El Cheapo MCM FR drivers - has anyone used them? - diyAudio
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Old 16th October 2006, 03:40 AM   #1
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Default El Cheapo MCM FR drivers - has anyone used them?

MCM has some 11$ drivers that don't look too bad.

http://www.mcminone.com/product.asp?...5Fid=55%2D1854


http://www.mcminone.com/product.asp?...5Fid=55%2D1595

http://www.mcminone.com/product.asp?...%5Fid=51%2D075

Are any of these worth the cost of shipping?
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Old 16th October 2006, 02:01 PM   #2
badman is online now badman  United States
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Default The last one

The last one looks an awful lot like their older (sadly discontinued) 55-1200 which is a very good driver... not all 'budget' drivers are necessarily bad, I'd give it a shot!
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Old 16th October 2006, 02:38 PM   #3
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Slap one in a BIB and get 30Hz horn-loaded bass for about $30 including build materials if you use chipboard or MDF. Can't be bad at that price. I suspect there's plenty you can do to improve the driver too.
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Old 18th October 2006, 01:35 AM   #4
gychang is offline gychang  United States
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Default cheapie BIB!

Quote:
Originally posted by Scottmoose
Slap one in a BIB and get 30Hz horn-loaded bass for about $30 including build materials if you use chipboard or MDF. Can't be bad at that price. I suspect there's plenty you can do to improve the driver too.

any suggestions on the size/demension?, may try this for kicks... with this driver.

http://www.mcminone.com/product.asp?...%5Fid=51%2D075

gychang
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Old 18th October 2006, 01:42 AM   #5
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Default Re: cheapie BIB!

Quote:
Originally posted by gychang



any suggestions on the size/demension?, may try this for kicks... with this driver.

http://www.mcminone.com/product.asp?...%5Fid=51%2D075

gychang
The 075 looks to be a crappified version of its predecessor. Still, who knows?
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Old 18th October 2006, 12:35 PM   #6
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Having played with and modified a number of cheap drivers with very good results I'd say these drivers are well worth a try, I'd forget the first one, sensitivity is too low and it won't mod real well with that cone material. The other two look good, I think I'd go for the 5 inch but heck try both.

I wonder about the efficeincy rating for the 4.5 incher, it may well reach that 96db at some point in the range but is likely to be pretty peaky, however it would likely work very well in a double bass enclosure, or maybe a frugel horn even.

For $11.00 though you really can't lose, you'd find a use for them somewhere.

I'd say intergrating them with a car super tweeter crossed over at about 10k would work real well and most likely phase plugs would reap big results.
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Old 18th October 2006, 01:05 PM   #7
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Try a 120in line length, driver at 24in down from the sealed end, 70in^2 terminus area.
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Old 19th October 2006, 07:10 AM   #8
gychang is offline gychang  United States
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Quote:
Originally posted by Scottmoose
Try a 120in line length, driver at 24in down from the sealed end, 70in^2 terminus area.

Scott: are the following figure look reasonable?

W: 7"
D: 10"
Ht: 60"
Z driver: 24" from top
int baffle: ends 5" from bottom, since A=B=C=5.

thanks in advance.

gychang
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Old 31st October 2006, 08:27 PM   #9
gychang is offline gychang  United States
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Default $11 speakers here it comes.

Quote:
Originally posted by Scottmoose
Try a 120in line length, driver at 24in down from the sealed end, 70in^2 terminus area.

I am almost finished, will put up pics and sounds soon..., do u mean 24" down from the top (open end)?, otherwise I will have to flip mine over...

gychang
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Old 10th November 2006, 12:07 PM   #10
gychang is offline gychang  United States
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Default Re: El Cheapo MCM FR drivers - has anyone used them?

Quote:
Originally posted by Spasticteapot
MCM has some 11$ drivers that don't look too bad.

http://www.mcminone.com/product.asp?...%5Fid=51%2D075

Are any of these worth the cost of shipping?
I finished my project, thanks for your initial suggestion on the speaker, I built one with 4 1/2", Scottmoose gave me dimensions. You can see the speakers here:

http://gychang.smugmug.com/gallery/2055074

read about it here:

BIB and underwear, nothing on top


Result is outstanding to say the least, sound is devine to my ear. thanks for putting up the initial suggestion.

gychang
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