Dayton Classic 15

[victor]

I'm looking to design up a pair of towers using these woofs. I'm looking at a 3-way design, but could be any config that would work best. They will have to be VERY loud and size won't matter at all. Any suggestions on mid and tweet to match? These will be for electronic type music.. reggaeton, rap, dance etc.. I'm looking to get as much detail as possible. As of now I'm looking at the Dayton Classic 6.5" for a mid, but would it be able to keep up with the 15" woof? The 6.5" is 88dB whereas the 15" is 92.8dB. Would that cause things to be thrown off? I rather not pad/attenuate and of the drivers if possible, unless absolutely need be. The woofs will be set up in vented and the mids and tweets can be set up in separate sealed enclosures, within the main enclosures. I would like to keep cost low, but not so low that it will effect the quality I get in return. More or less, a "bang for the buck" kind of thing.

*Oh and if anyone has a suggestion on tuning frequency, I would very much appreciate. WinISD auto configured for 27.08Hz in 5.268ft^3 with two 4" vents 14.42" long (each) and showing 0.03 vent mach. Shouldn't really need anything much deeper though.

[johnbartas]

Provided Link: 15" woofer page (http://www.bartas.net/speakers/dpcf2.htm)


Hi - I've got some experience with the Dayton Classic 15 - see link - it is indeed a fairly efficient driver.

Using the Dayton 6.5 as a midrange should be OK, as long as you don't mind a speaker with strong bass. Your midrange will get a few db of baffle diffraction boost, making up for some of the the rated difference between the drivers.

WinISD tuning should be fine. I used a 4.3 foot box (stuffed) with a 4" diameter by 7" long port, per WinISD, and it sounds great. Your dual port plan will reduce air movement in the vent, but I'm not sure it will be audibly different than a single port. When you build it I hope you can try both port configurations and let us know how they compare.

Cheers,
-JB-

> I'm looking to design up a pair of towers
> using these woofs. I'm looking at a 3-way
> design, but could be any config that would
> work best. They will have to be VERY loud
> and size won't matter at all. Any
> suggestions on mid and tweet to match? These
> will be for electronic type music..
> reggaeton, rap, dance etc.. I'm looking to
> get as much detail as possible. As of now
> I'm looking at the Dayton Classic 6.5"
> for a mid, but would it be able to keep up
> with the 15" woof? The 6.5" is
> 88dB whereas the 15" is 92.8dB. Would
> that cause things to be thrown off? I rather
> not pad/attenuate and of the drivers if
> possible, unless absolutely need be. The
> woofs will be set up in vented and the mids
> and tweets can be set up in separate sealed
> enclosures, within the main enclosures. I
> would like to keep cost low, but not so low
> that it will effect the quality I get in
> return. More or less, a "bang for the
> buck" kind of thing.

> *Oh and if anyone has a suggestion on tuning
> frequency, I would very much appreciate.
> WinISD auto configured for 27.08Hz in
> 5.268ft^3 with two 4" vents 14.42"
> long (each) and showing 0.03 vent mach.
> Shouldn't really need anything much deeper
> though.

[scottc]

As of now
> I'm looking at the Dayton Classic 6.5"
> for a mid, but would it be able to keep up
> with the 15" woof? The 6.5" is
> 88dB whereas the 15" is 92.8dB. Would
> that cause things to be thrown off?
>
> First of all, the Dayton 6 1/2" classic is known for strong bass response, but its mid range is its weakness. You could use the Aluminum 6 1/2 Dayton and get much cleaner mids, but would have to deal with the break-up modes. Why not look at something like the GR-Research M-130 for very little more. It might actually come out cheaper as the crossover could be simpler using fewer components. It is an excellent mid driver and can get down low enough to cross to your 15".

[Chris Roemer]

> I'm looking to design up a pair of towers
> using these woofs. I'm looking at a 3-way
> design, but could be any config that would
> work best. They will have to be VERY loud
> and size won't matter at all. Any
> suggestions on mid and tweet to match? These
> will be for electronic type music..
> reggaeton, rap, dance etc.. I'm looking to
> get as much detail as possible. As of now
> I'm looking at the Dayton Classic 6.5"
> for a mid, but would it be able to keep up
> with the 15" woof? The 6.5" is
> 88dB whereas the 15" is 92.8dB. Would
> that cause things to be thrown off? I rather
> not pad/attenuate and of the drivers if
> possible, unless absolutely need be. The
> woofs will be set up in vented and the mids
> and tweets can be set up in separate sealed
> enclosures, within the main enclosures. I
> would like to keep cost low, but not so low
> that it will effect the quality I get in
> return. More or less, a "bang for the
> buck" kind of thing.

> *Oh and if anyone has a suggestion on tuning
> frequency, I would very much appreciate.
> WinISD auto configured for 27.08Hz in
> 5.268ft^3 with two 4" vents 14.42"
> long (each) and showing 0.03 vent mach.
> Shouldn't really need anything much deeper
> though.

Your WinISD Vb and Fb sounds good to me. I'd mount the 15" lower as opposed to higher, and probably port out the back.

I'm recommending the Dayton 5-1/4" for your mid, the -302 actually, since it's 4 ohms and has a higher SPL rating of 92dB.

I've whipped up an XO using the -325 woofer, the -302 as a mid, and the -070 silky. System is in the low 90's (SPL) and fairly flat with basically no BSC. Interested?

Chris

[victor]

> Your WinISD Vb and Fb sounds good to me. I'd
> mount the 15" lower as opposed to
> higher, and probably port out the back.

> I'm recommending the Dayton 5-1/4" for
> your mid, the -302 actually, since it's 4
> ohms and has a higher SPL rating of 92dB.

> I've whipped up an XO using the -325 woofer,
> the -302 as a mid, and the -070 silky.
> System is in the low 90's (SPL) and fairly
> flat with basically no BSC. Interested?

> Chris

Thanks Chris, sounds like a really good deal!

[Chris Roemer]

> Thanks Chris, sounds like a really good
> deal!

OK. 5.2 cf box with one 4"d x 7" long port should do. Isolate a sealed/stuffed space up at the top for both the mid and the tweeter that's about 240 cu. in. (0.14 cf). This box should be able to reach into the low 30's.

Low pass is 2nd order. Use the 9.0 mH #18 "I-core" coil and a 47uF npe shunt cap, followed by a 10 ohm resistor and 33uF npe cap Zobel.

The high pass will be a 1 ohm padding resistor, then a 12uF poly cap, then a #20 0.40mH shunt coil, and finally the -070 silk dome hooked up reverse polarity.

The mid has 5 components and hooks up to the -302 also with reverse polarity.
Start with a 0.5 ohm padding resistor, then a 100uF cap (made from two 50uF caps in parallel, one an npe, and the other a poly), then a #20 3.0 mH shunt coil.
Next comes a #20 1.0mH series coil, a 33uF npe shunt cap, and lastly the mid driver.

This looks to be about 89dB +/- 1.5dB, and is a nominal 6 ohm load except the midrange does drop down to 4 ohms. Not sure if you'll need a 4 ohm capable amp or not.

Let me know if you need any other help.

Chris