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TUBE ULTRAFEX T1954

FOREWORD

Dear Customer,
We thank you for expressing your confidence in BEHRINGER products by purchasing the BEHRINGER

TUBE ULTRAFEX. It is one of my most pleasant tasks to write this preface, as our engineering team has made

it possible to enhance the traditional tube circuitry design (particularly for our VINTAGER series of products),

and adapt it to meet the high sound quality and dynamics requirements of modern, pro-level audio technology.

The fact that we are still fascinated by “antique” tube radios and amps as well as the fine and warm tonal

character that we usually associate with them, are the reasons why vacuum tubes have kept their ground even

in state-of-the-art circuit topologies used especially in professional audio technology or high-end devices. We

are particularly proud that we have found an extremely effective symbiosis between solid-state and tube

technologies making them affordable to anybody interested in audio technology. As always, our top-priority

concern when developing this device was the demanding end user, in other words: you. It was our major goal

to meet your demands. Sure, it meant a lot of hard work to develop such a product, but the fun has made it all

worthwhile. The shine in the eyes of the many interested musicians at the Music Fair 1997, when they saw our

VINTAGER models for the first time, was a lasting incentive driving our development efforts.
It is our philosophy to share our joy with you, because you are the most important member of the BEHRINGER

family. With your highly competent suggestions for new products you’ve greatly contributed to shaping our

company and making it successful. In return, we guarantee you uncompromising quality (manufactured under

ISO9000 certified management system) as well as excellent technical and audio properties at an extremely

favorable price. All of this will enable you to fully unfold your creativity without being hampered by budget

constraints.
We are often asked how we can make it to produce such high-grade devices at such unbelievably low prices.

The answer is quite simple: it’s you, our customers! Many satisfied customers means large sales volumes

enabling us to get better conditions of purchase for components, etc. Isn’t it only fair to pass this benefit back

to you? Because we know that your success is our success, too!
I would like to thank all people whose help on “Project TUBE ULTRAFEX” has made it all possible. Everybody

has made very personal contributions, starting from the designers of the unit via the many staff members in our

company to you, the user of BEHRINGER products.

My friends, it’s been worth the trouble!

Thank you very much,

Uli Behringer

All manuals and user guides at all-guides.com

Summary of Contents for Tube ultrafex T1954

Page 1: ...TUBE ULTRAFEX T1954 www behringer com Version 1 1 December 2001 User s Manual ENGLISH All manuals and user guides at all guides com a l l g u i d e s c o m...

Page 2: ...ifiers that produce heat Power Source The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance Grounding or Polarizati...

Page 3: ...nterested musicians at the Music Fair 1997 when they saw our VINTAGER models for the first time was a lasting incentive driving our development efforts It is our philosophy to share our joy with you b...

Page 4: ...essing s Special LC coil cap filter produces authentical vintage soft and tight bass sounds s Surround processor provides real spatial enhancement and improved stereo imaging s Built in noise reductio...

Page 5: ...ing the Sound of Instruments 13 3 6 Enhancing the Sound of P A Systems 14 3 7 Sound Enhancement in HiFi and Video 14 4 TECHNICAL BACKGROUND 14 4 1 The BEHRINGER TUBE ULTRAFEX 14 4 2 Psycho acoustic Ba...

Page 6: ...l known for a long time engineers have been able to refine and improve the essential components over and over again The BEHRINGER company has also contributed considerably to this development With the...

Page 7: ...make sure that all units have a proper ground connection Please ensure that only qualified persons install and operate the TUBE ULTRAFEX During installation and operation the user must have sufficien...

Page 8: ...uction system The more LEDs illuminate the more effect signal passes through the noise reduction system When all three LEDs light up constantly the noise reduction sys tem is inactive In quiet passage...

Page 9: ...d upper harmonics 14 The POWER switch activates the TUBE ULTRAFEX If the unit is switched off it is bypassed and the input signal is connected to the outputs of your TUBE ULTRAFEX Fig 1 4 The rear pan...

Page 10: ...it used for the first time in the TUBE ULTRAFEX allows for variably fading over from enhancer to exciter mode Using the PROCESS control clockwise the exciter circuit comes in additionally to provide a...

Page 11: ...gnal drops below the value set by the NR SENSITIVITY control The NR SENSITIVITY also controls the sensitivity of the enhancer exciter When the NR SENSITIVITY control is turn clockwise more harmonics a...

Page 12: ...n liveliness loudness and transparency As in a cinema with its special acoustics the listener has the impression that the orchestral instruments are placed all around him The Surround Processor enlarg...

Page 13: ...check the quality of the copy while duplicating the tape If the tape noise is fairly high a different strategy is required since the TUBE ULTRAFEX can effectively process the frequency ranges in whic...

Page 14: ...r VCR etc and the power amplifier We recommend using the tape monitor inputs most pre amplifiers provide thus the TUBE ULTRAFEX can be switched into any signal source 4 TECHNICAL BACKGROUND 4 1 The BE...

Page 15: ...and is underlined by the fact that a combination of harmonics can produce additional tones known as interference or residual tones All of these tiny sound portions contribute to the sound of certain...

Page 16: ...Lindridge had already invented the first EXCITER a unit that EXCITES upper harmonics when he presented a unit for improving the sound of music and speech He enriched signal sources with artificially g...

Page 17: ...and spatial information is improved by delaying the signal Due to the described function the Surround Processor is principally useful only with stereo program material 4 6 The Vacuum Tubes of the TUB...

Page 18: ...s its non linear amplification curve i e it modifies the sound character of the source material Despite all efforts to ensure a largely linear frequency response it had to be accepted that tube device...

Page 19: ...s electrons emitted from the anode plate when it is hit by arriving electrons To prevent this electron emission a decelerating or suppressor grid is placed between anode and screen grid As it is negat...

Page 20: ...or and tube technologies In this context tubes no longer serve their original purpose as amplifiers but are used for the detailed shaping of sound 4 6 6 Studio applications In a recording studio tubes...

Page 21: ...ech nical specifications in the appendix The mains connection of the TUBE ULTRAFEX is made by using a mains cable and a standard IEC receptacle It meets all of the international safety certification r...

Page 22: ...ts Electrical potential differences and ground loops in audio installations do not there fore impair the performance of the units The transformer balanced outputs commonly used in radio and TV enginee...

Page 23: ...itivity variable 0 to 6 Tune variable 1 to 8 kHz Process variable enhancer to exciter High Mix variable 0 to 6 Surround section Surround variable 0 to 6 Function switches and controls L C Filter switc...

Page 24: ...f the product at BEHRINGER 2 If the product needs to be modified or adapted in order to comply with applicable technical or safety standards on a na tional or local level in any country which is not t...

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