Instruction/ maintenance manual of the product T1951 Behringer
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TUBEULTRA-Q ® T1951 www.behringer.com Version 1.1 N ovember 2001 Users Manual ENGLISH.
2 TUBE UL TRA-Q T1951 This symbol, wherever it appears, alerts you to important operating and mainte- nance instructions in the accompanying literature. Read the manual. SAFETY INSTRUCTIONS C AU T I ON : To reduce the risk of electric shock, do not remove the cover (or back).
3 TUBE UL TRA-Q T1951 FOREWORD Dear Customer, We thank you for expressing your confidence in BEHRINGER products by purchasing the BEHRINGER TUBEULTRA-Q.
4 TUBE UL TRA-Q T1951 T1951 TUBEULTRA-Q ® 2 x 4-Band Parametric Tube Equalizer s 4-band parametric stereo equalizer with selected 12AX7 tubes s ULTRA-TUBE circuitry (UTC) adds desired amount of wa.
5 TUBE UL TRA-Q T1951 T ABLE OF CONTENTS 1 . INTRODUCTION .. ................................................................................................................... 6 1.1 The concept ........................................................
6 TUBE UL TRA-Q T1951 1. INTRODUCTION With the BEHRINGER TUBEULTRA-Q T1951 you have purchased an innovative device. Parametric equalizers represent the most advanced form of equalization systems. With the TUBEULTRA-Q you have purchased an extremely musical and flexible device.
7 TUBE UL TRA-Q T1951 Be sure that there is enough space around the unit for cooling and please do not place the TUBE ULTRA-Q on high temperature devices such as power amplifiers etc.
8 TUBE UL TRA-Q T1951 4 The FREQUENCY control selects the filters center frequency, which can be freely chosen within the frequency range of the associated band. 5 The LEVEL control determines the amount of level boost/cut. The setting range is from -15 to +15dB.
9 TUBE UL TRA-Q T1951 12 SERIAL NUMBER . Please complete and return the warranty card within 14 days of the date of purchase. Otherwise, you will lose your right to the extended warranty. Alternatively, you can register online at our website under www.
10 TUBE UL TRA-Q T1951 like feedback. In live applications uncontrolled feedback can cause damage to loudspeakers and amplifiers. By means of the INPUT control you can adapt the sensitivity of the TUBE ULTRA-Q to the input level. The sensitivity can be varied within a range of -15 to +15dB.
11 TUBE UL TRA-Q T1951 Fig. 2.1: Various filter qualities 2. 4 Setting of the tube stage With the settings you have achieved so far a considerable sound improvement can be made. You may not know this, but you have already benefitted from the tube stage of the TUBEULTRA-Q.
12 TUBE UL TRA-Q T1951 Because of the wide overlap possibility of the different filters, the effect of two filters can be added together if so desired. This way an even greater attenuation or boost can be achieved. When notching out frequencies try to make the band as small as possible.
13 TUBE UL TRA-Q T1951 Center freque ncy (Hz) 1/3 octave Effects on mu sic 31 to 63 Fundam entals of bass dr um, tuba, do uble bass and or gan. Thes e frequencies give mus ic a se nse of power. If over- emphas ized they mak e the m usic "m uddy".
14 TUBE UL TRA-Q T1951 Center frequency (Hz) 1/3 octav e Effects on voice 40 to 125 Sense of power in som e outstanding bass s ingers. 160 to 250 Voice fundam entals. 315 to 500 Im portant for voic e quality. 630 to 1k Impor tant for voice naturalness.
15 TUBE UL TRA-Q T1951 It is quite obvious that compromises must be made to meet these requirements. In rooms with poor acoustics or a high level of background noise, both natural sound and acoustic power can usually not be realized simultaneously. Priority must be given to one of these quality-improving measures.
16 TUBE UL TRA-Q T1951 In complex sound reinforcement systems comprising different speakers located in varying acoustic environments (e.g. theaters with front speakers, various side-fill speakers and/.
17 TUBE UL TRA-Q T1951 kind be identified and eliminated, before the actual musical fine-tuning of the sound image takes place. Still, extreme settings can be realized by overlapping the frequencies of the individual bands.
18 TUBE UL TRA-Q T1951 allowed for loss-free copying of audio signals. As digital media were enhanced, however, many people began to miss the warmth, power and liveliness they knew from analog recordings. This is why purists still today consider digital recordings as sterile in sound.
19 TUBE UL TRA-Q T1951 In a triode the capacitance between grid and anode is a problem with regard to high frequencies and large amplification factors. For this reason, the pentode has a positively charged screen grid between the control grid and the anode.
20 TUBE UL TRA-Q T1951 4.5.5 UTC circuit In Out WARMTH Fig. 4.4: UTC circuit The TUBEULTRA-Q splits up the audio signal applied at the input, and processes it differently for both signal paths. Each of the two tube halves amplifies the original signal and the signal modified in its phase spectrum (twin triode).
21 TUBE UL TRA-Q T1951 Video T ape Compact Disc Analog Records FM Radio Digital T ape (16 Bit) Analog T ape dB 100 75 50 25 Analog Mixing Console Fig. 4.5: Dynamic range of various media 5. INSTALLATION 5. 1 Rack mounting The BEHRINGER TUBEULTRA-Q fits into two standard 19" rack units of space.
22 TUBE UL TRA-Q T1951 Critical applications may require to build up a transformer-balanced configuration for the output signals, so as to avoid interference from ground loops or potential differences. For this purpose, we offer our high-quality output transformer OT-1 as a retrofit kit.
23 TUBE UL TRA-Q T1951 6. SPECIFICATIONS Audio input Connectors XLR and 1/4" TRS Ty pe RF filtered, servo-balanced input stage Impedance 50 k Oh m balanced, 25 kOhm unbalanced Max.
24 TUBE UL TRA-Q T1951 7 . WARRANTY The information contained in this manual is subject to change without notice. No part of this manual may be reproduced or transmitted in any form or by any means, e.
An important point after buying a device Behringer T1951 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Behringer T1951 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Behringer T1951 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Behringer T1951 you will learn all the available features of the product, as well as information on its operation. The information that you get Behringer T1951 will certainly help you make a decision on the purchase.
If you already are a holder of Behringer T1951, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Behringer T1951.
However, one of the most important roles played by the user manual is to help in solving problems with Behringer T1951. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Behringer T1951 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
