McIntosh MHA50 User manual

McIntosh Laboratory, Inc. 2 Chambers Street Binghamton, New York 13903-2699 Phone: [phone] www.mcintoshlabs.com
MHA50
Portable Decoding Amplifier
Operation Guide

2
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.
      
manufacturer.
9. Unplug the supplied AC /DC Adapter during
lightning storms or when unused for long periods
of time.
       
       
damaged in any way, the AC /DC Adapter is dam-
        
       
to rain or moisture, does not operate normally,
Safety Instructions
   
         -
        
     
12. If this equipment is supplied with AC /DC Adapter
with separate power supply cord or the AC/DC
Adapter plugging directly into an a.c. receptacle,
      
disconnect this equipment from the a.c. mains
remove the AC /DC Adapter mains power supply
cord from the a.c. receptacle or remove the AC /
DC Adapter when it is directly plugged into the a.c.
receptacle.
       
         
       
placed on the apparatus.
         
         
      
        
sur l’appareil.
14. Headphones/Earphones connected to this Digital
   
   
    
prevent damage to the Ear, it is
recommended not to play at high
   
to high sound pressure levels can cause perma-
nent hearing impairment or loss.
    
      
pertes de l’audition.
         
apparatus.
       
        
climates.
L’utilisation de l’appareil dans un climat tropical
 

3
CAUTION: Lithium Battery
Disposal Instructions:
When discarding this unit, comply with local rules or
      
      
with the local regulations concerning an
electronic product containing a Lithium
      
    
       
l’environnement.
Long Life Lithium type battery is used inside this
product. To prevent the danger of re or   
internal Lithium Battery, do not overcharge or allow this
product to become overheated.
        
       
Lithium Battery, Disposal Instructions and FCC Information (For US and Canada Customers)
Statement for Class B digital device acc. to
FCC 15.105 as following:
        
comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules.
      
protection against harmful interference in
    
generates, uses and can radiate radio frequency
energy and, if not installed and used in
accordance with the instructions, may cause
harmful interference to radio communications.
However, there is no guarantee that interference
will not occur in a particular installation. If
this equipment does cause harmful interference
       
      
on, the user is encouraged to try to correct the
       
measures:
       
(1) this device may not cause interference, and
(2) this device must accept any interference,
including interference that may cause
undesired operation of the device.
—Reorient or relocate the receiving antenna.
      
receiver.
—Connect the equipment into an outlet on a circuit
different from that to which the receiver is
connected.
       
technician for help.
      -
  
      
    
   
       
      
compliance could void the user’s authority to
operate the equipment.

4
Your decision to own this McIntosh MHA50
       
top among discriminating music listeners. You
       
       
      
        
          
the features and functions of your new McIntosh.
Thank You
Please Take A Moment
      
       
      
        
information:
 
Purchase Date:
Dealer Name:
Technical Assistance
         -
tosh product, contact your McIntosh Dealer who
is familiar with your McIntosh equipment and any
         
you or your Dealer wish additional help concern-
       
assistance for all McIntosh products at:
  
  
   
Phone: [phone]
 
Customer Service
If it is determined that your McIntosh product is
in need of repair, you can return it to your Dealer.
        
Service Department. For assistance on factory
repair return procedure, contact the McIntosh
Service Department at:
  
  
   
Phone: [phone]
 

5
Table of Contents
Safety Instructions .................................................. 2
Lithium Battery....................................................... 2
Disposal Instructions .............................................. 2
FCC Information ..................................................... 3
       .................. 4
     ......... 4
  ..................................................... 5
General Information ............................................... 2
  ...........................................2 - 8
Introduction............................................................. 9
Performance Features ............................................. 9
Rear Panel Connections.......................................... 9
   ..................... 9
How to Operate the MHA50............................ 10-11
Specifications........................................................ 12
  ............................................. 12
1. For additional connection information, refer to
the owner’s manual(s) for any component(s)
     

      
designed for decoding 2-channel PCM (Pulse
Code Modulation) and DSD (Digital Stream-
Digital) Digital Audio Signals.
  Portable Decoding Amplier is designed to
work with Apple and Android mobile devices.
It will also work with computers with USB (2.0
compatible) Connectors.
        
supplied AC/DC Power Adapter, Plug Adapt-
      
      
Department:
AC/DC Power Adapter 310584SP
European Plug Adapter 310585SP
General Information
United Kingdom Plug Adapter 310586SP
Australia Plug Adapter 310587SP
      
    
     
     
Leather Case 310593SP
      
the MHA50 is in compliance with directive
2014/53/EU.
Note: The declaration of conformity may be consulted
at http://www.mcintoshlabs.com/us/products/
Pages/Manuals.aspx.
Frequencies/power 2402-2480Mhz 3.1dBm
6. When discarding the unit, comply with local
rules or regulations.
     
    
latest information on the MHA50 and other
McIntosh Products.

6
Introduction
      
      
     -
er section of the MHA50 will drive Headphones or
      
     
Circuitry provides a very high level of accurate
   ® Circuitry
restores the directionality component of the spatial
     
listening.
    
     
       
®       
Performance Features
     
       
to Analog Converter Circuitry
  
      
     
  
 ® 
    
 ® )    
    restores the
directionality component of the spatial sound stage
    
   
     
       
USB connector for many Android, Windows OS and
Mac OS Devices, providing a Digital Input Signal
       
  
     
       -
     
  
      
       
time.
     
       
operational controls and an indicator to display
operation mode.

7
MHA50 Connections
  
      
with a 3.5mm stereo mini phone plug for listening
  
iOS USB A Input Connector for
Digital Audio Signal coming from
     
Multi-USB 2.0 Micro Input Connection for the Digital Audio Signal coming from devices
           
            
allows connection to Computers using Windows, MAC Computer using Apple’s OS or
         
Connection of the AC/DC Power Adapter AC/DC Power Adapter
provides recharging
  
 
Amplifier
      
   
    
Power Adapter

8
   -
vate the MHA50 Bluetooth receiver
circuity and process the Digital
Audio Signal from the Bluetooth
Wireless Signal
  
  
Digital Audio Input Selector Switch to choose the iOS USB, or Multi-USB Input Wired
             
           
GAIN Switch has a Low or
High Setting to match-up
with the Headphones/
  
Impedance characteristics
    
settings allows for activation
of the McIntosh Crossfeed
Director Circuitry
MHA50 Switches, Touch Screen Controls and Indicator
  
   -
  
listening level
 
  
Screen Control
Operation Mode
LED Indicator

9
How to Operate the MHA50
Operation with iOS Apple Device
       -
  
       
Decoding Amplifier and the iOS Apple
     
       
       
the MHA50.
3. Place the Input Selector Switch on the
MHA50 to the iOS Position.
      
will illuminate GREEN. It will Automatically
      
      
Device startup procedures including selecting
 
       
   
Operation Mode LED Indicator
Color Continuous
Illumination
Flashing
Illumination Operation
White 3When the MHA50 is connected to the AC/DC Power Adapter and Lithium
Battery is recharging.
White 3When the MHA50 is connected to the AC/DC Power Adapter and the
Lithium Battery is fully charged, it also indicates when the MHA50 is in
  
Green 3              
selected. and the iOS device or the Multi USB is connected to the MHA50.
Green 3When the MHA50 Multi USB Input is connected to a Device for listening
and is charging the MHA50 at the same time. When fully charged, the LED
   
Blue 3             
then Bluetooth is activated.
Red 3         permanent
hearing impairment or loss     

10
7. Use your finger tip to trace part of the Silver
      
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.
        
        
      
Mode LED Indicator changes to White in
      
will resume listening with the LED Indicator
     
Operation with iOS Apple Device, con’t Operation with Android Device
       -
  
       
     
Device if they are ON.
      
      -
tor on the MHA50.
3. Place the Input Selector Switch on the
MHA50 to the Multi Position.
      
will illuminate GREEN.
      
startup procedures including selecting music

       
   
7. Use your finger tip to trace part of the Silver
      
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.
        
        
      
      
      
will resume listening with the LED Indicator
     

11
How to Operate the MHA50
Bluetooth Operation
      
     
Bluetooth wireless connection:
       
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.
      
will illuminate GREEN.
     -
      
LED Indicator Color will change from Green
to BLUE.
       
      
    
       

      
procedures including selecting music

       
  
8. Use your finger tip to trace part of the Silver
      
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.
        
        
      
      
      
will resume listening with the LED Indicator
     
Computer Operation
     
     
      
when the computer is connected to the MHA50
Multi-USB connector.
     
with PC Computers using Microsoft®, Windows
7 (SP1), Windows 8.1 and Windows 10. It is also
    
using OS-10.6.8 or later.
When using a PC Computer with Windows,
a special McIntosh MHA50 USB Audio Software
        
      
      

12
Computer Operation, con’t
Port on the computer so the Windows driver can
 
Note: If an Apple Macintosh computer is used
with the MHA50, no additional driver
is required.
     
       -
  
http://www.mcintoshlabs.com/us/Support/
Pages/Manuals.aspx
   
    
     
then select “McIntosh MHA50 USB Audio Win-
       
       
McIntosh MHA50 Driver:
     
Audio Windows driver for use with
McIntosh Products with an Multi
USB-Digital Audio Input.

1. A PC Computer with a functioning
USB Port.
2. Windows 7 (SP1 or greater),
Windows 8 (8.1) or Windows 10
Operating System.
I  
       
  
1.
Connect the Computer USB Port Connector
to the Multi-USB Connector on the MHA50.
2. Place the Input Selector Switch on the
MHA50 to the Multi-USB Position.
     -
dows MHA50 Multi-USB Driver Software

4. Run “XMOS-Stereo-USB-Audio-Class2-
Driver-2014%28v2.19%29.exe”. Refer to
figures 1 thru 7.
5. After reading the License Agreement in the
    I accept the
terms of the License Agreement””   
       
the Next     
Figure 1

13
    
    
       
     
Note: When the MHA50 is not connected to
your computer, the previous default
Audio Device will be selected.
How to Operate the MHA50
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
  
     
Amplifier to function via the Computer USB Con-
       
       
Figure 8

14
How to Operate the MHA50
With the Windows Driver now installed, perform
the following the steps:
         
MHA50 is in the Multi-USB Position .
      
will illuminate GREEN.
3. Select the desired computer application to
  
       
 
5. Use your finger tip to trace part of the Silver
      
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.
        
        
      
      
      
will resume listening with the LED Indicator
     
Computer Operation, con’t
Recharging the MHA50 Battery
         
recharge the MHA50
Lithium Battery. Perform the
following steps:
1. Place the MHA50 Digital Audio Input Selec-
tor Switch in the Off Position.
       
MHA50 Inputs (iOS USB or Multi-USB)
     
      
the supplied AC/DC Power Adapter to the
MHA50
Multi-USB
Input Con-
nector and
 
AC Outlet.
Note: The MHA50 may also be recharged when it is
connected to a Computer USB Port. Refer to
the Computer Owner’s Manual for additional
information.
4. During the recharging of the MHA50 the
Front Panel
Operation Mode LED Indicator
      
       
 
       
       
         
   

15
Specifications
   
8 - 600 ohms
  
 
 
     
    
   
   
     
DSD - DSD64, DSD128
   

   
 
   
  
Width is 2.7 inches (7.0cm)
Height is 6.1 inches (15.5cm)
Depth is 0.6 inches (1.4cm)

         
shipping carton
 
Width is 7.2 inches (18.3cm)
Depth is 3.8 inches (9.8cm)
Height is 2.7 inches (6.8cm)

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 Laboratory, Inc.
2 Chambers Street
Binghamton, NY 13903
www.mcintoshlabs.com
McIntosh Part No. 04179300