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Search: Posts Made By: kbarnes701
Forum: Receivers, Amps, and Processors   07-28-2015, 10:13 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
Thanks for the clarification, Flavio. Much...

Thanks for the clarification, Flavio. Much appreciated - and a useful tip!
Forum: Receivers, Amps, and Processors   07-28-2015, 07:58 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
Hi Flavio, thanks for this info. Can you please...

Hi Flavio, thanks for this info. Can you please elaborate on "the distance in milliseconds between the "before" and "after" impulses shown in the Dirac graphs"? A screenshot would be very useful. The...
Forum: Receivers, Amps, and Processors   07-28-2015, 02:25 AM
Replies: 617
Views: 15,576
Posted By kbarnes701
Very nice. A bit big for my room but a great...

Very nice. A bit big for my room but a great alternative to the oft-suggested Tannoy DCs for sure.
Forum: Receivers, Amps, and Processors   07-28-2015, 02:17 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
It depends who you ask ;) I haven’t seem the...

It depends who you ask ;) I haven’t seem the latency reported as being as long as 22ms. 14-16ms is the area it is usually given as. Measuring is the only way to know for sure. Or one can run Audyssey...
Forum: Receivers, Amps, and Processors   07-28-2015, 01:47 AM
Replies: 12,914
Views: 762,242
Posted By kbarnes701
As bweissman has said, I mean power cables. If...

As bweissman has said, I mean power cables. If you run signal cables and power cables parallel with each other then the signal cabe can pick up interference, noise, hum etc from the power cable. XLR...
Forum: Receivers, Amps, and Processors   07-27-2015, 01:15 PM
Replies: 617
Views: 15,576
Posted By kbarnes701
The dispersion characteristics of the chosen...

The dispersion characteristics of the chosen speaker is a separate issue to whether they are direct radiators or dipoles. Dolby recommend direct radiators with a wide dispersion pattern (like the...
Forum: Receivers, Amps, and Processors   07-27-2015, 11:25 AM
Replies: 2,372
Views: 86,705
Posted By kbarnes701
You answered your own question ;)

You answered your own question ;)
Forum: Receivers, Amps, and Processors   07-27-2015, 11:11 AM
Replies: 617
Views: 15,576
Posted By kbarnes701
When you heard it, was it in a properly setup...

When you heard it, was it in a properly setup room?



To conceal the wires you mean? I think raceway would be a simpler solution.




It is? Why isn't their answer to someone with concrete...
Forum: Receivers, Amps, and Processors   07-27-2015, 09:54 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
I found it a well-written paper, explaining...

I found it a well-written paper, explaining things in a way that most would be able to understand, but I had to read a lot of twice or even three times before I fully grasped everything. But this...
Forum: Receivers, Amps, and Processors   07-27-2015, 09:49 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
Ah right - yes that is correct. The AVR can be...

Ah right - yes that is correct. The AVR can be switched off during the calibration if you wish as it plays no part. After the calibration, it is advised to switch the AVR on though <g>.

And, as...
Forum: Receivers, Amps, and Processors   07-27-2015, 09:11 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
In the non-corrected channels you need to account...

In the non-corrected channels you need to account for the physical distance + the latency of the 88A, which is about 16 ms according to miniDSP. I used my old Audyssey distance setting and added the...
Forum: Receivers, Amps, and Processors   07-27-2015, 08:42 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
I'd forgotten that limitation in the XMC-1. Yes...

I'd forgotten that limitation in the XMC-1. Yes it is very useful to be able to compare different curves at the press of a button. And, of course, to be able to store different calibrations for...
Forum: Receivers, Amps, and Processors   07-27-2015, 08:36 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
Dirac does indeed correct in the time domain....

Dirac does indeed correct in the time domain. This is one of its standout features when compared with lesser forms of electronic room correction.

See if this paper helps shed some light:
...
Forum: Receivers, Amps, and Processors   07-27-2015, 08:33 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
Ah so. IDK how similar the Dirac software for the...

Ah so. IDK how similar the Dirac software for the XMC-1 is but I am sure you will find it pretty straightforward switching to the 88A.
Forum: Receivers, Amps, and Processors   07-27-2015, 08:19 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
Atmos/DSU will make a difference though ;)

Atmos/DSU will make a difference though ;)
Forum: Receivers, Amps, and Processors   07-27-2015, 07:59 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
AVR choice is OT in this thread, but briefly,...

AVR choice is OT in this thread, but briefly, there are numerous good AVRs from Denon, Marantz, Yamaha etc. AVRs are usually cheaper than their prepro equivalents so the 'wasted money on amps'...
Forum: Receivers, Amps, and Processors   07-27-2015, 07:56 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
Yes, good point. Or it will spark a series of...

Yes, good point. Or it will spark a series of "but the inline help says..." type queries going forward ad infinitum. I have become convinced, following the discussion, that either method is as good...
Forum: Receivers, Amps, and Processors   07-27-2015, 07:54 AM
Replies: 12,914
Views: 762,242
Posted By kbarnes701
It's important to understand that there are no...

It's important to understand that there are no sonic differences between XLR and RCA connectors.

XLR are better at noise rejection, so if you have long cable runs and the signal and mains cables...
Forum: Receivers, Amps, and Processors   07-27-2015, 06:24 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
Yep. I probably have a psychological rather than...

Yep. I probably have a psychological rather than a logical need to use the higher level sweeps. I take Matt's point fully on board - that once the signal is at an acceptable level, raising it higher...
Forum: Receivers, Amps, and Processors   07-27-2015, 06:20 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
I hear you Matt :) Bottom line is that it...

I hear you Matt :) Bottom line is that it doesn't appear to be all that much of an issue so long as a 'respectable' SNR is achieved, which both you and I are doing, albeit with different levels.
Forum: Receivers, Amps, and Processors   07-27-2015, 06:18 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
Odd isn't it? When I have changed the individual...

Odd isn't it? When I have changed the individual channel sliders, my levels have been all over the place. It was so obvious the first time that I didn't need to get the SPL meter out to check it -...
Forum: Receivers, Amps, and Processors   07-27-2015, 06:15 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
So long as it delivers a good result, it's good....

So long as it delivers a good result, it's good. And Jerry's tests show that he feels there is no difference whichever way you do it, so that is good too. Personally, I'm going to carry on doing it...
Forum: Receivers, Amps, and Processors   07-27-2015, 04:42 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
But, within reason, the higher the SNR the...

But, within reason, the higher the SNR the better, no? When I measure with REW I aim for about 85-90dB for the test tone, which puts me about 40dB above the noise floor in my room. Why would I want...
Forum: Receivers, Amps, and Processors   07-27-2015, 03:13 AM
Replies: 5,523
Views: 153,317
Posted By kbarnes701
I always thought that when doing measurements the...

I always thought that when doing measurements the higher the SPL of the test tones, the better (with the caveat about damaging speakers or hearing etc)? Indeed, we were advised in the REW thread to...
Forum: Receivers, Amps, and Processors   07-27-2015, 02:54 AM
Replies: 617
Views: 15,576
Posted By kbarnes701
Dolby have said more than once that it is "hard...

Dolby have said more than once that it is "hard to get Atmos wrong" and there is a lot of flexibility wrt to speaker placement, number of speakers used, virtual overhead speakers, physical overhead...
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