So, your ports are no longer than the thickness of the baffle?
Try stuffing the box. Try covering half the port.
John
Celestion Neodymium 5" for bargain price?
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Re: Celestion Neodymium 5" for bargain price?
Do not limit yourself to what others think is reasonable or possible.
www.johnchristou.com
www.johnchristou.com
Re: Celestion Neodymium 5" for bargain price?
The ports are slightly thicker than the baffle. I'll try a few things. Thanks, John.
I think this setup has potential.
I am thinking I should cut a new baffle. Maybe the ports themselves are rattling in addition to be out of tune.
I am thinking a 4x 5" has even more potential. A 2x5" is half the area of a single 10", a good practice speaker. A 4x5" has the same area as a 10", probably good enough for a gig. This isn't perfect as the real surface area is not A=pi * r^2 because it is a cone and the dome doesn't count, but it is close enough. Four of these at 30W each would make for a cab that could mate with anything. Four x 4 ohms would allow 4 ohms or 16 ohms.
I think this setup has potential.
I am thinking I should cut a new baffle. Maybe the ports themselves are rattling in addition to be out of tune.
I am thinking a 4x 5" has even more potential. A 2x5" is half the area of a single 10", a good practice speaker. A 4x5" has the same area as a 10", probably good enough for a gig. This isn't perfect as the real surface area is not A=pi * r^2 because it is a cone and the dome doesn't count, but it is close enough. Four of these at 30W each would make for a cab that could mate with anything. Four x 4 ohms would allow 4 ohms or 16 ohms.
Re: Celestion Neodymium 5" for bargain price?
I try every chance I getCantplay wrote:
Try stuffing the box.
John
Re: Celestion Neodymium 5" for bargain price?
FWIW I think you are better off with a sealed cabinet. A ported cab. actually sacrifices some lower mid sensitivity for low freq. extension.
IMHO you want a strong lower midrange response for guitar as this tends to be the frequencies that give the impression of "body" and "warmth".
Also the roll-off is more gradual with a sealed box, and sealed boxes also
allow more equalization(L.F.) with less danger of overexcursion. If you need more lows..turn the bass up!
IMHO you want a strong lower midrange response for guitar as this tends to be the frequencies that give the impression of "body" and "warmth".
Also the roll-off is more gradual with a sealed box, and sealed boxes also
allow more equalization(L.F.) with less danger of overexcursion. If you need more lows..turn the bass up!
Re: Celestion Neodymium 5" for bargain price?
I'd be happy to get rid of the port.
I'm a hack when it comes to speakers. the T/S parameters indicate this: Compliance Equivalent Volume (Vas) .13 cu ft.
Does that mean .26 cu ft for 2 speakers in a sealed cab? The cab I built is 2x that. It would mean shrinking the height (OK, can lose ~3" from the ports, top, bottom), but it wouldn't have much depth. It would be barely deep enough. I figure, for a pair of 5" speakers, interior is roughly 12.5 x 7.25 x 2.5. I think a 1" border is needed to attach the baffle. The baffle braces take up a little air, maybe it could be 3" deep? This just seems really small.
Is this making sense? Or just put them in the .25 cu ft cab and see if it works?
I'm a hack when it comes to speakers. the T/S parameters indicate this: Compliance Equivalent Volume (Vas) .13 cu ft.
Does that mean .26 cu ft for 2 speakers in a sealed cab? The cab I built is 2x that. It would mean shrinking the height (OK, can lose ~3" from the ports, top, bottom), but it wouldn't have much depth. It would be barely deep enough. I figure, for a pair of 5" speakers, interior is roughly 12.5 x 7.25 x 2.5. I think a 1" border is needed to attach the baffle. The baffle braces take up a little air, maybe it could be 3" deep? This just seems really small.
Is this making sense? Or just put them in the .25 cu ft cab and see if it works?
Re: Celestion Neodymium 5" for bargain price?
I would put them in the .25 and let her rip. There are so many subjective variables to sound & tone never mind the math. You really won't know until you try it.
To date the best sounding cab I have built was a test to see how small I could build a 2x12 - an epic failure as the magnets wanted to occupy the same cubic inch of space. As a 2x10 my oh my did it sound nice - sparkly rich and still too much bass!
Russ
To date the best sounding cab I have built was a test to see how small I could build a 2x12 - an epic failure as the magnets wanted to occupy the same cubic inch of space. As a 2x10 my oh my did it sound nice - sparkly rich and still too much bass!
Russ