Wyred 4 Sound STI Series User Manual
Page 4
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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.
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There are many reasons why the STI series integrated amplifiers are better than the competition. To start
with, the volume control in the STI is a true-resistive ladder type that offers truer linearity, and supreme sonic
quality. The line-stage within the integrated doubles as an unbalanced to balanced converter which provides a
balanced signal from unbalanced inputs.
A loop in/out feature is also on hand with the STI integrated amplifiers. In the setup menu, you can select
the loop feature to insert a digital crossover or similar devices into the audio path. When the loop feature is
activated, Input 5 becomes loop in, and the AUX out becomes loop out.
With a set of balanced inputs, 4 sets of unbalanced inputs and a set of unbalanced outputs, connection
possibilities are vast. Absolute phase and balance control are easily selected through the supplied remote for
those out of phase recordings, and room adjustments.
User interface is made easy with the VFD display and optical rotary encoder. Allowing input naming and
HT Bypass input selection, the setup menu is easily accessed for customization. Several display dimming steps
including “off” are available through the remote for stealth operation. Powering up the STP can be done several
ways, by pushing in on the volume knob, by pressing power on the remote, and by the remote DC trigger in when
HT Bypass is selecting in the setup menu. When an input is selected to be used as the HT input, the DC trigger
can be activated by a surround processor to power up the unit, and automatically set the volume to unity gain.
This allows for all volume controls to be made through the surround processor. When the processor is shut
down, so is the STI. When 2ch listening is desired, then manual operation can be executed from the front of the
unit, or through the remote.
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The front of the STP offers several features, power on/off, input selection, volume control, muting, setup
routine, and display for user feedback. For phase, balance, and dim control, the remote must be used. To enter
the setup mode, input up and down must be pressed in while the power is turned on by pushing in the volume
knob. Once in the setup menu, input up/down is used to scroll through the settings, mute is used to select the
setting for adjustment, and the volume knob is used to adjust the setting. For input naming, the volume control
will be used to select the character, and the mute button to move to the next character position for adjustment.
Once all settings are made (automatically saved once changed), the setup menu can be closed by pressing the
power button (volume knob) again at any time.
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To enter the set-up menu proceed with the following steps:
1. Make sure the unit is plugged in, power switch on rear is on, and the unit is off.
2. Push and hold in the Input up and down buttons while pressing the power button (knob) once.