Magico Q7 . . . wow

From Positive Feedback Issue 59:
This year they introduced their all-out realization of that design paradigm, the $165,000 Q7. Every driver of this beautifully accomplished four-way, five-driver, loudspeaker has been designed from the ground up, resulting in a system with an efficiency of 94dB.

""""" 04-05-12: Stereotaipei
You cannot get driver with a 10dB higher efficiency than the Q5 without significant changes of design (in particular on the magnet).""""""""""

actualy you can not get driver with with 10db diferencies (assuming one is not 4inch midrange and other 18inch PA woofer) - its against law of acoustical physic. the spekakers,how ever can be easily made for diferent sensitivity maximum what is posible for same caliber driver 8-12inch) is 5db and it definatley will be in upper octaves (higher force means more midrange not all FR equally is gained) which is not important for low frequencies anyway.

not sure I understand your message. Just go on any speaker driver manufacturer website, you will find a very broad range of sensitivity of drivers from 80 to 98dB...
Q5 and Q7 use similar configurations, but different drivers, with different sensitivity.

Suggest you read the soundstageglobal article:
Specifically, according to Tammam, the Q5 utilizes N38- and N42-grade neodymium in its drivers' motor systems, whereas the Q7 uses the N48 and N52 grades. These magnets allow for "higher energy storage within the material," according to Tammam, and this has allowed Magico to build motor systems that are far more powerful than any the company had developed in the past. Tammam said the magnet structures of the 10" and 12" drivers in the Q7 are so powerful that handling them requires great care, as the attractive force between two of the drivers' magnets would literally crush someone's hand if it was unfortunate enough to come between them. The point here is that these new ultra-powerful magnets have allowed Magico to design and build drivers so efficient that the overall sensitivity of the Q7 is rated at 94dB, which is quite high for a sealed-box design.

Btw.. I wait to see if really they are 94dB, would be outstanding for a sealed box.

I did not see Magico claiming a difference of 10db in drivers sensitivity. The newer Qs are, and that is a fact at least on the Q3 that was measured by PM in the UK, much more efficient than the older products, including the Q5.

I stand partially corrected regarding the driver design. Stronger magnets will, indeed, increase the efficiency. But more than likely, it's just the woofers that make up that difference.
Tweeters that produce 94dB is easy, especially with neodymium. The same with midrange.
Woofers are little more difficult. More than likely, the original tweeters and midrange are now able to perform without being attenuated to match the woofers in the Q5.
This is a good thing, no matter how you look at it. Removing or reducing resistor value does help with dynamics.
Higher spl does usually equate with greater dynamics, all else being equal.
So I'll split the difference. I still think the tweets and midrange are the same. Bigger and badder woofer design now help in more ways than size alone.

As far as my musical tastes go, it is literally everything. Which is why none of these speakers find they way into my home on a permanent basis. It's difficult, but I require my speaker to perform well on all types of music.