Originally Posted by noah katz M Code,
"Any camera tripod works fine, these are available @ $20."
Thanks for the tip, I always assumed they were a lot more. Just checked, $14 at Walmart (online price).
The crucial point of the 635's Room EQ is to make consistent measurements, if the microphone is just held in the hand the results will vary significantly. The DSP needs consistent
frequency measurements, anything less and the final sonic output can/will suffer.
"We also have done some comparisons with the HK635 and Denon/Audessey, also we have ran some RTA full bandwidth sweeps with some very revealing, positive results for the 635."
I'd be most interested to see these results.
Have you not found that the 635 doesn't EQ to flat, at least in the bass?
The sweep plots show that the 635's Room EQ pulls down the low frequency peaks/resonances/nodes in the <125Hz region.. We have measured some low frequency peaks as high as 11dB, and the 635's Room EQ does a very commendable task of bring this down for a flatter, bass response. This significant peak will cover and can color the lower frequency spectrum very audibly. The 635 does have a slight
low frequency rolloff but then if one wants more bass he just tweak the level up/down as required. My opinion is that once the low bass frequencies are cleaned up the system sounds entirely different..
Almost like a veil has been lifted, the bass is tighter, cleaner and hits without any boominess....IMHO..
This is where the HK635's Room EQ really shines..
After attending Dr.Toole's class @ CEDIA last September he made the point continuously that the room can/will greatly influence a loudspeaker's performance
and the majority of problems are related to low frequencies..
The Near Field
measurements are primarily to calibrate the front sound stage (left, center, right) loudspeaker's performance capability for frequency response >125Hz. And then once this known then the Far Field
measurements are done from the listener's position for calculating the room effects, bass response and total system bandwidth.
Next... the TI DSP does its calculations and outputs an optimized