I just picked up a pair of these DM630N speakers and I can confirm they are wired in reverse polarity, as someone else mentioned below. This is very strange to me as I am trying to make a good set from 1.5 sets ( 2 blown woofers) and never seen speakers wired opposite like this before.
What I really need is for someone with unmolested DM630 speakers to pop the woofers out and send me photos of the wiring configuration as well as the L and R markings on the woofers and their placement - I'd be VERY thankful!
Nope, and no help from the factory. The circuit diagrams I found IIRC suggested out of phase wiring for the woofers in each cabinet - which sounded like garbage. They sound okay wired in phase and that's how they've remained, but the bass won't impress anyone.
Which would mean that the speakers had their drivers swapped between the L and R speakers by a previous owner. Another oddity was that the speaker drivers all were otherwise identical, but you'd think a midrange driver would be a different part number. My solution was put them back together and sell them. I did wire them so that all drivers moved in unison which sounded far better than the bassless, midrange sound they had when I acquired them.
I upgraded to a very lovely pair of Thiel SCS 3 speakers and I'm very much enthralled by them but a year ago I'd have been thrilled to take you up on your offer. Now those speakers await sale on Craigslist and I'm washing my hands of them. One day another DM630 owner will stumble upon your kind offer and likely beg your assistance!
I just picked up a pair of these DM630N speakers and I can confirm they are wired in reverse polarity, as someone else mentioned below. This is very strange to me as I am trying to make a good set from 1.5 sets ( 2 blown woofers) and never seen speakers wired opposite like this before.
It's heartening to know my theory was correct - nothing else made sense. Thanks!
What I really need is for someone with unmolested DM630 speakers to pop the woofers out and send me photos of the wiring configuration as well as the L and R markings on the woofers and their placement - I'd be VERY thankful!
Maybe a bad repair
I just got some - bass is thin also - are the cables soldered on ?
Push on lugs, standard issue for most speakers. My goal now is to sell them to someone who hates bass. ;^)
Did you get an answer ?
Nope, and no help from the factory. The circuit diagrams I found IIRC suggested out of phase wiring for the woofers in each cabinet - which sounded like garbage. They sound okay wired in phase and that's how they've remained, but the bass won't impress anyone.
See Shane's reply. Mystery solved, though we'll never know why B&W sold such bass deficient speakers.
In a 3 ways configuration, the midrange is polarity inverse.
Which would mean that the speakers had their drivers swapped between the L and R speakers by a previous owner. Another oddity was that the speaker drivers all were otherwise identical, but you'd think a midrange driver would be a different part number.
My solution was put them back together and sell them. I did wire them so that all drivers moved in unison which sounded far better than the bassless, midrange sound they had when I acquired them.
I have a pair from new, how do I remove the speakers? I can then check the wiring for you
I upgraded to a very lovely pair of Thiel SCS 3 speakers and I'm very much enthralled by them but a year ago I'd have been thrilled to take you up on your offer. Now those speakers await sale on Craigslist and I'm washing my hands of them. One day another DM630 owner will stumble upon your kind offer and likely beg your assistance!
Aren’t you just that little bit curious ? 😂
@@gazzathefish Actually I am. Feel free to enlighten me if / when you have yours apart!