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Archive Home >> All About Speakers(1 2 3 4 5 6 7 8 9 10 11 12 ) >> Sub woofer--Down or forward firing(5 posts)


Sub woofer--Down or forward firingNew Guy
Jul 23, 2001 6:11 AM
Does it really make a differance??
re: Sub woofer--Down or forward firingPat D
Jul 23, 2001 6:24 AM
No, unless you have a carpet so thick it will interfere with the airflow from a down firing sub! But even that's an easy fix: put it on a board. It's performance that counts.
"It's performance that counts"Dennis
Jul 24, 2001 9:38 AM
I'll buy that, explain why you use el-cheapo cables with your 63s???
"It's performance that counts"Pat D
Jul 24, 2001 10:15 AM
Confucius say: 'Inexpensive cables cost less than expensive cables.'

We've missed you, Dennis! Do you still like your VMPS speakers, and have you been able to post a Review yet?
Forward firing vs. down-firing advantages & disadvantagesRichard Greene
Jul 24, 2001 8:49 AM
For a subwoofer placed in a room corner:

(1)Down-firing will vibrate the floor slightly more than
forward firing and will vibrate the front wall much more
than forward-firing. If either the floor or walls resonate
they can usually be silenced with inexpensive heavy slabs of concrete
(patio blocks from Home Depot) under the sub and/or on the floor (vertical) leaning against the wall(s)

(2)Downfiring will reduce the xmax (stroke) in one direction
by at least 0.5mm due to cone sag ... that will very gradually increase over the years. Not likely to be audible.

Down-firing will have an if the sub uses an inexpensive cardboard tube enclosure. Money saved on the tube can be invested in a better driver -- so for the same total price you would get a cheaper enclosure and more expensive driver inside -- that's a difference you can hear.

I have two DIY subs in use at home -- one is forward-firing and
the other is up-firing.
 


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