That's a good question Unsound. Glad you thought of it : )
The Sig II's and the Classic's have different bass alignments. As such, they will not only sound different, but also load the amp differently. Both designs ( in stock form ) have a pronounced bass peak at a relatively high frequency ( 90 - 120 Hz ), so room placement and nodes can really come into play. This is besides any other speaker / room interphase situations taking place, which can also effect imaging, soundstage, etc...
Due to the difference in loading on the amp, the Classic's may simply require more than what your receiver can cope with. You might want to try swapping both the speakers and speaker cables in your main system and see how things work there. If you can get the results that you want with either set of speakers and / or either set of speaker cables in the main system, then you know it has to be room and / or "power" related in the secondary system. Sean
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The Sig II's and the Classic's have different bass alignments. As such, they will not only sound different, but also load the amp differently. Both designs ( in stock form ) have a pronounced bass peak at a relatively high frequency ( 90 - 120 Hz ), so room placement and nodes can really come into play. This is besides any other speaker / room interphase situations taking place, which can also effect imaging, soundstage, etc...
Due to the difference in loading on the amp, the Classic's may simply require more than what your receiver can cope with. You might want to try swapping both the speakers and speaker cables in your main system and see how things work there. If you can get the results that you want with either set of speakers and / or either set of speaker cables in the main system, then you know it has to be room and / or "power" related in the secondary system. Sean
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