These are described as limited edition 5.5" woofer and 1" dome tweeter with titanium components. I don't know enough about specs to tell if they look good but it would be nice to buy the set knowing they are meant to be used together.
https://www.madisoundspeakerstore.com/approx-5-woofers/scanspeak-15w/4524t02-limited-edition-5-fiberglass-cone-woofer/
https://www.madisoundspeakerstore.com/soft-dome-tweeters-scanspeak/scanspeak-limited-edition-d2604/832002-1-textile-dome-tweeter/
I would like to build something with Scan Speak or Seas drivers and would be tempted to try these if there was a proven or recommended bass reflex or MLTL design.
If anyone has any recommendations please let me know! Thank you,
Rick
https://www.madisoundspeakerstore.com/approx-5-woofers/scanspeak-15w/4524t02-limited-edition-5-fiberglass-cone-woofer/
https://www.madisoundspeakerstore.com/soft-dome-tweeters-scanspeak/scanspeak-limited-edition-d2604/832002-1-textile-dome-tweeter/
I would like to build something with Scan Speak or Seas drivers and would be tempted to try these if there was a proven or recommended bass reflex or MLTL design.
If anyone has any recommendations please let me know! Thank you,
Rick
Hi Rick,
If I may suggest, it will be better if you set your goals first (what type of music, how loud etc) within the environment (e.g. room size) and then look for suitable designs. Getting the components first (and more so because they were on a "bundle offer") and then trying to figure out the design might not be the best way forward.
If I may suggest, it will be better if you set your goals first (what type of music, how loud etc) within the environment (e.g. room size) and then look for suitable designs. Getting the components first (and more so because they were on a "bundle offer") and then trying to figure out the design might not be the best way forward.
Well I have to say the recommended cabinet sizes and f3 are really impressive! 🙂 I'm used to SS woofers having great bass but needing a lot of cabinet volume to get there. That's a really nice find.
Sad it's a limited edition piece. 🙁 Means if I design a kit for it now chances of others being able to make them years from now are small.
Also note the impedance dip of the woofer around 100 Hz. My experience with this type of response is the drivers are "discerning" of amplifier stiffness. AKA not very amp friendly.
But I can totally see the attractiveness of the kit. 🙂 I'm tempted myself. They'd make great surrounds or desktop monitors.
Sad it's a limited edition piece. 🙁 Means if I design a kit for it now chances of others being able to make them years from now are small.
Also note the impedance dip of the woofer around 100 Hz. My experience with this type of response is the drivers are "discerning" of amplifier stiffness. AKA not very amp friendly.
But I can totally see the attractiveness of the kit. 🙂 I'm tempted myself. They'd make great surrounds or desktop monitors.
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Rick,
if this will be your first design, let's drop it. If you aren't able to design a good crossover the chance that you can find another design with the same drivers is pretty minimal. And the resell value will be low.
Having said that, a design should be easily made, but IMHO the drivers don't appear to have a good value to cost ratio. The tweeter seems a higher cost DX tweeter with an alu faceplate, and the woofer is not fish nor meat (as we say here in Italy), because is not sensitive enough for a 4 Ohm driver, doesn't go low enough for a 5.5" driver, and cost significantly more than the pretty equivalent Discovery drivers. On the good part there is the minimal box needs.
Ralf
if this will be your first design, let's drop it. If you aren't able to design a good crossover the chance that you can find another design with the same drivers is pretty minimal. And the resell value will be low.
Having said that, a design should be easily made, but IMHO the drivers don't appear to have a good value to cost ratio. The tweeter seems a higher cost DX tweeter with an alu faceplate, and the woofer is not fish nor meat (as we say here in Italy), because is not sensitive enough for a 4 Ohm driver, doesn't go low enough for a 5.5" driver, and cost significantly more than the pretty equivalent Discovery drivers. On the good part there is the minimal box needs.
Ralf
A 4ohm, 5.5" driver that would go deeper and with higher sensitivity would require a larger box...it's always give and take.
giralfino
How can you not get excited by titanium? You have no soul. 😀 😀 😀
Also, while I like the SS cut paper drivers, I'm also quite fond of woven fiberglass. I don't see that every day in a SS driver.
Um, to me the combination of 5.5" driver, f3 and small cabinet is quite rare. If you know of other drivers this capable please post examples.
Thank you,
Erik
How can you not get excited by titanium? You have no soul. 😀 😀 😀
Also, while I like the SS cut paper drivers, I'm also quite fond of woven fiberglass. I don't see that every day in a SS driver.
Um, to me the combination of 5.5" driver, f3 and small cabinet is quite rare. If you know of other drivers this capable please post examples.
Thank you,
Erik
Madisound's estimate of an f3 of 56Hz in a 0.25 ported box seems good to me. I was just hoping there might be an MLTL or other design for these drivers that might go a bit lower. Otherwise, I will likely build a pair of the Jordan Eikona 2 MLTL graciously designed by Jim Griffin.
http://www.diyaudio.com/forums/full-range/265994-jordan-eikona-2-designs.html
Thank for the replies.
http://www.diyaudio.com/forums/full-range/265994-jordan-eikona-2-designs.html
Thank for the replies.
Yes, the titanium and fiberglass got me pretty excited as well, I had to go for a brisk walk in the cold. 😀
Rick,
If you want to learn about crossover design, this would actually be a pretty good starter project. I have a similar one built which you can use as sort of a reference.
You would need to measure your drivers though. If you are willing to do that, then I think the crossover design wouldn't be too difficult.
Take a look at these two links:
https://speakermakersjourney.blogspot.com/2016/02/crossover-basics.html
https://speakermakersjourney.blogspot.com/2016/02/the-lm-1-bookshelf-version.html
The second link refers you back here, where you can find simulation files with all the measurements so you can try your hand at crossover design before buying anything. 😉
Best,
Erik
If you want to learn about crossover design, this would actually be a pretty good starter project. I have a similar one built which you can use as sort of a reference.
You would need to measure your drivers though. If you are willing to do that, then I think the crossover design wouldn't be too difficult.
Take a look at these two links:
https://speakermakersjourney.blogspot.com/2016/02/crossover-basics.html
https://speakermakersjourney.blogspot.com/2016/02/the-lm-1-bookshelf-version.html
The second link refers you back here, where you can find simulation files with all the measurements so you can try your hand at crossover design before buying anything. 😉
Best,
Erik
One last thing. You might want to surface mount the woofer, a-la Dynaudio or a la Me. 🙂
The 0.2 - 0.3" difference may improve your phase matching.
Best,
Erik
The 0.2 - 0.3" difference may improve your phase matching.
Best,
Erik
Thanks for the links Erik. I was thinking about paying Madisound for a LEAP crossover design for these drivers. Unfortunately, the MLTL cabinet design is beyond me.
Erik - On second thought, I just looked briefly at the links you provided and will look further into designing a crossover. Thank you!
I was having a gander at these a day or two ago actually. Not without interest. Purely going by the general appearance, it looks to me as if the tweeter has been created by combining the dome assembly of the 8300 to the 6600 faceplate with the 8320 motor assembly (albeit with the titanium VC former they mention). The midbass -more of a struggle in terms of getting a great deal of LF out of it, but it'll do in compact boxes, or a modest QW.
Rick,
An alternative tweeter may be the Vifa XT25 dual magnet version. Significantly cheaper, even lower f3 but lacks the oil-can resonance.
https://www.madisoundspeakerstore.c...4-vifa-ring-dome-tweeter-double-magnet-4-ohm/
I have these in my current desktops. They are severely under-priced/under-rated drivers. The swap will come out to almost the same price.
Best,
Erik
An alternative tweeter may be the Vifa XT25 dual magnet version. Significantly cheaper, even lower f3 but lacks the oil-can resonance.
https://www.madisoundspeakerstore.c...4-vifa-ring-dome-tweeter-double-magnet-4-ohm/
I have these in my current desktops. They are severely under-priced/under-rated drivers. The swap will come out to almost the same price.
Best,
Erik
Misunderstaning the impact of Qms on loudspeaker performance. Funny, a low Qms value is negative, and even much lower Qes which changes the Qts in a much more way isn't negative.
Are you are referring to the different sized spade lugs? I have seen this before and assume it is deliberate.
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