Great work on those! Someone already posted a link to your thread here.
I wanted to ask you: What did you do with the Wavecor woofer you chose?
Yup, it's an 8" woofer thread
I think it would be tricky to make a smooth and sleek looking tower speaker with 15" woofers and a narrow baffle around the midrange/tweeter/coax, which IMO is needed to have a smooth and precise stereo image. I find wide baffle speakers to have a less precise image, because the much bigger baffle contribute too much with all sorts of "new" sounds, rather than just the sound from the drivers alone.
Maybe the huge speaker from Dunlavy, where the entire front is heavily covered in felt:
https://www.stereophile.com/floorloudspeakers/99dun4/index.html
Nevertheless, I do like big woofers, I just need to build the best I can with the bag of compromises that I've already chosen
@digitalthor Yes ! But to make a lonnnng story short see Linkwitz LX521 or Nao note II RS or BW nautilus... Best results in imaging, precision of bass. Just know what, why you are doing things
But to make a lonnnng story short see Linkwitz LX521 or Nao note II RS or BW nautilus... Best results in imaging, precision of bass. Just know what, why you are doing things I only tried the L22 and have the DXT. But I believe they make pretty good drivers all over.
The RNY seem well ventilated, light coned, high efficiency and over-all a good driver - for around the price of Wavecor or SS classic.
Examples of use:
http://www.troelsgravesen.dk/SEAS-3-Way-Classic-mkII.htm
https://www.diyaudio.com/community/...ay-with-8-inch-midbass-mini-waveguide.381537/
Measurements at HIFI compass:
https://hificompass.com/en/speakers/measurements/seas/seas-ca22rny-h1471
since this thread started in 2015, to keep it going here's some inexpensive (Cheap) entries:
https://www.newark.com/multicomp-pro/55-2960/woofer-8-die-cast-professional/dp/13T7692
(GASP MCM)
MCM 55-2960 8"
from Mike Chua
https://ampslab-spk.com/2018/04/27/mcm-55-2960/
https://ampslab-spk.com/2018/05/26/mcm-55-2960-fountek-fe85/
https://ampslab-spk.com/2018/05/30/mcm-55-2960-pyle-pds442/
looks like a built in BBC Dip
Mid-Bass (80Hz-125Hz) – Dynamic. Detail. Tight. No Bloom.
Low Bass (40Hz) – Audible. No Bloom.
Vocals (125Hz upwards) – Sounds Flat. No audible peaks.
Bass and Vocals Balance – Good. Bass doesn’t over-power voices.
Suitable for PA and even HiFi. Fantastic value for $15.21.
Updated on Dec 8, 2023"
if running fullrange, crossover ideas:
@ 4500 hz (adjust - L-pad etc)
https://ampslab.com/oriole.htm
https://techtalk.parts-express.com/forum/speaker-project-gallery/67808-low-cost-3-line-array/page8
https://projectgallery.parts-express.com/pro-audio/the-vintages/
Audiopur RT7040 Planar tweeter
https://theaudiocrafts.com/soundtouch-ribbon-tweeter-rbnt1-pair
Russia post #1 and #19 crossover 4500 hz
https://forum.vegalab.ru/showthread.php?t=79335
Don HighEnd
https://www.donhighend.de/?page_id=8442
Maybelle Audio-Vietnam
https://linhkienloadai-vn.translate...uto&_x_tr_tl=en&_x_tr_hl=en-US&_x_tr_pto=wapp
Audiopur RT7040
post#7 sound clip
https://audiokarma.org/forums/index...-a-new-speaker-and-starting-the-build.832570/
https://player.vimeo.com/video/226746718
------------------------------------------
https://www.parts-express.com/GRS-8SW-4-8-Poly-Cone-Subwoofer-4-Ohm-292-480?quantity=1
https://techtalk.parts-express.com/forum/tech-talk-forum/1489532-le-petite-sarcophage-r2
from post #10
08-17-2022, 05:45 AM
It's no Revelator, but I wouldn't hesitate to use it to the 1K I used here. Pair it with something like the Beast Mode tweeter in a 6 or 8 inch waveguide and it would make a cool, cheap large 2-way.
from post # 12
08-18-2022, 09:47 AM
DrewsBrews
Attached are in-box measurement of the woofer. One is distortion the other is gated. As I said, I wouldn't be afraid to use it all the way to 1K. It might even do well as an old school 2-way using the top end roll off as the crossover.
Sorry for potato quality pictures but its all I have (I think).
---
MTG Designs
https://www.mtg-designs.com/diy-speaker-plans/flex-8
https://www.mtg-designs.com/diy-speaker-plans/flex-8/flex-8-grs
"I am glad I tested all the woofers I had as it resulted in one making the cut that I didn't even consider initially, the GRS 8SW-4. The 8SW-4 has smooth frequency response up past 2 kHz which was totally unexpected since it is labeled as a subwoofer. Funny how it's actually better suited for 2-way designs and has a smoother frequency response then any of GRS's other 8" woofers."
======
Has anyone heard or used these woofers?
https://www.newark.com/multicomp-pro/55-2960/woofer-8-die-cast-professional/dp/13T7692
(GASP MCM)
MCM 55-2960 8"
from Mike Chua
https://ampslab-spk.com/2018/04/27/mcm-55-2960/
https://ampslab-spk.com/2018/05/26/mcm-55-2960-fountek-fe85/
https://ampslab-spk.com/2018/05/30/mcm-55-2960-pyle-pds442/
looks like a built in BBC Dip
"MCM 55-2960 RAW Frequency Response
Ported Box = 25 liters. Baffle Width = 13.5″
May 23, 2018 – Preliminary Listening Test in 25 liters Ported Box. (Port Dia=2″. Length=6.50″)
No crossover is used. Audition with woofer in RAW state.Mid-Bass (80Hz-125Hz) – Dynamic. Detail. Tight. No Bloom.
Low Bass (40Hz) – Audible. No Bloom.
Vocals (125Hz upwards) – Sounds Flat. No audible peaks.
Bass and Vocals Balance – Good. Bass doesn’t over-power voices.
Conclusion
Despite the widely different Thiele & Small Parameters, the MCM 55-2960 sounds perfectly fine.Suitable for PA and even HiFi. Fantastic value for $15.21.
Updated on Dec 8, 2023"
if running fullrange, crossover ideas:
@ 4500 hz (adjust - L-pad etc)
https://ampslab.com/oriole.htm
https://techtalk.parts-express.com/forum/speaker-project-gallery/67808-low-cost-3-line-array/page8
https://projectgallery.parts-express.com/pro-audio/the-vintages/
Audiopur RT7040 Planar tweeter
https://theaudiocrafts.com/soundtouch-ribbon-tweeter-rbnt1-pair
Russia post #1 and #19 crossover 4500 hz
https://forum.vegalab.ru/showthread.php?t=79335
Don HighEnd
https://www.donhighend.de/?page_id=8442
Maybelle Audio-Vietnam
https://linhkienloadai-vn.translate...uto&_x_tr_tl=en&_x_tr_hl=en-US&_x_tr_pto=wapp
Audiopur RT7040
post#7 sound clip
https://audiokarma.org/forums/index...-a-new-speaker-and-starting-the-build.832570/
https://player.vimeo.com/video/226746718
------------------------------------------
GRS 8SW-4, 8" Poly Cone Subwoofer- 4 ohm
https://www.parts-express.com/GRS-8SW-4-8-Poly-Cone-Subwoofer-4-Ohm-292-480?quantity=1
https://techtalk.parts-express.com/forum/tech-talk-forum/1489532-le-petite-sarcophage-r2
from post #10
08-17-2022, 05:45 AM
It's no Revelator, but I wouldn't hesitate to use it to the 1K I used here. Pair it with something like the Beast Mode tweeter in a 6 or 8 inch waveguide and it would make a cool, cheap large 2-way.
from post # 12
08-18-2022, 09:47 AM
DrewsBrews
Attached are in-box measurement of the woofer. One is distortion the other is gated. As I said, I wouldn't be afraid to use it all the way to 1K. It might even do well as an old school 2-way using the top end roll off as the crossover.
Sorry for potato quality pictures but its all I have (I think).
---
MTG Designs
https://www.mtg-designs.com/diy-speaker-plans/flex-8
https://www.mtg-designs.com/diy-speaker-plans/flex-8/flex-8-grs
"I am glad I tested all the woofers I had as it resulted in one making the cut that I didn't even consider initially, the GRS 8SW-4. The 8SW-4 has smooth frequency response up past 2 kHz which was totally unexpected since it is labeled as a subwoofer. Funny how it's actually better suited for 2-way designs and has a smoother frequency response then any of GRS's other 8" woofers."
======
Has anyone heard or used these woofers?
Last edited:
Which brand was it?
I got a pair when they were deeply discounted, but now they cost as much as SB and others
post #288 more MCM 55-2960
from MAC
https://diy.midwestaudio.club/discussion/comment/46720#Comment_46720
hifiside
November 2023
Multicomp 8” 55-2960
from MAC
https://diy.midwestaudio.club/discussion/comment/46720#Comment_46720
hifiside
November 2023
Multicomp 8” 55-2960