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??
Showing 5 responses by sogood51
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 |
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 |
My advice in regards to the X-over upgrade assumed that Darrell is a new owner of these speakers. This is why I said it would be best to get to know the speakers first. If for some reason he would not keep the speakers..no great loss on resale. The only pair of Duetta Signatures that have been for sale for a very long time here on Audiogon are the pair with the X-over upgrade. If his plan is to keep them for a long time, then by all means upgrade and don't worry about resale value. I know that when I was in the market for mine I only wanted mint/stock model. Dave |