Dayton Audio RS621CMK Speaker Kit Pair Curved Maple - Manual (Page 4)

Now that the posts are fully secured, 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 is normally
positioned on the right side.
2. Install damping material
The damping material included is intended to line the walls of the cabinet to reduce reflections and help prevent
standing waves. The included foam will need to be cut to size and then secured onto the walls of the cabinet. Note:
There might be excess material available; it is not necessary to use all of it. Do not place foam directly on top of or
underneath the crossover board.
Alternating the foam location between walls is recommended. 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. For the top and bottom, use one piece of
foam on the bottom front half, and one piece on the top rear half. This will reduce direct reflections between parallel
walls on all surfaces without overdamping the system. This configuration also works well by leaving us plenty of
room for installing the crossover board.
The damping material can be secured to the walls with a spray adhesive or with hot-melt glue. When using spray
adhesive, please follow the manufacturer’s instructions. It is best to apply the spray to the foam itself, being sure to
spray away from the cabinet to prevent getting adhesive on the cabinet exterior. When using hot-melt glue, simply
place a few drops of glue at various locations on the rear of the foam and press into place.
3. Install drivers in baffle
The drivers need to be secured to their baffles with the included #6 screws. For all driver installations, we have
included gasketing material that should be used between the driver frames and the baffles to prevent air leaks and
vibrations. This can be done with a small bead of speaker sealing caulk between the cabinet hole and the driver
frame.
The caulk needs to be thinned in diameter by working with the fingers into roughly a 1/8" diameter bead. The
bead can be placed around the rear of the driver flange or around 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.
The drivers can now be carefully lowered into place on the baffle. Having the terminals facing towards the bottom of
the cabinet is the generally accepted orientation, though it is not a critical matter. Using the included screws and pre-
drilled pilot holes, carefully tighten the drivers down onto the baffle. Pay particular attention to not over-tighten
screws on drivers with stamped steel or polymer frames, which can cause deformation of the flange.
4. Crossover Assembly Instructions
For the system to perform properly, it is important that the crossovers be assembled correctly. Incorrect assembly
can cause damage to the speaker drivers or your amplifier, so please take time to work carefully and to check your
work as you go.
The crossover boards have a printed pictorial layout on them that includes an outline of the component and a part
label. Please refer to the parts list and schematic for a list of which components go in each location. Match the
component label from the description on the parts list to the label on the PC board.