AC VOLTAGE, INSTALLATION AND RACK MOUNTING
3
115v - 230v AC Voltage Selector Switch
This switch is found on the chassis rear panel. The 115V position of this switch is correct for
North America; most other regions require setting it to 230V. Make sure the 115/230V switch
is set for the correct AC line (mains) voltage before you connect the Model 2250’s power cord
and before you install it. The unit may be seriously damaged if this switch is set incorrectly.
Installation and Ventilation Requirements
Install your Model 2250 away from heat sources such as heating ducts, radiators, or other heat
producing components. Always position it horizontally.
Observe the following ventilation guidelines when installing the Model 2250 in an equipment
rack or any other enclosed space:
You should never install the Model 2250 in an unventilated equipment cabinet or compartment
because hot air will not exhaust adequately to prevent overheating. Air won’t often circulate
adequately in a cabinet or enclosure whose front and back sides are open; pockets of intense
heat can still develop around any heat-producing equipment. Therefore, a ventilation fan is high-
ly recommended. Allow a few inches of empty space on each side and above the unit and try
to avoid crowding or stacking the Model 2250 tightly between other components. A ventilation
fan is also recommended where other equipment must be mounted close to the Model 2250.
Do not place the unit on carpeting or any other material that could obstruct air flow into the
ventilation holes in its chassis bottom.
Rack Mounting
The Model 2250 front panel occupies only three rack spaces in a standard 19
”
equipment rack.
For rack mounting, you’ll need to use the Parasound RMK33 rack mounting kit (purchased
separately). We recommend that you use the 8 insulated shoulder washers with the four
mounting bolts which are included with the RMK33. Position these washers on both sides
so they “sandwich” the front panel before the mounting bolts are screwed into the rack rail.
This will eliminate metal-to-metal contact between the Model 2250 chassis, the equipment
rack, and the other components in the rack.
Manual
Audio Sens
Max Min
12V Trigger
Audio
Auto Turn On
12V
Ground
Lift Norm
In
Loop
CAUTION
To Prevent Electric Shock, Do Not
Remove Cover. No User-Serviceable
Parts Inside. Refer Servicing To
Qualified Service Personnel.
WARNING
To Prevent Fire Or
Shock Hazard, Do
Not Expose This Unit
To Rain Or Moisture.
2250 Two Channel Amplifier
Parasound Products, Inc.
San Francisco, CA U S A
Mono
Stereo
20Hz 40Hz
Flat
Bridging
High Pass Filter
Level
Input
Loop
R
Mono
L
R
L
Mono
THX
Ref
THX
Ref
Speaker Pair A
L
R
Mono
Speaker Pair B
L
R
Mono
Power Consumption: 1000W
THX and Ultra2 are trademarks of THX Ltd.
which may be registered in some jurisdictions.
All right reserved.
4-8
Ohms
2-3
Ohms
230V
50Hz
115V
60Hz
AC
Voltage
Load
Impedance
AC 115V/60Hz
AC 230V/50Hz
Protective Cover
