SBL Buzzing Again!! Please Help

Posted by: mikeybaby on 08 January 2016

I have sent my SBL bass drivers to a specialist two times and they still buzz when I play certain piano passages. He  has checked everything meticulously from cables and phase plugs to crossovers, and both drivers still buzz at certain frequencies.( 400Hz I believe. )I am thinking of ordering two new drivers from Naim but they are over 300 USD each. Is it time for new drivers? Would buying used Mk1 drivers be an alternative? How about using Credo drivers? Thanks.

Posted on: 08 January 2016 by blythe

Could it be possible that it's something else actually buzzing? A nearby piece of furniture? The recording itself? Has your specialist visited your home to hear this for himself?
It's always tricky trying to diagnose sound issues without actually hearing it.

Posted on: 08 January 2016 by naim_nymph

Are you sure the problem is your mid-bass drivers?, they're far less likely to wear out than tweeters.

It's an easy check while playing piano music - play it [not too loud] with an ear close up to the tweeter box to hear for any odd noises on or just after each piano note. When my SBL tweets wore out the sound was more obviously distorted with piano sound, and with a drawn-out ghostly 'whoosh' or 'shoozz' echo after each piano note, altogether rather unnatural and sonically unpleasant.

Tweeters can make all kinds of wrong noises when worn out or malfunctioning : )

Debs

 

Posted on: 08 January 2016 by mikeybaby

No the tweeters are new. i also unplugged them . The bass drivers just cant be repaired .Buzz wont go away.

Posted on: 08 January 2016 by naim_nymph

Are the X-overs original, they could do with replacing if so.

Another check is for corrosion or bad connection at speaker cable terminals.

Hope it's not your bass drivers, new ones will cost far more than $300 each, that sounds like a quote for tweeters.

Posted on: 09 January 2016 by mikeybaby

Stick a fork in me- I am done with these speakers!!

Posted on: 10 January 2016 by Echo Room

I have experienced a similar problems with high frequency artifacts (ringing) being heard on my sbls/ NAT02 when listening to choral and piano works. 

It seems to only appear on BBC radio 3 and is intermittent. Initially I suspected it was my kit but its possible to just about hear it on on other systems. Ie iplayer etc. Its just that my SBLs continue to be ruthlessly revealing of source material.

Has anyone else experienced this on R3 on FM?

 

Thanks

Posted on: 10 January 2016 by mikeybaby

Maybe it is in the original recording from the 80's. I will try some different pieces.Thanks.