Hello Gene, we always trust you as we know you have a contact in their technical group, in additional to of course their marketing team such as Phil Jones at Masimo, formally Sound United, and the fact that you are an EE with many years in audio/video electronics certainly helps reinforcing your credibility/authority in the technical matters related to audio/video. There is no need for you to get confirmation from the engineering group in D+M in this case, but thank you very much for doing it regardless, it just show how open minded you are, and that's reassuring for those who come to this site for answers to technical enquiries such as this analog bypass thing.
Now I do have a question for you, one of the reasons that I found often cited on forums, including AVSF and ASR, for people to doubt the D+M's analog bypass feature is, they wonder why then when put in direct mode, using analog inputs, they could see that limited bass management, that is, speaker small, distances, crossovers still seem to be in effect, yet Audyssey would, expectedly, by disabled.
I questioned him on that with my follow up:
and got the following response:
I then went back to your review on the AVR-5805 because you said something there, and found your comments as follow, under the preamp analysis section:
Denon AVR-5805 AV Receiver Review | Audioholics
So, my question is, are the current D+M models implementing the same technique and that's the reason why the basic bass management is preserved even in direct mode when using the stereo analog inputs? Could you get an answer from your contact in engineering? I don't know how you would frame your question to get them to give you the answer, but they should know that this unusual feature of preserving some bass management in direct mode/analog input is confusing even the technically savvy D+M users!
By the way, Gene, every time I read your review on the AVR-5800 I couldn't help but say to myself, this is not a review, it is a book on the most expensive and heaviest Denon AVR, or AVR ever made, including the Yamaha RX-Z9, complete with editorial, notes, bench test results and analysis into some important technical details.
I have to ask, how long did it take you to complete the review of the AVR-5805. I couldn't believe you even included an Q&A session with Chris Kyriakakis. That also reveal another internet hearsay that claimed Audyssey only deal with magnitude correction, below is that part of the Q&A:
Audioholics: How is this system different than others on the market that typically use a variable PEQ?
Chris: There are two fundamental differences:
(i) MultEQ is not a parametric method that uses IIR filters for a number of bands. Instead it uses FIR filters. The advantage is that this allows both time and frequency domain correction, whereas IIR-based PEQ methods can only correct the magnitude response
For those who don't want to pay for the DL licenses yet, should feel a little better, knowing that Audyssey does deal with the time domain/impulse response, since day 1!!
In my opinion, all serious audioholics, at least those interested in objective measurements, should read the AVR-5805 review, at least twice because there are too many details that require serious thinking to understand and interpret the test results, even with Gene's helpful explanation notes.
I have never seen such a detailed review by anyone else, not JA, not Amir.
Lastly, given your contribution to D+M over the years, why not ask them for a AVR-A1H and do what you did with the AVR-5805, that is, if you can still afford to spend so much to do such a review. If that happens, you probably should include an interview with Dirac Live's Dr. Johansson, not Audyssey this time.
Thanks again for such an incredible review/analysis.
So, let me post the link again:
It is a 1 to 2 hours reading though, or longer, depending on how technically oriented the reader is.
Denon AVR-5805 AV Receiver Review | Audioholics
