Wyred 4 Sound STI Series User Manual
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WYRED 4 SOUND STI Integrated amplifier v2.2
4235 Traffic Way
Atascadero, CA 93422
PH: 805-466-9973
FAX: 805-462-8962
©2013 WYRED 4 SOUND
All rights reserved.
Page 5 of 12
3. Release all the buttons when the set-up screen shows up on the display.
4. Use the input up and down buttons to navigate the menu function.
5. Use the mute button to select and enter the menu function.
6. Use the volume knob to change the setting with-in the menu function.
(You can press the input buttons to save the settings and move to another function)
7. Once all settings have been made, press the power button again (knob) to set and store you selections.
When selecting the HT Bypass input, make sure that the proper input is selected which is connected to your
HT processor. When the trigger is applied after this setting is made, the unit will automatically select that input,
set the volume to -0db, and turn on other connected equipment via the DC trigger output.
When the Loop out feature is used, Aux out becomes the loop out which will feed the connected components
input, and Input 5 will become the loop in which will come from the output of the connected component. Please
note: the loop in connectors are directly connected to the internal amplifiers as if the unit was a standalone amp
with 27db of gain. The loop out is controlled by the volume control, but the loop in is not. Make sure you have
all connections made properly to ensure no damage is made to your equipment.
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When power is applied to the amplifier and the switch located on the rear is in the on position, the
amplifier will turn on. If you would like to manually turn the amplifier on and off, this switch is where you would
want to do so. Leaving your amplifier on all the time will not hurt it, shorten the lifespan, or degrade the future
sound. The STI series amplifiers make zero noise internally and to connected gear. The unit shouldn’t be in any
way noticeable of its operation other than the display status on the front panel. To prevent power surges, we
recommend using quality surge suppressor equipment. Turning the switch off on the rear of the unit will also
protect against surges and spikes should some occur without proper protection.
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The STI series stereo amplifiers are equipped with a 12VDC remote trigger input and output. You can
connect the 12V trigger output of your processor or source to the 12V trigger input on the amplifier for an easy
remote power up and HT configuration every time. When the unit is in standby via the remote trigger, the
amplifier is powered up, but disabled. The current draw in standby mode is less than 10W per channel, and
shouldn’t measure too much on your electricity bill. The trigger input will work from 5-25V, so there shouldn’t
be any issue with the voltage tolerance on source equipments outputs rated for 12V. You can also connect the
trigger output to additional amplifiers or equipment to be turned on and off with the STI amplifier.
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CAUTION: Disconnect the power cord or put the power switch in the off position before making any
connections to your amplifier to minimize the risk of electric shock and possible loudspeaker damage. Power
your amplifier after all final connections have been made. NOTE: This is a balanced amplifier and you should