I'm digusted, Mordaunt Short,cheapskates

[iUSERTLO72p]

Hi, don't often enter here, usually Subwoofer Forum. But, I got excited about some bass I was getting from my mains, (my sub being down), I cranked up the bass hit the Loudness, and one speaker started distorting. Investigation found a vibrating cab, the back panel, I thought, was plastic covered, NOT! I removed the woofer and the stuffing and found my Mordaunt Short MS 40's look like this...
[img=http://img26.picoodle.com/img/img26/4/1/27/mikee55/t_27jan08001m_edeeee3.jpg]

Is this good practise in manufacturing of cabinets. Surely the back panel should be Dense?

iUSERTLO72p

[kaan]

I wouldn't call it good practise, but it is very normal I'm afraid.

[MaVo]

i would call this a good reason to DIY

[justblair]

Using plastic mouldings was fairly usual at around the time of the MS40. I have a set of mission 760i and the front baffle was of similar construction.

They are still half decent speakers for their price despite it. but a more upmarket product would have a more solid construction.

[martin clark]

Contraversial view: you got pretty much what you paid for; why be surprised? Price in the shops is 6-8x the manufacturing cost, and you have to look at the dealers for most of the mark-up. That's just the way it is.

So yes, maybe it's not what you were expecting - but is it so bad? A rigid moulding probably has less stored energy than a cheap glued MDF panel... and the excellent Epos ES11 and ES14 were built this way too; it's not an absolute-quality issue if handled well.

But if you want to ratte the house on the same budget - go DIY.

[bigwill]

Hmmm I wonder what my MS 902s are like inside

[c2cthomas]

Having a look inside of most "store bought" speakers will have pretty the same results I'm afraid. Disappointing isn't it.

[bigwill]

For the record I've seen inside Kef 105.2s, electrolytics, thin wires and iron core inductors galore!

[limono]

[QUOTE]Originally posted by iUSERTLO72p
[B]Hi, don't often enter here, usually Subwoofer Forum. But, I got excited about some bass I was getting from my mains, (my sub being down), I cranked up the bass hit the Loudness, and one speaker started distorting.




This is not the way Loudness should be used .I guess your amp was distorting like a MOFO too. I wouldn't do that with "real " speakers. MS40i was the worst POS I owned -especially in the bass area. Regards, L

[planet10]

Originally posted by martin clark
So yes, maybe it's not what you were expecting - but is it so bad? A rigid moulding probably has less stored energy than a cheap glued MDF panel...

Executed well, such a panel construction should exceed the capabilities of any MDF panel. A huge cost to tool up for it, but if you can amortise it over a huge number of speakers. The B&W DM302 had the best execution of this kind of concept that i have seen.

dave