My preamp with MultiEQ XT32 came last night. Audyssey set all speakers to -12dB. I'm thinking I told you wrong before. I must have set the -9.5dB level for the front La Scala's manually using REW and a calibrated mic on my MultiEQ XT AVR.
I ordered these 10dB attenuators to put between the preamp and the amp:
You can just raise levels and it won't affect MultiEQ, but it will offset the DynamicEQ. The main reason I ordered the attenuators is to cut down on pink noise from the preamp (which is a tiny bit softer than my AVR, but noticeable within 3-4 ft of a La Scala. The ATI AT2007 is overly sensitive and the Marantz output has a much wider voltage range than the clipping voltage of the ATI.
One neat thing I noticed is the XLR cables from the preamp allowed me to run the AT2007 in differential mode and now there's no noise from the amp. Before when I turned on just the amp, I could hear pink noise. Now I hear nothing with just the amp on. Even if my ear is within 1 ft of a La Scala. This is because the RCA connections before bypassed the differential amp's noise cancelling abilities. I guess that's something to look for when you buy a preamp is XLR connections, if your amp is a differential amp.
Edited by etc6849 - 12/17/13 at 3:37pm
Originally Posted by SanchoPanza
Thank you to snailtrax from the Klipsch forum. Date code works out to 1980. AVR 3312 crossed them at 40, Small & -12.0dB after running Audyssey.