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Multi-Way Conventional loudspeakers with crossovers

Building my first speaker
Building my first speaker
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Old 10th February 2018, 09:08 PM   #1
Andrew1211 is offline Andrew1211  Ukraine
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Default Building my first speaker

Good day
I'm going to build my first speakers
I have read many information about drivers and stopped on
HF-mid driver radian 950
LW- radian 2216???
Labyrinth eclosure for LF( I have a friend who can calculate it)
I want to begin with two-way system because i'm new and 3 ways may be too difficult for me
I would be very grateful if you answer on my questions and help me with this
I know that radian 950 is great driver, but I know nothing about radian 2216(they were recommended by radian's support)
What low frequency driver would you recommend as best match for radian 950?
I can buy radian 2216 woofer but there are no distributors of radian in my country, so shipping and taxes will cost me extra 300-400usd
Budget for woofers is up to 800usd, maybe 1000 if they are significantly better

What horns would you recommend for 950?
Do they need super tweeter?

Sorry for my English)
Thanks in advance
p.s. following speakers are available in my country:
B&C, faital pro, beyma, eminence
There is sale on Beyma 15P80Nd(350usd)
Have someone tried them?

Last edited by Andrew1211; 10th February 2018 at 10:11 PM.
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Old 11th February 2018, 06:51 PM   #2
Mrcloc is offline Mrcloc  South Africa
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Hi. The beyma 15p80nd is very different to the radian 2216. Still, what are you planning? It looks like PA. Professional audio is very different to home audio. Perhaps ask in the PA sub-forum? I'm sure there would be more experience about these kinds of speakers there.
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Old 11th February 2018, 08:48 PM   #3
Andrew1211 is offline Andrew1211  Ukraine
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Quote:
Originally Posted by Mrcloc View Post
Hi. The beyma 15p80nd is very different to the radian 2216. Still, what are you planning? It looks like PA. Professional audio is very different to home audio. Perhaps ask in the PA sub-forum? I'm sure there would be more experience about these kinds of speakers there.
Hi
At first I wanted to build classic jbl system(for home use with tube amp)
Hf jbl 2446+ 2360 horns
Lf jbl 2220 in original 4560 cabinets

Then I have read that radian is better than 2446 and 2220 with 4560 doesn't play lower than 60hz so I decided to try project on new parts
But I've understood that pro audio woofers are not suitable for home use

There are few high end systems with radian 950 in my country
Now I can't decide to go with radian 950(1200usd in my country) or jbl 2446(I can buy in ideal condition for 400usd + horn 100usd)
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Old 11th February 2018, 09:32 PM   #4
globalplayer is offline globalplayer  Germany
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Quote:
Originally Posted by Andrew1211 View Post
But I've understood that pro audio woofers are not suitable for home use
Why?
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Old 11th February 2018, 10:31 PM   #5
Andrew1211 is offline Andrew1211  Ukraine
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Originally Posted by globalplayer View Post
Why?
I want to use single amplifier and don't want to add second pro amplifier for woofer
At first I thought that it will work fine but ukrainian dealer of beyma, faital and b&c told me that it will not work properly and 50-100watt average amp simply will not be enough
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Old 12th February 2018, 12:35 AM   #6
globalplayer is offline globalplayer  Germany
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Quote:
Originally Posted by Andrew1211 View Post
I want to use single amplifier and don't want to add second pro amplifier for woofer
At first I thought that it will work fine but ukrainian dealer of beyma, faital and b&c told me that it will not work properly and 50-100watt average amp simply will not be enough
Pro speakers will have much higher efficiency than your normal hifi speakers.
~ 90-100dB vs. ~ 80-90dB.
So you will need much less amp power for the same loudness.
Of course with a 50-100w amp you won`t push them to their limits, but indoor this isn`t exactly "healthy".

Right now I use a 5w amp I ripped out of a old computer speaker sub enclosure with a 6th order kickbin as sub just for the fun. When I turn it all the way up until it clips and then a bit down I can feel the bass in my stomach and it will shake the house.
5w can be a lot with pro speakers and a efficient enclosure.

On that same 5W amp I used a very efficient Fane 12-250TC pro fullrange. Those 5W are enough to cause hearing damage after a short amount of time. Although it might be reversible if you back off the volume "in time".

On high efficiency speakers (around 100db) 50-100w is enough to cause permanent hearing damage in a short amount of time.

With pro speakers indoor I would rather worry about my hearing and not about amp power.
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Old 12th February 2018, 12:54 AM   #7
kec is offline kec  United States
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Quote:
Originally Posted by Andrew1211 View Post
At first I thought that it will work fine but ukrainian dealer of beyma, faital and b&c told me that it will not work properly and 50-100watt average amp simply will not be enough
Hmm...sounds like that dealer wants to sell you an amp.
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Old 12th February 2018, 04:33 AM   #8
Andrew1211 is offline Andrew1211  Ukraine
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Thank you
So what LF driver would you recommend for two way system with radian 950?
From b&c, faital or beyma?
Budget is 400-500usd per speaker

Last edited by Andrew1211; 12th February 2018 at 04:37 AM.
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Old 12th February 2018, 04:33 AM   #9
Andrew1211 is offline Andrew1211  Ukraine
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I just thought that it will sound loud but not as it should sound
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Old 12th February 2018, 11:26 AM   #10
Lojzek is offline Lojzek  Croatia
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Isn't a 2" CD too much of a HF compromise in regard to SQ?
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