Biggest bang: add Behringer or replace CDP?

I don't think that your question is easy to answer not having heard your room. I have owned a cd63se cd player and you can do much, much better now. The Marantz isn't a bad player, but you will be amazed at how much better cd playback can sound with a better digital rig. That said, most listeners severely underestimate the effect a rooms' characteristics have on what they hear. In addition to the problems Warnerwh addresses, problems that diffusion & echo absorbtion address also severely hamper your systems' potential. I haven't heard the DEQ2496, but what I have read makes it sound like a bargain improvement. My only concern about the Behringer is the fact that it's a cheap, mass produced item from a company with a spotty at best reputation for reliability and customer service. When I researched the DEQ2496 and other similar products, I was taken aback by the reliabilty problems Behringer has.

I hadn't noticed your 1200 dollar budget. With the extra money you could get a Bel Canto Dac 2, Benchmark or any number of other dacs that are truly excellent. That combination is you best bet in my opinion. Even if you're very lucky to have a room that is much better than average, say plus or minus 10db swings(this would be rare), I think my suggestion would offer you the most bang per buck. With the Marantz as a transport and a truly excellent dac you get a DEQ 2496 as a bonus.

The DEQ 2496 will make an amazing improvement to any system because, as your equipment becomes better and better the listening room becomes the dominant flaw. Even if you don't pass your signal through it, and use it only as a RTA, it's worth the $300. No reliability problem with my two units.

As usual Warren , your thoughtful useful and extensive answers are enlightning to many of us who shop for studied opinions on the Gon . Its great members like you that keep many of us here and not completely engulfed at the Asylum . Thanks again !

I guess you already know all the good things about DEQ2496. It is a also a very good DAC. If you are a tinkering type, the Behringer will give you the most enjoyment and you may even like its DAC over your CDP.

For $1,200, Benchmark DAC1 or TRL/Sony 2000 would represent higher level of sound reproduction, in two different flavors.

Good luck.