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Original Message
Treble problem though?....
Posted by Paul Joppa on May 16, 2004 at 10:13:40:
Depends on how much interleaving of course. The transformer will have both leakage inductance and capacitance. Together these will resonate at some (usually ultrasonic) frequency. By cutting the load impedance in half, you will reduce the "Q" of that resonance. If it's already overdamped, then you would lose treble; if it's underdamped you might just get less ringing. In my subjective experience, underdamped sounds better as long as you don't lose more than a few dB at 20kHz.
Here's a thought - with an active crossover, run a 45 for the treble at 5k, and a 2A3 or 300B at 2.5k for the bass.