Previous Page. Next Page. Also See for dbx dbx 12 Series Operation Manual 45 pages. Dbx pro dual channel 15 band equalizer specification sheet 2 pages. When all the sliders are in the center detented position the output of the equalizer is flat. Page 8: Ear Anel Escriptions Rear Panels - dual channel 31 band graphic equalizer - dual channel 15 band graphic equalizer Power Switch: Switches the power on and off. Always make audio connections with the power switch in the OFF position.
Page 9: I Nstallation C Onsiderations The dbx 12 Series Graphic Equalizers are useful audio signal processing tools in situations where precise frequency control is required across the audible frequency spectrum. When used with an audio spectrum analyzer the EQs can tune any acoustical environment -- from the studio to the concert hall -- to stop ringing, increase clarity, and flatten the overall frequency response of the environment. A real-time spectrum analyzer or other types of audio environment analyzers are very useful in determining the amount of equalization needed.
Each unit has been tested and burned-in at the factory. No adjustment of any type should be required throughout the life of the unit.
If circumstances arise which necessitate repair, we recommend that your EQ be returned to the factory. If you require technical support contact Customer Service. Be prepared to accurately describe the problem. Know the serial number of your unit printed on a sticker attached to the chassis of the unit. Contact information is printed on the back cover of this manual. Page 13 S.
Sandy, Utah Page 23 Adresse des Herstellers: S. Page Einleitung 1. Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppin. Explosionsfara vid felaktigt batteribyte. I ntroduction. Congratulations on your purchase of a dbx graphic equalizer. All dbx graphic equalizers are high performance multi-functional units designed to deliver all the flexibility and power that professional users demand.
We recommend that you take a moment to read through this operation manual. It provides information that will assist you from system set-up to EQ applications. The 12 Series Equalizers include the following features:. If any of these items are missing please contact dbx customer service at the number provided on the back cover of this manual. Input Gain Control: This control sets the signal level to the equalizer. EQ Bypass: This switch removes the graphic equalizer section from the signal path.
See Block diagram on Page 8. Note that bypass mode only effects the graphic equalizer section of the 12 Series EQs. The input gain and and low cut controls remain unaffected when the EQ is bypassed. This is to prevent acciden - tal activation of the switch, possibly causing damage to other sound system components. It monitors the level at the output of the equalizer after all other processing.
When all the sliders are in the center detented position the output of the equalizer is flat. The frequency band centers of the are marked at. The 12 Series Equalizers have balanced inputs and outputs that can be used with any balanced or unbalanced line-. For more specific information about cabling possibilities, please refer to the section entitled.
Install the EQs in a rack with the rack screws provided. It can be mounted above or below anything that does not generate excessive heat. All three types of connectors for the inputs and outputs can be used for balanced or unbalanced connections. The use of more than one connector at a time for the inputs could unbalance balanced lines, cause phase cancel - lation, short a conductor to ground, or cause damage to other equipment connected to the equalizer.
Note: Be sure to reduce audio levels at the power amplifiers when changing the setting of this switch as it may generate an audible transient. Connect the AC power cord to the AC power receptacle on the back of the equalizer. Route the AC power cord to a convenient power outlet away from audio lines. The unit may be turned on and off from the rear panel.
Since the 12 Series Equalizers consume a relatively small amount of power, the units may be left on continuously. R ear P anel D escriptions. Power Switch: Switches the power on and off. Always make audio connections with the power switch in the off position.
Chassis Ground Lift Strap: By removing the jumper connecting the two screws on the barrier strip, the chassis ground is separated from the circuit ground of the equalizer. When lifting the ground strap, you must make a connection from the circuit ground terminal to some other ground point in your audio system in order for the equalizer to function properly.
I nstallation C onsiderations. The equalizers can be used with either balanced or unbalanced sources, and the outputs can be used with either balanced or unbalanced loads, provided the proper cabling is used. A balanced line is defined as two-conductor shielded cable with the two center conductors carrying the same signal but of opposite polarity when referenced to ground.
An unbalanced line is generally a single-conductor shielded cable with the center conductor carrying the signal and the shield at ground potential. Most bal - anced 3-conductor cables have the shield connected at both ends.
This can result in ground loops which cause hum. If hum persists try disconnecting the shield on one or more of the cables in the system, preferably at the input of a device, not at the output. O peration and A pplication N otes. The dbx 12 Series Graphic Equalizers are useful audio signal processing tools in situations where precise frequency control is required across the audible frequency spectrum. When used with an audio spectrum analyzer the EQs can tune any acoustical environment -- from the studio to the concert hall -- to stop ringing, increase clarity, and flatten the overall frequency response of the environment.
A real-time spectrum analyzer or other types of audio environment analyzers are very useful in determining the amount of equalization needed. Insert the graphic equalizer between the signal source usually a mixer and the power amplifiers or the crossover if there is one. Adjust the level and equalization as required to yield the desired system response. The long throw fad - ers of the EQs allow very precise settings of the equalization for accurate equalization curves.
For optimum signal-to-noise response, the gain structure of the sound system must be properly set up. Each compo - nent of the sound system should be set at its nominal operating level, starting with the first element in the system, usually a mixing console. Each element should be run at its nominal operating level in order to take advantage of the maximum signal-to-noise properties of that element.
Loudspeaker amplifiers, as the last element in the chain, should be set only as loud as necessary, in order to avoid inducing unnecessary noise into the system. The dbx 12 Series EQs are all solid-state products with components chosen for high performance and excellent reli- ability.
Each unit has been tested and burned-in at the factory. No adjustment of any type should be required throughout the life of the unit. If circumstances arise which necessitate repair, we recommend that your EQ be returned to the factory.
If you require technical support contact Customer Service. Be prepared to accurately describe the problem. Know the serial number of your unit printed on a sticker attached to the chassis of the unit. Welcome to ManualMachine. We have sent a verification link to to complete your registration. Log In Sign Up. Forgot password? Enter your email address and check your inbox. Please check your email for further instructions.
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