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UST and Model sizes

Saddle width: 2.3 – 2.9 mm (.090” - .115” (3/32”))
B-Band model #: 22R
UST width: 2.3 mm (.090” (3/32”))
Saddle width: 3.0 mm (.118” (1/8”)) or more
B-Band model #: 29R
UST width: 3.0 mm (.118” (1/8”))

3. OVERVIEW OF A6T 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  A6T  preamp  has  the  XOm  mix  control  that  controls  the 
blend of the UST and UST / AST XOm mix.

XOM® (Cross Over Mix)

In our continuing search for realistic acoustic tone the B-Band 
research and development team has applied a crossover sys-
tem  to  our  exclusive  patented  pickup  material.  The  crossover 
mix (XOm) system combines the best aspects of each pickup 
into one complete source.

By sensing the guitar from two separate locations and combin-
ing, what each pickup does best, the XOm system has a very 
complex and rich sound that further augments already superior 
sounding Emfit film pickups.

The  ideal  process  for  authentic  acoustic  reproduction  comes 
from combining the high frequencies of the AST and low fre-
quencies of the UST, making a sound that is much more com-
plete, true and pure. In addition, the XOm pan pot allows the 
player to select between UST / AST XOm mix crossed over at 
800 Hz or the full range UST, or one of the many points in-be-
tween resulting in almost unlimited possibilities.

At the UST side of the mix control only the UST is heard. At the AST 
side of the mix control, a crossover mix of the UST low frequencies 
and AST high frequencies is heard.

To learn more about the XOm feature, check the XOm User Guide 
later in these instructions.

The A6T has a dedicated input gain control located at the back-
side of the preamp. The control is accessed through a small hole 
with a screwdriver. This control is used to set the basic balance 
of the UST and AST so the pickups can have equal output signal 
strength.

 

The A6T has the HzzLess® circuit for outstanding low noise and 
high output.

The A6T is a side mount preamp with a 3-band “graphic” equalizer, 
XOm  mix  control,  chromatic  tuner,  Notch  Frequency  and  Depth 
controls, phase button and low battery LED light. This dual XOm 
input preamp will accept UST and AST.

The A6T uses a standard 6.3 mm (1/4”) plug to turn on the 9-volt 
power.

 
 

4. PACKAGE CONTENTS

 

Note!  In  the  USA,  transducers  and  preamps  are  packaged  to-
gether.

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 A6T package contents:

• 1 pc A6T preamp circuitry board
• 1 pc A6T preamp box
• 1 pc A6T preamp box back

Содержание A6T

Страница 1: ...ANSDUCER This is a basic installation manual and tip sheet For more information technical support and pictures of installations about all B Band products please check the B Band website at www b band com or contact your B Band dealer distributor or B Band directly 1 2008 09 01 ...

Страница 2: ...ive to B Band This material is very dif ferent from and has nothing to do with piezo electric films or transducers How is it different We could write a long story here about the technical characteristics of the material like how the micro scopic lens like gas bubbles work inside the permanently charged film but the most important difference is the sound Whereas piezo pickups tend to impart a sound...

Страница 3: ...y could get loose when transported We strongly recommend removing the battery before transporting the instrument in heavy conditions for example with freight companies or airlines to avoid possible damage to the instru ment When doing any drilling sawing cutting or routing at the guitar be sure to secure the guitar so it will not move when doing such work 2 OVERVIEW OF B BAND UST AND AST TRANSDUCE...

Страница 4: ...e com plete true and pure In addition the XOM pan pot allows the player to select between UST AST XOM mix crossed over at 800 Hz or the full range UST or one of the many points in be tween resulting in almost unlimited possibilities At the UST side of the mix control only the UST is heard At the AST side of the mix control a crossover mix of the UST low frequencies and AST high frequencies is hear...

Страница 5: ...er Wood or metal drill bit 3 mm 12 A rotary wood router with sharp 3 mm 12 cutting bit Screwdriver Posidriv 1 Endpin reamer 12 mm 47 or wood drill bit 12 mm 47 Allen wrench 2 mm 08 Punch spike 13 mm 51 wrench to tighten the nuts on the preamp endpin jack Small hand held mirror Flashlight penlight Small round file Masking tape 1470 AST cardboard installation mounting guide supplied 6 PREPARING THE ...

Страница 6: ...race Please read the instructions carefully and adapt them to the installation To test fit the 1470 AST in a guitar with a bridge plate take the cardboard installation template from the tray in the box Note There is a small 4 5 mm 18 round and a 4 5 mm 18 elongated part that both need to be punched out to make their respected guide holes The 4 5 mm round guide hole is for the low E bridge pin and ...

Страница 7: ...ides may not be stable after cutting a hole to fit the A6T It may be necessary to reinforce this area from the inside of the guitar with an extra piece of plywood before cutting or drilling holes The thickness of the guitar side should be at least 2 mm 08 and preferably 2 5 3 mm 10 12 If needed glue in a piece of plywood of suitable thickness to reinforce that area Cover the planned installation a...

Страница 8: ...actory at approximately 50 50 blend of the pickups Regarding AST please note to lift one corner of the protective layer of the mounting adhesive so it is easier to remove later Take the preamp assembly inside the guitar and install it to its place Let the transducer s and wire harnesses hang loose in side the guitar at this moment Install the front plate and attach the screws It is important that ...

Страница 9: ...T Lift the assembly up and guide the assembly so the bridge pins insert the guide holes and carefully place it to the bridge plate Then stick it firmly by holding and pressing firmly with fingers for a short while Next carefully remove the cardboard installa tion template Make sure the AST fits there tight and secure For AST remove the adhesive protective layer from the AST Then stick it firmly by...

Страница 10: ...f the symptoms go away the output jack needs to be removed and the nuts adjusted so the jack sticks out further 11 2 Loud hum Check to see that the connectors of the UST AST are inserted with the two holes up If these connectors are upside down the system will work but it will buzz Check that the connectors are inserted correctly onto their pin headers at the preamp 11 3 Resonance or distortion wi...

Страница 11: ...ING SANDPAPER OR FILE SHAPE BOTTOM EDGES AT LENGTH OF THE SADDLE TO LOOK LIKE THIS NO MORE THAN 0 5 mm SHOULD BE TAKEN AWAY 11 7 Other notable causes for balance problems Check string angles behind the saddle They should be about the same behind every string If the angle is too low the string will not put enough pressure on the transducer and that may cause balance problems usually higher output f...

Страница 12: ... L 86mm 3 38 W 57mm 2 24 H 31mm 1 22 14 EU Declaration of Conformity This B Band product has been designed manufactured and tested to comply with the requirements of EMC directive 89 336 EEC and CE mark directive 93 68 EEC and carry the CE marking accordingly LED s in this product are Class 1 in accordance to EN 60825 1 Statement of EU Declaration of Conformity is available from manufacturer upon ...

Страница 13: ...d AST Acoustic Soundboard Transducer pickup The UST pickup is under the saddle of the guitar This pickup gives full range tones and is the fundamental sound that is al ways present in the sound mix The AST pickup is attached to the bridge plate or the sound board of the guitar This pickup adds some extra sonic tone and adds that tone to the mix XOM is an acronym for Cross Over Mix This function is...

Страница 14: ...tput louder than the AST 6 N DEP NOTCH DEPTH ROTARY CONTROL 7 N FREQ NOTCH FREQUENCY ROTARY CONTROL The two rotary controls are for feedback control Feedback is the undesirable sound that sometimes occurs at medium to loud volume levels and sometimes when standing close to the speaker that is reproducing the guitar sound The N DEP notch depth and N FRE notch frequency can help control feedback The...

Страница 15: ... half step LED will light If the Sharp LED is showing the string needs to be lowered in pitch If the Flat LED is showing the string needs to be raised in pitch When the In Tune LED lights the string is at the correct pitch of the note displayed at the Note Display LED SETTING UP THE PREAMP FOR USE Tune the guitar See the tuner instructions at 10 and 11 Before plugging a cable into the guitar s out...

Страница 16: ... products of a type condition and standard other than prescribed by B Band iv repair or attempted repair by persons who are not B Band employees v adjustments or adaptations without B Band s prior written consent including upgrading the product beyond specifications or features described in the instruction manual or modifications to the product to conform it to national or local technical or safet...

Страница 17: ...ATING EE OR OTHER GIBLE LOSSES SS OF PROFITS THE PRODUCT DIRECT INCI DAMAGE THIS AGE RELATES THE PRODUCT DEFECTS OR HICH CAUSED SINESS INTER M THE PROD UNDER ANY E AND OTHER S OR IMPLIED EN WHERE B OSSIBILITY OF ese liability ex ility only to the w For example itation of dam gligence willful s liability under ice paid for the higher liability nder applicable r products This u may have nor ited nor...

Страница 18: ...H Ofener Str 19 80689 München Germany Tel 089 990 176 41 Fax 089 990 176 42 Email hans herrmann b band com Internet www b band com B Band B Band logo A6T UST AST XOM HzzLess and microscopic lens like gas bubbles are either registered trademarks or trade marks of B Band Ltd in the United States and or other countries Patented patents pending List of patents are available from B Band Ltd upon reques...

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