Tuba HT GRS 12SW-4HE

Post your build odyssey here.
Post Reply
Message
Author
rob38888
Posts: 5
Joined: Mon Jun 13, 2022 8:49 pm

Tuba HT GRS 12SW-4HE

#1 Post by rob38888 »

Almost finished. Ran the test tones through it tonight to check for leaks around the driver and cabinet and thankfully found none. Here are a few photos. I built this as a gift for an old buddy that was generous to me a few years back. He wasn't particular on the finish and is fine with a bare box, but I might clean it up good and throw some black paint on it. I'll throw up some more photos and some in room measurements when I am done with it.

https://imgur.com/a/tSmj93I

User avatar
Tom Smit
Posts: 7325
Joined: Sat Jan 05, 2008 1:24 pm
Location: Sarnia, Ont. Canada

Re: Tuba HT GRS 12SW-4HE

#2 Post by Tom Smit »

Thumbs up.
TomS

User avatar
Seth
Posts: 2315
Joined: Thu Sep 10, 2009 8:06 pm
Location: Sacramento, California, USA
Contact:

Re: Tuba HT GRS 12SW-4HE

#3 Post by Seth »

Hmmm. Link's not working for me. Anyone else?
Build in process - 2 WH6, one Alpha 6a loaded, one PRV Audio 6MB250-NDY loaded

Two 2x6 shorty SLA Pro's
One T39, 16", 3012LF loaded
Tall AutoTuba, 20" wide, 2x 8" MCM 55-2421
TruckTuba, 8½" wide, 2x 8" MCM 55-2421

rob38888
Posts: 5
Joined: Mon Jun 13, 2022 8:49 pm

Re: Tuba HT GRS 12SW-4HE

#4 Post by rob38888 »

https://imgur.com/a/tSmj93I I signed out of imugr and was able to view the album, I'm not sure why it isn't working.

Try this link. I added a photo of the measurement I took earlier. I also added one that shows the difference between this THT and my Table Tuba. This sub is incredible. I cannot see needing any more than this. I think my buddy will be ecstatic. Going to get it looking respectable after all of the turkey day stuff. I built this thing using 23.5" panels and am powering it with a Dayton SA 100 plate amp. I'm watching Percy Jackson with the kids right now at -10db on my receiver and this thing is incredible.

User avatar
Seth
Posts: 2315
Joined: Thu Sep 10, 2009 8:06 pm
Location: Sacramento, California, USA
Contact:

Re: Tuba HT GRS 12SW-4HE

#5 Post by Seth »

Image
Image
Image
Image
Image
Image
Build in process - 2 WH6, one Alpha 6a loaded, one PRV Audio 6MB250-NDY loaded

Two 2x6 shorty SLA Pro's
One T39, 16", 3012LF loaded
Tall AutoTuba, 20" wide, 2x 8" MCM 55-2421
TruckTuba, 8½" wide, 2x 8" MCM 55-2421

howiez
Posts: 335
Joined: Sun Mar 16, 2014 5:23 pm
Location: Fox Valley, Wisconsin

Re: Tuba HT GRS 12SW-4HE

#6 Post by howiez »

Very nice!

rob38888
Posts: 5
Joined: Mon Jun 13, 2022 8:49 pm

Re: Tuba HT GRS 12SW-4HE

#7 Post by rob38888 »

Image

Thank you to Seth for adding those photos above. I think i finally figured out how to embed photos. I am almost done with this build. I had a blast playing some music and movies for all of the people that came over this weekend. Used a 3/4" nap roller on this one, really hid a bunch of blemishes. I hope my buddy takes the liberty to finish it and make it look like a false piece of furniture. I had two people ask about my table tuba and they had no idea it was a subwoofer. I'll be making two more thtlp's at some point for my basement. My kids told me, "Dad you have to build this for us. Even with the cheap ass driver I put in this thing and the Dayton SA 100, that is plenty. Can't wait to give it to my buddy.

User avatar
Tom Smit
Posts: 7325
Joined: Sat Jan 05, 2008 1:24 pm
Location: Sarnia, Ont. Canada

Re: Tuba HT GRS 12SW-4HE

#8 Post by Tom Smit »

Cheers. Looks good from here.
TomS

Fastskiguy
Posts: 111
Joined: Tue Dec 20, 2011 8:11 pm

Re: Tuba HT GRS 12SW-4HE

#9 Post by Fastskiguy »

Sure like this thread…..have been looking forward to it since the thread about this driver awhile back. That chart looks great!

Joe

Fastskiguy
Posts: 111
Joined: Tue Dec 20, 2011 8:11 pm

Re: Tuba HT GRS 12SW-4HE

#10 Post by Fastskiguy »

You know, 60$ for the driver really gets a guy thinking…..which uses less wood-tht or thtlp?

Joe

ACUA
Posts: 539
Joined: Sun Sep 25, 2016 6:21 pm
Location: Tucson Arizona

Re: Tuba HT GRS 12SW-4HE

#11 Post by ACUA »

I had the bright idea to try out some of the 8" MCM 55-2421 drivers in a Tuba45 cab. I built it 18" wide with dual drivers. So far, I have had great results with the unit. At about $35 each, and $70 for a pair I thought that was a good price to performance ratio. As I recall the displacement of two of those 8" drivers falls between the displacement of a typical single 10" and 12" driver. That means that for $60, the 12" GRS driver is likely a better cost to output ratio than those MCM drivers! I need to keep this driver in my radar!!! Thanks for posting this I am personally interested to see how it plays out.
Advanced Concepts Underground Audio

Post Reply