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post #1 of 4 Old 07-07-2013, 04:27 PM - Thread Starter
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post #2 of 4 Old 09-12-2013, 06:32 AM
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Just a few comments and questions. You did a nice job with those mains. They look good in the room with the finish. I would love to hear them.

So how do you think you did on the 4 goals of your system?

Does the rear shelf mounted sub take care of room modes for you? Does it rattle the shelf?

How are the Summer 2013 updates going?

Will you do a projector in your next room?

What kind of orchestral music do you listen to? And do you have it in multichannel when you listen or in 2 channel?
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post #3 of 4 Old 09-15-2013, 09:25 AM - Thread Starter
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Thanks for the comments. To answer your questions.
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Originally Posted by jedimastergrant View Post

So how do you think you did on the 4 goals of your system?

1) a spacious-but-not-smeared acoustic scene reproduction, with good-to-great image focus; spaciousness in a room like this basically requires expansion to multichannel, because the sidewalls are so far away. Going 7.1 helped more than I expected it would. So did going with the KEF R800ds bidirectional (mostly) out-of-phase surrounds instead of standard monopole surrounds. The R800ds have very wide and even coverage. There are probably equally good cheaper options, but I wanted to use concentric drivers all around, and the cabinet finish made me favor the R800ds over KEF's Q800ds.

2) sufficient dynamics to cleanly reproduce big orchestral pieces at the listening position; 100% met. I was a little surprised, considering my last system used 96dB/W/m mains, 92dB/W/m surrounds (5.1 channel) and an AVR that benched ~220W/8Ω/2ch and ~175W/8Ω/5ch. True, the ATI AT2007 is as powerful as a Class AB amp can be on a 15A circuit, but the speakers are almost 10dB less efficient from 150Hz up....

3) smooth spectral balance, especially in the upper bass Accomplished, with an assist from the sheer volume of the space. Truth be told, the setup is a bit slipshod. Calibrating multisubs is hard, and it's 90% of the way there just because of having multisubs and ARC. It will be better when the new sub cabinets get here, simply because I'll take more care in the setup. That's when I'll post measurements smile.gif

4) minimal aesthetic intrusion without building anything into the walls, About as well as I could, given the physical size of the stuff. Will be better when the M-Design pie-wedge leaves the corner, and is replaced with a rectangular sub that matches the mains and the TV cabinet.
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Does the rear shelf mounted sub take care of room modes for you? Does it rattle the shelf?

It does help with the floor-ceiling mode, but it might be optional. I'm going to try without it when the subs come in.

I have the sub on four Sorbothane hemispheres of the right durometer and size for the sub's mass. They work surprisingly well, though they were expensive. Also, the level of the sub is very very low. You can barely hear it working when you put your ear up to it.
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How are the Summer 2013 updates going?

Felt: bought a roll from McMaster-Carr. Haven't had time to do anything with it. Project before that is to build a polar measurement turntable.

Subs: Have at the NS18 for a few years, but my DIY cabinet is not acceptable for display in the front corner of our living room. Found the right artisan, deposit sent. If I'm lucky, they'll be here in October. I had a surprising number of issues (things not done according to spec, issues with finish quality that required them to pick them up and refinish, oh and they were also six months late from a promised two-month turnaround) with the local custom furniture builder who built my mains and flanking subs. So I wasn't about to give them business for the subs. I found someone with a good reputation, though, and though I'd rather have worked with someone local second best is someone in the same time zone known for quality speaker cabinets. (I've had good experiences with remote collaboration in the past, and if Nathan Funk were in the SE USA he would've gotten the business for all my cabinets if he wanted it. But the cabinets I commissioned from him build for my old Tannoys were much smaller and lighter than these cabs.)
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Will you do a projector in your next room?

Never say never, but ultimately I don't care much about video so the only reason I'd do a projector is if the new laser ones are bright enough to use in a room with lots of natural light - I'm not into living in a cave - AND I can improve my mains placement by doing so.
Quote:
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What kind of orchestral music do you listen to? And do you have it in multichannel when you listen or in 2 channel?

Big orchestral stuff mostly: Mahler, Shostakovich, Sibelius, Bruckner, that sort of stuff. Also, does Radiohead count as "classical," yet? smile.gif

Except for the 3-channel Mercury Living Presence SACDs, which my MRX 300 won't expand, I generally expand everything to 7-channel, with DPL2 Music being my default choice. AnthemLogic doesn't do as good a job with the center channel, and the DTS offering just doesn't seem as natural as DPL2.

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post #4 of 4 Old 09-15-2013, 08:20 PM
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Very slick, DS. Always been a fan of your collection of gear.

Cute kitchen, btw. smile.gif

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