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Multi-Way Conventional loudspeakers with crossovers

Help choosing midrange and p.o.c.
Help choosing midrange and p.o.c.
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Old 25th June 2014, 12:21 AM   #1
icsohn94 is offline icsohn94  South Korea
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Default Help choosing midrange and p.o.c.

I plan to build a 3 way using SS D2905/9900 for tweeter and SS 21W/8555-00 (8") for woofer with 60 liters ported cabinet.

Could you recommend a relevant midrange driver and points of crossover ?
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Old 25th June 2014, 04:29 AM   #2
Absconditus is offline Absconditus  Australia
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If it was me; Scanspeak Discovery 10F/8424G 4" Midrange 8 ohm
The Madisound Speaker Store

Crossover points around 300Hz and 3k Hz, and if was for me, I'd go active just like the speakers playing Eurythmics now.

Abs

Last edited by Absconditus; 25th June 2014 at 04:30 AM. Reason: Didn't look like I thought it would, so fixed it.
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Old 25th June 2014, 11:27 AM   #3
system7 is offline system7  United Kingdom
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That is a nice choice of midrange by Absconditus. This is how you do a passive Scanspeak three way using something similar:

ScanSpeak-3W-Discovery

Although it uses neither of your two drivers, you might say it uses more appropriate ones.

Your ScanSpeak Classic 21W/8555-00 is going to need some complex filtering to deal with the peak at 3.5kHz. You see, his one is easier.

Troels' choice of a ring radiator tweeter rather than a soft dome is also something a lot of people would approve. So now you understand the design choices better, I hope. Good luck, it's going to sound very good regardless.
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Last edited by system7; 25th June 2014 at 11:29 AM.
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Old 25th June 2014, 07:14 PM   #4
jReave is offline jReave  Canada
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How many woofers?
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Old 25th June 2014, 09:05 PM   #5
icsohn94 is offline icsohn94  South Korea
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Quote:
Originally Posted by jReave View Post
How many woofers?
Single woofer.
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Old 25th June 2014, 11:24 PM   #6
jReave is offline jReave  Canada
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Ok, with the drivers you have chosen so far, you want to stay in the upper end of sound quality. In no particular order:

scanspeak-15w/8530k-00 +/- 350Hz & about 2800Hz
satori-mw16p +/- 300Hz & about 2000Hz
BG, Neo10 +/- 500Hz & about 3000Hz
BG, Neo8-S +/- 600Hz & +/- 3500Hz
Vifa NE149W-08 xo about same as SS above
Vifa NE180W-08 xo about the same as Sarori above

Others can add their own preferences. You might also find these threads helpful:
What mid and tweeter for high end 3-way
Big price drop on the SB Satori Woofer
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