MC2301

Vacuum Tube Amplifier

The new McIntosh MC2301 monoblock tube amplifier hails the fusion of our Unity Coupled and Quad-Differential circuit topologies. From the inception of McIntosh Labs, Unity Coupling stands as one of the premiere tube topologies ever conceived, making possible revolutionary power bandwidth and low distortion. Quad-Differential circuitry, a recent McIntosh innovation, cancels nearly all inherent noise and circuit-born nonlinearities resulting in the lowest noise levels ever achieved in a tube amplifier. With 300 Watts available at 8, 4 or 2 ohms, the MC2301 provides power enough to drive even the most demanding loudspeakers. From the demands of massed chorale to full-on rock and roll, the MC2301 delivers the most extraordinarily lifelike and dynamic performance ever heard from a McIntosh tube amplifier.

The MC2301 design is fully balanced from input to speaker output and is the first ever McIntosh tube amplifier to include Quad-Differential circuitry. A blend of tube and solid state devices comprise a super-linear input stage and the output stage, based upon eight KT88 power tubes, terminates in a custom multifilar wound output transformer providing very low distortion and wide power bandwidth. The result? A staggering 117dB signal to noise ratio combined with vanishingly low distortion to provide remarkable low-level linearity and unmatched liquidity.

• Power Output: 300 watts into an 8, 4 or 2 Ohm load is the minimum sine wave continuous average power output
• Output Load Impedance: Terminals for 8, 4 and 2 Ohms
• Rated Power Band: 20 Hz to 20 kHz
• Total Harmonic Distortion: 0.5% maximum harmonic distortion at any level from 250 milliwatts to rated power output
• Frequency Response: +0, -0.5 dB from 20 Hz to 20 kHz; +0, -3.0 dB from 10 Hz to 100 kHz
• Input Sensitivity: 1.7 V Unbalanced, 3.4 V Balanced
• A-weighted Signal-to-noise Ratio: 117 below rated output
• Intermodulation Distortion: 0.5% maximum if instantaneous peak power output does not exceed twice the rated output, for any combination of frequencies from 20 Hz to 20 kHz
• Wide Band Damping Factor: Greater than 15
• Input Impedance: 47,000 Ohms
• Tube Compliment: 2 - 12AT7 Voltage Amplifiers, 8 - KT88 or 6550 Output Tubes
• Power Requirements: 100 volts, 50/60 Hz, 6.6 amps; 110 volts, 50/60 Hz, 6 amps; 120 volts, 50/60 Hz, 5.5 amps; 220 volts, 50/60 Hz, 3 amps; 230 volts, 50/60 Hz, 2.75 amps; 240 volts, 50/60 Hz, 2.75 amps; Standby 1 W