Ashdown 12-BAND 600 User Manual - Page 7
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ASHDOWN ENGINEERING - 12-BAND 600
USER GUIDE
Above this frequency range you will find it is better not to boost the signal as this
will mainly emphasise any hiss present. This hiss will not be masked by the bass
signal when playing due to the very small amount of bass guitar frequency content
at 10 to 15kHz.
Use the 30Hz and 40Hz sliders sparingly unless you have a massive stack of
speakers available, and the power amplifiers to drive them. You will find that rolling
off the bottom end by using these two sliders will allow you to play at a far greater
volume level without the speakers complaining.
Try to keep the graphic sliders balanced around 0dB and in a smooth flowing curve
from one slider to the next, and remember that after adjusting the graphic you may
need to re-set the INPUT GAIN.
DI - The DI or DIRECT INJECT socket is a balanced, low impedance XLR output
intended for connection into the Microphone Input on one channel of a mixing
desk. This is to carry the signal to the P.A. system for larger gigs. It is balanced and
low impedance to ensure that no noise is added to the signal on the way to the
mixer. The level of this signal has been set to be similar to that from a microphone so
that it will work without overloading the input on a desk that has no input Pad switch.
The signal connections are as follows: Pin 1 = Ground, Pin 2 = Signal +, Pin 3 =
Signal -. The DI signal can be switched to be PRE or POST EQ. PRE EQ is before any
of the amplifier's facilities or EQ but after the INPUT GAIN control. POST EQ is after
all internal facilities and includes the external effects loop.