Wyred4Sound STI-500

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The new STI series integrated amplifiers offer unbelievable value, and sonics that rival units costing many times more.

If you're looking for the best deal on an integrated amplifier which also provides the resolution and clarity as those costing many times over, look no further. An extremely wide sound stage and imaging that takes you to the music are just a few attributes of our latest creation. Many of the features derived from the STP preamp have given this unit an edge that many others are looking for.
It all starts with our proprietary fully balanced dual FET unity gain buffers on the front end to welcome incoming signals. Our true resistive-ladder volume control is fed from the FET input stage and offers exceptional tracking. Our line stage that couples the amplifier to the front-end offers a balanced output regardless of the selected input. This offers much better common-mode rejection, and a quieter background.
Some features the STI series have that others don't is the same HT bypass feature as the STP, and a loop through feature. Like the STP, you can connect a DC trigger cable to your Pre/Pro (and set-up the proper input in the setup menu) to automatically configure the unit for HT use. When an input is selected to be used as the HT input, the DC trigger can be activated by your Pre/Pro 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 and connected gear through the DC trigger output. When 2ch listening is desired, then manual operation can be executed from the front of the unit, or through the remote.
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 to be made on the fly.
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 unit can be done several ways, by pushing in on the volume knob (power button), by pressing power on the remote, or by the remote DC trigger input when HT Bypass is selected in the setup menu.
What are you waiting for?
Rediscover your music, Wyred 4 Sound, Just listen....


STI-500 Specifications:

Typical Distortion THD+N (10W out) 0.005%

Channel Tracking (All Steps) < +/- 0.05 db
Crosstalk (20-20kHz) >77 db

8 power per channel (0.2%) 250w
4 power per channel (0.2%) 550w

Frequency Response (20-20kHz / 2V) +/- 0.3 db
Lower Bandwidth 3.3Hz all loads
IMD 0.0005 %
Gain 0-39 db
Output Impedance 0.005
Idle power consumption 25 w
Efficiency 80 % (4)
Input Impedance 60.4k
Sensitivity 0.55 V RMS

Unit Features:

  • Vacuum Fluorescent Display (VFD)
  • Optical rotary encoder (volume knob / power button)
  • Fully functional remote control
  • 12V DC Trigger input (to automatically activate HT Bypass mode)
  • 12V DC Trigger output
  • Home Theater bypass (customizable for any input, also DC Trigger input selected)
  • Balance control
  • Absolute phase control (0°/180°)
  • Efficient (little heat)
  • Extremely low noise floorTrue Resistive-Ladder volume control
  • Unbalanced to Balanced conversion (when RCA inputs are selected)
  • Extremely low Idle power consumption
  • Rugged construction
  • Machined and Anodized front panels
  • 60k input impedance
  • 4 sets of gold plated unbalanced (RCA) inputs
  • 1 set of gold plated unbalanced (RCA) outputs
  • 1 set of Neutrik Balanced (XLR) inputs
  • Factory Selectable mains 115/230VAC
  • Compact size (17”W x 4”H x 14.5”D)
  • TBD lbs.
  • Covered by a 3 YEAR WARRANTY

Price: US$ 1,999.00 EA

Wyred4Sound STI-500 Review