TABLE
OF
CONTENTS
Front Panel
Rear Panel
Specifications
Warranty
pg. 3
pg. 4
pg. 5
pg. 6
INTRODUCTION
Dynasound’s DS1625 soundmasking amplifier delivers a full 250 Watts of power into direct or
distributed speaker systems. The DS1625 is designed for reliable service in permanent
installations, and comes complete with short-circuit and thermal protection, including front/rear panel
indicators and automatic reset. Plug-in barrier strip input and screw terminal outputs provide
trouble-free, dependable connections. DS1625 amplifier is UL listed and carry Dynasound a five-
year systems warranty.
DS1625
features include:
250 watts at all outputs (4Ω direct & transformer)
internal transformer (8Ω, 70V, 25V, & 25V-CT outputs)
signal/peak & temp/fault indicators on front & rear panels
balanced/unbalanced input selector on rear panel
level control & input sensitivity selector on rear panel
high-pass filter selector on rear panel (12dB/oct. @ 125Hz)
input on plug-in barrier - outputs on screw terminals
complete speaker, short-circuit, & thermal protection
variable speed fan (quiet, reliable - no filter maintenance)
incorporates
AES
recommended grounding practices
covered by a Dynasound five-year systems warranty
UL
/
C-UL
listed
IMPORTANT SAFETY INFORMATION
Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Clean only with a dry cloth.
Do not block any of the ventilation openings.
Install in accordance with the manufacturers
instructions.
WARNING - To reduce the risk of electric shock, do not
expose this apparatus to rain or moisture.
Unplug this apparatus during lightning storms or when
unused for long periods of time.
Apparatus shall not be exposed to dripping or splashing
and no objects filled with liquids, such as vases, shall be
placed on the apparatus.
Do not install near any heat sources such as radiators,
heat registers, stoves, or other apparatus
(including
amplifiers)
that produce heat.
Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug has
two blades and a third grounding prong. The wide blade
or the third prong are provided for your safety. When the
provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.
Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the
point where they exit from the apparatus.
Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power-supply cord or plug
is damaged, liquid has been spilled or objects have fallen
into the apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally, or has been
dropped.
Explanation of safety related markings and symbols which appear on the outside of the apparatus.
Lightning Bolt: Hazardous Live voltages present when this unit is in operation. Do not touch terminals
marked with this symbol while the unit is connected to live power.
Exclamation Point: Replace components
(i.e., fuses)
only with the values specified by the
manufacturer. Failure to do so will compromise safe operation of this unit.
