Pro Tube IX
27
Two switches LOW BOOST and HIGHBOOST
to pre-adjust the basic sound characteristics.
Te n faders
35/70/140/210/420/730/1.2k/2.5k/5k/10k Hz
to amplify/soften the respective frequency
band by +/-12 dB.
You should generally adjust the graphic EQ to
approximately 0 dB. This means boosts and cuts
should be effected with moderation.
When adjusting the faders mostly within the
positive area (1) the OL LED of the master
section might illuminate, which means you
enter the overload range before the master
control. In this case reduce OUTPUT from
channel 2. If the LIMITER is activated and
threshold appears too high, readjust the EQ
curve to lower levels (2). Reducing GAIN
would result in a worse S/N ratio and can
eventually not be recommended. Should you
find the threshold is too low, i.e. more intense
compression is desired, shift the EQ curve
further to the positive area.
CHANNEL 2 - SOLID STATE
1. Make sure that loudspeakers capable of sustaining
the load of a bass signal are connected to the
SPEAKER OUT sockets. The speaker cables
should meet a cross-section of at least 2 x 1.5 mm.
2. Check that the mains supply has been plugged
in and that all external (effects) units possibly
used are correctly connected and operational.
3. Select the mode in which you wish to operate
(Fullrange/BiAmp, Mono/Stereo).
4. Set the MASTER control to zero.
5. Plug your bass guitar into the amplifier's
INPUT with a shielded line-cable.
6. Press the POWER switch to turn the device on.
7. S witch MUTE off and the red LED will
extinguish. (Should the CH. SELECT switch
be set to channel 1, it will take a few seconds
before a signal can be processed, as the tubes
must be heated first.)
8. Turn all volume controls of your bass guitar on
to their maximum.
9. Adjust the GAIN control until the (loudly)
played bass signal illuminates the OK LED.
10.Set both OUTPUT controls to their
positions 8.
11. Set the MASTER control to the volume you
wish to play at.
12.Adjust the controls and switches of both
channels according to your sound conceptions.
If it appears necessary, reduce OUTPUT again
with the appropriate controls. The OL LED
might actually flash only occasionally, but it
should not remain permanently lit.
13. Balance the levels from one channel to another
with the OUTPUT controls and set the EFF.
MIX of the parallel stereo loop for both
channels to regulate the amount of effects
within the signal path.
14. If necessary readjust balances on the
rear panel.
IMPORTANT:
Make sure that gain of the elected louder channel
is correctly determined and occasionally
illuminates the OL LED, as either full power can
actually not be used (level set too low), or
undesired distortions might appear (level set too
high).
GETTING STARTED
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