ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Hello from a new member, really liking this forum.
My LH MS 150-2 speaker phase-link mid unit has blown. I'll have to be quick because the tears are ruining my keyboard.
I'm pretty sure it's the driver as the distortion is volume and frequency related (solo piano particularly gruesome), but I wouldn't know what a faulty crossover sounds like, or if it would kick in at a certain volume, so any help there would be much appreciated.
Anyway my question - there's a pair of S 120s for sale on ebay - I'm wondering if the units are the same? They certainly look the same, obviously it's 120w and 150w but I'm thinking would they use different drivers for a relatively small difference in wattage?
Many thanks in anticipation (sniff)
In most cases, it's "just" a matter of glueing back the voicecoil to the dome.They tend to come lose and the driver is left disabled or even completely silent.
Martin
Thanks Martin, I'll open it up and see, no evidence of detachment on the outside.
Any advice on the driver compatibility out there still appreciated though!
I have had both and the midrange unit is a 7.5cm dome and does look the same. It may well be same unit but whatever you do, don't throw away the old one!! If there are problems, these can be repaired. Besides which, it would be a shame to scrap the S120s as these are super speakers in their own right!
Peter
Another thing to look out for is that the midrange is not actually screwed into place - they're held in place by the plastic enclosure behind and rely on the foam gasket between the front of the driver and the back of the front panel to be held in place. This rots eventually (just like the foam surrounds of the bass units!) and the whole driver can then rattle in its mounting. The cure is to open them up and either make some new foam gaskets, or add some more padding behind the unit to push it against the front panel more firmly - this should stop it vibrating.
Big thanks to a certain Mr. T. Jarman for this repair tip - the issue has affected both his and my own MS150s in the last few months!
Oh, and one more thing - even if only one speaker is affected, repair both while you're at it as it'll only be a matter of time before the other one starts doing the same!
Massive thanks guys, there's hope when I assumed there would be none!!