Sound Performance Lab 2048 - Manual (Page 13)

13
Power Supply
Specifications
Built around a toroidal transformer, the power supply allows for a minimal
electromagnetic field with no hum or mechanical noise. The power supply's
output side is filtered by an RC circuit to extract noise and hums caused by
your power service. 6000µf capacitors smooth out the positive and negative
half waves.
The supply voltage can be set to 230 V/50 Hz or 115 V/60 Hz. Check your
country’s power requirements for the appropriate setting. An AC power cord
is included to feed the IEC-spec, 3-prong connector. Transformer, AC cord
and IEC-receptacle are VDE, UL and CSA approved. The main fuse is rated at
315mA.
Chassis ground and AC ground can be physically disconnected by the
“Ground Lift” switch (GND LIFT). This helps to eliminate hums.
Input & Output
Instrumentation amplifier, electronically balanced (differential),
transformerless
Nominal input level ......................................... +6 dB
Input impedance .............................................. = 22 kOhms
Output impedance........................................... < 600 Ohms
Max. input level ................................................. +20 dBu
Max. output level .............................................. +20 dBu
Minimum load ohms....................................... 600 Ohms
Relay Hard Bypass, Power Fail Safety
Power Supply
Torroidal transformer ..................................... 15 VA
Fuse ....................................................................... 315 mA (slow blow)
Ground-Lift switch,Voltage selector
Dimensions
Housing ............................................................... Standard EIA 19"/1U,
482 x 44 x 237 mm
Weight .................................................................. 3,4 kg
Note: 0 dBu = 0.775 V
Subject to change without notice.