I understand that not everyone's significant other is cool with having a lot of tube traps and acoustic wall panels in their living room--and I count my wife among them. That's why I use Lyngdorf's RoomPerfect room correction system and it's simple to set up and use, plus the results are gratifying.
I have also used a fairly basic dbx 31-band stereo graphic equalizer with very good results... but usually you need a way of measuring the resulting response curve and it is done manually, band by band whereas the Lyngdorf does it automatically using measurements you take around your room with the included microphone.
From what I understand the DSpeaker EQ only adjusts frequencies from 500Hz and lower, and the Rives unit, while it is reputed to be fairly transparent, is also limited to what it can do, and I believe it only works in the bass. The Lyngdorf works full-range and reduces room reflections which can improve the fine detailing and imaging quite a bit. There is a lot of flexibility as to the adjustments you can make to the sound via remote control from your listening position, and that's another reason why I like it. It also has a bypass button so you can instantly compare the direct input signal to the EQ settings. For me this makes it a no-brainer.
While the Lyngdorf is not inexpensive, neither are acoustic panels, diffusers, helmholz resonators or tube traps... and none of those devices may work at the specific frequencies that your particular room needs corrected.
Many audiophiles are "purists" at heart, and as such are closed-minded to anything that does not fit their purist mindset. In the case of room acoustics and EQ keep in mind that most of the people giving advise have little or no experience working with electronic EQ. Even if they have tried electronic room equalization, there is a learning curve and they may have given up before they fully understood how to use their device effectively. That said, it's not exactly rocket science.
I have also used a fairly basic dbx 31-band stereo graphic equalizer with very good results... but usually you need a way of measuring the resulting response curve and it is done manually, band by band whereas the Lyngdorf does it automatically using measurements you take around your room with the included microphone.
From what I understand the DSpeaker EQ only adjusts frequencies from 500Hz and lower, and the Rives unit, while it is reputed to be fairly transparent, is also limited to what it can do, and I believe it only works in the bass. The Lyngdorf works full-range and reduces room reflections which can improve the fine detailing and imaging quite a bit. There is a lot of flexibility as to the adjustments you can make to the sound via remote control from your listening position, and that's another reason why I like it. It also has a bypass button so you can instantly compare the direct input signal to the EQ settings. For me this makes it a no-brainer.
While the Lyngdorf is not inexpensive, neither are acoustic panels, diffusers, helmholz resonators or tube traps... and none of those devices may work at the specific frequencies that your particular room needs corrected.
Many audiophiles are "purists" at heart, and as such are closed-minded to anything that does not fit their purist mindset. In the case of room acoustics and EQ keep in mind that most of the people giving advise have little or no experience working with electronic EQ. Even if they have tried electronic room equalization, there is a learning curve and they may have given up before they fully understood how to use their device effectively. That said, it's not exactly rocket science.