The Effects Blend control "blends" the signal coming from your instrument with the sound coming from your effect. With
the Blend control full counter- clockwise, no signal from your effect will be heard. As you turn this control clockwise, more
of the effect can be heard in the overall sound. When the Blend control is full clockwise, no true or unaffected signal is
heard other than what your effects unit provides.
This type of control and arrangement is very effective in reducing noise caused by effects units and in maintaining a more
natural sound. Please read the "Effects Loop" section for more information.
EFFECTS BYPASS SWITCH
Pulling out the Effects Blend control will bypass the signal coming from the effects unit and will return you to the sound of
your instrument only. This feature will function regardless of the position of the Effects Blend control. Always check the
position of this control if you are having trouble with your effects unit.
MASTER VOLUME
The Master Volume adjusts the signal level going to the power amplifier and HEADPHONES when they are used. It DOES
NOT control the output of the effects send jack, line out jack or line position of the XLR balanced output. If the power amp
clip LED lights more than occasionally, turn down the Master Volume to correct this condition.
POWER AMP CLIP LED
The Power Amp Clip LED will light when the internal power amp reaches clipping (runs out of headroom). Although no
harm will come to the electronics due to the power amp clipping, continual clipping of the power amp will shorten the life of
the internal (or any) speakers and could cause them to fail. SPEAKERS THAT HAVE FAILED DUE TO CONTINUOUS
CLIPPING OF THE POWER AMP WILL NOT BE COVERED UNDER WARRANTY! Occasional clipping of the power amp (no more
than every fourth or fifth note) will not harm the internal speakers. Turning down the Master Volume will correct this
situation.
POWER SWITCH
Pressing the Power Switch to the ON position activates the Baby Blue's electronics as indicated by the red LED lighting.
BACK PANEL FEATURES
BALANCED XLR OUT
The Balanced XLR Out is a true balanced output whose level is set by the XLR Pad directly to the left. The signal appearing
at the XLR jack is governed by the position of the Line/Direct switch directly below the jack. In the LINE position, all front
panel controls are functional and the signal is essentially the same that is being sent to the internal power amplifier. If you
are using an effect, this will also
appear mixed in the signal when you are in the LINE mode. In the DIRECT position, the Balanced out becomes an active
TUBE direct box. No front panel controls are functional and once again, the level is adjusted by the XLR Pad.
When using the Balanced Out for recording, optimum results can be achieved by DRIVING THE TAPE DECK DIRECT. Of
course, if this is not possible, the Baby Blue will work in any other situation. Whenever possible, use the XLR Pad to adjust
working levels. The use of input pads on consoles can deteriorate sound quality.
A ground lift is built into the XLR Pad control. To lift (remove) the ground connection, pull the knob outward until it clicks.
If a persistent hum exists after trying both positions of the ground lift function, there is probably a problem with the AC
wiring or just a dirty AC line. If this is the case, we suggest using an isolation transformer between the Baby Blue and the
wall socket.
Wiring for the XLR connector is as follows: Pin 1 = ground, Pin 2 = +, Pin 3 = - (American Standard)
XLR PAD
The XLR Pad adjusts the level (volume) appearing at the XLR connector. Volume increases as the control is turned
clockwise. The XLR Pad has a built in ground lift for the balanced out. Pulling the knob outward disconnects the ground (pin
1).
If you are in the LINE position and change the Gain control on the front panel, the level will also change at the balanced
output. You may readjust the record level if necessary with the XLR Pad without affecting any other function.
NO PHANTOM POWER (48V SUPPLY) SHOULD BE APPLIED TO THIS OUTPUT. DOING SO MAY DAMAGE THE INTERNAL
CIRCUITRY.
LINE/DIRECT SWITCH
In the Line position, the signal going to the power amp also appears at the Balanced out jack and all front panel controls
are functional. In the Direct position, a direct signal from the input jacks appears at the XLR connector. For further
information, see "Balanced XLR Out" above. When using this switch, make sure it is all the way to the left or right and not
in a "half way" position.
NOTE: Turn off transients appear at the record outs when the amplifier is turned off. It is recommended that equipment
that is being used in conjunction with the record outs be turned down, off, or disconnected BEFORE the Baby Blue is turned
