I'm the new owner of some JBL 4333b (b/w version) with external crossover network inspired in the Nelson Pass Mod for the L300, all with internal new cables (Nordost) and Mundorf caps.
I always hear them biamped, but when I try to use it with one amp only (I have a Yamaha B2 and a McIntosh 2205) the high frequencies are so loud that I can barely hear the woofers! I remember hear the speakers with the original network, (they were from a friend) and toll him that the low frequencies were very low (so, same thing happens with both networks).
Anyone knows what could happen? The woofers seems to be ok when I biamping so I don't think that they broken or something. I want to have the choice to use it with one amp.
Thank and sorry for my English!