Related Manuals for TDM-Audio 30GE-2
Summary of Contents for TDM-Audio 30GE-2
-
Page 1: Graphic Equalizer
A U D I O 30GE-1 30GE-2 GRAPHIC EQUALIZER OWNER’S MANUAL TDM AUDIO INC. 7270 BELLAIRE AVE. NORTH HOLLYWOOD, CA 91605 (818) 765-6200 TDMAUDIO.COM... - Page 2 MPORTANT *** Read Before Using *** CAUTION: The following must be observed to prevent malfunctioning and/or possible equipment damage. • Before plugging the unit into the main AC line, make sure that all of the equipment following the equalizer output lines is turned off or all of the inputs are turned down.
-
Page 3: Table Of Contents
Table of Contents INTRODUCTION ...............................4 ................................4 ESCRIPTION ..............................4 BOUT ANUAL FUNDAMENTALS ..............................5 ..........................5 QUALIZERS ARE EEDED ............................6 QUALIZER ERMINOLOGY 30GE S ..........................6 ERIES PECIAL EATURES MOUNTING THE UNIT IN A RACK........................8 HOOKING UP THE EQUALIZER...........................9 ’ ..............................9 ..............................9 ASIC .............................9 NSTRUMENT QUALIZATION OPERATING THE EQUALIZER...........................11... -
Page 4: Introduction
Introduction hank you for purchasing the TDM 30GE series graphic equalizer. These units are made from the finest components and engineered to exacting standards. Precision components are used in all critical circuitry for the finest sonic quality and performance. To get the most out of your new equalizer, please take a few minutes to review this manual and familiarize yourself with the proper operation of the unit. -
Page 5: Fundamentals
Fundamentals n equalizer is used to alter the balance of frequencies in an audio signal. In some cases this is done to compensate for the poor acoustic characteristics of a room or the inaccurate frequency response of a speaker system. In other cases it is done to change the characteristic sound of a particular signal source such as a voice or a musical instrument. -
Page 6: Equalizer Terminology
Equalizer Terminology • Filter: An electronic circuit that changes the levels of some frequencies without altering the levels of others. • Frequency Band: The range of frequencies that a particular filter operates on. Graphic equalizers have one slider for each frequency band that they can control. •... - Page 7 • Notch Filters: Three sweepable 1/6 octave notch filters per channel provide up to 40 dB of selectable cut on a sweepable center frequency. These notch filters let the operator zero in on a problem frequency and remove it from the signal with minimum effect on neighboring frequencies.
-
Page 8: Mounting The Unit In A Rack
Mounting the Unit in a Rack DM 30GE series equalizers can be mounted in any standard 19” rack. The 30GE-2 requires 3 rack spaces while the 30GE-1 requires only 2. To make mounting easier, lay the rack on its back with the equipment front panels facing up. Remove any rack screws from the part of the rack where you are planning to mount the equalizer. -
Page 9: Hooking Up The Equalizer
Hooking Up the Equalizer nce your TDM equalizer is installed in the rack, you are ready to hook it up to your equipment. The method used to hook up any equalizer depends on how it will be used. We will try to give you the basics in this manual, but you may need to tailor the methods described here to your particular application. - Page 10 chorus or flanging units depending on the effect you are trying to achieve. They are typically inserted before delay and reverb units, though they are sometimes used to equalize just the return of a reverb or delay unit to achieve certain special effects. ©...
-
Page 11: Operating The Equalizer
Operating the Equalizer nce you have mounted your TDM 30GE series equalizer in a rack and connected all of the cables, the unit is ready for operation. At this time, make sure the input levels of the amplifiers are all the way down. Next, turn all equipment on. It is always best to turn the equipment on in the order of the signal path from input to output and to turn it off in exactly the reverse order. -
Page 12: Adjusting The Equalizer
filter has a different range of available frequencies. The high and low points of the range are marked at the top and bottom of the frequency sliders. • Notch Filter Cut Sliders: Each notch filter’s cut slider determines the amount of cut from 0 dB (all the way up) to 40 dB (all the way down). -
Page 13: Using The Notch Filters
With PA equalization, avoid boosting altogether if possible. It is sometimes advisable to boost the extreme lows (50 and 63 Hz) or the extreme highs (12.5 kHz and 16 kHz) to deal with a PA system that lacks extension on the ends of the spectrum, but if you do this, use only a slight boost. -
Page 14: Troubleshooting And Support
Troubleshooting and Support his section details various problems that you might encounter when using your equalizer, and the possible causes and solutions. It also tells how to contact TDM when you need service or support for your 30GE series graphic equalizer. No Signal Output Make sure that the unit is plugged in and that the power light on the front panel is illuminated. -
Page 15: Excessive Noise
correct supply voltage and frequency (US models are set up for 110 VAC at 60 Hz). Using a unit designed for 220 volt operation with a 110 volt outlet can cause distortion. One of the most common causes of distortion is improper gain staging. That means that some piece of equipment is operating at much lower than unity gain (the signal coming out of it is a lot lower than what is being fed in). -
Page 16: Contacting Tdm
the power amplifiers are plugged into a different outlet 100 feet away at the stage. The mixing console is connected by shielded cable to the amplifiers and the shield is grounded. This causes both the mixer and the amps to be individually grounded, and each gets another ground from the other through the shielded cable. -
Page 17: Specifications
Specifications Filter Type Constant Q Non-interactive Center Frequencies 20,25,31.5,40,50,63,80,100, TDM DESIGN INC. FILTER SHAPES 15.0 125,160,200,250,315,400, 14.0 500,630,800,1k,1.25k,1.6k, 13.0 12.0 2k,2.5k,3.15k,4k,5k,6.3k,8k, 11.0 10k,12.5k,16k. 10.0 Frequency Response +0-1.0 dB 10 Hz - 20 kHz Total Harmonic Distortion R L > 2 kohms <0.01% THD 1.00 Maximum Output Level...