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12. If you need to connect the Hydrive Combo to a
PA system or a recording mixing console, connect
a cable between the rear-panel Direct Out and a
Line-level input on the mixer. (See E on page 8 in
this manual for more information on the use of the
Hydrive Combo Direct Out). The signal that is sent
from the Hydrive’s Direct Output can be congured
as directly o the input or after the pre-amp by using
the PRE / POST switch. If PRE is selected, the signal
sent to the direct output is directly from the Input. If
POST is selected, the signal that’s sent to the direct
output includes the Level, Compression, Shape and
Overdrive plus the Bass, Treble and Equalizer. If you
experience a ground loop hum when connecting
the Hydrive combo to a PA system, try setting the
Ground Lift switch to the Lift position.
13. The Aux Input can be used with a portable CD
player, cassette, mini disk or MP3 player to jam with
pre-recorded tracks or learn a riff from a favorite
tune. In fact, you can plug any line level signal into
the CD input including the signal from a keyboard
or drum machine. Connect the CD player or other
Line level device to the CD Input using standard RCA
cable. You will want to use the volume control on the
CD player or other Line level device to set the bal-
ance between the track and your bass. So, start with
the volume control all the way down and slowly raise
it until you reach a good balance with your bass.
14. The Hartke Hydrive combo has a footswitch
jack located on the rear chassis panel. Connect the
optional Hartke FS2 dual-button footswitch to the
rear panel Footswitch jack for increased control
when performing on stage. Switch #1 allows you to
switch between the Bass Attack Overdrive on and
off. Switch #2 on the FS2 will control the on and off
for the Shape control.
If you encounter difficulty with any aspect of setting
up or using your Hartke Hydrive bass combo ampli-
fier, you can call Hartke Technical Support (1-800-
372-6766) between 9 AM and 5 PM EST, or contact
your local distributor if you purchased your Hydrive
combo outside the United States.
Setting Up and Using Your Hartke Hydrive
Combo Bass Amplifier