, vacuum tubes contained in our Products are warranted for 90 days from the date of purchase, hard disc drives and projector lamps contained in our Products are warranted for one (1) year from the date of purchase.
In the event of any defect covered by this Warranty, McIntosh shall without charge provide all parts, materials, and labor necessary to restore the Product to its original specifications. After repair, McIntosh shall return the Product to its owner at the owner’s expense. In the alternative, McIntosh may at its sole option either replace the Product without charge, or if replacement is not commercially practicable or repair or replacement cannot be accomplished within a reasonable time, McIntosh may refund the purchase price of the Product, subject where appropriate to reasonable depreciation for actual use in accordance with applicable laws, in full satisfaction of its warranty obligations. McIntosh or its Authorized Service Agency will undertake to complete the repair and return of the Product as soon as circumstances permit, unless prevented by causes beyond their reasonable control.
This Warranty does not cover any of the following: (a) glass panels, cabinetry, trim, or other appearance items (except where they are defective at the time of original sale and the Product is delivered for repair within the first thirty (30) days thereafter); (b) batteries, or damage to the Product caused by failure of batteries; (c) or damage to the Product caused by failure of projector lamp; (d) loss of, or damage or corruption to, digital data, files, or other information content of any kind, regardless of cause; (e) failures arising from accident, catastrophe, misuse, neglect, or failure to properly connect and operate the Product in accordance with the accompanying instructions; (f) failures arising from improper installation or removal of the Product; or (g) failures arising from any tampering, alteration, or damage to the Product or attempted servicing of the Product by anyone other than McIntosh or an Authorized McIntosh Service Agency; and McIntosh shall have no liability or obligation of any kind with respect to any of the foregoing types of failures.