MUSIC HALL pa2.2 User manual

music hall
pa2.2
INSTRUCTION MANUAL
music hall
http://www.musichallaudio.com

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CONGRATULATIONS ON YOUR PURCHASE
You have selected an exceptional phono preamplifier. Each component used in
the construction of the pa2.2 was selected to provide you with superior
performance and the highest level of sound reproduction available today. We
know of no phono preamplifier that costs as much to produce yet sells for so little.
The precise and elegant design of this phono preamplifier makes it easy to install
and operate. Please take a few moments to read over the operating instructions
to ensure that you get the best performance from your preamplifier 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 preamplifier.
Keep this manual so you can refer to these safety instructions.
2. Water and Moisture
To reduce the risk of fire or electric shock, do not expose the phono preamplifier
to moisture or water. If the phono preamplifier is exposed to moisture,
immediately disconnect the power cord from the wall. Take the preamplifier to an
authorized music hall service center for inspection. Do not touch the phono
preamplifier, 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. Heat
Keep the phono preamplifier away from naked flames, radiators, heat registers,
stoves, or any other heat-producing appliances (including amplifiers).
5. Climate
The phono preamplifier 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).
6. Racks and Stands
Place the phono preamplifier 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.

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7. Cleaning
A soft towel can be used.
8. Power Sources
Connect the phono preamplifier only to a power supply of the type and voltage
described in the operating instructions or specified on the rear panel of the unit.
9. Power-cord protection
Connect the phono preamplifier to the power outlet only with the supplied power
supply. Do not modify the supplied power supply 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.
10.Non-use periods
If the preamplifier is to be left unused for a long period of time, the power supply
should be unplugged from the wall outlet.
11.Damage Requiring Service
Stop using the phono preamplifier immediately and have it inspected by an
authorized Music Hall service center whenever:
1. The power supply cord or plug has been damaged.
2. The phono preamplifier has been exposed to rain.
3. The phono preamplifier does not operate properly.
4. The phono preamplifier has been dropped or damaged.
5. Smoke or any unusual smell is detected from the phono preamplifier.
GETTING STARTED
Thank you for purchasing the Music Hall pa2.2 usb phono preamplifier. This
manual provides valuable information that will help you get optimum performance
from your system. Please contact your authorized Music Hall dealer for any
additional clarifications you may require. Save the shipping carton and all
enclosed packing material for future use. Shipping or moving the pa2.2 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.

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SET-UP
The pa2.2 may be used in either MM (moving magnet) or MC (moving coil) mode
according to the construction principle of the phono cartridge to be used. Before
setting the mm/mc switch, the unit must be disconnected from the power supply
and amplifier. Once disconnected choose the appropriate setting mm/mc for the
cartridge you’re using.
To find out which type of cartridge you have, please consult the literature
accompanying your cartridge. If in doubt please consult your dealer. A switch on
the back of the pa2.2 sets the correct loading and level of amplification for the
cartridge. If you are using an ultra-low output moving-coil cartridge you can add
an additional 6 dB of gain by switching the mc gain switch on the back to 26dB.
If you’re using a standard low-output moving coil cartridge best results will be
obtained with the 20dB gain setting.
PA2.2 silk-screen
black panel
print panton 7555c
FRONT PANEL ARTWORK
REAR PANEL ARTWORK
Connecting the Turntable
Connect the turntable signal lead to either the mm or mc input on the pa2.2
depending on the type of cartridge your using. Take care to connect the left and
right channels correctly. The right channel is marked with red the left channel is
market with white. The ground wire of the turntable lead should be connected to
the ground screw.
Connecting a Line Input
You can connect any standard line output component (cd player, tape deck,
tuner, etc.) to the line in input . This will allow you to listen to a standard line
signal through the pa2.2 or convert the analog line signal to a digital signal via
the usb out for recording on a computer. To listen to the output of the line in the
phono/line switch on the front panel must be switched to line.
Connection to the Amplifier
Locate the line out connectors on back of the pa2.2. You have a choice
between variable or fixed output. The variable output will allow you to adjust
the volume level of the output with the volume control on the front panel. Please
note: the volume control also controls the volume of the headphone output.

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Connect the line out (fixed or variable) of the pa2.2 to a line input (i.e. AUX,
CD, TUNER, etc.) on your amplifier. Take care to connect the left and right
channels correctly. Make all connections while the phono box is disconnected
from the power supply.
*DO NOT CONNECT THE PA2.2 TO A PHONO INPUT.*
Mains Connection
The pa2.2 is supplied with a high efficiency multi-region regulated power supply.
It provides a stable output from any mains voltage from 100 – 240V. Connect the
low voltage plug from the power supply to the dc 24V socket on the pa2.2 before
connecting to the mains. You may need to snap on a different power plug
adaptor for your country. Plug-in and enjoy.
Connecting to a Computer
Connect to your Windows PC or Apple Mac computer via the usb out on back
of the pa2.2. A usb-B (pa2.2 end) to usb-A (computer end) cable is required for
this connection. Connect the pa2.2 to your computer when both products are
powered on. Your computer will recognize the pa2.2 and download any
necessary drivers.
You can select the pa2.2 on a Windows PC under Start > Settings > Sound
Apple Mac computer under System Preferences > Sound > Input
For recording to your computer with the pa2.2 we recommend the use of
Audacity freeware. The Audacity recorder and audio editor for your computer
can be downloaded and set-up at: http://www.audacityteam.org.
Help, FAQ, and Tutorials can also be found on their site.
Front Panel Controls

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on/off
Use this switch to power the unit on and off.
stereo/mono
Switch between stereo or mono audio output. The sound of mono records is
significantly improved by toggling this switch to mono.
phase/invert
Switches the output signal between absolute polarity phase (0°) and reversed
polarity invert (180°). The majority of recordings are in phase, but some are
recorded inverted phase or out-of-phase. The music will sound more full and rich
when matched to the correct phase.
phono/line
Switches the audio output between phono and line inputs.
headphones
¼’ output for headphones.
volume
Turn to adjust the headphones and variable output volume level.

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TECHNICAL SPECIFICATIONS:
•MM input impedance: 47 kohms+ 220 pF
•MC input impedance: 100 ohms + 1 pF
•Analog line-level input impedance: 47 kohms
•MM gain at 1khz: 39 dB
•MC gain at 1khz: 59 dB (20 dB gain selected) / 65 dB (26 dB gain selected)
•MM input sensitivity for 316 mV output: 3.3 mV
•MC input sensitivity for 316 mV output: 0.4 mV (20 dB gain selected) / 0.2 mV (26 dB
gain selected)
•MM signal-to-noise ratio unweighted (with cartridge connected): 70 dB
•MC signal-to-noise ratio unweighted (with cartridge connected): 75 dB (20 dB gain) / 70
dB (26 dB gain)
•Analog Line-level input Signal-to-noise ratio: 120 dB
•MM Input overload level at 20Hz/1kHz/20kHz: 8/71/650 mV
•MC Input overload level at 20Hz/1kHz/20kHz (20 dB gain selected): 0.95/48/450 mV
•MC Input overload level at 20Hz/1kHz/20kHz (26 dB gain selected): 0.45/24/225 mV
•MM Total Harmonic Distortion + Noise (10 mV in): <0.01%
•MC Total Harmonic Distortion + Noise (1 mV in and 20 dB gain selected): <0.05%
•MC Total Harmonic Distortion + Noise (1 mV in and 26 dB gain selected): <0.05%
•Analogue line-level input total harmonic distortion + noise: <0.01%
•RIAA curve accuracy: +/- 0.3 dB
•MM Crosstalk: 65 dB
•MC Crosstalk: 65 dB (20 dB gain) / 60 dB (26 dB gain)
•Line-level input crosstalk: 63 dB
•Fixed line-level output impedance: 270 ohms
•Variable line-level output impedance: 270 ohms
•Headphone stage output impedance: 2 ohms
•Headphone stage maximum output level: 6.8 V
•Headphone stage total harmonic distortion + noise: <0.02%
•USB output: maximum 24 bit linear PCM
•USB output sampling frequency: maximum 96 kHz
•Power Supply Rejection Ratio: 80 dB
•Power supply: external 24VDC with multi-region plug adaptors
•Power consumption without signal: 2.9 W
•Unit dimensions (W x H x D): 6.3 x 2.0 x 6.73 in. (159 x 51 x 171 mm)
•Unit weight: 2lbs. (900g)
Input Connections: 3 pairs of RCA sockets (left/right) 1 x MM, 1 x MC, 1 x Line
Output Connections: 2 pair of RCA sockets (left/right) 1 x variable, 1x fixed
1 x headphone output 32 - 600Ω
A/D Converter: Wolfson WM 8786, Tenor TE7022L 24Bit Delta Sigma
Sampling Rates: 8, 16, 32, 44.1, 48, 96kHz
USB Output: USB 2.0,fully backward-compatible with USB 1.1
Operating Systems: Windows: WinXP/Win7/Win8/Win10
MAC: Mac OSX10.6.6 ~ OSX10.11
music hall reserves the right to make technical modifications

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TROUBLESHOOTING
Music Hall phono preamplifiers are manufactured to the highest standards and
undergo strict quality controls before leaving the factory. If, for some reason your
phono preamplifier is not working properly, please take a few moments to review
this list of potential causes.
NO SIGNAL IN ONE OR BOTH CHANNELS:
•The phono preamplifier is not connected to the mains power supply.
•No mains at the socket.
•No connection between the phono preamplifier and amplifier.
•Correct input not selected at amplifier.
•Poor contact or broken connection between the amplifier or turnable.
•Amplifier not switched on.
•Amplifier or speakers defective or muted.
•Cartridge not wired into the head shell.
•Loudspeakers not connected.
•The correct input line or phono is not selected for the source that’s
playing.
•The turntable is not connected to the selected input mm or mc.
LOUD HUM ON PHONO INPUT:
•No earth connection from cartridge, tonearm, or audio cable to amplifier.
•Ground loop.
•Phono preamplifier too close to one or both speakers.
DISTORTED SOUND FROM ONE OR BOTH CHANNELS:
•MM/MC switch on pa2.2 incorrectly set.
•Dust on the stylus.
•Needle or cantilever damaged.
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SERVICE
Should you encounter a problem that you cannot solve, please contact your
Music Hall dealer. Never return a phono preamplifier without authorization and
without safely disconnecting it and correctly packing it in the original packaging.
Repairs will only be made under warranty if the unit is returned correctly
packaged in its original box.
WARRANTY
This entitles you to have the Music Hall pa2.2 repaired free of charge, at our
discretion, for one year after the date of purchase, at any authorized Music Hall
service center, provided the unit was purchased from an authorized dealer. Your
original sales receipt is proof of purchase date. Music Hall takes no responsibility
for defects arising from accident, misuse, abuse, wear and tear, neglect or
unauthorized repair and/or adjustment. Music Hall cannot accept responsibility

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for damage or loss that occurs during transit. The warranty does not cover
transportation costs.
CLAIMS UNDER WARRANTY
The pa2.2 should be packed in the original packing and returned to the dealer
from whom it was purchased, or, upon authorization, to a Music Hall service
center. It should be sent by a reputable carrier, carriage prepaid. Do not send
the phono preamplifier via USPS (United States Postal Service). Since no
responsibility will be accepted for a unit in transit to the dealer, customer, or
authorized service agent, customers are advised to insure against loss, damage,
or theft.
FOR FURTHER INFORMATION CONTACT:
Music Hall
108 Station Road
Great Neck, NY 11023
Tel: [phone]
Fax: [phone]
http://www.musichallaudio.com

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