MC2.1KW

Solid State Amplifier

The MC2.1KW consists of three separate modules: one Output Module and two Power Modules that each contain a 1,000 W amplifier.

The incoming audio signal enters the Output Module from the preamplifier. An in-phase signal is sent from the Output Module to one of the Power Modules and is amplified. At the same time, an out-of-phase signal is sent to the other Power Module and amplified.

Both amplified signals exit the Power Modules and reenter the Output Module where they drive opposite ends of the bi-filar wound McIntosh Autoformer™.

Thanks to our hand wound Autoformer, the full 2,000 W of power can be delivered into a speaker regardless if its impedance is 2, 4 or 8 Ω.

The next generation MC2.1KW offers many sonic upgrades. Chief among them are substantially larger filter capacitors that improve the performance of low end frequencies as well as significantly improving dynamic headroom. These eight larger capacitors are located in the Power Modules behind the custom Power Bank that is visible through the front panel glass.

Dual sets of balanced and unbalanced inputs conveniently allow you to connect more than one preamplifier. This gives you the ability to easily switch between vacuum tube and solid state signals, such as from our reference level C12000 Solid State and Vacuum Tube Preamplifier that has outputs for both signal types, or from separate vacuum tube and solid state preamplifiers.

Exclusive McIntosh technologies that ensure your investment is protected and your experience flawless include: Power Guard®; Sentry Monitor ™; Quad Balanced Design; and Power Control.

MC2.1KW knows no bounds and it’s not limited to just being used with McIntosh speakers but can also be used with a wide variety of other speakers.

System Specifications:

• Power Output: 2000 W into 2, 4 or 8 Ω load
• Rated Power Band: 20 Hz - 20 kHz
• Dynamic Headroom: 2.1 dB
• Wide Band Damping Factor: > 40
• Frequency Response: +0, -0.25 dB, 20 Hz - 20 kHz; +0, -3 dB, 10 Hz - 100 kHz
• Total Harmonic Distortion: 0.005% maximum harmonic distortion at any power level from 250 mW to rated power, 20 Hz - 20 kHz
• Intermodulation Distortion: 0.005% maximum, if the instantaneous peak power output does not exceed twice the rated power output for any combination of frequencies from 20 Hz to 20 kHz
• Signal To Noise Ratio (A Weighted): 123 dB below rated output
• Input Sensitivity (for rated output): 5.0 V Balanced, 2.5 V Unbalanced
• Input Impedance: 22,000 Ω Balanced, 22,000 Ω Unbalanced
• Voltage Output: 126.5 V across 8 Ω, 89.5 V across 4 Ω, 63.3 V across 2 Ω
• Voltage Gain: 8 Ω: 34 db; 4 Ω: 31 dB; 2 Ω: 28 dB
• Power Control Input: 5-12 VDC
• Power Control Output: 12 VDC, 25 mA

Power Module Specifications:

• Power Requirements: 100 V, 50/60 Hz at 1440 W; 110 V, 50/60 Hz at 13 A; 120 V, 50/60 Hz at 12 A; 220 V, 50/60 Hz at 7.5 A; 230/240 V, 50/60 Hz at 6.5 A
• Overall Dimensions (W x H x D): 456 x 302 x 597 mm
• Weight: 65.8 kg net, 77.1 kg in carton

Output Module Specifications:

• Power Requirements: 100, 110, 120, 220, 230, 240 V, 50/60 Hz at 35 W
• Overall Dimensions (W x H x D): 456 x 309 x 597 mm
• Weight: 56.7 kg net, 68 kg in carton