(28)MIDI IN / FOOTSWITCH
This 8-pin DIN is receives MIDI commands from an external controller. It will accept both standard 5-pin DIN cables as well as Peavey’s 8-pin MIDI/Communication combo cable. The 8-pin cable provides connection and power to the footswitch (supplied). Refer to the FOOTSWITCH / MIDI section of this manual for more information.
(29)EXTERNAL SPEAKER JACK
This 1/4" mono (TS) jack allows the connection of an external speaker cabinet(s). The jack is wired in parallel with the internal speakers. Minimum external enclosure impedance is 4 Ohms.
(30)POWER AMP IN
This 1/4" jack allows the connection of line level signals directly to the power amp.
(31)PREAMP OUT
This 1/4" jack allows patching to mixing consoles, tape recorders, etc. Use a shielded cable to patch from this jack to the input of the device receiving the signal. This patch does not affect the operation of the amplifier or the signal continuing to the power amp and speakers.
NOTE: The PREAMP OUT / POWER AMP IN jacks can also be used to patch line level effects units.
(32)XLR LEVEL
This control sets the signal level being sent out the XLR OUTPUT (33). Clockwise rotation increases the level of the signal being sent; counterclockwise rotation decreases the level.
(33)XLR OUTPUT
This low-noise, electronically balanced XLR (3-pin) connector allows low-impedance patches to be made from the amplifier. Connector wiring is: Pin 1 = Ground; Pin 2 = Positive; Pin 3 = Negative.
(34)PRE / POST EQ
This switch determines whether the signal being sent from the XLR OUTPUT (33) is pre or post-EQ, meaning whether or not that signal is affected by the EQ section of the amp. The OUT position is pre-EQ (not affected), while the IN position is post-EQ (affected), including all modeling, compression and effects.
(35)GND / GND LIFT
This switch lifts the ground from Pin 1 of the XLR connector to prevent a possible ground loop if the amplifier is connected to another piece of equipment, a mixing board for example, that is on another electrical circuit.
TUNER
The BAM’s tuner accommodates 4, 5, or 6-string basses in standard tuning formats as well as functioning chromatically. The Tuner can be accessed by pressing the USER (5) and STORE (6) buttons simultaneously, or via the footswitch. (See Tuner Mode in the FOOTSWITCH section of this manual.) The default mode for the tuner is standard bass tuning (B E A D G C), and the Tuner will be in this mode when selected. To enter the chromatic mode, press the COMPRESSOR (7) button while in Tuner Mode. The LED adjacent to the COMPRESSOR will illuminate when the tuner is in the chromatic mode. The LED displays for controls 14 –16function as strobe-style indicators relative to the note they are tracking. (See the diagram below.) Counterclockwise rotation indicates that the note being tracked is flat; clockwise rotation indicates the note is sharp. The speed of rotation will