Wyred 4 Sound ST Series User Manual
Page 7
_____________________________________________________________________
WYRED 4 SOUND ST-SERIES v2.1
4235 Traffic Way
Atascadero, CA 93422
PH: 805-466-9973
FAX: 805-462-8962
©2013 WYRED 4 SOUND
All rights reserved.
Page 7 of 12
After the initial break in period, your amplifier will be ready to perform within minutes of powering it on.
Leaving the amplifier on all the time is recommended for optimal sound and will not shorten its life, nor will it
degrade future sound.
T
T
r
r
o
o
u
u
b
b
l
l
e
e
s
s
h
h
o
o
o
o
t
t
i
i
n
n
g
g
No sound?
If you have your input source and speakers connected, and you can’t get music to play, check the following:
1. Verify that the power cord is plugged in and that the outlet is powered up.
2. Check the front panel and make sure that the blue light is on.
3. If the front panel is blue and there still isn’t any sound, put your ear next to the tweeter of your speaker
and have someone turn your amplifier off then on again at the rear switch. You should barely hear a
click when the amplifier is turned on and off
4. If you can hear the amplifier turn on and off, but there still isn’t any sound, make sure you are getting a
signal to it.
5. Verify that the input switch is selecting the proper input for what you have connected.
6. If the switch is in the proper position and still no sound, then try replacing the interconnects to verify
the connection between the amplifier and source.
7. Verifiy that the interconnects are conducting by replacing them on a different set from a connection that
you know works.
8. Now that you have interconnects that you know work, try connecting the amplifier to another source
that you know has worked in the past.
If you are still experiencing problems after checking all possibilities and using the resources provided please
contact your dealer or Wyred 4 Sound directly for further assistance.
G
G
o
o
t
t
h
h
u
u
m
m
?
?
Is there too much hum or hiss coming out of your speakers? If you put your ear right next to the tweeter
of your speaker, you should barely be able to hear any hiss from the amplifier in normal conditions. If the noise
is easily heard at a distance, try putting your source on mute, or pause. If this eliminates the noise, it’s inherent in
the source or preamplifier. If your preamplifier doesn’t disconnect the outputs when muted, and the noise still
exists while muted, try disconnecting the inputs to the amplifier. If the noise is still there when the inputs are
disconnected, and the inputs are shorted with shorting plugs, then your amplifier may need some servicing. If the
noise is not there when the inputs are disconnected, try putting a cheater plug (ground isolator) on one or all
components in order to eliminate a ground loop issue. NOTE: We only recommend using a ground isolator for
trouble shooting purposes, and should be removed after the problem has been found. Having the ground of any
unit disconnected can potentially create a dangerous situation.
An easy way to locate a noisy component is to replicate the problem then start disconnecting components
one at a time, starting with a source. Digital cable boxes and satellite receivers are notorious for making ground