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Mid Contour: This switch, when engaged, will activate a preset EQ curve that will offer a great starting point for “dialing in” your sound. All other EQ controls (unless bypassed) will still act normally in tandem with this circuit. TK-40 Technical Specifications TK-40 Preamp Power Supply: 9 Volt Output: 220mV EQ Control BASS (60Hz): ± 10 dB MIDDLE(400Hz): ± 3 dB (Mid Switch OFF) MIDDLE(800Hz): ± 6 dB (Mid Switch OFF) MIDDLE(400Hz): ± 13 dB (Mid Switch ON) MIDDLE(800Hz): ± 8 dB (Mid Switch ON) TREBLE(10KHz): ± 12 dB Low Battery: 6.7 Volt Notch Frequency: 65~105Hz...
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Get the Most from Your Guitar Tuner: This button controls the built-in tuner’s on/off function. Simply press the The Takamine TK-40 acoustic guitar preamp is designed specifically for your Takamine button once to activate the tuner (even if the guitar is not plugged in) and the tuner display will light. When you play a string the tuner will display the note name of guitar to provide the flexibility and control you need in almost any performance or re- the pitch you’re playing. Then, simply adjust the pitch of your strings in the direction cording environment. The no-nonsense approach to functionality results in an amazingly of the flashing up or down arrow to the right of the note name. As you approach transparent, responsive, and easy-to-use preamp that will let you “dial in” your sound the correct pitch, the flashing speed slows until you are in tune and both the arrows in moments. illuminate to form a diamond. The Anatomy of the TK-40 When the tuner is active, pressing the tune button a second time enables you to tune The Takamine TK-40 preamp is designed to be easy to use, yet flexible enough any ap- to a arbitrary reference pitch. For example, if you are attempting to play with some plication. Please refer to the figure below which will provide you with an easy reference other out-of tune instrument, tune one string of your guitar to that instrument while for the function and use of each control and feature. the tuner is on. Once tuned, press the Calibrate button and the tuner will adjust its reference frequency allowing you to tune the rest of your strings accurately. When the tuner is turned off, it will revert to the standard A=440Hz setting. To save battery power, the tuner will automatically turn off after about two minutes of operation and may be reactivated by pushing the tuner button again. If you finish tuning before the tuner automatically turns off, you may turn off the tuner manually by simply holding down the tuner button for at least two seconds. Low Batt LED: A circuit within the TK-40 tracks the life of your battery. When your battery voltage becomes low enough the begin to affect the quality of your sound, this LED will illuminate.
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