2
1] The Mains Input
As a safety precaution your MA-2.2B may have shipped without a mains fuse fitted.
Before use, you must select the correct mains voltage for your local supply on the rear
panel and fit the correct mains fuse type into the fuse draw for that voltage.
Setting the Voltage Selector
You will need a flat blade screwdriver.
If your mains voltage is 110V to 120V set the rear panel voltage selector to 120V.
If your mains voltage is 220V to 240V set the rear panel voltage selector to 240V.
POWERING UP THE MA 2.2 WITH THE WRONG VOLTAGE SETTING MAY CAUSE SEVERE
INTERNAL DAMAGE !!
Selecting the Correct Fuse
In the supplied accessories bag you will find;
2x 0.5 Amp slow blow fuses, use for 220V to 240V.
2x 1.0 Amp slow blow fuses, use for 110V to 120V.
Slide out the fuse draw above the IEC power inlet and insert the appropriate fuse into
the carrier clip. Note there is also a position in the carrier for a spare fuse (the square
tube bit) and we suggest you store the second supplied appropriate fuse here.
Please Note
Fitting the wrong fuse may result in the fuse blowing on power up or inadequate
protection. Fitting fast blow type fuses may also result in the fuse blowing on power up.
The MA-2.2B may have been shipped with the mains set up to match your country but it
pays to check.
2] Rear Panel Connections
MIC IN
The MA-2.2B is designed as a balanced input microphone amplifier. The connection of
unbalanced sources is not recommended. The XLR female style input connector is wired
as follows;
Pin 1 = Signal Ground (common)
Pin 2 = Signal Hot (+)
Pin 3 = Signal Cold (-)