Behringer Tube Ultragain T1953 User Manual Download Page 3

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TUBE ULTRAGAIN T1953

FOREWORD

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

TUBE ULTRAGAIN. 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 ULTRAGAIN” 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

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Summary of Contents for Tube Ultragain T1953

Page 1: ...TUBE ULTRAGAIN T1953 Version 1 2 December 2002 User s Manual ENGLISH Downloaded from www Manualslib com manuals search engine...

Page 2: ...rs 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 Polarization P...

Page 3: ...ested 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 becau...

Page 4: ...evel converter from 10 dBV to 4 dBu s Soft mute 48 V phantom power to avoid switch on thumps s Fully tunable and switchable 12 dB high pass filter s Switchable phase reverse to correct phase problems...

Page 5: ...ACKGROUND 12 4 1 Audio dynamics 13 4 1 1 Noise as a physical phenomenon 13 4 1 2 What are audio dynamics 14 4 2 The tubes used in the TUBE ULTRAGAIN 15 4 3 Tube history 15 4 4 Design and functional pr...

Page 6: ...logies making them affordable to almost anybody in audio technology With the exception of 2 12AX7 ECC83 tubes the TUBE ULTRAGAIN T1953 is based on SMD technology Surface Mounted Device These subminiat...

Page 7: ...he connectors on the back panel Be sure that there is enough space around the unit for cooling and please do not place the TUBE ULTRAGAIN on high temperature devices such as power amplifiers etc to av...

Page 8: ...CLIP LED warns you to reduce the gain with the MIC TRIM control so as to avoid distortion caused by overloading During normal operation the LED should not light up at all 4 The MIC TRIM control is ena...

Page 9: ...RAGAIN in a range from 20 to 2 dB The 0 dB marker corresponds to the studio reference level of 4 dBu Set the LEVEL control so that the level meter just touches the red zone Always try to optimize the...

Page 10: ...H PASS switch OFF LEVEL control 0 dB Tab 2 1 Basic setup of the TUBE ULTRAGAIN Reduce the volume level of the subsequent audio system to a minimum and connect a microphone to the XLR input connector o...

Page 11: ...to eliminate low end signal portions such as rumble or pop noise or other interference frequencies Often such frequencies have very high amplitudes and do not only deteriorate the sound quality but c...

Page 12: ...nstruments particularly those rich in upper harmonics The source material is enriched in sound volume and brilliance Enhanced depth makes it easier to locate individual instruments Vocal sounds gain i...

Page 13: ...ource to be calculated log decimal logarithm As can be seen human hearing has a very wide dynamic range of about 130 dB which surpasses the range of a DAT or CD player with an approximate range of 96...

Page 14: ...determined by the levels of the internal operating voltages if they are exceeded audible signal distortion is the result Although in theory the usable dynamic range sits between these two limits it is...

Page 15: ...t developments in tube technology were reported between 1904 and 1906 It was a research task of that time to find a suitable method for receiving and rectifying high frequencies On April 12 1905 a cer...

Page 16: ...rons When a positive dc voltage is applied to the other electrode anode the negative electrons start to wander from the cathode to the anode With reverse polarity between cathode and anode a current f...

Page 17: ...with frequencies of 2 f 3 f etc integral multiples of the original frequency are produced These new frequencies are referred to as upper harmonics grouped as odd and even harmonics Unlike the transist...

Page 18: ...the actual tube effect be added gradually The more you turn the Warmth control to the right the more tube sound will be added to the original signal 4 8 Studio applications In a recording studio tube...

Page 19: ...pter thoroughly phantom power can damage the microphone if used improperly Fig 4 9 Functional diagram of phantom power supply We speak of phantom power when a microphone cable is used to carry several...

Page 20: ...und the unit for cooling and please do not place the TUBE ULTRAGAIN on high temperature devices such as power amplifiers etc to avoid overheating 5 2 Mains connection The mains connection of the TUBE...

Page 21: ...d operate the TUBE ULTRAGAIN During installation and operation the user must have sufficient electrical contact to earth Electro static charges might affect the operation of the TUBE ULTRAGAIN Fig 5 1...

Page 22: ...variable 20 dB to 20 dB Warmth variable cold to warm Function switches 48 V engages the phantom power Mic Line switches from line to microphone preamp Phase reverse phase reversal 180 High Pass engag...

Page 23: ...aced within 30 days of receipt of 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 national or local leve...

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