Dear all,
After hours or reading and as a total beginner on speaker design, I come here to explain my project and my questions.
Few month ago I discovered the PMC twenty5 range and especially there tower speaker (23i, 24i and 26i). 2 way speakers MLTL type. Completely amazed by the design (and their price), I’m serching for a way to make an inspired version of those speakers, especially the 24i tower speakers.
https://pmc-speakers.com/products/archive/archive/twenty524
https://www.lbtechreviews.com/test/speakers/pmc-twenty5-24i
I found many informations on the web (external cabinet dimensions, cutout…) but not much about the characteristics of their speakers ( 17cm woofer g-weave cone / 19mm tweeter Sonomex dome – that’s all).
Which speakers would you recommend to use in such project ? Do you think it is reasonable to try to reuse the costless Amiga MT speakers and associated crossover (Dayton audio RS180S-8 and Perless DX25TG59-04) in such transmission line as they have very similar dimensions (but certainly not similar characteristics).
After hours or reading and as a total beginner on speaker design, I come here to explain my project and my questions.
Few month ago I discovered the PMC twenty5 range and especially there tower speaker (23i, 24i and 26i). 2 way speakers MLTL type. Completely amazed by the design (and their price), I’m serching for a way to make an inspired version of those speakers, especially the 24i tower speakers.
https://pmc-speakers.com/products/archive/archive/twenty524
https://www.lbtechreviews.com/test/speakers/pmc-twenty5-24i
I found many informations on the web (external cabinet dimensions, cutout…) but not much about the characteristics of their speakers ( 17cm woofer g-weave cone / 19mm tweeter Sonomex dome – that’s all).
Which speakers would you recommend to use in such project ? Do you think it is reasonable to try to reuse the costless Amiga MT speakers and associated crossover (Dayton audio RS180S-8 and Perless DX25TG59-04) in such transmission line as they have very similar dimensions (but certainly not similar characteristics).
Attachments
I have a PMC TL homage here:
https://www.diyaudio.com/community/...ired-tl-monitor-with-dc130a-and-dc28f.281778/
I recently developed a 2 way using the DC130A-8 with the RST28F and have a nice passive crossover design for it. It sounds wonderful. I would suggest the crossover and drivers from this speaker:
https://www.diyaudio.com/community/threads/rst28f-and-dc130a-foamcore-homage-to-ls3-5a.359176/
So basically, this crossover:
In this cabinet:
It would resemble something like this:
The bass is incredible. Very articulate and deep for a 5.25in woofer.
https://www.diyaudio.com/community/...ired-tl-monitor-with-dc130a-and-dc28f.281778/
I recently developed a 2 way using the DC130A-8 with the RST28F and have a nice passive crossover design for it. It sounds wonderful. I would suggest the crossover and drivers from this speaker:
https://www.diyaudio.com/community/threads/rst28f-and-dc130a-foamcore-homage-to-ls3-5a.359176/
So basically, this crossover:
It would resemble something like this:
The bass is incredible. Very articulate and deep for a 5.25in woofer.
IPL acoustics in the UK used to sell TL kits using Hivi drivers but I think they recently closed down. Wilmslow Audio do sell TL kits in the UK.
Thanks a lot for the links and congratulation for the project. I will read your links with lots of attentions !
I have the feeling there is not that much kit or plan available for TL speakers.
There are plenty of TL plans on DIYA - mostly in full range forum or subwoofer forum. I have not seen too many that are similar to a tapered TL for a 2 way like what PMC did though besides what I have done. I also have one for the 6.5in Purifi in a TW and an MTM tapered TL.
Largely because an MLTL does more or less the same job with in most instances a physically simpler enclosure, assuming the object is LF reinforcement; if flat impedance is the goal, then that is (to a point) another matter. Since a tapered TL is inherently mass loaded, you can achieve similar results with a high taper ratio. You may want to have a look at the Tritrix TL and its Triune TL predecessor, which are popular and quite inexpensive (the former being available in kit form from Partsexpress for those in the US):
http://speakerdesignworks.com/Tritrix_pg_1.htmlhttps://www.parts-express.com/TriTrix-MTM-TL-Speaker-Components-And-Cabinet-Kit-Pair-300-702
http://speakerdesignworks.com/Tritrix_pg_1.htmlhttps://www.parts-express.com/TriTrix-MTM-TL-Speaker-Components-And-Cabinet-Kit-Pair-300-702
