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Bi amping my ML SL3 speakers

Few questions for the ones that know the answers :)

If I’d like to bi-amp my speakers how do I know how much power should I send to the woofer and how much to the rest of the speaker ? (for mids and highs)

Currently I am using a Rotel 1582MKII and if I really crank the volume woofers start to distort so I’m thinking this amp is too much power ?

Info on ML site is misleading one place says 80-200 but I also saw 20-400 WPC so which one is it. My rotel amp is rated for 200WPC at 8 Ohms and no 4 ohm rating.....my speakers are 4 Ohms rated

Also I am guessing that the amp dedicated for lows doesn’t have to be as high end as the one for the electrostatic panels ?

 

Last but not least I will need a pre amp that has two sets of pre outs so I can feed same signal into both amps correct ? I really don’t want to get RCA splitters because that defeats the purpose of having a nice set of RCA’s - this question has been resolved thanks to riley804. I will get some but amp cables :)

 

Lots of questions any answers or wisdom is much appreciated !

lehelke3
bigtwin's avatar
bigtwin
1,193 posts
 

You don't need a preamp with dual outputs.  You simply use a Y splitter off the pre, into two signal lines.  Not saying two amps is the right way to proced,  just addressing the dual output question. 

lehelke3 OP
10 posts
 

Thanks guys seems like aftercreading the article provided by Mike I should try bi wiring with my 1582MKII Rotel amp see if sound improves....

ditusa's avatar
ditusa
1,883 posts
 

Let us know how it sounds!😎

Mike

audphile1's avatar
audphile1
4,920 posts
 

+1 on suggestions to use one good amp and bi-wire the speakers. However…
Few things to consider here -

1. The ML panels present more challenges to the amplifier than the woofers do. This is because the impedance on the panels can dip below 2ohms. I do not think your rotel is a good match for these speakers and bi-wiring is unlikely to improve things much. 

2. When you say your woofers distort, what kind of distortion are you talking about? What does it sound like? Could have nothing to do with amplifier and bi-wiring is unlikely to resolve it. 

lehelke3 OP
10 posts
 

Thanks for your feedback. Agreed panels can go as low as 1.5 Ohms

. I was hopping with that big toroidal transformers rotel can handle it but maybe not. Interestingly enough when I crank it its not the panel that is having an issue it's the subs, they bottom out....to answer your question.

They sounded like when you provided to much power to a subwoofer

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