21-Apr-2016, 18:00
After quite a long fight to get rid of a modal problem I had in my room, and which caused a bump in frequency response of the room around 30 Hz, and a lot of troughs between 40 and 70 Hz, I could finally overcome these difficulties by spending considerable time adjusting my listening position, as well as the position of my loudspeakers.
I observed considerable improvements when moving the listening position to 1/4th of the length of the room, in order to get rid of backward reverberation. I then finely adjusted the speakers, using the Trinnov as a measuring tool to adjust the frequency and phase response of each of the speakers.
I finally reached a satisfactory situation, complying with this guideline (http://www.acousticfrontiers.com/wp-cont...ndards.pdf), which I found interesting.
I am now within the limits of :
What can I say : when I re-calibrated the Amethyst and started to listen to music, this was absolutely jaw dropping ; I would sincerely encourage all of those of you who are excited by the sound stage restitution to have an audition of this machine, which offers absolutely incredible sensations.
SAM from Devialet is an interesting technology in the sense that it helps improve the phase adjustment of speakers ; but this does not take the room parameters into consideration. Trinnov Amethyst does the same after measuring reflection of the sound waves on the walls and provides a very clean frequency and phase response which takes all the parameters of your room into consideration.
Absolutely wonderful !
I observed considerable improvements when moving the listening position to 1/4th of the length of the room, in order to get rid of backward reverberation. I then finely adjusted the speakers, using the Trinnov as a measuring tool to adjust the frequency and phase response of each of the speakers.
I finally reached a satisfactory situation, complying with this guideline (http://www.acousticfrontiers.com/wp-cont...ndards.pdf), which I found interesting.
I am now within the limits of :
- +/- 10db at 1/24th octave resolution within the bass range (20 to 300 Hz)
- +/- 5db at 1/3rd octave resolution within the bass range
- +/- 3db at 1/3rd octave resolution within the rest of the spectrum
- +/- 3db at 1/3rd octave resolution between the two channels
What can I say : when I re-calibrated the Amethyst and started to listen to music, this was absolutely jaw dropping ; I would sincerely encourage all of those of you who are excited by the sound stage restitution to have an audition of this machine, which offers absolutely incredible sensations.
SAM from Devialet is an interesting technology in the sense that it helps improve the phase adjustment of speakers ; but this does not take the room parameters into consideration. Trinnov Amethyst does the same after measuring reflection of the sound waves on the walls and provides a very clean frequency and phase response which takes all the parameters of your room into consideration.
Absolutely wonderful !
