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Art DUAL TUBE EQ, User Manual

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ing sound quality. They may sound better, they may sound
worse. The choice is yours. Please realize that unauthorized
alterations to the Tube EQ will void the warranty.

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The Tube EQ is intended for use with line level sources. The
proper placement of the Tube EQ in a signal chain is: after a
mic/line preamplifier, after a direct output or bus output from a
console, after the output of a tape deck, or in the insert point of
a mixer.

The Tube EQ has gain and it is possible to plug an instrument
directly into it. However, the Tube EQ does not have enough
gain to plug a microphone into it.   

 

 

  

   

 

 

 

 

 

 

   

 

     

   

 

 

     

   

   

 

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Summary of Contents for DUAL TUBE EQ

Page 1: ...TUBE EQ PROFESSIONAL TUBE PARAMETRIC EQUALIZER USER S GUIDE ...

Page 2: ...trol 9 Clip Indicator 9 Output Level Control 9 Instruments and the Audio Spectrum 10 Low Frequency Control 10 Low Shift Switch 11 Lo Mid Frequency Control 11 Low Mid Shift x10 Switch 11 Hi Mid Frequency Control 12 Hi Mid Shift x10 Switch 12 High Frequency Control 12 High Shift Switch 13 Rear Panel Connections 13 Power Switch 13 Input 14 Output 14 Tube Replacement 14 Applications 15 Specifications ...

Page 3: ...o and live sound engineers the Tube EQ possesses flexibility and sound that is not available from any other product on the market at any price The Tube EQ was designed and construct ed with the best components assuring a lifetime of quiet reli able performance The Tube EQ offers The award winning A R T SOUND Tube based four band equalization Selectable Low shelving filter 40Hz or 120Hz Selectable ...

Page 4: ... Serial Number 128 ________ O Ov ve er rv vi ie ew w Great recordings and great mixes are made from great sounds With the exception of some classical and environmental record ings equalization plays a large role in creating tweaking and capturing great sounds in contemporary music A good equalizer will make good sounds sound better and more importantly bad sounds sound better Since we don t live i...

Page 5: ...their onboard EQ is nearly always adequate for tweaking a good recorded track during mixing the simple truth is that the Tube EQ is a better sounding and more flexible equalizer Mixer manufacturers need to make trade offs to keep prices down while keeping performance up Imagine the price of your mixer if each channels EQ cost over 200 and we re not talking about those of you who have one of those ...

Page 6: ...etric W Wh ha at t i is s t th he e b be es st t w wa ay y t to o u us se e E EQ Q There are two schools of thought on EQ 1 Use as much as you need to make things sound good 2 Don t use any EQ Most people follow the suggestion of if it sounds good it is good You need to use your ears and judge for yourself as their are no steadfast rules for EQ ing Here are a few pointers to guide you Always tweak...

Page 7: ...frequencies after they ve been recorded but you can t add frequencies that weren t recorded Always be prepared for the drummer who says he loves the John Bonham kick drum sound lots of low end power and ambience you got when recording but during the mix decides he wants to sound like Metallica more click than punch If you get the sounds right when you record the tracks you shouldn t be spending a ...

Page 8: ...ions to and from the Tube EQ are balanced XLR Pin 2 Hot Pin 3 Cold Pin 1 Ground and unbalanced 1 4 Tip Hot Sleeve Ground We recommend using only high quality cables equipped with the appropriate connectors I In ns st ta al ll la at ti io on n The Tube EQ may be employed in a number of setups including Between a microphone line preamplifier and a mixer digital multi track recorder DAT machine hard ...

Page 9: ...eds to warm up before being used Allow one to two minutes for the tubes to reach proper operating temperature before using It is normal for the Tube EQ to be warm The aluminum chassis is used for heat dissipation It is recommended that the Tube EQ be installed in an area where there is adequate ventilation If the Tube EQ fails to power up when the power switch is turned on check to see that its po...

Page 10: ... indicator will illuminate just before any gain stage of the Tube EQ reaches audible distortion Typically this will indicate clipping at the input stage which is corrected by turning down the input gain control However it will also indicate any distor tion caused by excessive EQ ing In other words if turning down the input gain control doesn t make the clip indicator turn off check the frequency b...

Page 11: ...e ec ct tr ru um m The following chart gives you an idea of where certain instru ments lie in the audio spectrum If an instrument isn t listed use the one which most closely resembles it The descriptions in quo tations are references for you to experiment with For example if you have a kick drum with no click from the beater try boost ing around 2 2 5KHz Since every instrument microphone and room ...

Page 12: ...ition the corner is 120Hz L Lo o M Mi id d F Fr re eq qu ue en nc cy y C Co on nt tr ro ol l The Lo Mid control is a dual concentric pot meaning there are two controls one outer and one inner The outer control is used to select a frequency while the inner control is used to apply 12dB of gain The Lo Mid control can cover two fre quency ranges depending on the position of the Shift x 10 switch Thes...

Page 13: ...aning they cover the same frequencies in the 200Hz to 2KHz range This is intentional and is another of the powerful features of the Tube EQ This feature allows either or both con trols to be used in this range This is extremely useful if you want to cut at 200Hz and boost at 350Hz H Hi ig gh h F Fr re eq qu ue en nc cy y C Co on nt tr ro ol l The High Frequency control adjusts a shelving filter wi...

Page 14: ...werful features of the Tube EQ This feature allows you the ultimate in flexibility For example on cymbals try boosting 18KHz with the High control while cutting 20KHz with the Hi Mid control for a very bright yet noise free result R RE EA AR R P PA AN NE EL L C CO ON NN NE EC CT TI IO ON NS S P Po ow we er r The Power switch applies and removes power from the unit The Tube EQ should be turned on o...

Page 15: ...he Input and Output Level controls but the front panel 0 indicators will not be accurate unless using common connectors both XLRs or both 1 4 N No ot te e If you experience a hum when using both output connec tors simultaneously one to the console and one to an instrument amp a ground loop may be the problem To remedy this prob lem disconnect the ground wire pin 1 from the XLR cable plugged into t...

Page 16: ...e EQ is intended for use with line level sources The proper placement of the Tube EQ in a signal chain is after a mic line preamplifier after a direct output or bus output from a console after the output of a tape deck or in the insert point of a mixer The Tube EQ has gain and it is possible to plug an instrument directly into it However the Tube EQ does not have enough gain to plug a microphone i...

Page 17: ...improvement A R T reserves the right to make changes in design or make additions to or improvements upon this product without any obligation to install the same on products previously manu factured In other words specifications are subject to change without notice Designed and manufactured in the United States of America Applied Research and Technology Inc 716 436 2720 Phone 215 Tremont Street 716...

Page 18: ...ser vice center accompanied by proof of purchase date in the form of a valid sales receipt EXCLUSIONS This warranty does not apply in the event of mis use or abuse of the product or as a result of unauthorized alter ations or repairs This warranty is void if the serial number is altered defaced or removed A R T reserves the right to make changes in design and make additions or improvements upon th...

Page 19: ...e unit in its original carton or reasonable substitute The packing box is not recommended for a shipping carton Put the packaged unit in another box for shipping Print the RA num ber clearly under the address 5 Include with your unit a return shipping address we cannot ship to a P O Box a copy of your purchase receipt a daytime phone number and the description of the problem 6 Ship the unit to A A...

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