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Multi-Way Conventional loudspeakers with crossovers

Should I modify ADS L570/2 or Yamaha NS 670 speakers?
Should I modify ADS L570/2 or Yamaha NS 670 speakers?
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Old 4th February 2018, 12:26 AM   #1
Jimmy154 is offline Jimmy154  United States
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Default Should I modify ADS L570/2 or Yamaha NS 670 speakers?

PAIR ADS SPEAKERS MODEL L570 / 2 MADE IN USA Photo #818023 - Canuck Audio Mart

or

Rare Vintage Yamaha speakers NS-670 Photo #348553 - Canuck Audio Mart

I like the Yamaha speakers build quality.
But having trouble crossing over Dayton RS52AN-8
Have Dayton RS270S-08 for the low end and bunch of tweeters for high end
Can also go with RS125 and RS150 for 3-way, but I don't know how to do a simple x-over for it

Or I can put a Wavecor TW30 tweeter and Silver flute 8" woofer into the ADS L570/2 and call it done, that should be much easier
Then later I can modify the enclosure
ADs appeals to me because it has a metal grill
I need metal grills on my speakers
Making grills is almost 50% of the enclosure work for me

But the Yamaha is build really well

What should I do?
Does this make any sense?
It's a lot more complex, but I don't want to over complicate my questions.

I feel the RS52AN-8 has very limited use, maybe more for hard core audiophiles and I just want to keep things simple
Hardest thing to figure out is how to cross-over RS125 or RS150 to RS270
I also have other midrange drivers

Using the RS52 I have 2-3 cross-overs to copy/modify
Putting in a RS125/RS150 and crossing to RS270, I can't find any cross-overs to modify slightly

I'd like to do a 3-way with all 6db/octave cross-overs, but it seems next to impossible
Attached Images
File Type: jpg yamaha NS 670.jpg (442.3 KB, 221 views)
File Type: jpg ads L570-2.jpg (191.9 KB, 216 views)
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Old 4th February 2018, 01:18 AM   #2
chops is offline chops  United States
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Quote:
Originally Posted by Jimmy154 View Post
What should I do?
Does this make any sense?
None of this make sense to me.

Do you already have these speakers? Are all of the drivers blown?

Or are you wanting to buy these speakers then throw different drivers in them? If so, why would you want to?
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Old 4th February 2018, 06:13 AM   #3
picowallspeaker is offline picowallspeaker  Italy
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I'd take the Yamahas ( 3 way speakers ) and the only thing to modify would be the elimination of the L-pads. Much fun of changing the ratio of R1/R2
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Old 4th February 2018, 01:26 PM   #4
Jimmy154 is offline Jimmy154  United States
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1) Yamaha cabs are nice
2) I need grills, therefore RS52AN-8 seems like a good choice
3) ADS comes with grills, so I don't need a grill(s) and less cross-over work and woodwork

I think I might try Yamaha with RS125 to RS270, if I can find an existing cross over for this type of setup

Yamaha (except for the back) is 1" plywood and braced
Back is 1" particle board, that I can replace if it bothers me

Funny thing is I have a suspicion I won't like the yamaha with a RS52 because the woofer (RS270) is too big to match with the RS52

I had a ADS 3.5-way in my living room and it sounded good, but that's because it had two 6.5-7 inch woofer per speaker, I think

I really just like drivers that come with (metal) grills attached
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Old 4th February 2018, 02:33 PM   #5
chops is offline chops  United States
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This thread still doesn't make any sense and you still haven't mentioned why you want to replace perfectly good, functioning drivers (with correct matching crossovers no less) to a bunch of different drivers and some random crossovers.
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Old 4th February 2018, 02:35 PM   #6
chops is offline chops  United States
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Quote:
Originally Posted by picowallspeaker View Post
I'd take the Yamahas ( 3 way speakers ) and the only thing to modify would be the elimination of the L-pads. Much fun of changing the ratio of R1/R2
I'd take either and replace/upgrade the caps in the crossovers, and with the Yammy's, bypass the L-pads like you said. I would KEEP the stock drivers!
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Old 4th February 2018, 03:19 PM   #7
boswald is offline boswald  United States
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Should I modify ADS L570/2 or Yamaha NS 670 speakers?
You have a lot of conflicting desires, and it sounds like you need to build a few different speakers.
Your rs52s and rs270s can be built into Tony Gee's Blackbox.
Your desire for a 6db 3way will require genuinely appropriate drivers(see the seas 303 for examples of suitable behavior to help you find new similar), or some skillfull dsp work to pull off actual 6db acoustics.
Or you could build an ADS style 3way under your ADS's grills.

You've got too many choices, time to build some speakers and learn what your actual listening preferences are.
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Old 4th February 2018, 03:55 PM   #8
Jimmy154 is offline Jimmy154  United States
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Yeah, I think I made my original post too confusing
Please any one let me know if you find a 3-way published schematic using RS125 or RS150 and RS270

Black Box cross over is way, way too complex
Needs to sound 10 times better over simpler cross over for me to build it
I'm generally not crazy about most Dayton drivers anyway, so if I was going to put that much work/effort into something it would be with ScanSpeak or SB Acoustics drivers or similar quality

I guess I just have no time to build what I want
I'm pretty sure RS52 and RS270 is not a good match, but not 100%
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Old 4th February 2018, 06:02 PM   #9
chops is offline chops  United States
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And yet my posts/questions are still being completely ignored.

What are you attempting to accomplish destroying perfectly good, fully functional, highly successful speakers by throwing random drivers in them and 1st order crossovers that probably won't provide any good results?

What's the point?!
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Old 4th February 2018, 07:55 PM   #10
Lojzek is offline Lojzek  Croatia
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Quote:
Originally Posted by Jimmy154 View Post
Hardest thing to figure out is how to cross-over RS125 or RS150 to RS270
I also have other midrange drivers...
I'd like to do a 3-way with all 6db/octave cross-overs, but it seems next to impossible

Hi, 1st order filters could hardly be considered anything more than just an illusion of a decent filter. I could try to simulate a simple filter with Dayton drivers since these come with ready made measurement files, I'd simply need to add baffle diffraction and box loading, if you don't have any objection to that, once I know what the baffle measures might be.
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