I find that expensive (one could get a set of FE127eN for that price), and it looks like one would want to XO at 3 kHz, right in the area where the ear is most critical (ie worst place to put an XO)
dave
That one looks better. One could consider XOing anywhere 5-10k. And the price is much more in line with this project.
dave
I still have both a pair of the P13 midbass & the version better suited to midrange duty. Be nice if that driver has been resurrected.
I could check with my rep and see what the situation is.
dave
Always a bit tricky to compare 2 charts with different "sizes"
Here are the SEAS data (red) vrs the Madisound straight up and then the same with the red level shifted.
dave
Attachments
Theres many ways to do it
And I would also be in doubt how to choose design and drivers
Expencive drivers, probably not
Small cheap ones, nah
3way is exstremely tricky
2ways too boring
Theres one I would consider interesting, and affordable
2.5way with Eminence Beta-8A and Bohlender Graebener Neo3W
Sensitivity would be above 90db
Maybe also consider active side mounted woofer, AE, Beyma, Dayton, Goldwood, whatever makes you happy
And I would also be in doubt how to choose design and drivers
Expencive drivers, probably not
Small cheap ones, nah
3way is exstremely tricky
2ways too boring
Theres one I would consider interesting, and affordable
2.5way with Eminence Beta-8A and Bohlender Graebener Neo3W
Sensitivity would be above 90db
Maybe also consider active side mounted woofer, AE, Beyma, Dayton, Goldwood, whatever makes you happy
One of my reasons for preferring 3-way speakers is that using a dedicated woofer frees up the midrange to do midrange duty only, although Rabbitz statement that a 2.5 way using a low Fs woofer rolled off very early makes good sense; it still allows a lot of the bass to go thru the mid driver.
One of my reasons for starting the thread was to increase my own knowledge before starting my next 3-ways, although I am lucky enough to have already bought the P-13s for that project.
#3-ways are hard, I understand that; but I have always thought that a well implemented 3-way just sounded better ( until you can afford triple-digit drivers anyway ) and so many people have been looking for a balanced sound kit or recipe for a 3-way speaker
With all the experience and expertise here I'm positive we will arrive at something suitable in a reasonable time, and hopefully the drivers we choose will stay around for a year or two after finalizing the XO
One of my reasons for starting the thread was to increase my own knowledge before starting my next 3-ways, although I am lucky enough to have already bought the P-13s for that project.
#3-ways are hard, I understand that; but I have always thought that a well implemented 3-way just sounded better ( until you can afford triple-digit drivers anyway ) and so many people have been looking for a balanced sound kit or recipe for a 3-way speaker
With all the experience and expertise here I'm positive we will arrive at something suitable in a reasonable time, and hopefully the drivers we choose will stay around for a year or two after finalizing the XO
I'm in the Tymphany site and see that the PL11 and D26NC-55-06 are back in the product line-up BUT as OEM only, that sux as this would (IMHO ) have been a good starting point for the midrange and tweeter, reasonable dispersion and close C2C distance, and the P13 isn't part of the line-up, where did Madisound get their stocks from??
Speakerbits in Melbourne still has the P13 on their website too.
Both the PL11 and the P13 are well documented, we could work around these well known drivers, 1000 tweeters is a heck of a lot but 500 pairs of speakers world wide?? I really think that a kit with us as the supplier is the only way to get the drivers needed at a reasonable price, and yes I know that distribution is going to be hard, we need an established 3rd party to get interested I think
links
D26NC-55-06 | Tymphany
PL11WH09-08 | Tymphany
PL14WJ09-08 | Tymphany
P13WH-00-08 | Tymphany
Speakerbits in Melbourne still has the P13 on their website too.
Both the PL11 and the P13 are well documented, we could work around these well known drivers, 1000 tweeters is a heck of a lot but 500 pairs of speakers world wide?? I really think that a kit with us as the supplier is the only way to get the drivers needed at a reasonable price, and yes I know that distribution is going to be hard, we need an established 3rd party to get interested I think
links
D26NC-55-06 | Tymphany
PL11WH09-08 | Tymphany
PL14WJ09-08 | Tymphany
P13WH-00-08 | Tymphany
I would suggest a Seas 27TDFC for tweeter, Seas MCA15RCY midrange and Seas CA26RFX woofer.
The woofer should allow enough for BSC, if my WinISD sim is correct it show about 92dB at 200Hz in a 100L ported box, tuned for 30Hz. 2.3L sealed for midrange.
XO at about 300Hz to make BSC easier and 2Khz to the tweeter.
André
The woofer should allow enough for BSC, if my WinISD sim is correct it show about 92dB at 200Hz in a 100L ported box, tuned for 30Hz. 2.3L sealed for midrange.
XO at about 300Hz to make BSC easier and 2Khz to the tweeter.
André
Nice complement of drivers Andre! I concur that quality drivers are worth their weight in gold. Seas are tough to bet for any speaker project.
Hi Moondog.
I thought I better let you know what prices are:
The SEAS 27TDFC: $46AU each.
The SEAS MCA15RCY: $71AU each
The SEAS CA26RFX: $155 AU each.
These exchange rates were from XE - The World's Favorite Currency and Foreign Exchange Site, but they wont vary to much from your banks.
Looks like a good speaker though. The seas 27tdfc is one of my favourites. For the price, you cant go wrong.
Hi Rabbitz, yes I understood that, sorry I should have qualified (or quoted you) when I posted for others that hadn't read your original post
On the tonal differences between woofers, to that I can most certainly attest. When I changed the original 12" Plessey driver in my three ways to Vifa M26WR-09-08's (obviously with a change of baffle and appropriate tuning) the improvement was dramatic, and not just in the tonal quality.
If they were still making them I'd recommend the W26's although they would probably be outside of the budget constraints anyway.
Tony.
This driver selection is very similar to what I came up with for my 3 way design except I'm using two 6.5" drivers that are based off the Adire Extremis rather then the the single 10" woofer. I'm still trying to get the time to finalize the design and finish the drawings so that I can make up a cut sheet to take to the place that will cut the wood for me.
I was starting to wonder though if a 5" midrange in use with two 6.5" woofers was a little overkill.
Also consider the 27TFFC, it's a bit cheaper and also seems to be very popular as well, I've actually seen more designs using the TFFC then the TDFC which when you consider the very small price difference, it tends to make me think perhaps the TFFC is a little better.
Heck it is all conjecture and hot air at this stage, I only posted the subject a few days ago.
I am sure that some-one familiar with the drivers will pitch in soon though.