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XLR Balanced Output:
Unlike conventional DI outputs, this balanced configuration allows you to record directly
to any line input (i.e. tape, hard disk recording system, etc.). No mic-pre is required! The
output level has five positions to cover all possible recording and concert situations. Use
the -40db pre-eq setting in a concert situation where the house mixer is taking a signal into
the house-mixing console. The house mixer is now getting his feed after the preamp
stage, but can use appropriate EQ for the venue. The EQ on stage will still be controlled
by your settings. If the house mixer wants your EQ settings included in the mix, set the
control to -40 post-eq. The -40 level is the correct output level for going into a preamp
on a mixer.
0, +2 and +4 settings are provided for going directly to tape, or any line input.
If you
have cranked the input level on the preamp and used the (++) position on the deep switch,
the overall level of the preamp will be greatly increased, and 0db will be plenty of output
gain. If your settings are more conservative, the +2 or +4 settings will provide better
output levels.
Our balanced output uses the highest quality Jensen output transformer. If you hear any
ground noise, change the position of the ground lift switch on the back of the preamp.
Auxiliary Input:
Located on the rear panel. The extra input on the rear panel is useful in a permanent
studio or live rack set-up where one needs to access the unit from behind.
Input thru:
Use this to send the signal from your bass straight through to the input of another bass
head (not a power amp). For example, connect with a vintage bass amp that you want to
record with a microphone, while taking a direct signal from the DB 680. The signal sent
to the input of the amp is a straight pass thru from your bass, unaffected by the DB 680.
This pass thru is not muted by the footswitch.
Tuner Input:
This is another input pass thru, which is great to keep a tuner plugged into. Can be used
when all the other outputs are muted.
Footswitch:
Included with the preamp is a footswitch with which the player can select inputs one or
two. Also on the footswitch is a master mute control that mutes all output signals except
those going to the tuner input (an extremely useful feature in live or studio situations), and
the input thru.