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Uncle Eric
02-02-2004, 08:19 PM
Dr Johnsons updated review of the Lexicon MC12B complete with latest upgrade is now up at Secrets. Makes for some interesting reading



http://www.hometheaterhifi.com/volume_11_1/lexicon-mc-12-aut (http://www.hometheaterhifi.com/volume_11_1/lexicon-mc-12-auto-room-correction-1-2004.html) o-room-correction-1-2004.html
Jeff
02-02-2004, 09:37 PM
Come on Eric, hes having a laugh isn't he? Surely he should have waited for the EQ version to be available.



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and with the utilization of ARC Minus 1, the sound stage is much more cohesive and focused.




He can't be much good with an SPL and tape measure. :lol:
Uncle Eric
02-02-2004, 09:42 PM
I know mate :D~:-D~:grin:

The sad thing is though, folks wanting the next upgrade, likely to be their EQ will have to have V3 with Mic's and pay up anyway. :(



Not me though. I still believe EQ is at it's most effective in the lower frequencies and I already have a cure for that in the form of a shiny big black box :lol: :clap:
Jeff
02-02-2004, 09:47 PM
I wonder what frequency limit they will pick for the EQ. I know what you mean about the DD, but EQ up to 300-500 Hz would be nice.
Squirrelecto
02-02-2004, 09:50 PM
Not me though. I still believe EQ is at it's most effective in the lower frequencies


You're not the only one.



Here's what THX think about 'room EQ solutions':



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It is our overwhelming experience that proper EQ of a system can be beneficial, but ONLY if the operator knows exactly what he's doing. Automated systems are mostly junk. Systems that provide EQ above 1K or so are mostly junk. Octave systems are junk. Lexicon and Meridian both have systems that are showing promise but we've not yet finished our evaluations. The Meridian system in particular has a prayer of improving the system rather than simply changing it.



Some rules of thumb follow:



Use EQ only as the last step in calibration. Good speakers, properly located in a good room with properly located seating, should all come first.

EQ in the bass region only. Usually &lt;200Hz

Parametric is best, but 12 th octave can be somewhat useful.

More than two sections of EQ per channel are usually too many.

Cut only no boost.

Steady state measurements such as RTA only reveal part of the problem and have only approximate correspondence to human perception.




http://www.audioholics.com/FAQs/THXp1.html
Uncle Eric
02-02-2004, 09:59 PM
EQ up to 300-500 Hz would be nice.


Hmmm maybe. I think the wavelengths are still a little on the short side in those regions to make any viable difference though.

The jury is out for that one, IMO anyway. Still wouldn't mind a listen though :nod:



*Edit. Whoops, didn't see SG's post :?~:-?~:???:
Madge
03-02-2004, 11:38 AM
I know mate :D~:-D~:grin:

The sad thing is though, folks wanting the next upgrade, likely to be their EQ will have to have V3 with Mic's and pay up anyway. :(


I had to explain that over at the Meridian forums, people were quite surprised that Lex had something better than Meridian planned.

Why they can't just lump the whole thing in as a package deal, instead of having a fairly pointless interim upgrade that's required for the next proper upgrade, I will never know :?~:-?~:???: