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Workspace Considerations

As with doing any type of kit assembly, it is best to have a large, clean work area with adequate lighting. Taking a
few minutes to establish a good work area will save time by eliminating lost parts and preventing assembly
errors. A heat-resistant work surface is recommended for the crossover assembly portion. When working with the
cabinets, it is important to cover the work surface with a cloth or foam layer to protect the speaker finish. The
foam wrap that is around the speaker cabinets will work well for this, making sure it is free from dust or other
debris.

Getting Organized

To prepare for the kit assembly, you need to do some basic unpacking and organizing first. Open the large
speaker cabinet box(es) and remove the speakers from the packaging. You will need to unwrap the cabinets
themselves, saving the wrap to protect your work surface. Remove the baffles from the cabinet, and place the
baffle screws someplace safe. Proceed to unpack binding posts and other packaged items.

Assembly

1. Install Port Tubes

The port tubes that are included with your kit need to be installed into the cabinet. In this particular kit, the
required port dimensions are 1-3/8" in diameter by 4-1/2" in length. This allows us to use only the main section of
the 1-3/8" adjustable port tube, which is the portion with the mounting flange on it. The secondary adjustable
portion of the tube may be discarded. The main section can be mounted into the cabinet per the instructions
below.

Screw-mount port tubes- The port can simply be set into place and carefully secured with the included #6-3/4"
screws. Be careful not to over-torque the screws, which may result in cracking of the plastic.

2. Install Binding Posts

The posts will need to be “knocked” into place with a hammer and secured from the inside of the cabinet. Start
by placing the cabinets face-down onto the work surface, being sure that the cabinet is firmly supported.

Remove the binding posts from their package, and unscrew all washers and nuts from the shaft. Next, remove
the main nut that is used to hold the speaker wire onto the terminals- this will prevent them from getting dam-
aged while the posts are being inserted.

Insert one of the post shafts into the hole and align it
making sure the wire through-hole is running vertically.
Gently tap into place until the shoulder is snug with the
rear of the cabinet. Excessive hammering is not
necessary and may cause damage to the finish of the
cabinet around posts. Proceed through the same
process with the second post.

Once the posts have been knocked into place, you will
need to secure them from the inside of the cabinet. A
lock washer followed by a nut need to be installed to
secure the posts to the cabinet. Next, install the
second lock nut, the solder tab, the second nut, and
then tighten into place.

Now that the posts are fully secured, we just need to
reinstall the colored knobs on the outside of the
cabinet. When looking from the rear of the cabinet
(terminals should be closer to the “bottom” of the
cabinet), the “red” terminal will go on the right side.

Summary of Contents for 302-910

Page 1: ...Loudspeaker Kit Assembly Instructions Vifa PL Bookself Speaker Kit 302 910 302 912 302 914 Manual 999 241 January 2004 Parts Express ...

Page 2: ...2 x 24 x 18 Acoustic foam 081 435 20 6 x 3 4 Phillips pan head screws 264 527 2 Vifa PL27TG35 06 Tweeter 297 322 2 Vifa PL14WJ09 08 Midbass 255 242 2 Jantzen 80 mH 18 ga inductor L1 255 266 2 Jantzen 2 00 mH 18 ga inductor L2 027 420 2 Dayton 3 3 uF capacitor C1 027 423 2 Dayton 5 1 uF capacitor C2 027 427 2 Dayton 6 2 uF capacitor C3 004 6 2 Dayton 6 ohm Non Inductive resistor R1 004 16 2 Dayton ...

Page 3: ...n be mounted into the cabinet per the instructions below Screw mount port tubes The port can simply be set into place and carefully secured with the included 6 3 4 screws Be careful not to over torque the screws which may result in cracking of the plastic 2 Install Binding Posts The posts will need to be knocked into place with a hammer and secured from the inside of the cabinet Start by placing t...

Page 4: ...ed For example use one piece of foam on the right side wall on the front half of the cabinet Use a second piece on the left wall behind the brace For the top and bottom use one piece of foam on the bottom front half and one piece on the top rear half above the port This will reduce direct reflections between parallel walls on all surfaces without overdamping the system This configu ration also wor...

Page 5: ...round the hole in the baffle Either method can be used it is a matter of personal preference Thinning the bead is important to allow the drivers to sit flush in their recesses Placing a small bead of speaker sealing caulk around the driver frame Once all drivers have their gaskets they can be carefully lowered into place on the baffle Having the terminals facing towards the bottom of the cabinet i...

Page 6: ...e The following photographs are of a generic crossover assembly and will not exactly match the look of your particular system Component locations on PC board with labels Insert components into PC board securing with silicone or hot melt glue Each component will have two leads that correspond to holes on the PC boards Put the components into place with the leads going through their appropriate hole...

Page 7: ...will ensure a good flow of solder between the two After heating the board and leads for several seconds add solder to the joint to form an effective connection A good solder joint will have a conical shape and will not look blobby or spherical After all connections are made the remaining component leads on the rear of the board can be trimmed down with a pair of side cutters or other electrical cu...

Page 8: ...8 Final assembled 302 910 302 912 302 914 crossover ...

Page 9: ...re working and that the overall sound is full and smooth Even though everything is not completely secured we should still be able to get a good idea of what the overall sound will be like If a driver is not working or the sound is intermittent or distorted please see the troubleshooting section for possible remedies Be sure that you are satisfied that everything is working correctly before moving ...

Page 10: ... socket will protect the male pin while applying uniform pressure around the mounting flange It is best to install the guides with the grills laying flat on a solid surface to minimize the chance of installing the guide askew The female guides are designed to fit into the recesses where the screws attach the baffle to the cabinet They can be tapped into place with a hammer being careful not to dam...

Page 11: ... entire speaker is intermittent then check connections between the input terminals and the crossover board If just woofer or tweeter is intermittent check the wires going to the drivers If these are OK check the connections of the components within the appropriate section of the crossover Problem In stereo speakers lack bass or image is unfocused Cause Speakers are out of phase Solution Check conn...

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