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Summary of Contents for Woo Audio WA2
- Page 1 WOO AUDIO WA2 Stereo Headphone & Pre Amplifier Single-Ended, Class-A, Output Transformer-Less (OTL) Owner’s Manual Please review this manual before operating your WOO AUDIO™ product. ©2011 WOO AUDIO Inc. All rights reserved. www.wooaudio.com Rev 1.1. May 24, 2012. 1 ...
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Page 2: Important Safety Information
Important Safety Information CAUTION: These amplifiers are shipped without the vacuum tubes installed. It is necessary to install the tubes first. The tubes must be installed correctly or serious damage that is not covered by the warranty will result. Turn off immediately in the event of malfunction Should you notice smoke or an unusual smell coming from the equipments, turn it off immediately. -
Page 3: Table Of Contents
Table of Contents IMPORTANT SAFETY INFORMATION TABLE OF CONTENTS OVERVIEW QUICK INSTALLATION OPERATION COMPATIBLE TUBES FAQ - FREQUENTLY ASKED QUESTIONS WARRANTY AND SERVICE REVIEWS PRODUCT SPECIFICATION ©2011 WOO AUDIO Inc. All rights reserved. www.wooaudio.com Rev 1.1. May 24, 2012. 3 ... -
Page 4: Overview
Overview Thank you for choosing a Woo Audio product. The WA2 is finely hand-crafted amplifier that delivers uncompromised performance and superior listening experience. Point-to-Point wiring Two 6AS7 / 6080 power tubes Two 6922 / 6DJ8 drive tubes ... -
Page 5: Quick Installation
Quick Installation What’s in the box? ① WA2 amplifier ② One matched pair of 6922 rectifier tubes ③ One matched pair of EC80 rectifier tubes ④ One matched pair of 6080 power tubes The actual tubes may look different. Compatible tubes may be included instead of the ones illustrated above. - Page 6 Installing the power tubes: Note: avoid oil or smudge on the tube glass; clean hands before installation. 1. Find the correct tube for the socket. There is a label below each tube socket that indicates a standard tube for the amplifier. For example, a 6080 tube should install on the “6080”...
- Page 7 4. Check installation. The tube pins should be inserted fully into the tube socket receptacles. Installing driver and rectifier tubes: Bottom of the tube Align the tube to the socket Insert the tube perpendicular Use both hands if needed to the socket Selecting AC voltage: WARNING: failure to select the correct voltage will result in damage of the amp.
- Page 8 Installing the power cord: Plug the power cord into the AC inlet. See ① in the below diagram. The AC inlet socket is a standard IEC type. You will need to obtain the correct type for your region. U.K. European U.S.
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Page 9: Operation
DO NOT o Turn on the amp before properly installing ALL tubes. o Use tubes that are not approved by Woo Audio. o Turn on the equipment without checking the correct AC voltage setting. o Remove any tubes or the DC cord while the amp is operating o Touch tubes (extremely hot) after warm-up. - Page 10 Turning the amplifier on: 1. Turn the volume knob to the lowest position. 2. Insert a headphone into phone jack ①. 3. Press the power switch ④ to a locking position. The LED will light. 4. Observe that all tubes light gradually. 5.
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Page 11: Compatible Tubes
Compatible Tubes Model Adapter Comment 6922 * No 6DJ8 No 6N1P No 7308 No E188CC No E88CC No E288CC No ECC88 No CCa No EZ80 * No 6CA4 No 6V4 No ... -
Page 12: Faq - Frequently Asked Questions
FAQ - Frequently Asked Questions There is abnormal sound right after turning on the amplifier. This is normal from a cold start as the tubes are warming up to get into the proper working state. The noise will disappear gradually. Can I change headphone while the amplifier is on? Yes, but you must first minimize the volume. -
Page 13: Warranty And Service
Warranty and Service Woo Audio warrants this product free from defects in materials and workmanship for 1 year from the original date of purchase. The tubes are warranted for 30 days unless otherwise stated. In the event that your Woo Audio product requires servicing, please contact us directly to get a return instruction. -
Page 14: Reviews
– 6Moon “I have since tried HD 800’s with the prototype Woo Audio WA 22 amp (which is tube rather than solid state apm that has variable output impedance). The WA 22 takes the sense of vividness up a notch, mostly by making the midrange contrast level higher, while introducing minimal if any deleterious side effects. -
Page 15: Product Specification
External Dimension, end to end 5.5" (H) x 13 (W) x 9" (D) measurement, same for both units: Weight: 17 pounds Woo Audio is committed to continuously improve its products. We reserve the right to improve the design without notice. ©2011 WOO AUDIO Inc. All rights reserved. www.wooaudio.com ...
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