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Apogee Duetta Signature: Optimum placement

I am setting up the Duetta Sigs in a room 16' x 15' with an 8' ceiling. I have them on the 15' wall 20" from the side walls and 36" from the rear. The distance between the left & right m/t ribbon sections are 7'. The tip back is 2.5" or 2.5 degrees. The toe in is 1/2". Listening position is 9'. What changes do I need to make to this basic configuration to acheive the best sound? I am using an ASR amp which provides 290 watts at @ 4 ohms & 520 @ 2 ohms. The speakers have a single run of speaker wire and jumpered on the back terminals. I have, but not installed the crossover upgrade kit (came with the speakers) for the caps, resistors & inductors. How much difference does the upgrade make? Is it worth the hassel of taking apart the speakers to install it??
darrell
sogood51
2,157 posts
 
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
sogood51
2,157 posts
 
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
muralman1
1,527 posts
 
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.
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