Hi everyone !
I'm working on a project with very strict conditions. I am looking for a 4'' (or less) full range driver that would work in a sealed enclosure with a volume of 1 to 1.3L.
To make things a bit harder I would love decent bass (for this size). I know it will never be able to hit too low, but as much as possible.
I've tried a few combinations already, but nothing really satisfied me...
I'm open to all suggestions, even with passive radiators or a two way configuration if there is no other option.
Thanks for your help 😀
I'm working on a project with very strict conditions. I am looking for a 4'' (or less) full range driver that would work in a sealed enclosure with a volume of 1 to 1.3L.
To make things a bit harder I would love decent bass (for this size). I know it will never be able to hit too low, but as much as possible.
I've tried a few combinations already, but nothing really satisfied me...
I'm open to all suggestions, even with passive radiators or a two way configuration if there is no other option.
Thanks for your help 😀
That's really small to get any bass. Is the 1-1.3 liter limit firm? I built a pair of Passive-Aggressives that I highly recommend, but they are a little more than 2 liters.
Passive Aggressive Mini Speaker Kit Pair
Passive Aggressive Mini Speaker Kit Pair
I've seen those ! Nice build btw !
Unfortunatly, this limit is pretty firm... I'm retro fitting in my old grand parents radio and I need a bit of space to fit the class D amp and the repurposed original potentiometers.
One way I could work around this limitation could be to go mono, and thus multiplying my volume available by 2.
Depends what your definition of bass is.
With a 4" driver or less, in a 1L enclosure, I doubt you will get better than 120Hz. Probably higher if you decide to play a little loud.
If that satisfies you, then great. If you were expecting 50Hz, then nope. Not going to happen.
With a 4" driver or less, in a 1L enclosure, I doubt you will get better than 120Hz. Probably higher if you decide to play a little loud.
If that satisfies you, then great. If you were expecting 50Hz, then nope. Not going to happen.
The MA Alpair 5.2 is about 1.32L for 0.71 Q sealed. The 5.3 is probably similar. The F10 is about 80Hz.
I’m not dreaming, I know I won’t get that low, but something like 80Hz without EQ could be great
I have the Dayton DSA-90 in a 2l reflex enclosure, you might get away with a 1,3l with reasonable tuning. Sounds quality is pretty damn good.
The ND-105 seems to be the best bet for the bottom end, but you will need a tweeter. Le is quite high and you can't get more than about 5kHz out of it, ideally a 3k crossover. If the top end isn't important it might be enough with some massaging.
You might need the acoustic loading technique to get the bass where you want it. There's a pdf on the SB Acoustics website. The correction is somewhat approximate, but it works. I use it to extend a B3S in a very small box, and it worked fine.
You might need the acoustic loading technique to get the bass where you want it. There's a pdf on the SB Acoustics website. The correction is somewhat approximate, but it works. I use it to extend a B3S in a very small box, and it worked fine.
You want a driver with a powerful magnet for smaller volumes. I have used Scan Speak 10F/8424 in this volume, also Faital Pro 3FE22 works too. But if you do not need much bass extension (no deeper than 250Hz) almost any 3.5in full range can work. TC9FD, PS95-8, 3FE25, FR88EX, etc.
I haven’t looked at pushing the limits of really small boxes for these. I have done 2 litre, but i suspect it could be pushed down.
The A5.2/5.3/CHN50 use pretty much the same boxes.
The F10 (the midrange one used by many) fits into a 0.8 litre nScan-Ken.
http://www.planet10-hifi.com/downloads/nScan-Ken-1v0-071115.pdf
Do note that at these sizes material thickness becomes a considerable contributor to gross volume. If you can somehow construct of verty thin material (like 4mm Al) the box material becomes a significantly smaller portion of th evolume.
dave
I've done a 1.3 litre SB65WBAC25-4 as vented and also PR using a modded SB12PAC PR. Both had an Fb around 80Hz and usable bass to below 70Hz. Not much power handling though but works well with a Dayton DTA-2 with a few watts but easily bottoms out with a LM1875 amp.
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Thank you all of you guys for the insight !
I'll study each one of them and keep you posted when I move forward !
I'll study each one of them and keep you posted when I move forward !
Just as an aside, I just figured out they changed this driver..
old (current?)
https://www.parts-express.com/pedocs/specs/264-1610--tymphany-ta6fd00-04-spec-sheet.pdf
new
https://tymphany-driver-files.s3.us-west-1.amazonaws.com/files/drivers/pdfs/TA6FD00-04.Rev1.MP1%20-%20Product%20Sheet.pdf
These changes on tymphany's website happened within the last three weeks. Xmax doubled, Vas went down, Qts and Fs up.
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