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Thread: Biamping LSi25?

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    Default Biamping LSi25?

    I picked up a pair of LSi25s last week for my two channel system and I'm loving them so far. I'm currently using a NAD C372 integrated amp to power them which is fairly powerful at 150 wpc. I can bypass the preamp on the NAD and just use the amp section so I'm thinking about picking up a Peachtree Audio Nova integrated primarily for the tube preamp stage and the built-in dac. It does happen to have a built-in 80 wpc amp I was just going to bypass. Then it dawned on me that I could biamp the speakers using the Peachtree to drive the uppers and the NAD to drive the lowers. As these are pretty power hungry speakers I thought this might be a decent solution. Does anyone have any thoughts on this? Would it be beneficial to drive the LSi25s this way?

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    Quote Originally Posted by erick.s View Post
    Would it be beneficial to drive the LSi25s this way?
    No. Use the NADs amp section to drive the entire speaker

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    Thanks for your opinion. Is there a reason why this wouldn't be the ideal way of using the equipment I have (and that I may have)? Eventually I'll sell the NAD and pick up a dedicated larger amp but in the meantime this seemed like a decent solution. Granted I've never attempted passive biamping before so I may be missing something.

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    2 different amps, 2 different speeds on which power will be delivered, and that will sound funky. Besides, the 25's have a built in amp for the lower portion.

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    Not to mention, the bottom set of binding posts *only* feed a signal to the lower section's amp. The upper binding posts are what feed the 3 top drivers in the speaker. Ergo, bi-amping is not only not going to make a difference at all, it will also waste a channel of amplification that will only be used for signal to the sub's amp.
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    Quote Originally Posted by ZLTFUL View Post
    Not to mention, the bottom set of binding posts *only* feed a signal to the lower section's amp. The upper binding posts are what feed the 3 top drivers in the speaker. Ergo, bi-amping is not only not going to make a difference at all, it will also waste a channel of amplification that will only be used for signal to the sub's amp.
    Excellent - that's what I needed to know. Thanks!

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    Quote Originally Posted by ZLTFUL View Post
    Not to mention, the bottom set of binding posts *only* feed a signal to the lower section's amp. The upper binding posts are what feed the 3 top drivers in the speaker. Ergo, bi-amping is not only not going to make a difference at all, it will also waste a channel of amplification that will only be used for signal to the sub's amp.
    Yup, I was too lazy to type all that last night on my iPhone....
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