Instruction/ maintenance manual of the product GT-80D Crate
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QuadraDrive tm Amplifier with Digital Sound Pr ocessing OWNER’S MANUAL.
GT -80D QuadraDrive tm 2 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. A TTENTION RISQUE D'ELECTROCUTION NE PAS OUVRIR ATTENTION: POUR REDUIRE D'ELECTROCUTION NE PAS ENLEVER LE COUVERCLE.
GT -80D QuadraDrive tm GT -80D QuadraDrive tm 3 ABOUT THE GT -80D: The Crate GT -80D QuadraDrive tm with Digital Sound Processing is truly unique and versatile, offer- ing you more performance and flexibility than any other compact amplifier . Start with two completely separate preamp stages: Solid State and Tube .
GT -80D QuadraDrive tm 4 1: INPUT : Connect your guitar here using a shielded instrument cable. OVERDRIVE Gains: 2: TUBE GAIN: This serves as the gain control for the Overdrive Channel’ s T ube preamp section, giving you con- trol over the compression and overdrive characteristics of the GT -80DSP’s input tubes.
GT -80D QuadraDrive tm 5 9: CLEAN LED: This LED glows green when the Clean Channel is chosen, and along with LED #19, gives you a visual sign that the Clean gains, tone controls and volume control are active. 10: SOLID ST A TE GAIN: This serves as the gain control for the Clean Channel’s Solid State preamp section.
GT -80D QuadraDrive tm 6 18: HIGH: Adjust the Clean Channel’s high frequency output with this control: in the center position the high fre- quency output will be “flat” (no boost or cut). T urning the control to the left reduces the high frequency output; turn- ing it to the right increases the high frequency output.
26: POWER CORD: Firmly plug the supplied, heavy-duty grounded power cord into this receptacle. When in use, be sure this cord is properly plugged into a safely-wired, grounded 120 volt, 60 cycle AC power outlet.
GT -80D QuadraDrive tm 8 The Digital Sound Processor ’s 32 position Mode control allows you to instantly access the exact type of effect you want - from classic reverberation to radical “backwards” sounds - for any of the preamp or channel settings.
GT -80D QuadraDrive tm 9 The table below lists each of the 32 settings of the GT -80D’s Mode control, along with a brief explanation of each effect. T able of Settings: ABOUT THE DIGIT AL SOUND PROCESSOR: NO. NAME TYPE DESCRIPTION 0 OFF NONE Bypass—no signal processing occurs.
GT -80D QuadraDrive tm 10 (Semi-) T echnical Description: ABOUT THE DIGIT AL SOUND PROCESSOR: “What is reverb, anyway?” Imagine yourself seated in a small, lightly furnished room, about to enjoy a private performance by your favorite guitarist.
GT -80D QuadraDrive tm 11 ABOUT THE DIGIT AL SOUND PROCESSOR: Block Diagrams: Sound Amplitude T ime TYPICAL REVERB RESPONSE TO AN IMPULSE EARL Y RELECTIONS REVERB (DECA Y) TIME PRE- DELA Y REVERB "T AIL" GA TED REVERB REVERSE REVERB EFFECT Time domain response of a reverse reverb, impulse input.
GT -80D QuadraDrive tm 12 SP ARKLING CLEAN: FUNKY CLEAN: W ARM TUBE: BLUESY DIRT : OUT OUT OUT OUT OUT IN OUT IN SOME SUGGESTED SETTINGS:.
GT -80D QuadraDrive tm 13 W ARM TUBE CRUNCH: HOT TUBE LEAD: SOLID ST A TE LEAD: SOLID ST A TE CRUNCH: IN IN IN IN IN OUT IN OUT.
GT -80D QuadraDrive tm GT -80D QuadraDrive tm 14 SYSTEM BLOCK DIAGRAM: LED MODE INPUT 12" CRATE CUSTOM SPEAKER EXTERNAL SPEAKER LEVEL POWER AMP LINE OUT LINE IN LED LED LED LED TUBE CLEAN GAIN TUBE 0VERDRIVE GAIN S.
GT -80D QuadraDrive tm.
Output Power Rating 80 watts RMS @ 5% THD 8 ohm load, 120 V AC Gain 88dB, tones @ “5” @ 1kHz T one Control Range Overdrive Channel Low 24dB range @ 100Hz Mid 10dB range @ 1kHz High 20dB range @ 5k.
An important point after buying a device Crate GT-80D (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Crate GT-80D 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 Crate GT-80D - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Crate GT-80D you will learn all the available features of the product, as well as information on its operation. The information that you get Crate GT-80D will certainly help you make a decision on the purchase.
If you already are a holder of Crate GT-80D, 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 Crate GT-80D.
However, one of the most important roles played by the user manual is to help in solving problems with Crate GT-80D. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Crate GT-80D 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
