Wyred 4 Sound OWNER’S MANUAL _____________________________________________________________________ STP-SE Stereo Preamplifier Get Wired, WYRED 4 SOUND _____________________________________________________________________ WYRED 4 SOUND 4235 Traffic Way Atascadero, CA 93422 PH: 805-466-9973 FAX: 805-462-8962 support@wyred4sound.com www.wyred4sound.com ©2013 WYRED 4 SOUND All rights reserved. ST Preamp v2.
TABLE OF CONTENTS Warranty Registration 3 Unpacking 3 Introduction 3 Design features 4-5 Front panel operation 5 Powering your preamplifier 5 DC Trigger 5-6 HT Bypass 6 Getting connected 6 “Break-in”/ warming up Period 7 Troubleshooting 7 Got Hum? 7-8 Warranty coverage 8-9 Servicing your preamplifier 10-11 Product Specifications 12 _____________________________________________________________________ WYRED 4 SOUND 4235 Traffic Way Atascadero, CA 93422 PH: 805-466-9973 FAX: 805-
Warranty Registration **IMPORTANT** Please take a moment to complete the warranty registration form located on our website. You MUST complete and submit this form within 30 days of purchase to activate your warranty. Unpacking The STP packaging contains: 1 – Owners Manual 1 – 6’ AC Power Cable 1 – 6’ DC Trigger Cable 1 – STP Stereo preamplifier 1 – Remote control 2 – AAA batteries Carefully inspect your new preamplifier for any shipping damage.
Design Features There are so many particulars that make the STP superior to other preamps. The best possible preamp would be one that didn’t exist! We have created the closest anyone has ever come to that while still offering a fully functional preamp. For the cleanest sound, what goes in should come out, nothing less, nothing more. For this we’ve made our preamp passive and active at the same time.
With 2 sets of balanced inputs/outputs, 3 sets of unbalanced inputs and 2 sets unbalanced outputs, connection possibilities are vast. Being fully balanced input to output; the phase going in comes out. When an unbalanced input is selected, an inversion circuit is connected to maintain balanced outputs and optimum versatility. 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.
other devices such as power amps. When the STP is on, the trigger outputs go high (+12V), when off they go low (0V). If your unit locks up and doesn’t respond to anything, then chances are that the DC trigger input is applied, but not assigned in the setup menu. HT-bypass To properly set up the HT-Bypass feature you must complete the following. Make sure the unit is powered up, but in the off position.
“Break-in” period Your new preamplifier will deliver outstanding performance right out of the box. However, you should plan on improvements as it reaches its normal operating temperature and once all of the components have a chance to “settle in”. Our experience has shown that the STP has reached its’ potential after the initial 200 hours. One will find that the initial 100hours, the unit will start to shed the initial “brightness” and somewhat harsh transitions.
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.
WRITTEN, STATUTORY, EXPRESS OR IMPLIED. AS PERMITTED BY APPLICABLE LAW, WYRED 4 SOUND SPECIFICALLY DISCLAIMS ANY AND ALL STATUTORY OR IMPLIED WARRANTIES, INCLUDING, AND WITHOUT LIMITATION, WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND WARRANTIES AGAINST HIDDEN OR LATENT DEFECTS.
Service In the unlikely event there is a problem with your Wyred 4 Sound component, please contact your dealer, distributor, or Wyred 4 Sound to discuss the problem before you return the component to our manufacturing facilities for repair. Products shipped to the factory will be refused and returned freight collect if not accompanied by a Wyred 4 Sound Service Department issued return authorization number (RA Number).
Service procedure If you are located outside of the United States use the following procedure: 1. Obtain a Return Authorization Number (R/A number) and shipping address from your dealer or distributor’s Service Department. 2. Insure and accept all liability for loss or damage to the product during shipment to the dealer or distributor’s Service Department and ensure all freight (shipping) charges are prepaid.
STP Specifications Typical Distortion THD+N (20-20kHz / 2V) <0.003% THD+N Noise (A-weighted / VOL ≤ 63) Noise (A-weighted / VOL ≥ 64) < 6 µV < 18 µV Noise (20-20kHz / VOL ≤ 63) Noise (20-20kHz / VOL ≥ 64) < 9 µV < 27 µV Frequency Response (20-20kHz / 2V) Channel Tracking (All Steps) IMD Crosstalk (20-20kHz / VOL ≤ 63) Crosstalk (20-20kHz / VOL ≥ 64) Output Impedance (VOL ≤ 63) Output Impedance (VOL ≥ 64) Input Impedance Maximum Output Voltage +/- 0.02 db < +/- 0.05 db < 0.