Sierra Towers + Sierra 1 NrT Center vs Sierra 2 LCR

[kingcrowing]

I'm planning on ordering three Sierra 2s for use as an LCR in a 60:40 Home Theater:Music Setup. I do 3.1 for HT and 2.0 for music. However, I was just reading the tower thread and some people have said they're just in another level to the S1/S2 being a 3-way.

Out of curiosity I spec'd out what it would cost to do a pair of towers (with the NrT tweeter) and a Sierra 1 with the NrT upgrade and it was $380 more (that's factoring in stands to use with the S2 LR channels).

What would the differences be between these two setups? The RAAL towers are out of my price range, and I don't ever plan on going to 5.1+ so if I buy the S2s I won't someday just use them as surround speakers. But for $380 I am certainly considering this option as I'd say I'm generally biased towards tower speakers in general.