Installation Guide & Owner‘s ManualVicente Flamenco Doble Guitar System

© 2014 Carlos Juan * www.carlosjuan.eu * e-mail: info@carlosjuan.eu

INSTALLATION MANUAL ATTENTION - the limited (5 years) WARRANTY does not cover:- Misuse, unauthorized modifications & external causes such as wrong voltage or wrong polarity (no 48V phantom allowed). - Short or damage of Coaxial Transducer joint or shortage due to unexperienced installation or shortening of transducer without top and/or joint isolation, pushing it through too tight channel (in the bridge towards slot ) and effects due to wrong 2mm channel (towards saddle slot on E6 + E1): angle must be 45 degrees on both sides, never 90 degrees! - We recommend that this system is installed by a professional luthier / installer. - We will not provide installation advices or support for home or hobbyist installations.- We will not be responsible for any damage to the guitar or personal injury resulting from installation, improper installation, use or misuse of the product.

PACKAGE CONTENTS

• Endpin-mounted 2 ch. active preamp• Coaxial round (1.8mm) transducer that mounts under the saddle• New CS (carbon housing ) sensor that sticks / double-tapes inside on top for golpe (preferably behind bridge on E1 side)• Both transducer and sensor are presoldered on mini plugs (plug & play installation)• Two soundhole-mounted rotary controls for two independent signals• Battery clip, 2 screws, double tape, two cable clips • Installation Manual

DOUBLE VIP PREAMP

• Endpin-mounted 2 ch. active preamp• MID + GAIN pots for personal tone adjustement• turning pots clockwise increases the effect (+dB) • MID (transducer) ca 80% open, if under 50% guitar will sound more tiny and will have less „body“ • GAIN (transducer) ca 80-90% open, depends on players right hand strength, this is the „input“ gain, if system distorts due to heavy playing lower down to ap propriate gain that is clean (gipsy players hit heavy)• MID (sensor) ca 20-30% open for Flamenco guitar, if open too wide golpe will be too „bassy“ • GAIN (sensor) ca 20-30% open for guitar top (golpe), if open too wide it may be louder then transducer

______________________________________________________________It is not difficult to install a system, but it takes the right tools and materials,

and you have to know what you’re doing.______________________________________________________________

1. Endpin Installation 2. Saddle, Slot, Routing 3. Bridge Modification / additional strings holes 4. Sensor Placement 5. Battery Placement 6. Gain Pots Placement 7. Endpin Preamp Adjustement 8. Connections to Audio Equipment 9. Troubleshooting10. FAQs

MANUAL TABLE OF CONTENTS (suggested Step-by-Step procedure)

Adjust inside nut (1) that larger threads stop just below the outer surface of guitar. outside. Tighten the smal-ler outside nut that smaller threads should be flush or slightly out (2) with strap-button (3) - ATTENTION: otherwise you may not get signal on TIP !! Finally tighten the strap button.

STEP 1Drill a Ø 12mm endpin-hole (diff. bit styles, e.g. staggered or go with reamer up to 12mm)

wood endblock

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Ø 12mm

A stick as this is very helpful for adjusting the threads positions & later the preamp pots w. guitar stringed.

1 3 2

wood endblock

Preamp

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STEP 2 Saddle - Slot - Routing

GENERAL RULES (with the transducer under the saddle):- saddle must sit at least 50-50 % inside/outside- even better 60% inside and 40% outside or more- make a marking on saddle with guitar stringed before proceeding- count 1.7 - 1.8 mm for transducer height- if slot is not deep enough, route it deeper as necessary on the full width

FIRST drill two channels for transducer on E6 and E1 sides- (coax) transducer channels MUST be 45 degrees, never 90 !- if channel is 90 degrees the coax will produce unwanted energy (feedback) - drill the channels as much as possible near the slot corners- coax must enter the channel FREE of any pushing (damage makes a short on top !)- router bit should be 1.8mm (squared or round head) on the LEFT side of the slot

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STEP 3Bridge Modification / additional strings holes

WE RECOMMEND- six additional strings holes on tie block (bridge)- creates a more optimal break angle (pressure) of the string over the saddle for OPTIMAL pickup performance- it is easier to change the strings without scratching the top plus no risk of the string slipping out if done right- strings will hold longer and guitar will get more sustain, acoustic strings balance (gain) is hearable better- long drill + steel bar are self-made, bit is 1.6mm, steel bar is hold by its nail in original hole to avoid slipping

VARIOUS COAX (SLOT) PLACEMENT SITUATIONS

ALWAYS FOLLOW THIS RULE : saddle is sitting snug-fit inside the slot 50-50% or more „in“ then „out“- 2mm slot needs no routing channel, 0.2 mm on coax sides won‘t produce any feedback (due to empty space)- 2mm to 3mm slot needs ROUTING of 1.8mm channel (square-shaped or round-head bit) ON THE LEFT SIDE !! means on the side of the neck, this is where diagonally the (strings) pressure over the saddle happens.- 3mm slot situation can be solved by super-gluing a 1x1mm material (wood or plastic bar) on the right side. This way you‘ve „filled-up“ the empty space next to coax transducer, which would produce feedback and damage strings balance, coax should never lay free in a slot wider then 2mm, it will not get the right pressure.

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STEP 4Sensor Placement

STEP 5Battery Placement

- find the place of your choice outside on guitar outside- check various spots with sensor plugged into preamp - no need to use doble tape attached, rather ask your tech to hold it and move- once you‘re sure you‘ve found a „sweet spot“ glue the sensor inside o same place- hold the sensor for 40-60 seconds w. hand or holder as shown and doubletape it- special acrylic transparent double-tape is supplied with each system- if any when in future you‘d love to remove the sensor use hot knife to split the tape from wood, this tape holds over 50kg and holds perfectly (golpe hitting....)- adjust the sensor MID + GAIN pots on preamp now or later (see stick above) by push-pulling the preamp through soundhole with stringed guitar plugged in- if you don‘t want to install coax transducer under saddle you can as well perform „only“ with sensor attached outside or inside the guitar, this is still better then any other sensor existing on the market, preamp is double and can be used for 2 sensors

CLIP supplied

BATTERY BAG

BATTERY TESTERthrough endpin

System is delivered with a CLIP (picture 1) that screws on neck heel (screws included).2. custom battery holder 3. custom battery compartment for easy access from outside4. battery bag with velcro 5. custom solution 6. battery tester that plugs into endpin for easy testing

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STEP 6Gain Pots Placement

We recommend hot glue for double-pots PCB to be glued near soundhole inside

STEP 7 Endpin Preamp Adjustement (with stringed guitar)

We recommend using a (selfmade) long stick that acts as guitar cable plug (head) and PUSH the preamp until soundhole, pull it out through soundhole, plug the Y-cable (not included) and adjust each signal separately. Before you adjust the mini pots (signal input) on preamp, be sure that gain pots (signal output) on soundghole enge are fully open. Adjust bot input levels o preamp so that transducer and sensor get same output levels. Probably you‘ll end up with 80-90% transducer and 20-30% sensor open (clockwise from zero). Middle pots (gain) preferably 60-80% on Transducer and 20-30% on sensor (otherwise sensor/golpe will be too „bassy“).

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STEP 8 Connections to Audio Equipment

Y - CABLE (not included) PICKUP

SENSOR

Y-cable plugs into Endpin jack (preamp) for two separate (mono) signals.

- TIP (on Y-cable) = PICKUP- RING (on Y-cable) = SENSOR - If using a MONO cable only the PICKUP will be activated (working). - BATTERY is turned ON only when a cable is plugged into the endpin jack- Test the battery before concert, if under 7.5V system will work, but its time for change.- First soundhole-pot on „neck side“ controls the PICKUP (output) gain- use quality double DI-box to preserve the superior quality of the System (e.g. Radial Eng).

NOTE: If you wish SENSOR to work on mono cable - just plug it into the PICKUP input on preamp and plug the transducer on SENSOR input for y-cable performance of both.