Robertsmania Posted February 8, 2021 Share Posted February 8, 2021 I have a pair of 2Ce Signature II speakers from 2007. This week I've been setting up two new SUB THREE subwoofers into my system and that has involved playing pink noise through various channels and level matching both with and without the subwoofers. Its been about a decade since I've done this sort of thing, and I noticed right away that the timbre sounds different now between my mains. I do not recall there being so noticeable a difference in the past, in fact I remember being more impressed with how similar they sounded. Let me start out by saying this is mostly a curiosity, and I'm not unhappy with the overall performance of the system. It does sound very good and before listening to it with the pink noise I would have not said there was anything wrong. When I play the same frequency range pink noise and pan between the mains, the timbre does clearly change even when the SPL is the same. So I guess my first question is whether that is normal? I accept certainly that in different room positions the speakers are expected to sound different. I did some experiments with changing wires, interconnects and channels on the preamp/amplifier and have convinced myself that looking at frequency response room sweeps, none of those changes were measurable or obvious to my ear. So it seemed like it was either room positions or the speakers themselves. So I moved the speakers out and did some measurements with each one in the center of the room, one speaker at a time. Here are the frequency response graphs for that. What I observe is that between 600Hz and 5kHz the differences are more pronounced than the frequencies above and below that. The contour of the responses are different, not just the levels. Link to comment Share on other sites More sharing options...
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