Sc Nak Amp Crossover Points

[mikee72]

I think I already know the answer to this, but just in case someone out there has a good working knowledge of the Nak internals and is able to lower the hi-pass cutoff for the mid's, I thought I'd try anyway. The situation is, I really like the stock SC Nak system, but after hearing a '98 ES with the Nak and the 5 1/4" front speakers, I'd like to upgrade my front speakers to at least 5 1/4's. Obviously, that would be pointless without the ability to lower the hi-pass to take advantage of the larger speaker. Suggestions? I assume that the ES Nak amp isn't compatible, harness-wise.