Treat Your Headphones to McIntosh Vacuum Tube Amplification.
The MHA200 Vacuum Tube Headphone Amplifier is designed for discerning headphone enthusiasts who demand the most from their headphones. Its versatile set of connectivity options, including balanced inputs and outputs, allows for nearly all headphone types to be connected to enjoy an extraordinary personal listening experience.

A pair of 12AT7 and 12BH7A dual triode vacuum tubes power the compact MHA200. The 12AT7 vacuum tubes amplify the incoming audio signal while the 12BH7A tubes provide the power to drive the output to your headphones with low distortion. The MHA200 uses a pair of our Unity Coupled Circuit output transformers to deliver pristine audio to your ears. Our Unity Coupled Circuit is the same technology McIntosh was founded on in 1949 and is still used in our vaunted full-size home audio vacuum tube amplifiers such as the timeless MC275 and the more recent MC1502. Indeed, the MHA200 shares many physical design traits with the aforementioned vacuum tube amplifiers.

A wide assortment of connectivity options come on the MHA200. For attaching your headphones, there are 3 options: a pair of 3-pin balanced XLR connectors for dedicated Left and Right balanced output; a 4-pin balanced XLR connector for balanced stereo output; and a 1/4″ stereo headphone jack.

FEATURES

Compact footprint: just 6-1/8″ (15.6cm) x 9-1/8″ (23.2cm)
4 selectable headphone impedance ranges
Balanced and unbalanced analog inputs
Balanced stereo or dedicated Left & Right outputs

TECHNICAL SPECS

Headphone Power Output: 500mW
Headphone Output Impedance

32-100 Ohms
100-250 Ohms
250-600 Ohms
600-1,000 Ohms

Total Harmonic Distortion: 0.5% maximum harmonic distortion at any power level from 250 milliwatts to rated power, 20Hz to 20,000Hz <0.20% at 1W, 20Hz to 20,000Hz
Frequency Response: +0, -0.5dB from 20Hz to 20,000Hz
Sensitivity (Unbalanced): 1.0 Vrms
Sensitivity (Balanced): 2.0 Vrms
Maximum Input Signal (Unbalanced): 8V
Maximum Input Signal (Balanced): 16V
Signal To Noise Ratio: 94dB
Input Impedance (Balanced / Unbalanced): 20K/10K
Damping Factor: >150
Voltage Gain

12dB at 32 Ohms
17dB at 100 Ohms
21dB at 250 Ohms
25dB at 600 Ohms

Headphone Output

One pair of 3-pin balanced XLR connectors for dedicated Left and Right balanced output
One 4-pin balanced XLR connector for balanced stereo output
One 1/4″ stereo headphone jack

Balanced Input: 1
Unbalanced Input: 1
Power Requirement: 120V 50/60Hz, 1.5A
Standby Power Requirement: <0.5 Watts
Unit Dimensions (W x H x D): 6-1/8″ (15.6cm) x 5-3/4″ (14.6cm) x 9-1/8″ (23.2cm)
Unit Weight: 10.5 lbs (4.8 kg)