McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 MHA200 Tube Headphone Amplifier Owner’s Manual Phone: 607-723-3512 www.mcintoshlabs.
Important Safety Information is supplied in a separate document “Important Additional Operation Information Guide” Inside the Box DO THIS FIRST Besides all the protective packaging you should find: • A literature pack including this manual • An AC Power Cord • An MHA200 Headphone Amplifier Removal of Foam Inserts over Vacuum Tubes Taking it out of the Box The easiest way to remove the MHA200 from its shipping carton is to: • Open the top of the box • Remove and read this manual • Gently turn the box ov
Thank you from all of us at McIntosh The MHA200 is a McIntosh Vacuum Tube Amplifier designed and crafted for one purpose- to power your headphones with the best possible sound. • • • Output stage is a Push-Pull pure Class-A triode Only Headphone Amplifier with Unity Coupled Output Transformers and Proprietary Push-pull configuration technology Guaranteed 500mW power for ALL loads from 32 to 600 Ohm You have invested in a precision instrument that will provide you with many years of enjoyment.
120V 50/60Hz 50 WATTS INPUTS UNBALANCED L BALANCED POWER CONTROL R L IN R OUT for power control. This will enable additional equipment to be powered on and off when the MHA200 is powered on or off. Power Control Meter Illumination Control Ground Connect components for Power Control using a 3.5mm stereo mini plug. Figure 06– Power control (trigger) mini plug AC Power Use the included AC Power Cord to connect the MHA200 to a working AC outlet.
1 STANDBY / ON Ω 32Ω VOLUME 600Ω LOAD L R STEREO STEREO HEADPHONE OUTPUTS Figure 07– Front View The center indented position is unity gain. If your connected source is a variable output and you will be using the source (a preamplifier for example) to control the volume, then set the Right Knob to unity gain. When using a fixed output source, you will use the Right Knob to control the Volume. To avoid damaging headphones and ears, do not start the MHA200 at a high volume.
Re-packing the MHA200 Dimensions 9 1/8” 23.2cm 5 3/4 " 14.6cm 6 1/8 " When shipping the MHA200, it is highly recommended that the unit be packed as it was originally shipped to avoid damage. Failure to properly pack the unit will likely result in damage. If you need any of the packing material, you can contact McIntosh Customer Service. 15.6cm Manual Power Cord Foam Back Side (C) 6 1/8 " 15.6cm Foam Tube Protection Cover (D) STANDBY / ON 1 4 2-1/2" LOAD RANGE L R 6.
Technical Specifications Power Output 32 Ohm Load 500mW 100 Ohm Load 500mW 250 Ohm Load 500mW 600 Ohm Load 500mW Output Load Impedance 32 , 100 , 250 , 600 Rated Power Band 20Hz to 20kHz Total Harmonic Distortion 0.5% Dynamic Headroom 1dB 8 ohm load 1.3dB 4 ohm load Frequency Response +0, -0.5dB from 20Hz to 20,000Hz Input Sensitivity (for rated output) 1.0 Vrms Unbalanced 2.
McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, NY 13903 www.mcintoshlabs.com The continuous improvement of its products is the policy of McIntosh Laboratory Incorporated who reserve the right to improve design without notice. Printed in the U.S.A. McIntosh Part No.