volume level and xlr


I have a Simaudio I-7 integrated and a Supernova cd player. When I use xlr interconnects as opposed to rca's the sound level is lower for a given setting on the volume control. Before the Supernova I used an Audio Aero Prima cd player with xlr's and experienced the same condition. The xlr cable was the same in each set up. They were new Signal Cable Silver Resolution cables. I used them for at least 60 hours of listening before a final assessment of the situation. I have since gone to Signal Cable Silver Resolution rca interconnects. I like Signal cables. I use them for all my cabling; a good cable at a reasonable price, and Frank is great to deal with.
Two questions-
1. Is this a normal thing or might I have a problem somewhere?
2. Is there that much to gain from xlr's as opposed to rca's?
valinar

Showing 1 response by shadorne

It is possible your amp is expecting pro audio levels on the XLr and therefore it is atenuated somewhat when you use XLR with a device that does not output pro audio (+4 dBU).

Roughly speaking, consumer uses cheaper components and runs at (10 dbV = 0.3 Volts) while pro uses stronger signals (+4dbU = 1.22 Volts). Pro gear can usually go up to about 12 to 15 volts while consumer gear runs no more than 2 volts.

Ii can't be sure - but this might be the reason and it therefore means there is nothing wrong with your gear.