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Multi-Way Conventional loudspeakers with crossovers

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Old 9th May 2009, 04:59 PM   #1
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Default Ist Post! Where to start?

Hello all,

I'm considering a first build but not sure where to start!
I'm looking at building a 3-way, neutral sounding, floorstander (something like a PMC OB1i). Was looking to spend about 1000 on drivers and crossover components in the hope that the finished article would be audiophile quality!

I'm sorry if these are stupid questions (just seems the obvious thing to ask) but:

Is there any consensus as to what drivers ( tweeter, mid, bass)are the "Best" or work well together?

Is there a tried and trusted plan (crossover component diagram and well matched drivers) that I could get my hands on?


Any advice would be greatly appreciated. I live in the UK if that is an issue as far as component availiability is concerned. Am trying to find an online uk supplier, but not having much lick at the mo!
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Old 9th May 2009, 05:59 PM   #2
mattmcl is offline mattmcl  United States
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I'm building a set of short Thors, you can search my username to find the thread. They're transmission line rather than three-way, but there is a ton of information out there about them, and nothing but very, very good reviews. Total build cost is around $2,000USD.
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Old 9th May 2009, 06:20 PM   #3
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Default Kits - Uk Loudspeaker Kits

Quote:
Originally posted by feeblechimp

Is there any consensus as to what drivers ( tweeter, mid, bass)are the "Best" or work well together?
Yes, after a lot of work.

Quote:
Originally posted by feeblechimp

Is there a tried and trusted plan (crossover component diagram and well matched drivers) that I could get my hands on?
No. All of them are unique.

PMC's are one of the best manufacturers that you can play with for fun (go to a building thread or start one - this). They have a new design PMC-PB1i (transmission line).
www.pmc-speakers.com

Wilmslow Audio
https://secure.wilmslow-audio.co.uk/...6ce545c267443b

World Designs
http://wduk.worldomain.net/
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Old 9th May 2009, 07:03 PM   #4
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Very good speaker information, a forum and kits from Wayne taking advantage of the price of the dollar.

PI SPEAKERS
http://www.pispeakers.com/contents.html

diyAudio Forums - Short Thor build
Short Thor build
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Old 9th May 2009, 07:05 PM   #5
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Default Excellent!

Many, many thanks for the advice / links.

The Seas Thor looks to be very similar in design to the PMC's I was looking at... and the links take me straight to UK sources for parts.-- what more can I ask!!

Very much appreciated

Thank you again!!!
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Old 9th May 2009, 10:32 PM   #6
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Hello again, Just a quick question, I'm asuming that sound quality of the seas thor kit would be a significant upgrade on Kef IQ5se's?

thanks
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Old 9th May 2009, 10:49 PM   #7
ScottG is offline ScottG  United States
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3 of the better websites for DIY designs are:

http://www.troelsgravesen.dk/Diy_Lou...r_Projects.htm

http://www.humblehomemadehifi.com/

http://www.zaphaudio.com/

..at each one you can find various well documented designs.

What design will be best for you? For that you'll need to consider a few things:

How loud do you listen? How "deep" a low freq. response do you want?

How large a loudspeaker do you want?

Do you have a subwoofer(s), or are you planning on using some?

What sort of amplifier are you considering to pair it with?

Is there any specific quality that you would like most to have?
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perspective is everything
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Old 10th May 2009, 09:30 AM   #8
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Hello ScottG

I'm looking to build a relatively high end neutral / full sounding floorstander for stereo. I do have a subwoofer but would prefer to use it just for HT
Will be looking to build rears and centre at a later date but will see how I do with these first. Woodworking/DIY skills are not a problem. The only potential problem I have is the design/build of the crossover as I've never done anything with a solder iron before, hence the requirement of a detailed plan.

Current electronics used are midrange Marantz PM8003/SA7003/SR6003

The Seas Thor is certainly option 1 at the moment. In an ideal world I would probably looking to clone a PMC OB1

http://www.pmc-speakers.com/product....e=view&pid=174

From a style perspective the PMC enclosure looks like something I would be looking to replicate (similar to Thor). I can't find any specific info on the drivers they use though. That said I doubt I would be able to get a schematic of their crossover anyway... unless anyone has one!

Is there anything else I might consider that is "better" than the Thor?
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Old 10th May 2009, 05:19 PM   #9
mattmcl is offline mattmcl  United States
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Location: Erie, CO
I wouldn't worry too much about soldering skills with building a crossover. You can just solder each component to the next without using a PCB board. It's not hard at all, if you Google "How to solder" you'll find some YouTube videos that show how to do it.
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Old 10th May 2009, 10:35 PM   #10
krips is offline krips  Canada
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http://www.htguide.com/forum/showthread.php4?t=28655
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