OSD Audio SMP300 User Manual

OPERATION
Please use diagrams 1 & 3 to fam il iarize yourself with the front and rear panels of the SMP300.
CAUTION: Please read all of t he followi ng instructions to prevent causi ng damage to your system.
FRONT
PA NEL CONTROLS
• Power Switch
T
he switch marked "power" on the front panel of the amplifier wi ll turn off a ll amplifier circuitry including Auto Sense
circu i
try.
• Vo lume Controls
Use this to match t
he output level of the subwoofer to that of the main speakers in the system. We recommend th at you
play a variety of mate
ri al before selecting a se tt ing. Start w it h the control turned completely counterclockwise (o ff) and
slowly turn it up . NOTE: Turning t he volume up slowly wi ll prevent possible damage to the woofer from t he system be in g
run too "hot". Very ltttle movement of the knob is needed.
CAUTION: If a popping sound
(c lipping) is audible through the subwoofer, it is being overd riven, red uce the volume on
the SM P300, or speaker damage may occur! (See Vo lume Limit Control for proper adjustment of volume settings to avoid
distorti
on damage.)
•
Lo w Pass F il ter
Use this control to adjust the upper frequency limit of the subwoofer. The pu rpose is to control the overlap of the
subwoofers upper frequenc ies and t he main speakers lower frequencies. If adjusted properly this will provide seamless
blending of the subwoofer and the main speaker
s.
• Phase Control
This control allows you to match t
he arrival times of the sound waves from the subwoofer and the main speakers to your
li stening area. Whi le the system is playi ng flip t he switch to the 180° setting and back t oo · until t he bass sounds louder or
less bo omy. Depending on the subwoofers placement and room acoustics, this contr ol may ha ve little or no effec t.
REAR PAN EL CONTROL
• Vo lume Li mit Cont ro l
Diagram 3
Amplifier
Fr on t Panel
(See diagram 1) Use this control to
ad just the maximum volume setting for your subwoofer system . With t he level control
and t he front panel vo lu me turned a ll the way down (co un terclockwise), turn the subwoofer on and with audio playing
through the system adjust the maximum volume level desired. Sett in g a max volume level w il l ensure that no clipping or
damage w il l occur even when the front panel volume control is turned all the way up.

OSD Audio SMP300 Specifications

Power

peak power output	500 Watts @ 4 Ohm
RMS power output	150W @ 8-ohm, 250W @ 4-ohm
dual voltage	120V/230V

Audio Specifications

frequency response	20Hz-160Hz +/-1dB
total harmonic distortion	1%
signal to noise ratio	95 dB

Weight and Dimensions

dimensions	16.25" x 3" x 9.25"
weight	7 lbs.
rack mountable	1U Rack Space