Hi all, this is my first post and I could use some help. I'm looking to build some subwoofer cabinets and I'm trying to figure out what is the most efficient box to build. I have built many cabinets in the past but that was a long time ago. I was looking at some of the Bill Fitzmaurice designs like the T-48 but my concern is being able to corner load them or use a V plate or any of the things that make them extend down lower. In my area clubs don't give you a lot of options as to where you can put your pa system. I like the idea of horn loading but I still want to get lower freq without building a box the size of a refrigerator.
I was looking to build a box like the old Carvin TRX 2-18" sub: https://cdn.shopify.com/s/files/1/0476/5297/files/TRx2218b_data_sheet.pdf?545461390985538386
my concern there is needing to feed the cabinet a ton of power to get what I want out of it.
I hear that Jbell came up with a partial horn design and there is also a box called a THAM that shows promise but I don't know enough about either one to make a decision.
I hoping that someone here has actually heard or used some of these cabinets and can comment or can recommend something even better.
I'm an Eminence speaker dealer so I would prefer to use them as I can get a better price on them. But I'm not ruling out going with another speaker if that's going to be better.
what do you suggest?
I was looking to build a box like the old Carvin TRX 2-18" sub: https://cdn.shopify.com/s/files/1/0476/5297/files/TRx2218b_data_sheet.pdf?545461390985538386
my concern there is needing to feed the cabinet a ton of power to get what I want out of it.
I hear that Jbell came up with a partial horn design and there is also a box called a THAM that shows promise but I don't know enough about either one to make a decision.
I hoping that someone here has actually heard or used some of these cabinets and can comment or can recommend something even better.
I'm an Eminence speaker dealer so I would prefer to use them as I can get a better price on them. But I'm not ruling out going with another speaker if that's going to be better.
what do you suggest?
Greets!
Personally would do like Danley and others; design a ~full size horn, then divide it up into 'x' number of little cabs for stacking. Some extra cost in wood, drivers, but much less power required, less expensive drivers to offset it somewhat.
Personally would do like Danley and others; design a ~full size horn, then divide it up into 'x' number of little cabs for stacking. Some extra cost in wood, drivers, but much less power required, less expensive drivers to offset it somewhat.
So I see, now. 🙁 There's probably some here, just don't follow any of the builds, figuring others more active would chime in and I can't find the Danley example ATM.
Anyway, presume you want the Carvin's low end specs and at a glance the THAM meets it, but it's a tapped horn [TH], ergo is limited to only a ~137 Hz F3/~150 Hz F10, so what's your minimum XO point?
32 Hz – 2K Hz (-10dB)
38 Hz – 1.5K Hz (-3dB)
Anyway, presume you want the Carvin's low end specs and at a glance the THAM meets it, but it's a tapped horn [TH], ergo is limited to only a ~137 Hz F3/~150 Hz F10, so what's your minimum XO point?
32 Hz – 2K Hz (-10dB)
38 Hz – 1.5K Hz (-3dB)
all I really need is a loud and clear 40-80hz. I wouldn't need to go higher unless I use some BFM Otops. I think I would need to go up to 100-120hz for the Otops I heard somewhere.
Tapped horn is also what i would use for this. They go loud and low in a relative small package. There are rather good plans on this forum that can do what you need for that:
TH-18 Flat to 35hz! (Xoc1's design)
TH-18 Flat to 35hz! (Xoc1's design)
I would understand you would stick to the size of those T-48 and TRX. But they can't handle below 50Hz. Imo you barely can't call that a sub.
I don't know what kind of music you are listening or HT-stuff, but mention for the full spectrum of a piano you need to go below 30Hz; for an organ even below 20 Hz.
Recently I built a sub reaching 14Hz and I'm so glad I did. There is so much to discover out there.
So to stay with Eminance and keep it around 400L, why not take 2 Lab12 drivers. Look at this graph. Steady from 19Hz on 115dB by 350W.
I don't know what kind of music you are listening or HT-stuff, but mention for the full spectrum of a piano you need to go below 30Hz; for an organ even below 20 Hz.
Recently I built a sub reaching 14Hz and I'm so glad I did. There is so much to discover out there.
So to stay with Eminance and keep it around 400L, why not take 2 Lab12 drivers. Look at this graph. Steady from 19Hz on 115dB by 350W.
