Speaker Distortion or Room Interaction ?

It would stand to reason that you have very high standards given your equipment list and the complexity of the aforementioned music ... I appreciate that. Would it be possible to build yourself a custom designed listening room? I get the feeling your standards may require the freedom to eliminate unwanted resonance at the expense of esthetics. This usually results in an angry woman. $40K-$60K on your own little oasis might be a bargain in the long run. You can do it a lot cheaper if you get involved yourself or maybe just renovate a large bedroom?

It might be a pain but find a room to play with and move your gear in for a weekend to see if the problem is improved upon. I did it with a bedroom once ... I was surprised how much different my measly system sounded. Enough so I am considering a listening room instead of a garage. I live for the day I have my own soundproof space. A windowless cave for the sake of music ...

Ahhhhh.

for the $$$ involved with an upgrade, i'd like to get alot closer to that ideal. or do you reach the point i have where you have speakers with 20-20 freq. response and incredible musicality, and just call it a day, forgoing the ability to re-create mahler #8 or handel's messiah

Ahhhh, Mahler 8 (Horenstein perhaps?). Forget it. UNLESS, maybe: a) you dish out giga$ for exquisitely designed and probably large, sensitive (~95db spl 1W/1m) commercial spkrs OR b)you fabricate your own (preferably fm a kit).

Otherwise, you'll not have the sense of scale, you'll hear 2-3 cellos at best, ~10 people in the chorus, about 6 violins, the right side of the orch may be off phase with the left side (i.e. the "upper bass" will lag vs the mids), add lib...

Nothing wrong with all the above; it's just difficult to reproduce a large orchestra -- let alone a huge choir added into the equation. Too much energy, too many instruments, too much dynamic content...
Just think about it: you're asking 4 medium-sized units + a tweet/side to reproduce 100-+500 musicians (Mahler 8).

Re yr original question: it reads (sounds) like you're overdriving yr spkrs. I.e. the spkrs are distorting. Just turn down the volume.

The levinson amps are very good...they are not powerhouse amps though...300 watts@4ohms. Classical music with a lot of dynamic mood swings and deep bass could cause them to clip long before the Eggleston speakers go into distortation.

You could add a sub or subs. This will make life much more easy for the Levinsons...an increase in midrange quality will also be in the results.

The Egglestons should mate very well with subs...20hz will not be a problem for the sub.

Dave

French Fries,

You have world class gear without a doubt.

And yet you want more, your goal, if I understood correctly, is large scale works at realistic volume levels with low levels of distortion, no smearing or harshness.

Mmm...I can't believe those Eggleston's cannot deliver this. Perhaps one of your drivers is damaged? Perhaps you do not feel it is "party loud" because the sound is so clean? Are the walls and floors of your room too reflective (an eq to tone down the 4 to 8 Khz range might help if you cannot allow for more room treatments)

Have you also considered that you may be playing so loud as to induce intermodulation distortion in your ears? Concerts at extreme SPL levels sound bad/distorted to the ears even when the music is clean (where you are seated has a lot to do with whether you get blasted or not).

If you are certain that none of the above is the source of your troubles at high levels...then perhaps you should consider auditioning ATC or similar speakers. ATC are known for their ability to produce huge dynamics at extremely high SPL levels (similar to live music levels and possibly closer to your described goal). The ATC SCM 150ASL can produce SPL's of 117 db continuously with headroom of another 10 db or so, and all at a THD of a fraction of one percent. This is astoundingly loud for a single cabinet freestanding.

I suspect a high end pair of ATC's (or Meyer's) might be an improvement for you, in the particular qualities you seek, with one caveat: your system is already very very impressive!

I'm not familiar with your speakers, but I have some power hungry Aerial 10t's. I found a very large improvement by going to multiple amps. First, 2 Classe SS amps at 300watts. Each amp was vertically wired so each served a channel. Now I'm using a pair of Rogue monoblocks on the mids and highs, and 1 Classe for the woofers. I doubt any of them ever struggle even at good volumes. But it is now quite possible to overplay my listening room. ( 21 x 15 x 8 ) Even after installing 6 floor to ceiling bass traps and various absorption panels in the first reflection points.

But since this is your living room more amps and treatments may not be possible for other obvious reasons.