Directed Electronics 225A, TD2200 specifications R Y O U R R E C O R D S

Page 2

Thank you for choosing TUBE DRIVER. Tube Drivers musicality and absolute sonic transparency allow accurate reproduction of recorded music enabling you to hear as well as feel the music the way the artist intended. These handcrafted amplifiers feature full differential “front ends” based upon a true instrumentation amplifier topology. Tube Drivers utilize only the highest quality Svetlana tubes in our unique configurations. All of the internal amplifier stages have been designed to have ultra-wide bandwidth together with a high degree of linearity. The tubes used in these amplifiers provide both voltage gain and current gain where they are connected in Cascode and Cathode Follower configurations. D.C. servos are used to control any D.C. offset. These servos are critically positioned in the circuit so that not only is D.C. offset eliminated but also any subtle differences between tubes are internally compensated. These tube stages are then connected to a high current BiPolar output stage that uses the same audiophile quality Sanken output devices featured in the PrecisionPower 2500F1.The output stages receive their power from a highly regulated D.C. power supply which enhances their performance significantly. Very little negative feedback is used. Low feedback designs have greatly improved sound quality having an extremely warm and open sound with enhanced musicality consistent with only the highest quality home tube amplifiers.

S ervice

Do not attempt to service TUBE DRIVER products yourself. Performing exploratory surgery on your audio equipment yourself will void the warranty. Many parts of your TUBE DRIVER gear are custom built to our specifications. Our factory parts are not made available to anyone else nor are they for sale. Our goal is to make sure that your TUBE DRIVER product will always sound as good as the day it was purchased. Contact your authorized TUBE DRIVER dealer about obtaining any warranty service through TUBE DRIVER.(See Warranty insde back cover)

F O R Y O U R R E C O R D S

M o d e l

Serial Number

Purchase Date

C aution!

The extended use of a high powered audio system may result in hearing loss or damage. While TUBE DRIVER systems are capable of "Concert Level" volumes with incredible accuracy, they are also designed for you to enjoy at more reasonable levels all of the sonic subtleties created by musicians. Please observe all local sound ordinances.

BACK TO CONTENTS

Page 1 Page 3
Image 2
Page 1 Page 3
Contents N T E N T S R Y O U R R E C O R D S M e n s i o n s Specification sN t i n u o u s O u t p u t P o w e r S e R e q u i r e m e n t s S e T i n g For TD225A is 100 a m p sU n t i n g W e r W i r e C a l c u l a t o rR n i n g O u n d i n g M o t e T u r n o nE a k e r C o n n e c t i o n s I d g i n g X e d M o n o O u t p u tP u t J a c k s L a n c e d I n p u t sP u t G a i n C o n t r o l T t i n g I n p u t G a i nPower / Ground W e r S i d eP u t / C o n t r o l S i d e 3 4 5S o u n d S o u n d i n O n e C h a n n e l P l i f i e r Tu r n i n g D o w n a t H i g h Vo l u m eI s e s W h i l e t h e E n g i n e i s O n T e r n a t o r w h i n eI s e s W h i l e t h e E n g i n e i s O n o r O f f S t e m h i s sLD4 LD3 Gain Three-Year Limited U.S.A. Warranty Tube DRIVER, Inc Service Department Th Street Phoenix, AZ
Top Page Image Contents