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Thanks for the correction. I updated the decoder according to your information.

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Do you mean Power Surge Protectors such that this one are ineffective in your case ? Note that to be effective, ALL interconnected components, including audio-sources, have to be protected, AND that good earth grounding must be provided at surge protector level.

Most companies offering Purifi 1ET400A amplifiers, built in Denmark, are in Europe, so you will have to pay for higher shipment and taxes than from the States. I bought mine from Audiophonics, a French company, and am very satisfied. Note that they also provide a smaller form factor, slightly...

I also considered those 2 amplifiers before finally settling for the Purifi 1ET400A with my Summit X. Considering the Benchmark AHB2 is 2,6 times as expensive as the Purifi 1ET400A (3499€ vs 1349€), saving so much money just for a "small difference" seems a good bargain. Note that the Class D...

The schematics provided by Brad are clearly for the signal path only. Your question was about the AC power supply to polarize the panels. Since the the polarization eats very little power, I would suggest a low power auto-transformer 230vac -> 110Vac would fit the bill. Something like this...

It appears ML became aware of their frailty, because the replacement item I got direct from them had no more transverse hole, which obviously was the cause of this built-in frailty. So now you will need a Y 45° plug like this one at the end of your loudspeaker cables. But I would recommend, even...

Much more expensive that the 2x400W PURIFI 1ET400A class D amplifier, there is also the highly rated Benchmark AHB2.

Hello Necrosuit, You seem to be into very esoteric amplifiers. I may not have "golden ears" and thus have never been able to hear much difference between amplifiers of the same wattage when db output levels are closely matched. I prefer to put my money into loudspeakers, where quality...

I just bought a second hand pair of Summit X, and when connecting the loudspeaker cable at the back, one of the sockets broke. I am not body-built and quite used to cables and loudspeakers handling, so I am wondering if the original sockets are especially fragile (they DO look fragile) and if...

Well, I bought in February a pair of Summit X on eBay, delivered from Germany to France for 6000€. They work great. Compared to the second hand prices in the States, I thought this was a fair price. But the second hand market for Martin Logans in Europe is small, the market for a specific Martin...

Thanks again for the PDF copy of the Summit Service Manual. I am wondering if the copy you posted is the FULL Service Manual, or just limited to the section concerning mostly with panels removal. The total number of pages is only 26, and I was wondering if there was more about the "Back Plate...

I saw it and dowloaded it, thanks, but are you sure the same Service Manual applies both for Summit and Summit X ? The Summit X has features (Vojtko active crossover) which do not exists in Summit.

Martin Logan web site offers only the User Manuals for download. I am looking for the Summit X Service manual. Has anybody a download link ?

As @Gordon Gray explained, the external amplifier you use should have VERY little impact on the bass output quality, since booth woofers are self amplified (2x B&O ICEpower). Makes one wonder why the bi-cabling wiring posts on the Summit and Summit X, since clearly there cannot be any benefit...

AFAIU the Summit and Summit X are very different beasts. Only the Summit X has the VOJTKO active crossover, which is supposed to provide smoother integration with the 2 x 10" self powered woofers.

You may be interested by Martin Logan Product Museum [1983-2017] / Timeline. It does not offer direct features comparison, but once you have isolated the models you are interested in, comparison is straightforward.

That is exactly what I was trying to underline, and also that from my own experience I like digital amplifiers, which have surprisingly low prices with high power and sturdy stability when this property is critical for "difficult" speakers such as M/L. Beyond that, anybody can make his own mind...

Until your post, I was a bit disappointed not to generate more feedback from my "blanket statement" about "Multiple studies have shown that amplifiers of the same power, with the caveat of being stable on complex low impedance loads, all sound the same." ;) All what you say is true about...

You should look at digital amplifiers, like for instance Hypex NC1200. They have a very low output impedance (2x1200W(2Ω)) which is essential to proper driving of ML's. And they do not cost as much as "exotic high end class A/B amplifiers". Multiple studies have shown that amplifiers of the same...