Click on image to enlarge
Building The Apex lls and the Apex C

Received a request to build the cabinets for the speakers listed above.
The kits containing all the parts except the cabinet are available from:

                                                             http://www.rawacoustics.com/

Downloaded the cabinet plans from the link above, and made a cutout guide for the pieces
needed, using ¾" Baltic birch, it required 3) 4' X 8' sheets.  Guides below:



The Apex ll (cutting list is for two units).
Click on image to enlarge

The Apex C (center channel).
Click on image to enlarge

After cutting out all the pieces, started the assembly.


Partially assembled Apex ll
Click on image to enlarge

Partially assembled Apex C
Click on image to enlarge

Next: Obtained some Masonite and assembled the crossovers, using brass screws and nuts as terminals.



Apex ll woofer crossover.
Click on image to enlarge

Apex ll mid crossover.
Click on image to enlarge

Apex ll tweeter crossover.
Click on image to enlarge

Apex C woofer crossover
Click on image to enlarge

Apex C mid crossover.
Click on image to enlarge

Apex C tweeter crossover.
Click on image to enlarge

Made a wiring harness and installed the crossovers in the Apex ll.
Click on image to enlarge
Made a wiring harness and installed the crossovers in the Apex C.
Click on image to enlarge

Click on image to enlarge
The Apex ll
The level control for the rear firing mid driver is installed along with
the capacitor for protection. A mounting plate was fabricated from scrap
aluminum, because the control shaft was too short to reach through
the birch. The input terminal was also installed. Note:
The recommended hook up to the level control is shown, however, the
hookup was changed as this hookup increased the level to the rear
firing driver by turning the control counterclockwise.
It was felt a clockwise rotation should increase the level.

The Basic boxes with driver holes cut.
Click on image to enlarge

Rear view of the basic boxes.
Click on image to enlarge

½" MDF is added to the front, and ¼" MDF
has been added to all other sides.
Click on image to enlarge

¼" cherry plywood, MDF core, has been added to the front.
A ¾" X ¾" groove is left around the entire front.
A 3/8" X 3/8" groove is routed on the front to back edges 
and around the entire back edges. Driver holes have
routed for a flush fit.
Click on image to enlarge

Quarter-round moldings have been installed on all edges.
Click on image to enlarge
 The cabinets are sanded and ready to go to the finisher. The plan is to
stain the cherry fronts with a custom red hue, and paint the tops, sides, 
back, round over edges and bases with a "piano black", and clear coat 
the entire box.

Before sending to the finishers we decided to install the drivers to
test the fit and check the phase to ensure connections were proper.
We had followed the supplier's wiring instructions, and determined
that in practice, the Apex C's woofers and mids were out of phase
with the Apex lls. Swapping the plus and minus connections on the 
Apex C's input terminals solved this problem with the woofers and 
mids. The severe "bass suck out" was now fixed. 
This procedure left the Apex C's tweeter out of phase with the 
tweeters in the Apex lls. We then reversed the tweeter connections
in the Apex C. Once the speakers are in their intended position. it may
require that the Apex C's tweeter connection be restored to its
original hook up. lots of tweaking to be done then.
 

 

Click on image to enlarge
The finished left speaker

Click on image to enlarge
The finished Right speaker


Click on image to enlarge
The finished center speaker



Pheromones | Finasteride 5mg | Download movies | Cheap Mp3s | Laptop Parts