Hi all,
Some time ago house needed some renovation and during it there was need to take apart one of closet cabinets to reach insulation materials behind it. After project was over there was just empty recess in wall. But there was never urgent need for new cabinet and recess stayed..
This recess face dining area where I have keeped vintage Technics SU-8055 amp with some small bookshelf speakers. I play quite lot internet radio here with my Ocean digital WR-10 internet radio.
Recently when I moved old projects and enclosures to warehouse I noticed that my unused JBL 4645B subwoofer enclosures fit perfectly to this recess when flipped to sides. These big enclosures (8cuft/225L each) could make 1.1 mono system which would be perfectly hided behind sturdy wooden frame which could be covered with white or grey cloth.

I was thinkin about:
Upper 8cuft enclosure (sealed)
*Fane 15-300TC (owned already)
---> HP LR12db at F3
Lower enclosure:
JBL 2240H (already have this also)
---> LP LR24db at Fanes F3
Fane 15-300TC models in 8cuft sealed by having F3 of 59Hz and qtc seems to be way over 0.7 because response is peaking. It could be handled with series cap or Minidsp Nanodigi.
JBL 2240H is not so great choice for 8cuft sealed (I would prefer sealed subwoofer in this project) and its F3 seems to be 98Hz and due to low xmax thinking its not possible to make linkwitz transform for it.
Im searching for 18" woofer which has specs to suit:
*8cuft sealed with F3 that make it useful for subwoofer in this project.
*Keep up with 15-300TC
*Suits for low powered SU-8055 (47W, Damping factor 16 (4 ohm) 36 (8 ohm)
I once read from user Linesource´s post that he prefers 18" woofers with modest Le and Mms, I understood that this was because of lower power needs. But he was suggesting them for stereo speakers and 2pcs per side if remember correctly.
Thisfar my candidate for subwoofer is Peerless FSL-1830R09-08.
It offers F3 of 47Hz in 8cuft sealed.
Peerless by Tymphany FSL-1830R09 - 18" Subwoofer
I think Technics could handle it.
But there is temptation to get more sturdy driver like Lavoce SAN184.03 and convert SU-8055 speaker level signal to line level and drive LAVOCE from Crown amp with Linkwitz transform.
LaVoce SAN184.03 - 18" Subwoofer
I dont know which way to choose with sub..
I would appreciate any suggestions or comments for my subwoofer choices
Some time ago house needed some renovation and during it there was need to take apart one of closet cabinets to reach insulation materials behind it. After project was over there was just empty recess in wall. But there was never urgent need for new cabinet and recess stayed..
This recess face dining area where I have keeped vintage Technics SU-8055 amp with some small bookshelf speakers. I play quite lot internet radio here with my Ocean digital WR-10 internet radio.
Recently when I moved old projects and enclosures to warehouse I noticed that my unused JBL 4645B subwoofer enclosures fit perfectly to this recess when flipped to sides. These big enclosures (8cuft/225L each) could make 1.1 mono system which would be perfectly hided behind sturdy wooden frame which could be covered with white or grey cloth.

I was thinkin about:
Upper 8cuft enclosure (sealed)
*Fane 15-300TC (owned already)
---> HP LR12db at F3
Lower enclosure:
JBL 2240H (already have this also)
---> LP LR24db at Fanes F3
Fane 15-300TC models in 8cuft sealed by having F3 of 59Hz and qtc seems to be way over 0.7 because response is peaking. It could be handled with series cap or Minidsp Nanodigi.
JBL 2240H is not so great choice for 8cuft sealed (I would prefer sealed subwoofer in this project) and its F3 seems to be 98Hz and due to low xmax thinking its not possible to make linkwitz transform for it.
Im searching for 18" woofer which has specs to suit:
*8cuft sealed with F3 that make it useful for subwoofer in this project.
*Keep up with 15-300TC
*Suits for low powered SU-8055 (47W, Damping factor 16 (4 ohm) 36 (8 ohm)
I once read from user Linesource´s post that he prefers 18" woofers with modest Le and Mms, I understood that this was because of lower power needs. But he was suggesting them for stereo speakers and 2pcs per side if remember correctly.
Thisfar my candidate for subwoofer is Peerless FSL-1830R09-08.
It offers F3 of 47Hz in 8cuft sealed.
Peerless by Tymphany FSL-1830R09 - 18" Subwoofer
I think Technics could handle it.
But there is temptation to get more sturdy driver like Lavoce SAN184.03 and convert SU-8055 speaker level signal to line level and drive LAVOCE from Crown amp with Linkwitz transform.
LaVoce SAN184.03 - 18" Subwoofer
I dont know which way to choose with sub..
I would appreciate any suggestions or comments for my subwoofer choices
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I don't think thats an appropriate place for speakers, to be build in some free space in the house floor. Do you really want to sit in the cold floor and listen to music in that location?
Where you put the rest of the system, in the next free corner of the floor space?
Btw, even a mono speaker should stand freely and be movable. No good idea to just place it in the wall.
Where you put the rest of the system, in the next free corner of the floor space?
Btw, even a mono speaker should stand freely and be movable. No good idea to just place it in the wall.
I don't think thats an appropriate place for speakers, to be build in some free space in the house floor. Do you really want to sit in the cold floor and listen to music in that location?
Where you put the rest of the system, in the next free corner of the floor space?
Thanks for comment.
As I wrote in first post: speakers point directly to 8-seat dining table which is approx three meters away.There are at least three seats on axis concerning upper fullrange, and no need to seek free corners for rest of the system, they are already in nice rack.
I plan to rise fullrange enclosure little bit over ear height if Fanes response needs it, or try to fix it with Minidsp.
Btw, even a mono speaker should stand freely and be movable. No good idea to just place it in the wall.
I thought that wall mounting would help with SBIR effects that could be problematic to eq.
If you ever find that Peerlesss FSL driver in stock anywhere, please let me know! It seems very hard to buy. Might be a factor in your project . . .