McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York MHA50 Portable Decoding Amplifier Operation Guide 13903-2699 Phone: 607-723-3512 www.mcintoshlabs.
Safety Instructions ATTENTION: RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry cloth. 7. Do not use or place near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat. 8. Only use attachments/accessories specified by the manufacturer. 9.
Lithium Battery, Disposal Instructions and FCC Information CAUTION: Lithium Battery Long Life Lithium type battery is used inside this product. To prevent the danger of fire or explosion of the internal Lithium Battery, do not overcharge or allow this product to become overheated. CAUTION: Risk of fire and burns. Do not open, crush or heat the unit above 140°F Disposal Instructions: When discarding this unit, comply with local rules or regulations.
Thank You Technical Assistance Please Take A Moment McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903 Phone: 607-723-3512 Fax: 607-724-0549 Your decision to own this McIntosh MHA50 Portable Decoding Amplifier ranks you at the very top among discriminating music listeners. You now have “The Best.” The McIntosh dedication to “Quality,” is assurance that you will receive many years of musical enjoyment from this unit. Please take a short time to read this information.
Table of Contents Safety Instructions................................................... 2 Lithium Battery........................................................ 2 Disposal Instructions............................................... 2 FCC Information...................................................... 3 Thank You and Please Take a Moment................... 4 Technical Assistance and Customer Service.......... 4 Table of Contents..................................................... 5 General Information.
Introduction Now you can take advantage of traditional McIntosh standards of excellence in the MHA50 Portable Decoding Amplifier. The Power Amplifier section of the MHA50 will drive Headphones or Earbuds to a high level of performance. The built-in Digital to Analog Conversion Circuitry provides a very high level of accurate performance. The McIntosh HXD ® Circuitry restores the directionality component of the spatial sound stage normally heard with Loudspeaker listening.
MHA50 Connections Top End View Connection of the AC/DC Power Adapter Output Connection for dynamic Headphones or Earbuds with a 3.5mm stereo mini phone plug for listening AC/DC Power Adapter provides recharging capabilities for the MHA50 Portable Amplifier Bottom End View iOS USB 2.0 Input Connection for the Digital Audio Signal coming from a iOS Mobile (Apple) Device Multi-USB 2.0 Micro Input Connection for the Digital Audio Signal coming from devices using the Android Operating System.
MHA50 Switches, Touch Screen Controls and Indicator Top End View GAIN Switch has a Low or High Setting to match-up with the Headphones/ Earbuds Sensitivity and Impedance characteristics Bluetooth Push-button to activate the MHA50 Bluetooth receiver circuity and process the Digital Audio Signal from the Bluetooth Wireless Signal Front View HXD Switch OFF or On settings allows for activation of the McIntosh Crossfeed Director Circuitry Bottom End View Digital Audio Input Selector Switch to choose the iOS
How to Operate the MHA50 Operation with iOS Apple Device Follow the steps below when Operating the McIntosh Portable Amplifier: 1. Switch power OFF to the MHA50 Portable Decoding Amplifier and the iOS Apple Mobile Device if they are ON. 2. Connect the Apple Mobile Device (using the supplied cable) to the iOS USB Connector on the MHA50. 3. Place the Input Selector Switch on the MHA50 to the iOS Position. 4. The MHA50 Operation Mode LED Indicator will illuminate GREEN.
Operation with iOS Apple Device, con’t 7. Use your finger tip to trace part of the Silver Colored Volume Control Circle to adjust the volume for your desired listening level. Note: If the maximum Volume Level is too high, place the MHA50 Gain Switch in the “L” Low Position. If the maximum Volume Level is too low, place the MHA50 Gain Switch in the “H” High Position. 8.
How to Operate the MHA50 Bluetooth Operation Follow the steps below when Operating the McIntosh Portable Decoding Amplifier using a Bluetooth wireless connection: 1. Switch power OFF to the MHA50 Portable Decoding Amplifier and the Device emitting a Bluetooth Signal if they are ON. 2. Place the Input Selector Switch on the MHA50 to the Multi Position. 3. The MHA50 Operation Mode LED Indicator will illuminate GREEN. 4. Momentarily press the Bluetooth Push-button on the MHA50.
Computer Operation, con’t Port on the computer so the Windows driver can be installed. Note: If an Apple Macintosh computer is used with the MHA50, no additional driver is required. The McIntosh MHA50 USB Audio Windows Driver is available for download from the McIntosh Web Site: http://www.mcintoshlabs.com/us/Support/ Pages/Manuals.aspx Under “PRODUCT CATEGORY” select “Headphone Amplifiers” then under “MODEL NUMBER” select “MHA50”. Click on “SEARCH” then select “McIntosh MHA50 USB Audio Windows Drive v1.
How to Operate the MHA50 “CONTROL PANEL” followed by selecting “SOUND”. Refer to figure 8. Figure 2 Figure 4 Figure 6 Figure 3 Figure 5 Figure 7 Figure 8 Windows Sound Settings For the McIntosh MHA50 Portable Decoding Amplifier to function via the Computer USB Connection, the following change needs to be made: 1. From the Windows START button, click on 2. Select “XMOS XS1-U8 MFA (ST)” and then click on the “Set Default” button.
How to Operate the MHA50 Computer Operation, con’t With the Windows Driver now installed, perform the following the steps: 1. Check to see the Input Selector Switch on the MHA50 is in the Multi-USB Position . 2. The MHA50 Operation Mode LED Indicator will illuminate GREEN. 3. Select the desired computer application to start music playback. 4. Set the Computer Volume Level between 50% and 75%. 5.
Specifications Headphone Output Load Impedance 8 - 600 ohms Power Requirements 5V --- (DC), 0.7A Total Harmonic Distortion 0.005% maximum Overall Dimensions Width is 2.7 inches (7.0cm) Height is 6.1 inches (15.5cm) Depth is 0.6 inches (1.4cm) Frequency Response +0, -0.5dB from 20Hz to 50,000Hz Signal To Noise Ratio (A-Weighted) 105dB below rated output Weight 0.5 pounds (0.2 kg) net, 1.0 pounds (0.
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.
