On Mon, 9 Feb 2004 20:48:46 -0500, "Arny Krueger"
wrote:

"dave weil" wrote in message

On Mon, 9 Feb 2004 19:40:00 -0500, "Arny Krueger"
wrote:

"Powell" wrote in message

"Matt Zach" wrote

I am looking at my first tube amp. It delivers 40 wpc
class A. I own an inefficient pair of A/D/S 810 speakers.
Will I have problems with this amp driving these speakers ?

The ADS L810 is a three-way acoustic-suspension
speaker (1981). This is an efficient 6 ohm speaker
(94 dB SPL/W/m) with a power rating of 100 watts,
200 watt peak. 40 watts of tube power should be
sufficient for a normal sized room unless you play
your music at excessively loud levels.

Perhaps if the room is small or very live.

You just don't know what you're talking about.

As if you're qualified to judge, Weil.

I've filled large rooms
(in terms of "normal sized" listening rooms - not necessarily ballroom
sized rooms) using 35 wpc amps quite easily.

So have I. I've even made rooms uncomfortably loud with them. However, I
used very high efficiency speakers.

So? I have very high efficiency speakers at the moment (far more
efficient than anything that you currently have, I think), but that's
a moot point. I was referring to filling a large room using speakers
of efficiency of less than 90 wpc/1 watt/12 ft driven by 35 wpc amps.

I can tell you that there was no problem with volume.

I'm thinking specifically of a JBL 01
system. And, I'm thinking of a large but totally unfurnished room.

Boy, I'll bet *that* sounded great (NOT!). Especially since you either
had to stand or sit on the floor, which might be *your* idea of a
"typicl listening room", but not mine.

If the L810s have 94 dB/w sensitivity, they would be exceptional as
most ADS products run in the more typical 88 to 91 dB/w range.

As well as exceptional for acoustic suspension designs.

Acoustic suspension is just a marketing term.

Hardly. It's a description of a very specific speaker design, as you
well know.

I can see where it would be a term that you would use, Weil.

I think Villchur probably used it as well.

Acoustic suspension has not that much to do with efficiency.

You really *must* be kidding.

Looks like a meltdown from Grosse Pointe.

That much is clear since you seem to be advocating high power amps for
the Quad ESLs as well.