Answering After_hrs question, the difference in the quality of music after setting DEQX into the system is so astounding that it is impossible to compare the amps
An important aspect here is that when you measure & correct the speakers (ie outdoors) and then calibrate, re measure and correct in the listening position, this is with each amp/channel as you will use in the final setup. Source components (in my case Vinyl/CD/SACD/Streamed FLAC) only play a part during final time alignment tweaks or equalisation on-the-fly whilst listening to music. This is a really good feature so you can arrive at exactly the sound you want
DEQX corrects what the mic hears and therefore the impact (or otherwise) of each amp is taken into account. The end result just sounds lifelike and 'neutral', without colouration. Equally importantly, all the bass humps and dips have audibly disappeared and the room/speaker interface has no bearing on the sound. DEQX will also enable you to take bass to unbelievable levels if you so desire and if the drivers will allow it. At the same time it remains uncoloured - hard to believe it is possible until you hear it
Another example is that I have tried 3 different types of speaker in 2 different rooms with a different power amplifier controlling the midrange and if used correctly, the end result is remarkably similar. I have changed to different brands for mid and treble in my current setup and it has no discernable bearing (and I am someone who knows that system/room intimately). That is very impressive
If there is a downside, apart from the relative complexity in learning the process correctly, it is that I now spend all my spare time in that damned music room and my already vast music collection grows weekly :)
An important aspect here is that when you measure & correct the speakers (ie outdoors) and then calibrate, re measure and correct in the listening position, this is with each amp/channel as you will use in the final setup. Source components (in my case Vinyl/CD/SACD/Streamed FLAC) only play a part during final time alignment tweaks or equalisation on-the-fly whilst listening to music. This is a really good feature so you can arrive at exactly the sound you want
DEQX corrects what the mic hears and therefore the impact (or otherwise) of each amp is taken into account. The end result just sounds lifelike and 'neutral', without colouration. Equally importantly, all the bass humps and dips have audibly disappeared and the room/speaker interface has no bearing on the sound. DEQX will also enable you to take bass to unbelievable levels if you so desire and if the drivers will allow it. At the same time it remains uncoloured - hard to believe it is possible until you hear it
Another example is that I have tried 3 different types of speaker in 2 different rooms with a different power amplifier controlling the midrange and if used correctly, the end result is remarkably similar. I have changed to different brands for mid and treble in my current setup and it has no discernable bearing (and I am someone who knows that system/room intimately). That is very impressive
If there is a downside, apart from the relative complexity in learning the process correctly, it is that I now spend all my spare time in that damned music room and my already vast music collection grows weekly :)