Installation manual

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3. OVERVIEW OF A2 PREAMP
All B-Band A-series preamps are designed to give optimum
performance with B-Band UST and AST transducers. The main
criterion in designing these preamps was to deliver studio qual-
ity and user-friendly electronics to the diverse needs of acoustic
instrument musicians.
The A2 is a two input / two output endpin preamp. Designed
as a platform for two sources, the best performance is with the
combination of UST and AST. The #1 channel input can support
UST or AST pickup.
The #2 channel input can support a UST or AST pickup, or can
also be configured for use with the B-Band AG-MIC condenser
microphone or a passive magnetic pickup with the mini dips-
witches inside the A2.
With the A2 you will need a two channel (stereo) Y-cable (TRS
plug to 2 mono plugs) in order access the two output chan-
nels.
The two outputs will allow control of the mix between the two
outputs at a mixer or amplifier. With a standard guitar cable the
output will be that of channel 1 only (normally the UST).
The A2 uses a custom endpin jack that allows either standard
1/4” mono or stereo plug to turn on the 9-volt power.
DO NOT PHANTOM POWER B-BAND A2 PREAMPS!
3.1 OPTIONAL AG-MIC CONDENSER MICROPHONE
FOR A2 PREAMP
The B-Band AG-MIC microphone option is an excellent choi-
ce and value for an additional condenser microphone. The mic
capsule is especially designed for acoustic instruments, with
suitable bass roll-off and treble boost. This is not a full range
microphone. The AG-MIC’s use is primarily to add some plea-
sant body tone to the mix with a UST or AST pickup The AG-MIC
should be used sparingly in a sound mix.
4. PACKAGE CONTENTS
Note! In the USA, transducers and preamps are packaged
together.
4.1 UST package contents:
• 1 pc UST pickup
4.2 AST package contents:
• 1 pc AST pickup
• 1 pc cardboard installation guide (only AST)
4.3 A2 package contents:
• 1 pc A2 preamp circuitry board
• 1 pc A2 preamp box
• 1 pc A2 preamp box back
• 2 pc screws for preamp box
• 1 pc A2 preamp with strap button assembly
• Strap button assembly includes:
- Small hex nut
- Small dress washer
- Lock washer
- Large dress washer
- Large hex nut
• 1 pc battery clip with adhesive
• 1 pc battery cable harness
• 2 pcs wire clamps
• 1 pc instructions and user guide
4.4 AG-MIC package contents:
• 1 pc AG-MIC condenser microphone
5. TOOLS AND MATERIALS NEEDED FOR INSTALLATION
• Drill, preferably with continuously variable speed
• Wood or metal drill bit, 2.3 mm (.09”) or 3 mm (.12”), depending
on the width of the transducer
1/4”
(STEREO)
(MONO) 1/4”
(MONO) 1/4”