THT placement. Just pulled it out of retirement!

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Seth
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Re: THT placement. Just pulled it out of retirement!

#31 Post by Seth »

Flip the sub over so the mouth is nearer the floor or lay the sub on it's side. If it were me, I'd only cut the hole in the drywall the dimensions of the mouth, leaving any studs in place, case and frame the hole. Maybe stretch some grill cloth over an insert and stick it in the hole to hide any unsightly-ness with studs and whatnot. That way, it's really easy to undo. A little plug, patch, putty, texture, and paint 'n you're all back to a normal looking wall again.

Definitely test first. Move the sub left and right along the wall, run your test track, and walk around the room listening for the most even coverage throughout the space while giving priority to your primary listening position. Move it and test it a bunch of times. You may find a couple inches one way or the other with the sub position might make a large difference of how it sounds in the room. So, take your time and focus on the sound, NOT where a hole will look best on the wall. My guess is it will sound best as close to the 45º corner on the left as possible or even firing into the nook with the door on the right, through the wall from behind the door in this pic.

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

Comatoast
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Joined: Thu Nov 02, 2023 7:48 pm

Re: THT placement. Just pulled it out of retirement!

#32 Post by Comatoast »

Bill Fitzmaurice wrote: Sat Dec 02, 2023 5:42 pm You can test it by aiming the sub mouth at the wall from a foot away. It will give the same in room response as flush mounting in the wall. Once in the wall anything in front of it will have no effect on the sound. Fourteen foot wavelengths go around obstacles. But anything in front of it will probably vibrate.
Sounds good. Thank you sir. I did see you mentioned that previously, but just wanted to make sure I read it right lol

Comatoast
Posts: 19
Joined: Thu Nov 02, 2023 7:48 pm

Re: THT placement. Just pulled it out of retirement!

#33 Post by Comatoast »

Seth wrote: Sat Dec 02, 2023 7:43 pm Flip the sub over so the mouth is nearer the floor or lay the sub on it's side. If it were me, I'd only cut the hole in the drywall the dimensions of the mouth, leaving any studs in place, case and frame the hole. Maybe stretch some grill cloth over an insert and stick it in the hole to hide any unsightly-ness with studs and whatnot. That way, it's really easy to undo. A little plug, patch, putty, texture, and paint 'n you're all back to a normal looking wall again.

Definitely test first. Move the sub left and right along the wall, run your test track, and walk around the room listening for the most even coverage throughout the space while giving priority to your primary listening position. Move it and test it a bunch of times. You may find a couple inches one way or the other with the sub position might make a large difference of how it sounds in the room. So, take your time and focus on the sound, NOT where a hole will look best on the wall. My guess is it will sound best as close to the 45º corner on the left as possible or even firing into the nook with the door on the right, through the wall from behind the door in this pic.

Image
That's the way I've always had it with the sub mouth on the floor, but in that particular position it actually sounded better with the mouth up...

I will definitely only be cutting a hole in the wall where the mouth is.

Any particular track or test tone or YouTube video that you guys use for finding the exact placement where it should go and for room listening? Or just play a 30 hz test tone and see where it sounds best?

That little nook you're talking about is just the entry way into the bedroom.. oddly enough, that's where the sub sounds the loudest when I'm walking around the room and I'm sure it's just because I'm in that little cubby. But man if I could get the whole room to sound like that or even the listening position I would be ecstatic.... Unfortunately that opening is about the same width of the sub, so it'd be really hard to push the sub over there and do some testing on it


Please don't mind our crappy Walmart chair lol. Waiting for our chase couch to get here, but I'm impatient and need my AV / bass fix 😂
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Seth
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Re: THT placement. Just pulled it out of retirement!

#34 Post by Seth »

Comatoast wrote: Sun Dec 03, 2023 3:54 pm That little nook you're talking about is just the entry way into the bedroom.. oddly enough, that's where the sub sounds the loudest when I'm walking around the room and I'm sure it's just because I'm in that little cubby. But man if I could get the whole room to sound like that or even the listening position I would be ecstatic.... Unfortunately that opening is about the same width of the sub, so it'd be really hard to push the sub over there and do some testing on it
Try doing the Sub Crawl. You very well may luck out and find that location is a good location. It looks to me as though it could be. Place the subwoofer at the primary listening position in the room, play a track or several tracks that has many bass frequencies, play some test tones too, get on your hands and knees, and crawl around the perimeter of the room listening for locations that are louder. Placing the subwoofer in those locations is very likely to sound amazing at your primary listening position.

Any particular track or test tone or YouTube video that you guys use for finding the exact placement where it should go and for room listening? Or just play a 30 hz test tone and see where it sounds best?
Play music and test tones. Frequency response in the room will change with frequency. Take written notes and choose a location with the best compromise of frequency response.

Not necessarily recommended test material, but you may find some enjoyment in this link DJ Siryn Videos
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

Comatoast
Posts: 19
Joined: Thu Nov 02, 2023 7:48 pm

Re: THT placement. Just pulled it out of retirement!

#35 Post by Comatoast »

Seth wrote: Sun Dec 03, 2023 4:32 pm
Comatoast wrote: Sun Dec 03, 2023 3:54 pm That little nook you're talking about is just the entry way into the bedroom.. oddly enough, that's where the sub sounds the loudest when I'm walking around the room and I'm sure it's just because I'm in that little cubby. But man if I could get the whole room to sound like that or even the listening position I would be ecstatic.... Unfortunately that opening is about the same width of the sub, so it'd be really hard to push the sub over there and do some testing on it
Try doing the Sub Crawl. You very well may luck out and find that location is a good location. It looks to me as though it could be. Place the subwoofer at the primary listening position in the room, play a track or several tracks that has many bass frequencies, play some test tones too, get on your hands and knees, and crawl around the perimeter of the room listening for locations that are louder. Placing the subwoofer in those locations is very likely to sound amazing at your primary listening position.

Any particular track or test tone or YouTube video that you guys use for finding the exact placement where it should go and for room listening? Or just play a 30 hz test tone and see where it sounds best?
Play music and test tones. Frequency response in the room will change with frequency. Take written notes and choose a location with the best compromise of frequency response.

Not necessarily recommended test material, but you may find some enjoyment in this link DJ Siryn Videos

I'll do the sub crawl.... Again lol.. so when the tht is at the MLP should the mouth be firing against the wall, or in room?

Thanks for the link.. I'll check it out!


And for you, or anyone else who loves deep bass... I've been doing music bass since the 90s when I was in db drag racing and iasca stereo comps ( for cars ) so I've heard it all from remixes to chopped and screwed to bass boosted polka lol


Yes... This user isn't well known. But the bass on his remixes are very very good and clean

https://youtube.com/@TheHantaboy?si=5-duDmUMs0fDa79l

Comatoast
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Joined: Thu Nov 02, 2023 7:48 pm

Re: THT placement. Just pulled it out of retirement!

#36 Post by Comatoast »

May I suggest this as a first listen ? 😉

https://youtu.be/ShGDdUyZqeU?si=P5MPHZrEf1T6QiOm

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Seth
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Re: THT placement. Just pulled it out of retirement!

#37 Post by Seth »

Comatoast wrote: Sun Dec 03, 2023 5:36 pm I'll do the sub crawl.... Again lol.. so when the tht is at the MLP should the mouth be firing against the wall, or in room?

Thanks for the link.. I'll check it out!


And for you, or anyone else who loves deep bass... I've been doing music bass since the 90s when I was in db drag racing and iasca stereo comps ( for cars ) so I've heard it all from remixes to chopped and screwed to bass boosted polka lol


Yes... This user isn't well known. But the bass on his remixes are very very good and clean

https://youtube.com/@TheHantaboy?si=5-duDmUMs0fDa79l
Seems like you've got test tracks covered. LOL And, you're right, good clean rebassed songs.

If you put the mouth roughly where your head would be, you'll get the best results. Doesn't matter which direction the mouth is facing.
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

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