BABY BLUE II OWNER’S MANUAL • 7
you to drive an additional (slave) power amplifier or can be used as an unbalanced record out. Any effects
used in the effects loop will appear at the Line Out jack as well. The overall level is set by the GAIN control on
the front panel.
TO TUNER INPUT
The Tuner Input jack allows the user to plug their instrument tuner into this jack and "tune up" without having
to unplug and go back and forth from amp to tuner. This feature is totally isolated from the rest of the
preamp and will function regardless of the settings of the controls on the front panel. Being on a side chain
(isolated) also avoids loading down of the instrument causing a loss in the dynamic range of your instrument.
To use this feature, plug in a shielded patch cord from the Tuner Input to the INPUT on your tuner. Turn the
amplifier on and you're ready to go. If you do not wish to monitor your sound while tuning, you may turn the
Master Volume down. If you are in the studio and sending a feed to the "house," you may want to turn down
the XLR Pad so you won't disturb the drummer who has been trying to get his sound for the last 6 hours!
EFFECTS LOOP
The Effects Loop is located POST EQ and PRE Master Volume in the block diagram. The signal level appearing
at the Send jack is controlled by the Gain control on the front panel. If you are getting too hot a signal to the
input of your effect, reduce the level of the gain control and raise the level of your Master Volume to retain
similar overall volume levels. By using the Gain, Master Volume and Effects Blend control in conjunction with
each other, optimum results should be obtainable with any effects unit.
The Effects Loop is designed as a "side chain" (parallel) function similar to those found on studio consoles.
Use of the effects loop should greatly reduce the noise generated by effects devices (as compared to in-line
effects loops). Additional features of this type of loop can be found below under the Receive jack section.
SEND JACK
Run a shielded patch cord from the Send jack to the INPUT of your effects unit. This jack may be used as an
additional line level output.
RECEIVE JACK
Run a shielded patch cord from the RECEIVE jack to the OUTPUT of your effects unit.
One unique feature of the receive jack is the ability to practice along with pre-recorded music. Insert a tape
recorder or other sound source into the Receive jack (make sure it is a mono source). Using the Blend
control, adjust the level of recorded music from the Receive jack to the "live" sound of your instrument. The
mixed sound will be heard through the internal speakers and/or your headphones. This feature appears on our
Redhead and musicians receiving audition tapes, or practice tapes from bands they are soon to join have
found this to be invaluable.
Bass players generally complain that they are not loud enough in the studio mix. To solve this problem, run a
feed from the headphone mix or console mix to the Receive jack. Using the headphone jack on the Baby
Blue, adjust the Blend control to the desired level you want to be in the mix! This can only be done if the
Line/Direct switch is in the DIRECT position and your speakers are not being miked. If you are in this position,
you can also make your own private tape of the session by inserting a cassette deck in the Line out jack.
NOTE
: Inserting a plug into the Receive jack activates the Effects Blend control. The Effects Blend control
"receives" this command through the ground created by insertion of the plug in the jack. Therefore, best
results can only be obtained by using a mono phone plug. If you have a stereo plug only, tie the ring and
the ground together.
If you are not getting any "effect" through your speakers, etc., check the position of the Blend control and the
Effects Bypass switch located on the front panel.
