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Comments
soldering a 25ohm resistor onto a terminal
Maybe it's his DMM that's broken.
I can't think of any way of knowing how it reads 29 ohms.
I haven't yet connected the driver to a speaker wire, to see if sound eminates from it.
I'm a bit concerned I could blow up a device finding out...
What if I connect it to my valve amp!
Aren't they more tolerant of crossed wireds? :-?
I did short the terminals & got 0 ohms...
:-??
Maybe try a large battery? If the cone flies out of the speaker you'll know it wasn't broken.
Ok looking for opinions / advice - I've read Geddes talk about multisubs and he makes a point that the room modes in the 100 -200 Hz region (above the subs) are far more important.
My room dims are 18' x 13'4" x 7'10" and no matter where I put the mic, I get a dip at 130Hz. Other modes seem to come and go, as the mic moves around the room, but 130Hz persists. Because it is a relatively narrow dip but signif deep I am thinking that possibly a Helmholz resonator or 2, targeted for 130Hz might improve things. Thoughts ?
Got link?
Graph?
I'll post a graph or 2 tonight. I have plenty illustrating the 130 hole.
What are you hoping to see ? Lots of other modes, few other modes ?
from the current listening position (symmetrical mains/woofers) ? cause all these measurements could easily promote re-arranging the room.....
I'll find Geddes' text where he stresses that if you don't fix the 100-200 modal region,
"your system will sound like shyte" - I hadn't realised he was Scottish until then.
A graph
What's the height of your ceiling?
that would be the smallest of the dims in my previous post - I can't remember off the top of my knee.
It would at that. See bobgolds.com. So perhaps boundary reflections - speakers 1.25 m from wall?
speakers are diagonally placed so each one is <1m from the nearest wall, but could be1.25m from the other adjacent wall - if you get my drift, Fonzie.
Actually it would be a quarter wavelength so around 0.65m if I'm working it out right.
Easy way to test that theory is to move the speaker. Shouldn't take long :-P
Or it could be that you'll just have to start all over again.
Dr Jack Fonzie