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(dave mad on sounds) wrote:
in rec.audio.tech977193c4.0312020122.7654a52@posting .google.com,

: Having bought a pair of Rogers ls6a speakers last week I hooked them
: up to my 80 watt Plinius pre power amp and spent a great night
: listening to a variety of music reggae, rock , jazz. The next day I
: had an opportunity to test the ls6as at higher volumes. The music was
: loud with the amp between 70% and 80% load. I was listening to
: Leftfield "Leftism" and ON-U sound system. This music is quite bassy
: and electronic. I didn't hear any distortion but then at the same
: volume there was a small amount. I turned down the speakers with evry
: thing still seeming okay. When I returned to play music later there
: was a problem with one speaker. Even at moderate
: volume the bass is indistinct distorted and rattley. I transferred the
: bass driver from one cabinet to other and have isolated this as the
: problem. I have a couple of question as to how to proceed and also
: avoid the problem in the future.
: 1 Do you think I should send just the bass driver and ask that it be
: repaired by having the coil rewound (the likely problem) or the
: complete speakers and have them fully tested graphed and serviced.

Yes. Well, over to you after consultation but maybe just the faulty unit.
Best local contact (as a multiply pleased and happy customer) is
AXENT AUDIO PRODUCTS LTD: Loudspeaker & Audio Specialists
25 Portage Rd New Lynn Auck Ph (09)827-1220 Fax (09)826-0302
email: sales AT axent.co.nz (I've munged that!)

: 2 Should I be able to play this bassy electronic music at higher
: volumes or should I adopt a more conservative approach? I would be
: satisfied with using these speakers at moderate volumes but would like
: to be able to have an occasional party with some dance music. Is this
: unsuitable?

It's possible you drove them too hard, I suppose, but you should look into
everything ... perhaps it was already slightly compromised, maybe the
extended session has caused an overheated and swelling voicecoil ... does
the surround look intact? Cabinet sound and airtight (apart from port)?
Seems like just a single damaged bass driver from your description IMO.

I have an expat friend who has, I think, a kit version of these ... Axent
were able to help. [I wonder if the crossover is worth inspecting, too.]

: 3 The speakers came with stands and were on these when the problem
: occurred however these didn't have their spikes down as I hadn't set
: them up yet and because the floor is wooden. Could this create the
: issue the speaker stand where the damaged bass driver was did afford
: some movement due to unevenness? A possible cause?

I doubt it. Absolutely not. (Face, it, the driver is stuffed! ;=})

: I dearly love these speakers and would like suggestions as to how to
: maximize my listening pleasure.
:
: Dave Winter

Axent are THE specialists in NZ for speaker repair, test, development etc.
Just contact them and see what they say - I'm sure they handle Rogers.
Best of luck. I'm sure you'll be helped!

Ross Matheson
nz not zn

PS: They weren't these ones, were they? ;-)
http://tinyurl.com/xnsz