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Multi-Way Conventional loudspeakers with crossovers

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Old 13th June 2017, 12:11 PM   #1
HatlessChimp is offline HatlessChimp
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Join Date: Feb 2016
Default Home Theater Speakers

Hi DIYAudio Friends,

Im new to the forum and always wanted to build my own speakers and I finally caved in when I installed some Focal speakers in a friends car and loved how they sound and made me want to build some speakers for my media room. I done some brief research and found that ScanSpeak do some good Tweeters and after going to their website and looking around the Hifi shops in ton I noticed that they are used in a lot of speakers from different companys, I even read somewhere that some head of speaker design said that there is no point of competeing with ScanSpeak because they already make a great Tweeter for decent price only if they were chasing something outside the norm would they design and make their own Tweeter. So that was good enough for me to jump on ScanSpeak. I have always loved the black poly drivers from Peerless and seen a few people use them and by looking at the graphs even with my limited knowledge it looks like the 5.25" & 6.5" are pretty decent and around the size I would want.


I have a Yamaha 1060 AVR I bought from a friend and I want to make a full Atmos 5.1.2 setup. I want to make the LCR all the same and as thin in depth as possible so I can one day fit them behind a Transparent screen. I want to make 2 surrounds and 2 ceiling speakers. I don't want to hide the speakers in the ceiling but cutting holes I love the Atmos Cinema Theater speaker look. It should go well with the white ceiling HAHA. The missus will love them ;-)
The other thing is I want to try and get away with out having to run a separate amp as it could get costly.

In drunken daze I bought some items last night. At the moment I'm limited to funds so just bought a few different things to play with and try and work through it then buy the gear once I have a working plan.

Items I have so far

1x Peerless 6.5" HDS Poly 830874
https://www.madisoundspeakerstore.co...y-cone-woofer/

2x Peerless 5.25 PPB Poly 830860
https://www.madisoundspeakerstore.co...y-cone-woofer/

2x ScanSpeak R2604-833000
https://www.madisoundspeakerstore.co...ring-radiator/

2x 2" dia Reflex Port
1x 2.5" dia Reflex Port

Have a sheet of 18mm MDF already at home and two routers, circular saw drill and clamps etc. I also have a Umik-1 I can use if needed.

Was thinking of trying a MTM with 2x 5.25" Woofers + R2604-833000 Tweeter

For surrounds 1x 6.5" woofer + R2604-833000

I haven't ordered any crossover bits yet and this will be my first crossover that I have made so looking forward to it and hopefully I can get some speakers working and duplicate it for more speakers to fill out my room finally.
Any help would be great. I know there is still a lot to do and I'm busy reading and watching YT videos to gain more knowledge as I go but just thought I should post this so people can help keep me on track and so I can share my progress. I hope this all made sense, Im a little tired and about to go to sleep, Thanks lads hope to hear from you. Cheers
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Old 13th June 2017, 04:35 PM   #2
18Hurts is offline 18Hurts  United States
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Here is a good thread with links to videos to help you design crossovers, hope that helps and good luck.

How to use Passive Crossover Designer by Jeff Bagby - AVS Forum | Home Theater Discussions And Reviews
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Old 13th June 2017, 04:42 PM   #3
Keruskerfuerst is offline Keruskerfuerst  Germany
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Location: Germany
First you have to set the crossover frequencies.
Then use a crossover program like LSPCAD to optimize the crossover.
Then the crossover must be build in this way to minimize the crosstalk.
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Old 15th June 2017, 10:49 AM   #4
HatlessChimp is offline HatlessChimp
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Join Date: Feb 2016
Thanks guy just going through all you said now, thanks. The Drivers arrived today yay!
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Old 12th September 2017, 10:27 AM   #5
Mrcloc is offline Mrcloc  South Africa
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Whatever happened to these crisp new drivers?
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Old 12th September 2017, 10:42 AM   #6
HatlessChimp is offline HatlessChimp
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Join Date: Feb 2016
Quote:
Originally Posted by Mrcloc View Post
Whatever happened to these crisp new drivers?
In some cabinets. Using them as surrounds. I used dayton caps, ceramic resistors, air core coils in a pretty stock standard LR2 crossover. 40mm port. I have a pair of 830860 aswell that I want to put into a desktop mono mtm bluetooth speaker. Im eyeing up a TC9 build for a smaller bluetooth speaker too but when I look into it I keep getting stuck with going a 2.1 amp board or a 2.0 board with a simple crossover with a woofer that integrates with the TC9. But thats all for well down the track.
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Old 12th September 2017, 11:15 AM   #7
Mrcloc is offline Mrcloc  South Africa
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Truly sounds like a HT thread. I believe in stereo, almost on a cult level.

Why MTM? For one, it's not easy to design MTM, and for another, those tweeters you posted here probably won't be ideal for MTM.
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Old 12th September 2017, 11:33 AM   #8
HatlessChimp is offline HatlessChimp
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Join Date: Feb 2016
Quote:
Originally Posted by Mrcloc View Post
Truly sounds like a HT thread. I believe in stereo, almost on a cult level.

Why MTM? For one, it's not easy to design MTM, and for another, those tweeters you posted here probably won't be ideal for MTM.
I love all sound systems except them little bose speakers and them dr dre pills lol.

The TC9 are bang from buck from what Ive read around the place. Its for a small system for at work. I also want to try nut out a MTM with the same 830874 & 833000 combo but i have to look more into the 4ohm vs 8ohm for the mids.

That ring radiator is pretty damn good for its price. I rate it very highly in my limited diy speaker career. Im looking at getting the peerless xt25gb and comparing they look the same and basically same company but think one is made in china and the other is denmark. For half the price its worth a crack. Eventually I will deck out a whole room with the them for a HT.
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Old 12th September 2017, 11:49 AM   #9
Mrcloc is offline Mrcloc  South Africa
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Join Date: May 2016
Location: Pretoria
Nice.

XT25BG? Those are the exact tweeters I'm putting into my speakers. A hopeful upgrade from Visaton SC 10 N. I do think they will be difficult to make into MTM, though. Perhaps look at the NE19VTS? They appear to be great, and at only about 5 cm diameter, they might work better in MTM configuration than the XT25BG's.
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Old 12th September 2017, 12:07 PM   #10
HatlessChimp is offline HatlessChimp
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Quote:
Originally Posted by Mrcloc View Post
Nice.

XT25BG? Those are the exact tweeters I'm putting into my speakers. A hopeful upgrade from Visaton SC 10 N. I do think they will be difficult to make into MTM, though. Perhaps look at the NE19VTS? They appear to be great, and at only about 5 cm diameter, they might work better in MTM configuration than the XT25BG's.
I have a pretty good computer generated design thats flat with very few components. But dont know how it is in the real world.
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