For further details contact Music Hall LLC:
108 Station Road
Great Neck, NY 11023
T: 516.487.3663
F: 516.773.3891
W: http://www.musichallaudio.com
a 50.2
integrated amplifier
user manual
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http://www.musichallaudio.com
integrated amplifier
Congratulations On Your Purchase
You have selected a state-of-the-art integrated amplifier. Each component chosen for
assembly in the construction of the music hall a50.2 was selected to provide you with superior
performance and the highest level of sound reproduction available today. We know of no
integrated amplifier that costs as much to produce that sells for so little. Please take a few
moments to read over the instruction manual to ensure that you get the best performance
from your unit and years of trouble-free service.
SAFETY GUIDELINES
This product is designed and manufactured to strict quality and safety standards. However,
you should be aware of the following installation and operation precautions:
1. Take heed of warnings and instructions
Read all the instructions before connecting or operating the unit.
Keep this manual so you can refer to these safety instructions. Heed all warnings and safety
information in these instructions and on the unit.
2. Water and Moisture
To reduce the risk of fire or electric shock, do not expose the unit to moisture or water. If the
unit is exposed to moisture, immediately disconnect the power cord from the wall. Take the
unit to an authorized music hall service center for inspection. Do not touch the unit, power
cord, or plug with wet hands.
3. Object or liquid entry
Do not allow foreign objects or liquids into the unit. If this happens, immediately disconnect
the power cord from the wall and take the unit to an authorized music hall service center for
inspection.
4. Ventilation
You must allow 2 inches (5 cm.) of unobstructed clearance around the unit. Do not place the
unit on a bed, sofa, rug, or similar surface that could block ventilation from the bottom. Do not
stack another component on top of the amplifier. If the component is placed in a bookcase or
cabinet, it must be ventilated to allow proper cooling.
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integrated amplifier
5. Heat
Keep the unit away from naked flames, radiators, heat registers, stoves, or any other heatproducing appliances (including amplifiers).
6. Climate
The unit has been designed for use in moderate climates. Do not attempt to use below 41
degrees Fahrenheit (5 degrees Celsius) or above 95 degrees Fahrenheit (35 degrees Celsius).
7. Rack and Stands
Place the unit on a fixed, level surface strong enough to support its weight. Do not place it on a
moveable cart that could tip over. We recommend only using stands approved for use with
audio equipment.
8. Cleaning
Unplug the unit from the mains supply before cleaning. The case should normally require only
a wipe with a soft lint-free cloth.
9. Power Sources
Only connect the unit to a power supply of the type and voltage described in the operating
instructions or specified on the rear panel of the unit.
10. Power cord protection
Connect the unit to the power outlet only with the cord supplied. Do not modify the supplied
cable in any way. Do not attempt to defeat grounding and/or polarization provisions. Do not
use extension cords. Do not route the power cord where it will be crushed, pinched, bent at
severe angles, exposed to heat, or damaged in any way.
11. Non-use periods
If the unit is to be left unused for a long period of time, the power cord should be unplugged
from the wall outlet.
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integrated amplifier
12. Damage Requiring Service
Stop using the unit immediately and have it inspected by an authorized music hall service
center whenever:
1.
2.
3.
4.
5.
6.
The power supply cord or plug has been damaged.
Liquid has been spilled into the unit.
The unit has been exposed to rain.
The unit does not operate properly.
The unit has been dropped or damaged.
Smoke or any unusual smell is detected from the unit.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER.
NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
Indicates that the user of this unit must understand important operation and
maintenance instructions.
Indicates high-voltage power inside the unit, which will cause electric shock.
Getting Started
Thank you for purchasing the music hall a50.2. The a50.2 is a classic two-channel integrated
amplifier designed for the music lover. We chose a select group of technologically advanced
components to create this powerful 90 watt/channel integrated amplifier. When used in a topend audio system, your music hall integrated amplifier will provide years of enjoyment. The
a50.2 is the perfect complement to music hall's cd25.2 compact disc player.
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integrated amplifier
A Few Precautions
Please read this manual carefully. In addition to installation and operating instructions, it
provides valuable information that will help you get optimum performance from your system.
Please contact your authorized music hall dealer for answers to your questions. In addition, all
of us at music hall welcome your questions and comments. Save the shipping carton and all
enclosed packing material for future use. Shipping or moving the unit in anything other than
the original packing material may result in severe damage that is not covered by the warranty.
Be sure to keep the original sales receipt. It is your best record of the date of purchase, which
you will need in the event warranty service is required.
Placement
Use common sense when placing the a50.2. Always place it on a firm, level surface. Make
sure that the shelf or cabinet can support the weight. Ensure that there is adequate ventilation
around all sides of the unit. Avoid placing the a50.2 where it may be subject to excessive heat,
such as near a heat register. Do not place anything on top of it. For best performance, avoid
placing the a50.2 where it may be subject to vibration, such as near a speaker.
Connecting Source Components to the a50.2
Left Speaker
Right Speaker
SPEAKER OUT
RIGHT
GND
PHONO
CD
TUNER
AUX
TAPE IN
REC OUT
AC IN
VOLTAGE SELECTOR
R
MC
~230V
MM
~115V
L
CARTRIDGE
MODEL: a 50.2
SERIAL NO.:
LEFT
PRE OUT
FUSE: T5AL/~250V
Designed and developed in the USA
The a50.2 has 4 analog inputs, one tape loop, and one phono input.
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integrated amplifier
Connect your source components to the appropriate inputs on back of the a50.2. Pay careful
attention to match the right (red) and left (black) outputs from your source components to the
right (red) and left (black) inputs on the a50.2. Connect to the ipod input on the front using a
3.5mm stereo mini-plug.
When connecting a turntable to the phono input, connect the RCA's as described above.
Connect the turntable's ground wire to the ground screw (GND) and move the cartridge switch
to the correct position; MM for moving-magnet cartridges or MC for moving-coil. If unsure of
the correct cartridge setting consult the literature accompanying your cartridge or your dealer.
The cartridge switch sets the correct loading and level of amplification for the cartridge. Do
not flip the cartridge switch with the a50.2 powered on.
Pre Out
This output is always active and can be used to connect the a50.2 to a subwoofer or additional
power amplifier. Simply connect this output to the input on your subwoofer or amplifier.
Speaker Outputs
To avoid damage to the a50.2, make sure it is NOT plugged into an AC outlet while connecting
up or disconnecting speaker wire to the speaker outputs. The a50.2 has one pair of speaker
outputs on the back labeled SPEAKER OUT; RIGHT and LEFT. Using a suitable speaker wire,
connect the right speaker to the RIGHT SPEAKER OUT and the left speaker to the LEFT
SPEAKER OUT. Pay careful attention to match the positive (red) and negative (black)
terminals on your speakers to the positive (red) and negative (black) terminals on back of the
a50.2.
Connecting to the Mains - Plugging In
Check that the Power Switch on front of the a50.2 is in the off position. Push the plug (IEC line
socket) of the power cable supplied with the a50.2 into the socket (AC IN) on back of the unit.
Make sure it is pressed in firmly. Plug the other end of the power cable into an AC wall outlet.
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integrated amplifier
Using the a50.2
input
volume
rec. monitor
ipod
phones
on/off
a 50.2 integrated amplifier
power - on/off
Push this button on the front of the a50.2 to turn the unit on. When the a50.2 is on the display
will show the input that is currently selected and the volume level. Pushing it again will switch
the a50.2 off.
ipod
Use this input for an iPod, mp3 player, or any device with a mini-plug output.
phones
Use this input for headphones.
automatically muted.
When headphones are in use the speaker output is
input knob
Turn the input knob to the right or left to select the desired input.
rec. monitor
Push this button to monitor your tape deck or to listen to the source plugged into the tape input.
volume
Turn the volume knob to the right to adjust the volume up. Turn the knob toward the left to
decrease volume. The volume control has 80 different settings from MIN (00) to MAX (80).
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integrated amplifier
Using the Remote Control
Note: Install the two AAA batteries, if they haven't been factory installed. To
install/change the batteries; slide the battery cover on the back of the remote
control, off. Install/change the batteries, replace the battery cover and begin
use.
The supplied remote control is a standard system remote and therefore not all
buttons will function with the a50.2. The remote controls the a50.2, cd25.2,
and t25.2. For information on using the remote control with the cd25.2 or
t25.2 please refer to the appropriate manual.
ir25.2
OPEN/
CLOSE
CD
TUNER
INPUT
2
3
4
5
6
7
8
9
0
SCAN
REP /
/ BAND
MUTING
1
TUNING
PROG / MEM
PRESET
RANDOM
Do not place anything in front of the display area of the unit, or the remote
control may not work.
DIMMER
VOLUME
DISPLAY
power
This button does not function with the a50.2 or cd25.2.
input
Allows you to toggle through the inputs.
muting
Mutes the amp's output. The display will read MUTING when the control is active. Press the
button again and muting is turned off.
display
Dims the display. Press the display button repeatedly to toggle through the settings.
volume
Pushing volume
Increases the volume. Pushing volume
Holding the button increases or decreases the volume rapidly.
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decreases the volume.
integrated amplifier
Technical Specification
Amplifier
Maximal power output (no distortion): ............................................................... 90W/8
Minimal impedance: ................................................................................................. 2
S/N: ................................................................................................................
101dB
Frequency Response: .................................................................. 10Hz - 60KHz
0.5dB
Distortion (THD+N): ............................................................................... <0.002 (1KHz)
Input Sensitivity: ............................................................................... 230mV CD-IN/47K
Crosstalk Attenuation: ................................................................................... 73dB/1KHz
Phones Output Level: ................................................................................. 280mW/47
Rec. Output Level: .................................................................................... 100mV/600
Phono MM: ................................................................................................... 1KHz/5mV
Phono-MC: ................................................................................................. 1KHz/0.5mV
Power Consumption: .......................................................................................... <300W
Power supply: ........................................................................ AC115V/50Hz-60Hz/200W
Physical
Dimensions: .............................................................................. W17" x D14.5" x H3.94"
Weight: .................................................................................................. 22.7 lbs. pkgd.
Supplied Accessories: ............................... Mains Lead, Remote Control, 2 x AAA Batteries
USA - This product complies with FCC requirements.
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integrated amplifier
Guarantee
This entitles you to have the music hall a50.2 repaired or replaced, at our discretion, free of
charge for one year after purchase, at any authorized music hall dealer, provided the unit was
purchased from an authorized dealer. Your original sales receipt is used as proof of purchase
date. Music hall can take no responsibility for defects arising from accident, misuse, abuse,
wear and tear, neglect or through unauthorized repair and or adjustment. Neither can music
hall accept responsibility for damage or loss occurring during transit to or from the person
claiming under the guarantee.
Warranty
Your music hall a50.2 warranty covers parts and labor costs for one year from the purchase
date. After one year, you must pay for both parts and labor costs. The warranty does not
cover transportation costs at any time.
Claims under guarantee
The unit should be packed in the original packing and returned to the dealer from whom it was
purchased, or to an authorized music hall service center. It should be sent by a reputable
carrier, carriage prepaid. Do not send the unit via USPS (United States Postal Service). No
responsibility can be accepted for the unit while in transit to the dealer, customer, or authorized
service agent, therefore, customers are advised to insure the unit against loss, damage, or
theft while in transit.
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