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off.
LINE OUT
The Line Out jack is located POST EQ and PRE Master Volume in the block diagram. This function will allow 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.
HEADPHONE JACK
The headphone feature allows the user to monitor their sound via the use of stereo headphones. "Silent" practicing can be
achieved by removing the speaker cable from the back of the Baby Blue electronics. Do not remove the cable from the
cabinet jack only as there is a chance the cable could hit a "ground" and momentarily short out the power amp. NO HARM
will be done to your amplifier by not having any
speakers plugged in.
WARNING: Stereo headphones must be used in this jack as mono headphones will short out one side.
Since the headphone "amp" is actually a reduced signal from the power amp, the Headphone volume is controlled by the
Master Volume.
SPEAKER JACK
The Speaker jack should be used to connect the amplifier to a set of speakers. Make sure that the impedance of the
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