Palmer ABO

ABO by Palmer: a simple, robust tool designed for the stage

The PEABO (listed in the ABO range) is one of those essential "utility" devices that save a live setup: no menus, no programming, just clear and reliable switching. Its fully passive design prioritizes simplicity and operational safety: you route a balanced signal exactly where you need it, without relying on power to pass the audio.

Who is the Palmer PEABO for?

The PEABO is aimed at singers and bands who want to maintain control over their microphone signal on stage, as well as technicians, stage managers, and studios needing immediate and repeatable routing. In live settings, it excels at switching from a "normal" circuit to a "talkback" circuit (communication) or selecting between two different zones/rooms. In the studio, it allows quick comparison of two processing chains or two inputs (preamps/tracks) with one press, while maintaining a clean balanced signal flow.

Footswitch switching, pads, and Ground Lift : ergonomics designed for pro audio

Switching is done via a robust footswitch, and a red LED clearly indicates which output is active. To adapt to gain differences between two console channels (or to avoid an overly sensitive input), the PEABO includes attenuators : a dedicated pad position on output A, and several selectable values on output B. Add to this a Ground Lift to reduce hum caused by ground loops, and you get a very practical unit to integrate into a rack, on a stage setup, or directly on a pedalboard thanks to its mounting holes.

Sound Character

The PEABO is not an effect that "colors" the sound: it is designed to remain transparent and preserve the character of the microphone and upstream chain. Its sonic value lies more in control : the ability to instantly switch from one channel to another (for example, a "natural" vocal versus a vocal with a "telephone" style EQ or a long reverb), and to adjust the level with the pads to keep a clean, unclipped, and consistent signal across configurations.

Technical specifications

Effects	Remote Control, Switch	Type	sector
Technology	Analog	Use	electric guitar
Format	Pedal	Color	Grey

Function	output switcher (selection of one output among two)	Switch	Ground Lift
Number of channels	2	Output A	15 dB attenuation
Design	passive (battery powers only the LED)	Output B	6 dB, 15 dB, or 21 dB attenuation
Number of inputs	1	Material	steel (sheet metal), powder-coated finish
Input connector	XLR	Width	100 mm
Number of outputs	2	Depth	120 mm
Output connectors	XLR	Height	60 mm
Transformer-isolated outputs	no	Weight	0.64 kg
Switching	footswitch selector	Mounting	pre-drilled holes for rack or pedalboard mounting
Control	Output pad (attenuation)	Required voltage	9 V battery (block type) to power the LED
Indicator	red LED (channel number/state)	Max current	n.a.