[robertcharles123]

The way the mass is loaded is fantastic. That is a truly unique design. Nice job on the build.

Good luck,

Robert

 

[Wildcard26]

I am impressed with just the look of that little bad boy. Cheers!

 

[Owen Bartley]

Mike, you work fast! I almost completely missed this thread! I knew about halfway through that you would be happy with this little sub, it really is impressive for a 10 incher. Great work on the design and build. I can't wait to see it finished and with the spikes.

 

[Mike P.]

Yes, I'm very impressed with this sub. After seeing Rodny's fantastic piano black finish, I'm not sure how I'm going to finish mine. Maybe I'll do a "Canadian Piano Black", spray on truck bed liner! :bigsmile:

 

[Ricci]

The way the mass is loaded is fantastic.

Robert

+1. That's really convenient.

 

[Rodny Alvarez]

Yes, I'm very impressed with this sub. After seeing Rodny's fantastic piano black finish, I'm not sure how I'm going to finish mine. Maybe I'll do a "Canadian Piano Black", spray on truck bed liner! :bigsmile:

Just pay the shipping round trip and I"ll painted for you!!:bigsmile:

 

[Pinhead-227]

Just one question, what is the advantage of PR's versus ports? According to WinISD, with the exact same box size, using the same sub, the ported enclosure beats the PR enclosure all through the freq range. What am I missing?

 

[Mike P.]

Apply the HPF on the models so the cone excursion is the same and ported has a 1 db advantage which is unnoticeable. What caught my attention with the CSS kit is the PR's are externally adjustable, I can change the tuning depending on how the sub interacts with the room.

 

[Pinhead-227]

Ah, I see. Other than that, though, nada?

 

[Mike P.]

You get a slightly smaller box since the PR's displace less than a port, no port noise, and it looks cool! I have read that some people prefer the sound of a PR compared to a ported, I haven't had enough time with the sub yet to see if there is a difference.

 

[fredk]

Your measured output is amazing. How do you get that sub playing flat to 10Hz when, in modelling, it has output that falls off a cliff at around 23Hz??

 

[Mike P.]

That's the effect of room gain, which are specific to the room I measured the sub in. Bear in mind the sub was corner loaded and the SPL meter was one meter away. This was just a test to see what the sub would do. I'm hoping to post a REW graph next week when I get home from work.

 

[Owen Bartley]

Yes, I'm very impressed with this sub. After seeing Rodny's fantastic piano black finish, I'm not sure how I'm going to finish mine. Maybe I'll do a "Canadian Piano Black", spray on truck bed liner! :bigsmile:

Yeah, Rodny's piano black really put us all to shame. :foottap: Is that a bannable offense!? Can someone at least put him on probation for outclassing us like that? :whistling:

 

[Mike P.]

Here's a quick update. All holes filled and sanded, 3/4 inch round over done to all edges and final sanding done.

First coat of sealer done. I'll do a second coat later on tonight after this one dries. Tomorrow hopefully it'll be warm enough outside so I can paint the box. I have all the parts cut and glued together for the grills and will start on that tomorrow as well.

 

[Rodny Alvarez]

looking good Mike!!!!:T

 

[Owen Bartley]

Yeah, it looks great! Are you going to cover the PR's too, or will they be left exposed? I guess since you said "grills" you're building more than one. Either way, I like the roundover all around.

 

[Rodny Alvarez]

Mike, did you used the wood putty or the bondo to sealed the holes?

 

[Mike P.]

I had to use wood putty as it was too cold outside to use the bondo. (I don't have a shop)

 

[Mike P.]

Got the grills done. Since the sub and PR's are surface mounted the grills are simple to build using a "friction fit" method. First glue two pieces of MDF together and cut a circle 12 inches in diameter.

Round over the out side edge.

Cut out the inside of the grill just a hair smaller then the diameter of the sub and the PR's. A few minutes of hand sanding the inside ensures a perfect fit.

Grill frame sanded and painted black.

Grill cloth attached to frame.

Cabinet painted and components installed.

Grills installed.

 

[Owen Bartley]

Mike, that's a good lookin' cube. Are the grills pretty snug on there? No worry they'll rattle loose? How do you have it set up in the room... is the non-driver side facing a wall? Would there be any negative effects of one of the PR's facing a wall if it was placed in a corner?