Samson 210C User Manual

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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 configured 

as directly off 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.