StudioPro PhonoStage Manual
Angle Audio StudioPro Phono Stage – Owner’s Manual
January 2017
CONTENTS OF THE BOX
Thank you for purchasing this Audiophile Phono Stage Preamplifier.
Please make sure you have received all of the following components in the package:
- The preamplifier module
- DC Power supply
- Load Plugs (if applicable)
- This manual
CONNECTING TO YOUR HIFI
WHEN CONNECTING YOUR PREAMPLIFIER, TAKE GREAT CARE NOT TO CAUSE DAMAGE.
DO NOT FORCE YOUR CONNECTORS INTO THE UNITS SOCKETS.
BEFORE CONNECTING OR DISCONNECTING THE PREAMP ENSURE THAT IT IS DISCONNECTED FROM
ANY POWER SOURCE.
Connections should be as follows:
- The right (R) and left (L) phono inputs should be connected to your turntable’s respective outputs.
- The right (R) and left (L) outputs should be connected to your HiFi amplifier’s or other audio
equipment’s inputs.
- The turntable signal earth lead should be connected to the earth post.
- If you have a unit with load plugs then insert the load plugs of your choice into the sockets marked
‘Load’.
- CHECK THAT YOUR AMPLIFIER IS EITHER TURNED OFF OR HAS ITS VOLUME CONTROL SET TO
MINIMUM
- The power supply should then be connected to the phono stage preamp.
USING THE PREAMP
Once the preamp is connected, as previously described, using it is just a matter of switching the
phono stage unit on: the front panel power (PWR) LED should light RED. Note: The front panel green
charge (CHG) LED indicates when mains power is connected.
You will also need to switch on and select the appropriate input on your HiFi amplifier, and you’re
off. Enjoy! NOTE – We always recommend you switch on your phono stage before your amplifier.
Angle Audio StudioPro Phono Stage – Owner’s Manual
January 2017
Angle Audio StudioPro Phono Stage – Owner’s Manual
January 2017
VIRTUAL BATTERY FUNTION (IF APPLICABLE)
The status of the VB function is shown by a front panel PWR and CHG LEDs:
- CHG LED flashing = charging, (Only when unit is switched off)
- CHG LED steady = trickle charge only.
- CHG LED off = mains power disconnected.
- PWR LED off – unit off
- PWR LED on (RED) – unit on battery power
- PWR LED on (AMBER) – unit on mains power
The front panel switch positions are:
- Up ‘Charge’ = Charge battery, phono stage off.
- Down ‘On’ = Phono stage On (PWR LED on), battery trickle charge.
Whenever the unit is switched to ‘On’ the battery will be held in trickle charge mode: this means
that it is possible to flatten the battery if the unit is left in the ‘On’ position for over 24 hours (typical,
subject to battery charge level/condition). If the unit detects that the battery is low it will
automatically switch to mains power (PWR LED goes amber).
In ‘Charge’ mode the unit will select trickle/fast charge depending on battery status. A very flat
battery may be held in trickle mode until it has enough charge to accept fast charge operation.
NOTE: This unit includes a high capacity NiMh battery, the battery is always on trickle charge when
power is connected. NiMh batteries are specified to be safe when left on charge but it is not
recommended to leave this unit permanently connected to the power.
Please NOTE: This unit cannot be used without the mains power being switched on and connected to
the unit.
SPECIFICATIONS
MM/HMC
Nominal Input sensitivity:
Input range:
Input resistance:
Maximum input:
Nominal output:
Gain:
Noise (ein):
Distortion:
RIAA accuracy:
Channel separation:
3 mV rms
1.5mV - 10mV
47k & 100pF
60 mV rms
570 mV rms
45 dB (190)
<0.07uV
0.01%
<0.5 dB
82 dB
Angle Audio StudioPro Phono Stage – Owner’s Manual
January 2017
MC
Nominal Input sensitivity:
Input range:
Input resistance:
Maximum input:
Nominal output:
Gain:
Noise (ein):
Distortion:
RIAA accuracy:
Channel separation:
0.3 mV rms
0.15mV – 2mV
470R & 100pF
3.5 mV rms
363 mV rms
61 dB (1122)
<0.07uV
0.01%
<0.5 dB
82 dB
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