Instruction Manual
PMA-350H
www.roemtech.com
List of Contents
1. Plenum Rated Stereo
Mixer/Amplifier - 50 watts
2. Regulated 60 watt Power Supply
(Not Plenum Rated)
3. Universal 5’ Power Cord
(Not Plenum Rated)
4. Pair of Wire Nuts
5. Three Detachable Terminal Blocks
™
Typical Stereo
Wiring Diagram
Left
Front
Speaker
Left
Rear
Speaker
Right
Front
Speaker
Right
Rear
Speaker
(Power connections
are polarity
tolerant at amp.)
-/+
-/+
-/+
-/+
This setup provides true stereo
separation, for mono simply
move the “stereo/mono” switch
to the “mono” position.
To Power
Supply
2 Traditional
Screw Type
(
(
(
(
1 New Insulation
Displacement Type
P/A
SENSE
INPUT 2
3.5MM
3.5MM
STEREO
STEREO
INPUT 1
L R
RCA STEREO
www.roemtech.com
P/A
PMA-350H
AUX
SPEAKERS PWR
+ L - + R - +/- +/-
DUCK
LEVEL
MONO
ALL
STEREO
ALL
25V - 100V
Auto HummBuster
How it Works
Auto HummBuster
technology (patent pending) is a state of the art troubleshooting
system invented in the research labs of Roemtech outside of Dallas, Texas. Until now,
when there was an unwanted hum or buzz in an audio system, it required a technician to
come in and analyze the sound system. Typically, this required a modification of the
existing setup, sometimes leading to many more hours of work and untold expenses.
This sort of scenario is not uncommon. With Roemtech’s new Auto HummBuster
technology, unwanted noise issues can be resolved with the simple push of a button.
When the Auto HummBuster button is pushed, the PMA-350H’s internal circuitry
intelligently analyzes each incoming audio signal. It next determines which audio
source is guilty of generating the noise, then it safely and properly gets rid of it. Due to
sophisticated and proprietary circuitry pioneered by Roemtech, it does all of this while
leaving the original audio content pure and unaffected. The HummBuster feature
should be operated during a time when the source material has been muted or is not
being played but the sources have all been plugged in. It can then make a decision that
is more acurate. For more information about Roemtech innovation and other Roemtech
products, visit www.roemtech.com.
FCC Note:
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential or commercial installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
- Or, call Roemtech, we would love to help.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
