MIDTOP 15" + 8" + 1" 3 way

My ideashas been buit.

Ill upload more pictures or even open another thread if anybody interested!

15 inches is around 56 cm long, 8 inches I guess is around 17 cm

Have you considered a 15" plus 10" plus 1"? There's a fair few commercial designs that use this configuration.

Logic System XTA EAW MC2 Robe Anytronics Futurelight Trilite Tas and a wife....

I needed the smallest comb.horn possible to fit into the 15 inches horn. It sound good. I had some unexpected results in low part of the 8" speaker reproduction (lot of strange things were happening in 300 -800 hz, dips and peaks around +-5 6 dB.) and i had to higher a lot the 15 inches cutoff freq. The 8 inches i'm using now is almost not fitting in to the phase.p. so i cant imagine a 10 " in any way fitting this config. I was considering to try another model (such as 6ND410 from 18sound) to check if it would have a better coupuling with the throat of that short f.l.horn, but i will see, for now it's ok as it is. Ill' test the copule next days.

Not Smoothed response:

Edited by LeruSound - 31 August 2017 at 1:18am

Yes nema vented. I tryied for fun and I did a optional back cover with vented port, but then I removed as I didnt need in this case.

Man i really can't see the design you are posting, guess the image is corrupted.

EDIT:
I got what design you are talkin' about. Lot of ppl is giving me that chance as an advice. I really can't uderstand. I saw the design and i followed the developement on the forum. I'ts a good idea, it squeezed out the maximum from two mainfolded 12" and a 2" driver, making possible to cross them.

SO: with a good design and a good part of EQing you get the result, in a very compact size. It's a smart and clever design, but it doesnt do the icecream for me & for what is my purpose.

i admit it's a very good design, but maybe is not the solution everytime..
I will try, is getting that much popular that a close friend is building now, and for sure he will need me to help him in make them sound so, i will try!

Personally i wouldn't choose that design for:

- I dont like that much how it looks (ok, but deeply inside you also know it's important :)

- I have the idea the two 12" are having difficults reproducing freq. around 1 kHz naturally, because that folds and because of parallel walls in horn expansion. But as always it could easily be well sounding.
- I would avoid to use CDs with that low xover, or at least i would avoid a beginner to do so, if it's not a very efficent device, energy could be very unbalanced in music below some tresh. so it's easier to blow up.
- you need to be accurate in throat adapting, so easy work outside but a little delicate inside.

All the rest of that design is a big big up, very small and easy to travel, and it looks everything is extremely balanced, few components with maximum result.

Edited by LeruSound - 09 September 2017 at 11:14am

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
darkmatter Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 26 February 2005 Location: LDN Status: Offline Points: 2425	Post Options Post Reply Quote darkmatter Report Post Thanks(0) Quote Reply Posted: 23 May 2017 at 9:16am
	If you're in the UK drop me a message. I have 2 x B&C 15NW76, 2 x DE250 and 2 x 8PE21 that are in as new condition and I'm unlikely to be using any time soon as I've damaged my back.

LeruSound Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 27 August 2015 Status: Offline Points: 171	Post Options Post Reply Quote LeruSound Report Post Thanks(0) Quote Reply Posted: 17 July 2017 at 1:40pm
	My ideashas been buit. Ill upload more pictures or even open another thread if anybody interested!

gen0me Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 20 February 2016 Location: UK Status: Offline Points: 999	Post Options Post Reply Quote gen0me Report Post Thanks(0) Quote Reply Posted: 17 July 2017 at 1:51pm
	Nice! How do you cut it? How long are those 15" horn and 8"?

LeruSound Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 27 August 2015 Status: Offline Points: 171	Post Options Post Reply Quote LeruSound Report Post Thanks(0) Quote Reply Posted: 17 July 2017 at 1:54pm
	15 inches is around 56 cm long, 8 inches I guess is around 17 cm

VECTORDJ Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 11 June 2006 Location: United States Status: Offline Points: 515	Post Options Post Reply Quote VECTORDJ Report Post Thanks(0) Quote Reply Posted: 17 July 2017 at 3:11pm
	Awesome! Where did you get the mid/high horn?? VECTORSONICS

dmx256 Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 17 January 2010 Location: Manchester Status: Offline Points: 475	Post Options Post Reply Quote dmx256 Report Post Thanks(0) Quote Reply Posted: 30 August 2017 at 12:39pm
	Have you considered a 15" plus 10" plus 1"? There's a fair few commercial designs that use this configuration.
	Logic System XTA EAW MC2 Robe Anytronics Futurelight Trilite Tas and a wife....

bob4 Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 29 February 2004 Location: Finland/Germany Status: Offline Points: 1843	Post Options Post Reply Quote bob4 Report Post Thanks(0) Quote Reply Posted: 30 August 2017 at 1:46pm
	wow, nice build, didn't notice the pictures until now

LeruSound Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 27 August 2015 Status: Offline Points: 171	Post Options Post Reply Quote LeruSound Report Post Thanks(0) Quote Reply Posted: 31 August 2017 at 1:05am
	I needed the smallest comb.horn possible to fit into the 15 inches horn. It sound good. I had some unexpected results in low part of the 8" speaker reproduction (lot of strange things were happening in 300 -800 hz, dips and peaks around +-5 6 dB.) and i had to higher a lot the 15 inches cutoff freq. The 8 inches i'm using now is almost not fitting in to the phase.p. so i cant imagine a 10 " in any way fitting this config. I was considering to try another model (such as 6ND410 from 18sound) to check if it would have a better coupuling with the throat of that short f.l.horn, but i will see, for now it's ok as it is. Ill' test the copule next days. Not Smoothed response: Edited by LeruSound - 31 August 2017 at 1:18am

Hemisphere Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 21 April 2008 Status: Offline Points: 2272	Post Options Post Reply Quote Hemisphere Report Post Thanks(0) Quote Reply Posted: 31 August 2017 at 1:10am
	Edit: Just seen updated post with pics/plots Edited by Hemisphere - 31 August 2017 at 1:15am
	Phase 1: Post on Speakerplans Phase 2: ????? Phase 3: Profit!

LeruSound Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 27 August 2015 Status: Offline Points: 171	Post Options Post Reply Quote LeruSound Report Post Thanks(0) Quote Reply Posted: 31 August 2017 at 1:24am
	Yes nema vented. I tryied for fun and I did a optional back cover with vented port, but then I removed as I didnt need in this case.

CHAMPION Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 30 September 2004 Location: United Kingdom Status: Offline Points: 3667	Post Options Post Reply Quote CHAMPION Report Post Thanks(0) Quote Reply Posted: 08 September 2017 at 1:12am
	Try this design..
	Sticks n Stones

LeruSound Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 27 August 2015 Status: Offline Points: 171	Post Options Post Reply Quote LeruSound Report Post Thanks(0) Quote Reply Posted: 09 September 2017 at 10:46am
	Man i really can't see the design you are posting, guess the image is corrupted. EDIT: I got what design you are talkin' about. Lot of ppl is giving me that chance as an advice. I really can't uderstand. I saw the design and i followed the developement on the forum. I'ts a good idea, it squeezed out the maximum from two mainfolded 12" and a 2" driver, making possible to cross them. SO: with a good design and a good part of EQing you get the result, in a very compact size. It's a smart and clever design, but it doesnt do the icecream for me & for what is my purpose. i admit it's a very good design, but maybe is not the solution everytime.. I will try, is getting that much popular that a close friend is building now, and for sure he will need me to help him in make them sound so, i will try! Personally i wouldn't choose that design for: - I dont like that much how it looks (ok, but deeply inside you also know it's important :) - I have the idea the two 12" are having difficults reproducing freq. around 1 kHz naturally, because that folds and because of parallel walls in horn expansion. But as always it could easily be well sounding. - I would avoid to use CDs with that low xover, or at least i would avoid a beginner to do so, if it's not a very efficent device, energy could be very unbalanced in music below some tresh. so it's easier to blow up. - you need to be accurate in throat adapting, so easy work outside but a little delicate inside. All the rest of that design is a big big up, very small and easy to travel, and it looks everything is extremely balanced, few components with maximum result. Edited by LeruSound - 09 September 2017 at 11:14am