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Multi-Way Conventional loudspeakers with crossovers

Project suggestions..Please
Project suggestions..Please
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Old 15th February 2008, 04:00 PM   #1
wboyd is offline wboyd  United States
diyAudio Member
Join Date: Aug 2004
Location: Louisville, KY
Default Project suggestions..Please

I recently acquired a second set of Electro Voice EVM12L drivers and have been looking for a fairly simple project for them....nothing fancy. Any suggestions from you speaker gurus? And yes...I know this is a loaded question....just thought the some of you guys could throw some ideas my way…send me to sites, etc.

Just looking for something to do.

I will give some system details….I will be driving new speakers with a tube amp which uses 4 6550 power tubes…not exactly sure of the wattage….around 150 – 165 I think.

I also have 2 NAD 100 watt solid state amps and four 8 watt SET amps from Akai R2R decks (nice sounding – may get rid of 2 of them)

I also have a gainclone (3886 chipamp.com) kit which is not quite finished…sounds nice but needs a little work.

I am looking to spend probably no more than a thousand bucks.

I have been here - http://www.volvotreter.de/dl-section.htm (under plans: 150hz Tactrix) but they look a little time consuming…but nice. Was wondering if anyone else had built these?

I am not opposed to building a three way horn system….just want to keep the cost/build time down.

So, I have done a little research but I have not seem a lot of DIY projects with these pro series drivers.

"I am always doing that which I cannot do, in order that I may learn how to do it"
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Old 15th February 2008, 08:06 PM   #2
PeteMcK is offline PeteMcK
diyAudio Member
Join Date: Feb 2002
Location: Western Sydney
If you search there are EV spec. sheets which give their recommendations; they're relatively insensitive to box size so a ported EBS alignment in a small box (~40L?) seems best.
However I don't really think these are suitable for HiFi (they're guitar speakers)- they're only flat between ~ 80-800Hz, which means you'd probably need a 4-way design to use them, and they have a huge peak which would need to be dealt with.
Frankly, if I had a grand to spend on speakers, I'd buy some high quality scandinavian drivers, - you could build an amazing system with that much dough....
Impedance varies with frequency, use impedance plots of your drivers and make crossover calculations using the actual impedance of the driver at the crossover frequency
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