WinISD has a "mass added to cone" function. Driver efficiency can drop considerably, so watch those power requirements.
zman, you'd be lucky to get such a bandwidth out of a tapped horn.
If you could drop the requirements to 80Hz, that would make things easier.
That driver's larger sibling (the 6.5" version) has been shown to work well in many tapped horns. I have 2 of them hitting 25Hz. Just about.
A single 5"... I'm not sure that would be enough to go so low.
Chris
Chris,
Probably I'm asking too much with such wide bandwidth with a tapped horn
. 80 Hz would be ok, and IIRC that also meets the THX standard. There's also an 8" model:
http://www.tb-speaker.com/detail/1208_03/w8-1363sb.htm
Would that do better?
If not a tapped horn, what else would you recommend, specially for wider bandwidth?
Thx,
Zia
Probably I'm asking too much with such wide bandwidth with a tapped horn
. 80 Hz would be ok, and IIRC that also meets the THX standard. There's also an 8" model:http://www.tb-speaker.com/detail/1208_03/w8-1363sb.htm
Would that do better?
If not a tapped horn, what else would you recommend, specially for wider bandwidth?
Thx,
Zia
The 8" model certainly offers more displacement. To be honest, I'm not the one to be asking to simulate things in Hornresp. I can get graphs out of it, but nothing great.
If you wanted wide bandwidth, I'd consider sealed or ported. Maybe a front loaded horn (think it's jbell that's done some work on these).
Are you sure you want to go to 20Hz?
If you wanted wide bandwidth, I'd consider sealed or ported. Maybe a front loaded horn (think it's jbell that's done some work on these).
Are you sure you want to go to 20Hz?
A SEAS L26ROY 10" subwoofer plays happily in 20L sealed and should give an excellent response to sub frequencies when cabin gain is factored in (it's -10dB at 31Hz without any gain).
Give it a quality, powerful amplifier and it should produce great sound, extension and SPL. Not the lightest driver by the looks of it though (10kgs):
THE ART OF SOUND PERFECTION BY SEAS - D1001-04 L26ROY
Give it a quality, powerful amplifier and it should produce great sound, extension and SPL. Not the lightest driver by the looks of it though (10kgs):
THE ART OF SOUND PERFECTION BY SEAS - D1001-04 L26ROY
My response was primarily for the OP, who did not specify a budget. 10kg is a lot though, but I doubt it'll hit fuel econemy too hard in most cars?
Lightweight box construction can be achieved by using thin plywood (perhaps even 9mm) but with a lot of shelf braces to increase rigidity (as per post #3). Actually should work out to be a very effective construction for a bass cabinet.
A sealed design can be made to an irregular shape without concerns about how to install the port, ie; it could be a very flat box without concern about where to install a long port. Sealed response roll-off should better complement cabin gain too.
Lightweight box construction can be achieved by using thin plywood (perhaps even 9mm) but with a lot of shelf braces to increase rigidity (as per post #3). Actually should work out to be a very effective construction for a bass cabinet.
A sealed design can be made to an irregular shape without concerns about how to install the port, ie; it could be a very flat box without concern about where to install a long port. Sealed response roll-off should better complement cabin gain too.
A tapped horn is a horn where the driver is placed part way along the expansion path.
Tapered is something totally different.
Cool and thanks. Both kinds involve design considerations I have never tried to untangle beyond getting, at a basic level, the whole leverage idea...
The F3 is 25Hz, but they roll off too fast for the F10 to be usable.
The black line is the Tang Band.
Mick, if you wanted to experiment with tapped horns in hornresp, I found this diagram very useful:
Chris
Thanks Chris I will Am kinda buried in electronics related experiments (crossovers and and headphone amps mostly) ATM thanks to Rod Elliot's site. But before long enclosure design is going to have to smarten up (further).
I have recently put a sub in our second car, for listening to Bach's organ works mostly, perhaps a horn will get me down even lower than I can go currently in the lounge.
I'll get out of the way now, thanks.
Am kinda buried in electronics related experiments (crossovers and and headphone amps mostly) ATM thanks to Rod Elliot's site. But before long enclosure design is going to have to smarten up (further). I have recently put a sub in our second car, for listening to Bach's organ works mostly, perhaps a horn will get me down even lower than I can go currently in the lounge.
I'll get out of the way now, thanks.
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