User manual ART TUBE EQ

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Manual abstract: user guide ART TUBE EQ

Detailed instructions for use are in the User's Guide.

[. . . ] TUBE EQ PROFESSIONAL TUBE PARAMETRIC EQUALIZER USER'S GUIDE Table of Contents Introduction Features Registration Overview EQ Tips Unpacking AC Power Hookup Audio Connections Installation Safety Precautions Powering Up Front Panel Controls and Indicators Bypass Switch Gain Control Clip Indicator Output Level Control Instruments and the Audio Spectrum Low Frequency Control Low Shift Switch Lo-Mid Frequency Control Low-Mid Shift x10 Switch Hi-Mid Frequency Control Hi-Mid Shift x10 Switch High Frequency Control High Shift Switch Rear Panel Connections Power Switch Input Output Tube Replacement Applications Specifications On-line Information Warranty Information Service Information 2 2 3 3 4 7 7 7 7 7 8 8 8 9 9 9 10 10 11 11 11 12 12 12 13 13 13 14 14 14 15 16 16 17 18 1 128-5004-101 Introduction Thank you for purchasing Applied Research and Technology's Tube EQ. The Tube EQ may be used anywhere you need equalization or frequency adjustments. Offering a superb level of sound quality, the Tube EQ will enhance the sonic textures of your audio system for years to come. While every EQ gives you the ability to alter the frequency characteristics of a signal, very few sound really good when doing so. [. . . ] It is important to remember to turn the Tube EQ on before any monitoring levels or power amps are turned on. This can cause the Tube EQ to produce a "thump" on power up and power down. Note: Like all tube-based equipment, the Tube EQ needs to warm up before being used. Allow one to two minutes for the tubes to reach proper operating temperature before using. 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 power cord is plugged into an active outlet. If the unit still fails to operate properly, turn it off and unplug it. FRONT PANEL CONTROLS & INDICATORS Bypass Switch A Bypass switch is included on the Tube EQ to enable you to remove it from your signal chain. When set to its "in" (bypass) 8 position, signal is allowed to pass from the input to the output with no equalization. Use the Bypass switch when setting the Tube EQ's input and output levels to achieve unity (no boost or cut) gain. Unity gain is achieved when the active level is the same as the bypassed level. Gain Control The Gain control sets the amount of input gain to the Tube EQ. Turn the control clockwise to increase gain and counterclockwise to decrease it. To maximize your signal to noise ratio, it is important to start with a unity gain setting (meaning that the level into the Tube EQ is the same as the level out of the Tube EQ). With the output level at its "0" position, adjust the input gain until the level is the same when the Tube EQ is bypassed and active. Clip Indicator The Clip indicator will illuminate just before any gain stage of the Tube EQ reaches audible distortion. The low shelving filter designed into the Tube EQ affects all frequencies below 10 the corner frequency when applying boost or cut. 40Hz is great for enhancing sub-low frequencies such as those in bass guitars and kick drums. Cutting 40Hz can also help to "clean up" mixes that sound muddy or "loose" in the low end. Boosting 120Hz can add "weight" or "beef" to a week vocal and cutting it can "thin out" a signal that takes up too much room in the low end. Low Shift Switch The Low Shift switch selects the corner frequency of the Low Frequency control. Lo-Mid Frequency Control The Lo-Mid control is a dual concentric pot (meaning there are two controls - one outer and one inner). [. . . ] 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. 15 A R T Tube EQ Specifications Dimensions: Weight: Frequency Bands: Low Shelf: Low-Mid Sweepable: High-Mid Sweepable: High Shelf: Gain/Frequency Band: Dynamic Range: Input Impedance: Output Impedance: Maximum Input Level: Maximum Output Level: Total Harmonic Distortion (THD): Tube: Power Requirements: 5. 25"D x 8. 5"W x 1. 65"H 5. 0 lbs 40Hz/120Hz Selectable 20Hz to 200Hz/ 200Hz to 2KHz 200Hz to 2KHz/ 2KHz to 20KHz 6KHz/18KHz Selectable +/- 12dB >90dB (no weighting) 20k ohms (XLR), 1M Ohm (1/4") 600 ohms (XLR), 300 Ohms (1/4") +20dBu (XLR) +27dBu (XLR), +22dBu (1/4") <0. 1% Hand Selected 12AX7a 100-125 VAC, 9W Export units configured for country of destination A R T retains a policy of constant product 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 manufactured. 215 Tremont Street Rochester, NY 14608 USA (716) 436-2720 (Phone) (716) 436-3942 (FAX) WE'RE ON-LINE! [. . . ]

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