Effects Loop; Effects Send - SWR Baby Baby Blue Operating Instructions Manual

EFFECTS LOOP

As mentioned previously in the "Effects Blend Control" section of the manual, the Effects Blend circuit in
your Baby Baby Blue is similar to that used on recording consoles, with the effects loop on a "side chain"
to the normal circuit. Unless the Effects Blend control is set to the full "wet" position, you will always get
the full sound of your instrument AND get the diversity an external effects unit offers. Use of the effects
loop will reduce the noise generated by external effects units (as compared to using the effect between
your instrument and the input jack, though many people use it in this fashion anyway). This is because the
loop is after the preamp gain stages.
The Effects Loop is compatible with most individual or multi-effect external effects devices. Many effects
devices on the market have input level adjustments. For instance, some units have a switch that you can
set for either -20 dB or +4 dB. In all cases, these should be set for 0 dB (if available) or +4 dB. The level
going to your effect is controlled by the Gain control on the front panel.
Note: The Effects Loop is used in conjunction with the Effects Blend control on the front panel. When
the Effects Blend Control is in the full counter-clockwise ("DRY") position, no effects will be heard.
This is normal.
CONNECTING AN EXTERNAL EFFECTS DEVICE TO THE EFFECTS LOOP
Obtain two high-quality shielded patch cables, preferably as short as possible. Route them in the most
direct way possible. (Running patch cables over the top of the Baby Baby Blue—as with any amplifier—can
induce hum in the cables and is not recommended.) Take one cable and connect it from the Effects Send
jack on the Baby Baby Blue to the input of your external effects device. Take the second cable and
connect it from the output of your external effects device to the Effects Return jack on your Baby Baby
Blue. To set levels, follow the instructions as previously listed in the "Effects Blend Control" heading
under "Front Panel Features."

EFFECTS SEND

This jack's primary function is to send a post-EQ signal to an external effects device for use in the Baby
Baby Blue's Effects Loop. However, it can also be used as:
1. A line level output for use in conjunction with an additional (slave) power amp or powered speaker
cabinet.
2. An unbalanced output suitable for recording or live mixing board purposes.
The output impedance of the Effects Send jack is 100 Ohms.
EFFECTS RECEIVE
This jack's primary function is to complete the Effects Loop circuit by routing the post-external-effects
device signal back into the power amp of the Baby Baby Blue, where it can be blended back in with the
original signal by using the Effects Blend control on the front panel. However, it can also be used as:
1. A power amp input jack. If, for some reason, you wished to bypass the entire front end and use the
Baby Baby Blue strictly as a powered speaker cabinet, you could take the output of whatever line-level
audio source you wished and connect it to this jack. Then, set the Effects Blend control to the full
clockwise ("WET") position. Use the Master control to set the overall level, and your Baby Baby Blue is
now a powered speaker cabinet.
2. An input for pre-recorded music, for playing along and practicing purposes. To accomplish this, insert
a CD player or other sound source into the Effects Receive jack. (It must be a MONO 1/4" plug that
goes into this input, so you'll have to use a stereo-to-mono cable adaptor of some kind.) You can adjust
the level of recorded music versus the "live" sound of your instrument by using both the Effects Blend
control (the more clockwise the control, the more pre-recorded music signal you'll hear) and the volume
control of your CD (or other) audio source. The mixed sound will be heard through your speakers.
Besides pre-recorded music, this is also an excellent way to practice along with a drum machine.
Input impedance of the Receive jack is 27k Ohms minimum.
BABY BABY BLUE • 17