Down Firing Voxel with SA70 Amp

[KEtheredge87]

I think you're OK taking the original voxel design and making it downfiring with feet if you like, just make sure the woofer has plenty of clearance to the floor. My downfiring version has the woofer an inch or two higher than the feet for clearance purposes. Think about what floor you have too. Deep pile carpet, or hardwood? The carpet will stick up higher than your feet.

[master slacker]

This is great. I've got a simple 2.1 setup using Overnight Sensations and an old computer subwoofer. I don't know where I should best ask this (this thread or the original Voxel thread), but I'll post it here regardless. Is there anything inherently wrong with taking the original Voxel design and adding rubber feet on the baffle to make it down firing? Understood it will still be passive in design (same as my current setup), but it shouldn't be "wrong" with it, correct?

[KEtheredge87]

9sheng Looks great glad you enjoyed building it!

[9sheng]

My subwoofer is finished. Thank You Keith Etheredge!

9sheng

[KEtheredge87]

Thanks Craig! This little sub has been in service for 3 years now and still going strong!

[craigk]

Very nice work, as always.

[9sheng]

My Speaker received , I want to build my own VOXEL SUB.

[KEtheredge87]

I've been following this sub build with a deal of interest. I sold a pair of my column full range speakers to a friend who now wants a small sub to compliment them. They have a small apartment and I think this will be ideal. I especially like the down firing aspect. Your sub looks very neat and compact. Well done!
Regards John L.

Thanks John! Like I mentioned a few posts up, the only thing to consider very closely if you wanted to use the sub as I did is to check your port velocities. If your buddy wants to pump some serious bass, there may be some port noise to deal with too. I made this for my mom (decidedly NOT a bass-head) so no worries on my use case!

[SV Impunity]

I've been following this sub build with a deal of interest. I sold a pair of my column full range speakers to a friend who now wants a small sub to compliment them. They have a small apartment and I think this will be ideal. I especially like the down firing aspect. Your sub looks very neat and compact. Well done!
Regards John L.

[Evan Steeves]

Thanks Evan, In many ways I find that woodworking is it's own form of therapy. There's always something new to try, and always something new to learn! Painting however... I do NOT find theraputic. The Heliums I was building at the same time as this Voxel kept having some baffle cracking issues due to an undersized press fit tweeter hole, so I had to sand all the finish down to bare wood and repaint... 3 TIMES!!!!

Enjoy your subwoofer build!

Yeah, I have to agree with you there. The woodworking, you can mess up and fix fairly easily. Or, find alternate and creative solutions around it. But painting, from my experience with cars, rims, car parts especially, is a big pain. Of course with painting, it's all in the prep work, which means LOTS of time, and if you do mess up and get to the later stages, all the work is scrapped!

[KEtheredge87]

man, I LOVE your worksmanship. Getting me inspired to push my woodworking skills to the next level when I get to building my sub (currently finishing my Sunflower center channel). Will be buying myself a good Rabbetting bit next :D

Nice work and thank you for sharing! Love the paint job as well!

Thanks Evan, In many ways I find that woodworking is it's own form of therapy. There's always something new to try, and always something new to learn! Painting however... I do NOT find theraputic. The Heliums I was building at the same time as this Voxel kept having some baffle cracking issues due to an undersized press fit tweeter hole, so I had to sand all the finish down to bare wood and repaint... 3 TIMES!!!!

Enjoy your subwoofer build!

[Evan Steeves]

man, I LOVE your worksmanship. Getting me inspired to push my woodworking skills to the next level when I get to building my sub (currently finishing my Sunflower center channel). Will be buying myself a good Rabbetting bit next :D

Nice work and thank you for sharing! Love the paint job as well!

[KEtheredge87]

Hi Everyone,

Just throwing this out there. I've finally documented my down firing version of Paul Carmody's Voxel subwoofer design. I still need to update my pictures thread for the final few steps I took, but the design details are done. I was very impressed by the amount of bass this thing puts out! I paired it with the Dayton SA70 plate amplifier, which drives this subwoofer well. This was the first ported design I've worked on, as well as the first design I ever simulated for design outcomes. I've learned a good deal from this project, so I'd like to thank those guys who helped me along the way. Special thanks to Paul C. for sharing his Voxel design with us!

A word on chuffing... I feel like I am pushing the limits of port size HARD in this small enclosure (BassBox says I'm getting ~25 m/s velocity at 34 Hz). I had to spend significant effort to get a functional design that didn't chuff audibly in bass heavy songs. It handled rock music well, but heavy bass from some electro / techno music wasn't going to happen. Adding some length and an internal flare helped cure most of my issue, but it can still show up given the right material.

Having said all that, This little guy is providing the oomph for a 5.1 setup with Helium speakers. He'll be used for casual listening, not attempting to shake down the house. He'll do a great job in that regard! If someone wants to try this design with a different port arrangement, or maybe a passive radiator or two... I'm all for it. There's just not enough room in a tiny box for a port that's well matched to the air this guy is moving at higher power levels!

[Kevin K.]

Just opened your edit to the first post that includes all of the build pics so far. Looks great! I really like the shape of the sub enclosure and it looks really good with all of the round over treatments. Have you decided on a color? Yea, most guys go with traditional black but you mentioned these were for your Mom. I've seen some pretty good looking cabinets done in white. Food for thought. Keep up the good work!

[Kevin K.]

Was just curious. Good luck getting the sled worked out. Looking forward to your build.