After spending a few weeks fiddling with the latest Audyssey with an the Onkyo NR5008, I would like to note a few observations (only applies to 2 channel listening).
Note:
My front wall (corners included) and side walls (first reflection point only) are well treated while about 25% of my back wall (half of one corner is treated) is treated. Finally, my ceiling is bare (sadly). All treatments are bass traps.
Here's my setup:
Accuphase DP57 -> Onkyo NR5008 -> Adam S3As and Velodyne DLS-5000R
Observations:
1) After every calibration by Audyssey, I would measure the in room response with REW and RS SPL meter to see the FR from 20-800Hz. Audyssey always roll off my bass by about 5db so I always have to manually adjust my bass trim level after calibration to compensate for the roll off.
2) Audyssey successfully eliminated some bass peaks while the nulls were brought up by a few DBs which brought out more clarity in the bass region. I also noticed a minor improvement on soundstage depth.
3) This is where I find Audyssey unacceptable. On quite a few recordings with Audyssey engaged, I heard crackles (distortion) on my speakers on certain parts of the music which mostly happened on highs. I'm surprised by this since I know the Audyssey reference curve rolls off the highs.
People can chime in on their Audyssey experience here!
EDIT: I found the culprit of the distortion. It seems the additional AD conversion led to the high end distortion. Once I kept everything in the digital domain, the crackles were gone. However, I much prefer the sound signature of my Accuphase DAC which the Onkyo in contrast sounds sterile, dead, and lifeless. This sound signature of the Accuphase carried over with Audyssey engaged but the occasional high end distortions are introduced.
Note:
My front wall (corners included) and side walls (first reflection point only) are well treated while about 25% of my back wall (half of one corner is treated) is treated. Finally, my ceiling is bare (sadly). All treatments are bass traps.
Here's my setup:
Accuphase DP57 -> Onkyo NR5008 -> Adam S3As and Velodyne DLS-5000R
Observations:
1) After every calibration by Audyssey, I would measure the in room response with REW and RS SPL meter to see the FR from 20-800Hz. Audyssey always roll off my bass by about 5db so I always have to manually adjust my bass trim level after calibration to compensate for the roll off.
2) Audyssey successfully eliminated some bass peaks while the nulls were brought up by a few DBs which brought out more clarity in the bass region. I also noticed a minor improvement on soundstage depth.
3) This is where I find Audyssey unacceptable. On quite a few recordings with Audyssey engaged, I heard crackles (distortion) on my speakers on certain parts of the music which mostly happened on highs. I'm surprised by this since I know the Audyssey reference curve rolls off the highs.
People can chime in on their Audyssey experience here!
EDIT: I found the culprit of the distortion. It seems the additional AD conversion led to the high end distortion. Once I kept everything in the digital domain, the crackles were gone. However, I much prefer the sound signature of my Accuphase DAC which the Onkyo in contrast sounds sterile, dead, and lifeless. This sound signature of the Accuphase carried over with Audyssey engaged but the occasional high end distortions are introduced.
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