Apogee Duetta Signature: Optimum placement

I would wait on any upgrades until you have had the speakers for a while..get to know them kind of thing. Mine are five feet out with no toe-in and 8 feet between MRT's. My room is 27'X 23' with the speakers on the 27' wall and tip-back is the same as yours.

I started out with bi-wire setup, rear switch in normal position sounded best..Krell Ksa-250 in this setup. I now have a passive bi-amp setup on them, Krell Ksa-250 on the bass panels and Krell Kav-500 on the MRT's.

This was a huge gain in every department and I now like the rear panel switch in the high position which I thought was a little bright before (on some recordings).

My next step will be an active bi-amp setup with a good active crossover..still doing research but will Keep the Ksa-250 on the bass panels as it has complete control with no hint of strain.

I would get rid of the cheap jumpers at the very least and pull them out to around 4 feet from the wall. I don't know much about your amp but it would seem to be a little weak in the power supply for outstanding bass response. My Ksa-250 will double down to .5 ohms, I still had a big gain in the bass department when I went to bi-amp setup..that tells you something about the Duetta Sig's.

Dave

If you don't already know http://audioworld.com/cgi-bin/sw/forumdisplay.cgi?action=topics&forum=Apogee+Acoustics+Users+Group&number=1&DaysPrune=45&LastLogin= This is the Apogee forum, lots of good info.

Dave

Duettas are very forgiving when it comes to placement. That is, compared to other Apogees. I had mine all over the place without noticing major sound shifts. With my Scintillas, that is another matter entirely. The position you have them now is really a good one. It's easy to experiment. I would follow Sogood's advice and move them out to four feet just to see. Your amp is perfectly adequate.

I am using one small digital Acoustic Reality eAR for my Scintillas. This amp does it all. I have a better bass than even a Krell can muster, mids the equal of the best tube amps, and highs are sweet. Detail is way beyond all conventional amps, and the leading edge is instantaneous.

Unfortunately, there is no state side support available.

My amps power suppy (The ASR Emitter One Exclusive) is enclosed in a separate chassis. It also has a pure dc battery supply that powers the preamp section. The amp can provide 2 x 700 watts at 1 ohm so I don't think it is lacking. The suggestion of moving the speaker out to 4 feet makes sense. The backwave from the panel may be bouncing off the rear wall and since it is out of phase with the front wave launch it could be partially canceling the bass energy as it meets it in the front of the speaker.

The jumpers I know have to go, It's just hard to spend another 1800 for another set of cables.

Thanks for the feedback.

Hi Darrell

Didn't mean to sound like your amp did not have enough power, My point was more of a reference to the speakers. The Ksa-250's output into one ohm load is almost three times greater than your amp..yet when the speakers were bi-amped their bass response improved right along with the mids and highs. This has led me to beleave that even a more powerful amp than the Ksa-250 (the Ksa 300s comes to mind) could improve bass response even more. Just something to keep in mind down the road as we explore these great speakers.

Dave