Wyred 4 Sound STmkII Stereo Amplifier Owner’s Manual **IMPORTANT** Check position of AC mains switch prior to connecting the unit to a power source. ©Wyred 4 Sound 2014 All rights reserved.
Table of Contents Safety Guidelines 1-2 Register Your Product 3 READ FIRST Important 3 Package Contents 3 Introduction 4 Design and Feature Overview 4-5 AC Mains Voltage Switch 5 Getting Connected 5-6 Powering your Integrated Amplifier 6 “Break-In” Period 6 RCA/XLR Input Select 6-7 DC Trigger 7 Back Panel Diagram 7 Troubleshooting 8 Got Hum? 8-9 Warranty Coverage 10-11 Service 12 Specifications 13
Safety Guidelines 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Read these instructions – All the safety and operating instructions should be read before this product is operated. Keep these instructions – The safety and operating instructions should be retained for future reference. Heed all warnings – All warnings on the appliance and in the operating instructions should be adhered to. Follow all instructions.
17. WARNING: To reduce the risk of electric shock, do not expose this apparatus to rain or moisture. The apparatus shall not be exposed to dripping or splashing and that objects filled with liquids, such as vases, shall not be placed on apparatus. 18. WARNING: The mains plug/appliance coupler is used as disconnect device, the disconnect device shall remain readily operable. 19.
Register Your Product! It is very important to complete the warranty registration form located on our website. You MUST complete and submit the form within 30 days of purchase to activate your warranty. When you navigate to our website there is a tab called “Support” that will lead you to the warranty registration form which needs to be filled out and submitted. **Keep your packaging! It is custom made for your unit and will effectively protect it for possible future use.
Introduction The transparent nature of a Wyred 4 Sound product will reproduce your favorite recording with an abundance of detail and transparency. Carefully designed circuits are built with premium grade components to produce optimum performance. Nothing is better than having neutral power behind your music! We understand that there are other products on the market which have similar features and internal parts.
Finally, the part that makes all of this possible is what many have been waiting for! The new chassis is more attractive than ever while keeping the functionality that we have come to love. A front view of the unit reveals only three screws tucked neatly in the rear of the top cover. The front panel is meticulously machined from a solid piece of ¾” aluminum, line grained, and anodized in black.
connection thus resulting in noticeably higher distortion being output to the connected speakers. Powering your amplifier In order to activate the STmkII, the switch located on the rear must be in the “on” position. A green light surrounding the power button on the front will illuminate. There is a built-in two second delay after initially turning the rear switch “on” before the front power button becomes active.
flush with the back of the unit. The “Out Position” will be defined as when the switch is in the extended position and not flush with the back of the unit DC Trigger Near the left side of the rear panel is a 12V DC trigger in and out. The trigger “IN” will turn the unit on from standby once it is actively fed 12V DC. This feature is very convenient because it will allow the STmkII to automatically power on and off whenever the source is turned on or off.
Troubleshooting No sound? Always check the volume level before starting to play music. Damage to the amplifier or connected components due to an unintended musical blast will not be covered under warranty. Feel free to test for audio output at any time during this process if you find and correct a potential problem. If you have your source and speakers connected yet music will not play, check the following: 1. Make sure that the Voltage Selector Switch is in the proper position.
regarding a solution. NOTE: We only recommend using a ground isolator for trouble shooting purposes, and it should be removed after the problem has been found and resolved. 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 and then start disconnecting components one at a time, starting with the source end of your system.
Warranty coverage Wyred 4 Sound’s warranty obligations are limited to the terms set forth below: Wyred 4 Sound, as defined below, warrants this Wyred 4 Sound-branded hardware product against defects in materials and workmanship under normal use for a period of FIVE (5) YEARS from the date of retail purchase by the original end user purchaser ("Warranty Period").
LIMITED IN DURATION TO THE DURATION OF THIS EXPRESS WARRANTY AND TO REPAIR OR REPLACEMENT SERVICE AS DETERMINED BY WYRED 4 SOUND IN ITS SOLE DISCRETION EXCEPT AS PROVIDED IN THIS WARRANTY AND TO THE EXTENT PERMITTED BY LAW, WYRED 4 SOUND IS NOT RESPONSIBLE FOR DIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH OF WARRANTY OR CONDITION, OR UNDER ANY OTHER LEGAL THEORY, INCLUDING BUT NOT LIMITED TO LOSS OF USE; LOSS OF REVENUE; LOSS OF ACTUAL OR ANTICIPATED PROFITS (INCLUDING LOSS
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 facility 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).
Specifications ST-500 mkII ST-1000 mkII Typical THD+N 8Ω (10W out) 0.001% 0.001% Power Output 8Ω @ 0.2% THD+N 245W 460W Power Output 8Ω @ 1.0% THD+N 277W 480W Power Output 4Ω @ 0.2% THD+N 430W 723W Power Output 4Ω @ 1.0% THD+N 460W 775W Output Idle Noise (A Wt.) < 125µV < 215µV Frequency Response 20Hz--20kHz (8Ω @ 10W) ± 0.15db Lower Bandwidth ± 0.1db 1.5Hz all loads 1.5Hz all loads Balanced Input Impedance 100k 92k Unbalanced Input Impedance 100k 92k Dynamic Range (A Wt.
Wyred 4 Sound PH: 805-466-9973 Fx: 805-462-8962 Email: support@wyred4sound.com pg.