Crate Amplifiers TD-70 User's Manual
Contents
1. TUBE DRIVEN GUITAR AMPLIFIER CRATE TD 70 TUBE DRIVEN GUITAR AMPLIFIER We would like to take this opportunity to thank you for selecting a Crate product and to tell you of our commitment to the design and manufacture of only the finest musical instrument amplifica tion equipment built for you the musician You have purchased one of the most innovative sound amplifi cation devices available today Your Crate amplifier gives you more performance features than ever before features that you the musician have asked for Your Crate amplifier is an American product manufactured at our factory in St Louis Missouri Only the finest available com ponents and materials are used in the manufacture of each amplifier All Crate amplifiers are subjected to seven or more inspection and testing steps to assure you of a high quality product The final test for each amp is conducted by a trained musician with the instrument for which the amp was designed Any unit that does not meet the standards of our musician s discriminating ear will not be passed Since all Crate products are designed developed and manufac tured through the cooperative efforts of engineers and profes sional musicians the end result is a product that responds to the musician s audio requirements and a product that will serve your needs for years to come ee00000 tt 1 2 3 4 5 6 Channel Select ou 7 8910 11 12 13 Tube Driven 70 TEttt2. ers must be rated minimally 8 ohms The TD 70 is equipped with a heavy duty grounded three wire power cord Be sure this cord is properly plugged into a safely wired grounded 120 volt 60Hz AC power outlet before use If your TD 70 was pur chased outside the United States refer to the rear panel for power ratings For your safety never attempt to defeat the ground connection on this cord TD 70 TECHNICAL SPECIFICATIONS Output Power Rating 70 wattsRMS 5 THD 8 ohm minimum load Speaker Size and Rating TD 70 Custom Design 12 TD 70S Celestion G12M 70 12 Input Impedance 230K ohms 0dB input 242K ohms 6dB input Maximum Input Signal 5 volts p p 0dB input Level Accepted 10 volts p p 6dB input Total System Gain Channel A 100dB 1KHzall controls at 10 Sub Focus Lead 0 Channel B 81dB 1KHzall controls at 10 Bright off Signal to Noise Ratio Channel A 42dB with all controls at 10 Sub Focus Lead 0 Channel B 63dB with all controls at 10 Bright off Sub Control 9dB Boost 80Hz Focus Control Proprietary circuit Lead Control 9dB Boost 3KHz Low Control 10dB Range 100Hz Mid Control 15dB Range 500Hz High Control 15dB Range 7KHz Input Power Requirements 120VAC 60Hz 200 watts max Preamp Tube 12AX7 Cabinet Size and Weight 17 1 2 H x 20 1 4 W x 9 3 4 D 34 Ibs Specifications subject to c
3. hange without notice CAUTION To reduce the risk of electric shock do not open chassis No user serviceable parts inside Refer servicing to qualified service personnel 47 597 01
4. tion with the bright switch 15 a very wide range of treble control for Channel B is possible 15 Bright affects the brilliance of the Channel B signal by accentuating ad ditional upper frequencies REVERB SECTION 16 Reverb Depth allows the apparent acoustical qualities of a room to be altered The TD 70 response can be transformed from a normally dry flat sound in the counterclockwise position to that of a concert hall when rotated clockwise FOOTSWITCH SECTION 17 The Footswitch Jack is to be used with the Channel Selector Reverb footswitch It is designed to light a footswitch with Channel Select and Reverb On LED s EFFECTS LOOP 18 The Line Out Jack is used to link the TD 70 to additional amplifiers or to connect the amp to a tape recorder Simply run a cable from the output of this Jack to the input of another amplifier or tape deck External speakers cannot be hooked up to this jack 19 The Line In Jack is used as a direct input to the power amp It can be used in conjunction with the Line Out jack to complete the effects loop When this jack is used the signal to the power amp from the pre amp is de feated POWER 20 The On Off LED is lit when the power to the amplifier is on 21 The On Off Switch applies power to the unit REAR PANEL FEATURES 22 The Auxiliary Speaker Input Jack not shown accepts a 1 4 speaker cable from any external speaker con figuration The external speak
5. ttttt ttt t 14 15 16 17 18 19 20 21 FRONT PANEL INPUT SECTION 1 0dB Input Jack accepts a standard 1 4 phone plug and is suited for any low to line level signal source 2 6dB Input Jack is a padded 6dB for accepting hotter inputs If both Jacks are used this input is not padded and will be equal to the 0dB input CHANNEL A CONTROLS 3 Drive adjusts the level at which the 12AX7 tube is driven This control al lows a full distortion range minimal distortion at 0 thick blues distortion at 5 and full blown metal crunch at 10 4 Level controls the overall volume of Channel A 5 Sub adjusts the amount of low fre quency tone in Channel A 6 Focus adjusts the general tone of Channel A Counterclockwise em phasizes mid range frequencies and clockwise emphasizes low and high frequencies 7 Lead adjusts the amount of high fre quency tone or presence in Channel A CHANNEL SWITCHING CONTROLS 8 The Red LED is the Channel A indi cator 9 The Channel Select switch controls channel switching It is disabled if an external footswitch is used In the footswitch jack 17 10 The Green LED is the Channel B indi cator CHANNEL B CONTROLS 11 Volume sets the overall volume level of Channel B 12 Low controls the amount of bass in the clean Channel B 13 Mid allows attenuation and boosting of the mid range 14 High controls the upper frequency tone of Channel B Used In conjunc
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