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perfect! you just sent to me the copy in Italian witout even my specification!!!! so you are really smart cooperative and efficient. To my opinion the best place all over to get a manual of electronics!!!!
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Well Well Well!!!! Good manual perfect for my hobby!!! As Before you have done a very well done work!!!! Thank you
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Super nice! Good to have a manual in digital format.
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Great job supplying the manual.
Many of these products weerepretty obscure, so it was great that you had
the manual for it!
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Great manual, would not have been able to operate my machine without it!!
James Dawson August 18, 2012
400RB Series Sound Tips
The 400RB Series has several unique features which, if used properly, will obtain that sound you have been searching for.
Sound Tips
The Equalizer:
The Equalizer is used to fine tune your sound. When adjusting it, do it just a little at a time. These are active circuits, and small changes can make a big difference in your sound. With a little experimentation you will find that this equalizer is very easy to use, never sounds weird and provides you with a large variety of great sounds, unique to GK.
Boost/Master:
Turning up the Boost control, will add a little growl to your tone. This is an unmistakable GK trade mark sound, that you will grow to appreciate. Raising the Boost while lowering the Master will add more growl while keeping the sound level the same. Growl is actually a small amount of even order harmonic distortion, that sounds great through a woofer. For most playing situations, the Master is set between 12 & 3 o�clock. The cleanest sound is obtained by setting the Master above 12 o�clock, and going above 3 o�clock for maximum power situations.
Contour:
Increasing the Contour level will scoop out midrange frequencies while boosting the highs and lows. The sound, once again, is unique to GK and unavailable on any other Bass amp.
Direct Out:
The 400RB provides a low noise, high quality balanced direct out for connection to PA and recording consoles. With the Pre/Post EQ switch set to �Pre� (Out), the direct output signal is fed directly from our low noise, high headroom, FET input stage providing a low noise output superior to external direct boxes and impedance transformers. The Direct Output signal is only effected by the -10dB Pad, and Tuning Mute controls. This allows you to adjust your tone and volume on stage without changing the Direct Out signal level and confusing your sound man. Changing the Pre/Post EQ switch to �Post� (In), sends the �GK sound� and preamp response to the Direct Out jack. This gives you complete control over the Direct Out�s tone and volume. In addition, a Ground (Gnd) Lift switch is included to remove hum and buzz when connecting to equipment powered by a different ground system.
String Bass:
The way a Bass amp deals with the instrument low string is a critical part of it�s sound. In fact, a five string instrument requires an entirely different low end response than a four string instrument. No equalizer can make the necessary adjustments to accommodate both. However, the String Bass button on the 400RB Series does just that. When it is out, the 400RB is voiced like the 800RB (the world�s classic four string amp). Push it in and the 400RB is voiced for five string instruments. For some playing styles you may want it in, even with a four string instrument.
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