mboxler Posted April 19, 2019 Share Posted April 19, 2019 Without knowing the crossover schematic, let's assume a 1 mh inductor in series with a 4 ohm load. At 637 hz (the -3db point), the impedance would be 5.66 ohms. 8.95 at 1274 hz. All I'm saying is that I wouldn't classify this as a 4 ohm load on the transformer. Quote Link to comment Share on other sites More sharing options...
DirtyErnie Posted April 19, 2019 Author Share Posted April 19, 2019 (edited) Yes, but above the pass-band for the 4 ohm circuit is an 8-ohm circuit taking the load, third order, so two series capacitors and a coil shunted to ground. Where one circuit starts to phase out and change impedance, the other circuit is phasing in and dropping into it's pass-band. Knowing what we know of KG/Epic/KLH + series impedance traces, it seems the WTW, TMWW arrangements are nominally 8 ohms, but love to drop down into the sub-4-ohm range lower in the frequency bands; right where they're going to draw the most power. Solid state amps, good ones anyways, don't have a problem with supplying the current. Tube amps are a little more picky, especially small pentodes like the EL84s in question. I'm definitely going to try this when I get the time. Will do one speaker at a time and a lot of listening. Should be fun. Edited April 19, 2019 by DirtyErnie Quote Link to comment Share on other sites More sharing options...
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