5.9" max exterior diameter for two-way in 5 liter (0.17 cu.ft.) enclosure

[CZ Eddie]

Hey folks,

I'm looking for some recommendations on a two-way for a five liter (0.17 cu.ft.) enclosure.
The sticking point is a maximum of 5.9" can be used for speaker exterior diameter.
At first I thought about the Overnight Sensations, but the midrange + tweeter take up 6.6" overall exterior diameter (not talking cutout, but exterior).

I've got a 5.9" width (circular surface) to work with that it needs to fit within (custom box chosen from sentimental values).
Maybe an alternative, tiny tweeter to mate up with the midrange on the Overnight Sensations?

Goal is to have a portable mono speaker. So just one mid and tweet.
And it'll be used for Rock 'n' Roll outside on the yard or in the garage mostly.
Would like to see 60hz extension.
Not expecting massive SPL's from such a small package.
Just good off-axis response + semi full-range sound.

 

[CZ Eddie]

One other thing I was thinking of was a PAIR of the 2.5" Dayton ND65's:
Dayton Audio ND65-4 2-1/2" Aluminum Cone Full-Range Driver 4 Ohm

That comes in at just over 5" diameter, so it's good.
But I'm suspicious of 2.5" speakers and whether they can sound as loud/deep as a good single 4"?

 

[w_oswald]

Hi, Eddie:
Have you considered a full-range or coaxial speaker? That would let you use at least an honest 5" to 5-1/4" speaker. In my experience, bigger is (almost) always better - especially for R&R, and outdoors at that! One suggestion: Tannoy made a 5" Coaxial driver with ICT (Inductively Coupled Technology) 1" concentric tweeter - 100W power rating, 80-22,000 Hz. response. These were sold in a plastic cabinet as CPA5 (I"ve got a pair of these, and they're not bad), but I have seen the raw drivers come up for sale as well.
Another suggestion: Take a look at mobile (automotive, marine) speakers - the co-axial designs used to be pretty common, and I'd presume they still are. If you can't find one that works to your liking in the given enclosure volume, you could select a suitable woofer (Dayton, Faital, ...) and a small tweeter; then rig up a simple "bridge" to mount the tweeter in front of the woofer cone: DIY at its finest!
Good luck!
Wilf

 

[Lojzek]

Hey folks,
The sticking point is a maximum of 5.9" can be used for speaker
exterior diameter. At first I thought about the Overnight Sensations...

Couldn't you put the drivers closer to each other? A nice
4" midwoofer for your application could be this one.

Tymphany SDS Series 830855 4" Woofer 8 Ohm

 

[CZ Eddie]

I actually considered Tannoy but it's so hard to find quality, easy to read info on which ones have which specs, and then even harder to find them for sale.
So I never really looked very hard at them.

I'd love a coaxial speaker. Really would. But then it's hard to find one with decent low end extension in a 5L enclosure, and also tough to find them with good off-axis response which is a priority for this because the speaker will be facing upwards at all times.

"If you can't find one that works to your liking in the given enclosure volume, you could select a suitable woofer (Dayton, Faital, ...) and a small tweeter; then rig up a simple "bridge" to mount the tweeter in front of the woofer cone"

Hahah, yep this is the direction I'm looking at most right now!

Just finished modeling a few 2.5" to 4" drivers in WinISD.
The W4-1720 by Tang Band has a good rep but I'm getting really odd results in WinISD.
It seems to take massive amounts of power (high SPL's), but I just can't get the low end extension (below 100hz) it's been rep'd to have.

Anyways, thank you for replying!
I'm going to research the CPA5 in the morning.

 

[CZ Eddie]

Couldn't you put the drivers closer to each other? A nice
4" midwoofer for your application could be this one.

Tymphany SDS Series 830855 4" Woofer 8 Ohm

Ahh, yes but the typical 4" driver has about 4.5" or larger diameter.
All of the two-way's I've found so far seem to use tweeters that also have a large outside diameter. So the 4.5" + a 2" tweeter outside diameter kills me.

 

[CZ Eddie]

Btw, this will be the enclosure. There is 5.9" interior diameter available between the edge lips, which I want to stay inside of.

 

[Baldin]

WinZip sim

5l tuned to 55 Hz ... not too bad ... but it will only be good for some 94 db at 10 W .... with the low Xmax of 3 mm .... but might also be good enough

 

[Charles Darwin]

The last tiny speakers I've built had a baffle size of 15x25cm (6x10").

I used these:Faital Pro 5FE120 5" Speakers - Faital Pro 5FE120 mid-bass speaker. Faital Pro 5FE120 160 watt 5" woofer for all high quality mid-bass applications. Faital Pro 5FE120

They are almost stupidly cheap for what they deliver, I paired them with this tweeter:
https://www.madisoundspeakerstore.c...estige-19tff1-h0737-3/4-textile-dome-tweeter/

Work well together in my opinion.