Wyred 4 Sound OWNER’S MANUAL _____________________________________________________________________ ST SERIES Stereo Power amplifier 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-SERIES v2.
TABLE OF CONTENTS Warranty Registration 3 Unpacking 3 Introduction 3 Design features 3-4 Front panel operation 4 Powering your amplifier 4 DC Trigger 4 Light bar brightness 5 Getting connected 5 Input Stage 6 XLR / RCA Switch 6 Short Circuit / Over Current Protection 6 “Break-in”/ warming up Period 6 Troubleshooting 7 Warranty coverage 8-9 Servicing your amplifier 10-11 Product Specifications 12 _____________________________________________________________________ WYRED 4 S
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. (You can easily navigate to the “Register Products” page from the home page of our website) http://www.wyred4sound.com/142386/html/formpage.
The ST series amplifiers are a stereo amplifier design that will produce peaks in excess of 125W/330W/625W with 8 ohm loads and 220W/625W/1225W with 4 ohm loads per channel depending on model. Each channel of the stereo amplifiers is powered from their own dedicated power supply. The compact and effective design is made easy thanks to the switching power supply that powers the bridged switching output stage derived from ICEpower™ technology.
Light bar brightness The light bar can be adjusted for brightness through a clearance hole on the bottom of the chassis. As a factory standard, the amplifiers are configured for maximum brightness. One can dim the light bar by using a miniature flat head screwdriver (sunglass repair driver), and rotating the potentiometer on the bottom of the chassis. The light bar to be turned completely off if so desired by rotating the potentiometer in the opposite direction as delivered.
Input stage One of the benefits of the ST series amplifiers is the input stage. The proprietary dual, fully balanced FET input stage offers unparalleled integration with any source. The input stage helps your preamp drive your amplifier with ease. What happens with our competitors units is that the input signal becomes hard to drive at times, and some sources start to clip at that point. The signal that causes the most “stress” (peaks) is what will end up being chopped up, or incomplete.
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. Troubleshooting 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.
loop hum. This is normally caused by the potential difference on the input wire (shield side) for either of the boxes when referenced to ground. If this is the case in your system, the installation of an isolating transformer would be the easiest solution and are normally readily available at your local electronics parts store. A better solution is a power strip with grounded and surge protected F-connectors that you can pass a signal through.
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.
Product specifications ST-250 ST-500 ST-1000 Typical THD+N 8Ω (10W out) 0.009% 0.0027% 0.0055% Power Output 8Ω @ 0.2% THD+N Power Output 8Ω @ 1.0% THD+N 100Wpc 125Wpc 250Wpc 330Wpc 570Wpc 625Wpc Power Output 4Ω @ 0.2% THD+N Power Output 4Ω @ 1.0% THD+N 195Wpc 220Wpc 550Wpc 625Wpc 1,140Wpc 1,225Wpc IMD (CCIF) Transient Intermodulation (TIM) Output Idle Noise 0.0005% 0.004% 90uV 0.0005% 0.
