Instructions for exchange of the bass slides in a APOGEE CALIPER

Instructions for exchange of the bass slides in a APOGEE
CALIPER, DUETTA
Caveat:
The exchange of a bass slide is not for the inexperienced handyman. Some
skills, technical understanding and experience in working with tools is
Prerequisite for the success of the exchange.
We take no responsibility for damaged or crumpled foil and poor
sound results after installation.
With careful work, and sufficient technical expertise is the result of
compared to the original.
What do you need?
Tool:
Hammer
a good bit set with Zollbits
soldering iron
Elektrotacker
Superglue
double-sided
Screwdriver
tape
scrapers
Silicone
Velcro
strips
5 pcs 5mm spacers (wood)
Punch
8
mm
a 2-meter table
Cutting knife
Measurement: Multimeter
Microphone
Audio
software
for
frequency
measurement
Preparation
Make sure you order the correct film. We supply the left and right
separately.
In addition, the films for the signature/reference models are not the same as the
standard models.
Check the contents of the delivery.
Included:
1
Bass
1
set
1
tube
1 Manual-CD
Panel
of
damping
Aluminiumlot
strips
To change
Screw the feet of
Speakers and put it on the
Back.
Make sure that the
Connecting sockets with damaged
will.
Loosen with a 1 / 8 inch bit, the
two screws on the bottom of the
cover.
Take off the lid. This
the Velcro fasteners on the inside
solved. It may be that there is something
is difficult.
Only courage to raise, you can
Velcro dots at the end again
.Detach
Now turn to the loudspeaker
and note the color of the
tweeter ribbon cable.
Loosen now with a 1 / 8 inch bit, the
lead of the tweeter.
Now you can again with a 1/8
custom bit of the four screws
tweeter ribbon remove.
Place it afterwards to a safe
location and make sure that no
magnetic objects in its
come close.
Now you remove with a 3mm
bit first the lower and
upper crossbar. These are not
bonded but only loosely screwed on.
Next remove all
bolts from the lateral
bars.
The lateral ridges are
bonded. To remove the bonding
the solution is to use a
correspondingly large
screwdriver and
drive it with cautious
hammer blows between
both braces. Make
sure that you do not
split the wood.
Try on both sides
to loosen the adhesive.
Now you can carefully
lift the sidebar with the foil.
Do the same with the
another sidebar.
Now remove the old
panel and scrape with a
putty knife the rest of the
silicone and film remains from
the wooden frame.
Use the scraper to remove
even the old foam residue
which remains on the
wooden frames.
The upper parts of the framework
must be thoroughly cleaned.
Next, loosen the
wiring of the
crossover and remove
the remaining aluminum and
tape strips.
Now relax the side-mounted
screws until you effortlessly to
5 mm wide spacers between the
frame and clamping bar can be
used. Insert next to each
clamping screw a spacer.
Now glue all around the supplied
foam rubber strips into the
recesses provided for and press
everything carefully with the role.
Now select it middle of the first
and last with the help of a
magnetic strip Eddings on the
wood frame. This is important to
be able to the tracks of the films
precisely position. Often, these
markings are however already
available.
Now carefully place the bass
slide in the frame and align the
foil on both marks at the top and
bottom. Make sure that while the
film is not creased.
Now align the sheets along the
rubber washers and making sure
that the film is about anywhere
Now you can apply the silicone
to glue the sheets. Make sure
you do not take too much.
A 5 mm "sausage" is enough.
Then put the film on the silicone
and press the foil firmly careful.
Please note that you can not pull
the film. Otherwise, the waves
in the film will change.
Next, place the top bar on the
film and lead all clamping screws
iinto the holes provided in. Then
you put enough weight on the
sidebar, and let the silicone cure.
Alternatively, you can also use
clamps. Make sure that the
running tracks of the film exactly
parallel to the magnet and the
upper and lower marker does
not move when pressing the
silicone.
Now let the silicone cure for a
day and repeat the next day the
whole thing with the other side.
You now have the opportunity
possibly resulting wrinkles by
pulling on the protruding foil to
eliminate. You do not need to
stretch taut the sheets, then
this is done, the clamping screws.
You can also use these sites to
cure one day.
When both sides are cured,
you can first attach the
upper part of the clamping
section. They also use some
silicone and screw it
afterwards with square
screws.
Now look on the opposite
side of the holes for
mounting the top bar and
beat with the help of the
hollow punch at this very
spot a hole in the foil.
This is to prevent the cause
during the subsequent
screwing the bolts a short
circuit between the
conductors.
Then you can find the two
holes in the top and bottom
bar and also propose two
holes through the foil. This
ensures that you can stretch
the film at the end without
tearing it.
Now you use the double-sided
tape and fix the connection
pads up and down on the
wooden support. Then screw
the side panel with silicone
back on the slide. The upper
and lower cappings are not
glued but screwed. Please
screw this first only "hard
hand" to. After completion
of the resonance frequency
setting, unscrew the screws
tightly.
Now cut with the cutter, a
hole in the foil where the
captive nut is and apply a
small amount of the included
Speziallots on from the tube.
Then they let the solder
melt with a soldering iron
and thus establish a secure
connection.
Now screw firmly against
the cable crossover. Make
sure that it does not tear
the foil.
Now fix with a staple gun,
a cable with sufficient cross
section on the connection
pad and solder it similar to
previous ones.
Connect the black cable
from the terminal with a
suitable cable sufficient
cross section and guide
both cables to the upper
terminal pad To fix use
superglue or other mounting
option of your choice.
Connect to see both cable
to the top connector box in
the picture.
Look for the correct wiring of the
tracks. Measure connect the ohmic
resistance of the conductors.
Between mass at the connection
panel and the screw on the input
sheet should be measured
according to the model from
about 3.8 ohms.
Now you can remove one by one
the spacer. Here you can see how
stretched the film.
Now you can adjust the resonant
frequencies of the film. You will
need an amplifier, a measurement
microphone and a suitable audio
measurement software such as
ARTA, True RTA or DSSF3
To adjust the resonance
frequencies the speaker into
position first so that it can swing
freely backwards or put him up
with the help of a second person.
Then you start at the top of
loudspeaker and stretch the film
with the help of lateral locking
screws so that a resonance
frequency around 47 Hz setting.
In the central part of the speaker
repeat the whole and make there
a resonance frequency around
44 Hz.
In the lower area to achieve
about 38 Hz or less. Mind you
do not like it too tight to tension
the films. It is possible that with
taut tension to the film tears..
After you have set all three areas
check again with a larger distance
to the microphone frequency
response of 25 to 150 Hz while
you should see three more or less
pronounced peaks. Maybe there
are still some postcorrections the
individual frequency ranges
necessary.
Now you can mount the tweeter
again. Pay attention to the correct
polarity of the connection cable
Thus, the main work is done. Now you still check the overall function of the speaker to make the all
screws are returned to your desk all the wires are tight and nothing rattles. All projecting film remains
carefully cut with a sharp utility knife.
Then you can refer the speakers with either the old or grille cloth with a beautiful, new.
In the cover of the speaker, there are four or six Velcro pads. This Velcro pads hold the cover to the
speaker. Fix using the tacker the opposite of the Velcro pads at the same point on the speaker.
Thus, at the conclusion not on the cover.
The placement of the cover in the reverse order as the removal.
We wish you much success when changing
the films!!!