Pioneer SI-245 - Manual (Page 4)

FEATURES AND BENEFITS
Real World Power
The SI-245 delivers 45 watts per channel at 8 Ohms and 70 watts per channel at
4 Ohms. You’ll get tremendous bass and dynamics from every pair of speakers
powered by an SI-245.
Transparent Sound
The audio circuitry of the SI-245 is constructed using the finest parts available;
including 1% metal film resistors, high quality capacitors, and oversized heat sinks.
All this attention to technical detail creates a sound that is clear and uncolored with
phenomenal imaging.
Freedom From Crosstalk
Each channel of the SI-245 is powered via its own independent power supply. This
increases the isolation between the two channels, and minimizes cross talk guaran-
teeing you absolute silence as the backdrop to your music.
Current For Reactive Loads
The high current design of the SI-245 assures that even unusual and reactive loads are
handled with aplomb (a massive toroidal transformer with two separate windings, one
for each of the independent power supplies, provides more than ample current
to your system).
Freedom from Fan Noise
The oversized heat sinks inside the SI-245 allow the amplifier to stay cool even when
operating into low impedance loads—without the noise of fan-cooled amplifiers.
Independent Level Controls
Each channel has its own independent level control enabling you to precisely
match the SI-245 to the rest of your system. The level controls also enable you to
limit the volume, preventing abuse of the system.
Lifetime Connections
The SI-245 features stereo inputs, cascade stereo outputs, and five-way binding
posts which are all gold plated to ensure perfect connections without corrosion for
years to come.
FEA
TURES AND
BENEFITS
3
16
TROUBLESHOO
TING GUIDE
TROUBLESHOOTING GUIDE
When there is a problem consult this guide first. If the problem persists, or you
have additional questions, call your local Niles dealer or Niles Technical Support
at 1-800-289-4434. The most common problems relate to hook up. Call from
your telephone extension nearest the system.
SYMPTOM
No sound on one channel
No sound on both channels
Hum from the speakers
POSSIBLE CAUSES AND TEST PROCEDURE
Short circuit or loose wire at the speaker or amplifi-
er terminals. Check that the connections are secure
and that there are no loose strands of wire crossing
from the positive to the negative terminals at the
back of the amplifier and /or the speaker.
Short circuit or a break in the speaker wire. Dis-
connect the speaker wire at both ends, separate the
2 conductors at both ends and test with a meter for
a short circuit. If there is no short, connect the two
conductors at one end and test with a meter for
continuity.
Speaker is not working. Connect the speaker to a
channel that plays another speaker.
Audio cable to input is bad. Connect another cable
that is known to be good.
Audio cable to the main inputs is bad. Connect
another cable that is known to be good.
Hum may be caused by a ground loop between
two of the other components in the system. To test
for another ground loop, try reversing the AC plugs
of each of the components in the system.
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