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Sound to me like your Audyssey mic could be 'cactus" in the highs and Audyessy's trying to make up for it, try another mic, and see how ya go. http://www.slang-dictionary.org/australian-slang/jimmy_cap/Cactus Cheers George

I remember the earlier Summits having the option of the bass amps being driven from the preamp or from the host amp (one that's doing the esl). We had a big tube doing the esl and found the bass far tighter when the Summits bass amp was getting the signal from the preamp rather than the big...

Every time the house get vacuumed so does the speakers as I do it. Tip they must be totally discharged (unplugged) for a day or so before doing it. As Jo Fo I also use a Dyson with the small fine haired 5" wide attachment, really sucks hard and get's everything out, you can see the mylar...

I'm up there too, but I miss the top end extension and sparkle with tubes on ML esl's, because of the wicked <1ohm impedance. Cheers George

"it sounded good until the part when the cymbals came crashing in and it was really harsh," This sentence of the OP, tells bit. As the problem seems to be up very high where the ML's can present a load of 1ohm to the amp, I would seriously be looking in that area of the amp, if it can remain...

Summits/harshness These two words don't go together, look elsewhere for your problem. Unless they've got a fault, but if their charging and not down on spl, it shouldn't be them Cheers George

I have a pair of Monolith 3's and have amps that can drive them well no problems at all. A friend gave me some Zero Autoformers as a contra deal, so I hooked them up before I sold them to see what they do, the sound took a hit for the worse. What I can say to this if your amp is not a good...

On ML Monnoliths III. Inside 1/3 for toe in, 2/3 down for tilt back using flashlight on head alignment, (the 2/3 down gives me hight to the sound stage as well) (wife says you look dumb, do you really want to be a miner that bad) Cheers George

Your ML Summit's while a very good speaker have a very steep falling impedance in the top end, even though the bass has it's own amp, the impedance comes down to around 1ohm up high, and also has a nasty -65 degree phase angel with 3ohms between 3khz to 4khz. This is not a kind load to Class...

I have yet to come to grips with Class D in the upper mids and highs, in the future when the switching frequency has been developed to be much higher, then the filters to filter them out can be set well away from the 20khz audio band without effecting phase and or rolloffs at that frequency or...

Ditto on the room placement of any speaker. Soon as I saw that alcove, I straight away said bass problems, let alone imaging and sound stage as well. Beside that, the Summits are the only ones I would replace my re-furbished Monolith III's for, and that is a step down (the Neoliths are just a...

They are not cheap, that money is better served towards a purchase of the right poweramp to be able to drive the speaker or easier to drive speaker, it is an expensive band-aid fix. And I meant generally the "IDEA" of it is dumb. I'm sorry if you thought I meant you. Cheers George

You asked, I gave, with reasons. Cheers George

Yes I believe it would to all models maybe, as Jim Powers sent me these about 4 years ago. He said at the time they were the new aluminium vapour deposited ones that are very clear and see through. Cheers George Yes this a bit nutz, especially with a tube amp, why drive one output...

I have ML Monolith III, with the new aluminium vapour deposited clear coating, similar to the Neolith. I drove the ESL section of them with DHT SE 805 massive monoblocks 50w each with very very good 4ohm output transformers. The autoformer did allow me to drive them better, but a good 100w S/S...

If your amp is not a good match for your speakers, an autoformer will make it work, but it's a band-aid fix. You should really get the right amp for them or change the speakers so the amp can drive them properly. Cheers George

There are some that would rather look at their glitzy equipment rather than the artists that are playing. My setup is similar to yours, I found when the equipment was between the speakers the sound stage and depth suffered a great deal. Now it's all off to the side opposite my right shoulder...

Looking at this impedance/phase angle graph, there are heavy EPDR loads at 250hz and again at 3.75khz these types of loads would better suit amps with no output transformers. Solid state with good current delivery (eg: almost doubling their wattage down to 2ohms) eg earlier Krells an such with...

Hi, haven't been here for a while. As to the Monolith 3 woofer, I tracked down the Eminence spec sheet for it, as it was made especially for ML. here it is. I didn't like them much (one note bass), I much much prefer the ACI SV12's I replaced them with (attached below PDF), plus a few mods to...

Hi Jon if your reading this. This looks interesting, the new Neolith has a panel the same size as the Monolith at 22'X48" obviously used the same stator panels, it just has more segments 14 horizontal segments instead of 9. Looks like maybe anyone with the Monolith could have an "improved...