DEQX Beginner seeking advice

Thanks, drewan77, for the tips. Though I decided not to keep the DEQX (the relay clicks and dropouts when changing sample rate proved too distracting), the general principles you outlined are useful to know. I can use them for adjusting subs, whatever gear I wind up with.

BTW, I'm currently evaluating the Classé CP-800, which has much less DSP than the DEQX, but enough for my needs, and is delightfully simple to operate.

Mike

Drewan77, I would like to thank you !

I have been playing with my DEQX Express II for a while and I thought I knew most of the nuts and bolts, but in your post above on subwoofer time alignment, you offered a major league trick I didn't know and even ever think of: measuring the actual delay between mains and subwoofers at the listening chair : really smart !

So far, I have only used the DEQX utility to calulate the required delay based on the distance between the subs and the mains, which provided what I thought, a good result. When I modified those values with the actual measured values using your process, wow, much better, without any doubt! The result is a convincing demonstration of the benefits of a well  "time aligned" speaker system and while I will not describe those benefits because you all know them (!), I can't resist to say that the improved "soundstage"/"imaging" was what striked me the most !  

So again, thanks Andrew for sharing your knowledge with us and if Alan (Langford) is reading this... Alan, this is something that should be added in the DEQX user manual !

Regards,
Denis 

Thanks Denis, you're welcome & glad you're enjoying your system.

(I guess I must be telepathetic (!) or something as I rarely look into this site but just glanced at it within 30 mins of you posting!

Hello Mike. I was the OP on a lengthy DEOX thread,perhaps the one you've seen. Countless gents graciously contributed to it. I would suggest you browse the thread and send questions to those who addressed your interests. Good luck. Pete

The result is a convincing demonstration of the benefits of a well "time aligned" speaker system and while

one correction (major, in fact. :-) ) - once you did what drewan77 suggested you’ve corrected your speaker system become more time-COHERENT (not just simply time-aligned). Time-aligning is aligning the acoustical centers of the drivers while time-coherent means making an effort to ensure that the sound waves from each driver arrive at your ear at the same time. While you might not have achieved full time-coherency (you probably need to tweak DEQX a bit more) you’ve certain made a step in that direction. In time-alignment there is little guarantee that the sound from each driver will arrive at the same time at your ear but the action of time-aligning is a requirement for time-coherency.