AER AK15 plus Manuel d'installation - Page 9

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during installation, and use a strip of masking

tape to stick the piezo pickup cable inside the

guitar to a near top brace, as strain relief.

The saddle will sit higher now that the piezo is

installed. For proper playing action, remove some

material from the saddle. Use double side tape to

fixate sanding paper to a

completely flat surface and sand off enough

material from the bottom of the saddle to match

your playing requirement. Always check that the

bottom of the saddle stays flat!

4. Endpin Mounting

After drilling the 12 m hole in the guitars end

block, start from inside the guitar, slip the pre-

amps endpin through the endpin hole and prese-

lect the correct position with the hex counter nut

inside the guitar.

Then fix the endpin finally with the second

hex nut from the outside, pushing an allen key

through the hole in the thread for use as lock

against twisting. When the endpin is safely fixed,

screw on the strap-button.

Now plug the piezo pickup connector into the

piezo socket of the endpin, there should be an au-

dible „click", to make sure it sits firmly. The internal

microphone is best pointed towards the back

of the guitar. Experimentation may yield better

results with your specific instrument though.

5. Test Run

Before fixing the battery pouch, it is best to do a

test run. Connect the battery pins to the connec-

tor of the AK15 plus system.

Now connect the soundhole control unit with the

small connector.

You can then connect the output jack to an am-

plifier. Plugging the jack into the endpin socket

closes the circuit and switches on the AK15 plus

system, without jack there is no battery power

consumption. Even when not playing, the system

will lose battery power when a jack plug is con-

nected. Only plug in when you want to use the

pickup system.

The factory setting of the internal microphone

trim pot will be suitable for the vast majority of

guitars, so in most cases, there is no correction

necessary.

Factory settings:

Piezo: +10dB

Microphone: +10dB

Check the sound of the piezo pickup first and

listen if all strings sound equally loud. Imbalance

in string volumes should be addressed by a

luthier, or follow the tips in the trouble shooting

section. Now add microphone signal by turning

the Mic control. Tapping the top will let you hear

the microphone signal very easily. Sounds good?

Go to the next step.

5. Battery Pouch Installation

The battery pouch has a Velcro strip on the

backside.

Peel the masking tape off the Dual-lock™ (tape)

and glue it to the neck block or the upper bout of

the guitar. Make sure the gluing surface is flat and

clean. Many tone woods contain natural oils, and

the gluing surface needs to be made grease free

before gluing the Dual Lock™. Then attach firmly

the battery bag to the Dual-lock™. Connect the

battery contacts from the endpin preamp with a

fresh battery and put it in the pouch.

Please consider:

You have several options regarding the position

of the battery pouch, each of them may be a

compromise, but the aim must be to combine

easy access with a firm position of battery and

battery-pouch. The cross braces of the upper

bout inside the guitar may be used as additional

support against gravitational force.

Whatever position you choose: You will have to

loosen or even remove the strings, when a battery

change is necessary.

Note:

The AK15 plus system is not made for ‚micro-

phone-only' performance! You will find a surpris-

ingly warm yet strong and clear tone from the

piezo due to a suitable electronic environment.

The microphone will add definition, and authen-

ticity as well as an acoustic ambience, which

makes the sound more natural. Too much micro-

phone signal however will make the tone ‚hollow'

and can cause feedback. The piezo at full volume

may make microphone use impractical. All this

has been experienced without using a feedback