Originally Posted by rdeyoung
I disagree in my opinion
I purchased 3 top of the line units from Denon, Marantz and Pioneer (to compare and see which one I liked better) and found that I did not like the results from both the Denon and the Marantz, especially after running the Audyssey setup multiple times. It was like all the dynamic range and soundstage went out the window.
The Pioneer MCACC took me one time to set up and I thought it sounded great. But it could also be that im used to the Pioneer Elite sound.
Denon (and likely Marantz - since they have basically become the same thing over the years, though I can't say for absolute certain) - may have automatically, or accidentally turned on such nonsense as Dynamic Volume, Late Night mode, LFC, etc - all loudness leveling functions that inexplicably keep turning on, with my Denon X7200WA and my Denon X4520CI before that. I run Audyssey fairly regularly because I'm also futzing with my room, changing speakers, or trying new things - and I've determined those things turn on in association with running audyssey, I THINK! Anyway - us enthusiasts with dedicated spaces want those settings OFF! And if you had any of that volume leveling stuff on - that explains your thoughts.
No EQ to No EQ --- with like distances (delays), with objectively measured/verified SPL levels set for each channel with a third party mic, the Denon/Maratanz and Pioneer receivers SHOULD
sound no different to Human ears, and measure no different to equipment.
Enter EQ functions, speaker placements, rooms, treatments, mic placements/count of measuring positions, mic manufacturing variances, etc and years between testing an NOBODY can compare this unit they USED to have compared to this unit they have now.
Even in a controlled study/experiment where the ONLY variable was the AVR and associated bundled house brand Mic that came with the AVR -- when you run AutoEQ you can get absolutely ridiculous variances on what reference truly is (20dB ridiculous at the same supposed volume setting) --- which was the outcome of our carefully crafted AVR Auto EQ testing day. Sickening really.
We've been thinking about repeating this process and seeing if improvements have been made in the AutoEQ realm in the last 4-5 years. I've risked going off topic, but bringing it back squarely to topic........
There is no "reference" created by these various AutoEQ systems...so, maybe unification of the majority of consumer brand AutoEQ into "one type" might be a positive outcome for the hobbiest, in that perhaps we could potentially actually see more of a like "reference" shared between our experiences.
Post 199 for full read -
quip excerpt here:
So what's the deal? Why was it madness?
Well - here are the post calibration frequency responses from each entry. No funny business, just absurdity. The helpers and I set the mic in the same standardized positions for each system (unless specific places were actually required, IE Anthem, DIRAC, Yamaha) and the starting position for the initial calibration was the exact same spot for ever processor. Stitch1 loaned a drum kit with a bunch of high hat stands (used as mic stands) - to ensure our mic capture positions weren't different from processor to processor. In theory, after calibration each processor should be close to the same SPL at least, if not generally reasonably close to a flatter frequency plot - RIGHT?? I mean that's the point of these systems -- RIGHT? To get the AVRs to a reference volume and try to flatten frequency response while doing so - so that each user's system in different rooms and different speaker setups has a similar audio experience?!?!?!
Well, with eight different systems here is what was captured by omnimic for each as post calibration results. We followed instructions to let each auto processor optimize the room. The ONLY change we allowed post calibration was setting speakers to small and crossover to 80hz when the processor/AVR allowed. To capture the post calibration frequency response plots shown here I simply turned each AVR to -12dB on the main volume knob and played track 2 of the omnimic disk from the HTPC to the processor. The results are ridiculous. But that is the tested state of variance in these processors.