In Reply to: OPT for 2A3/300B design posted by masterofdisaster on July 10, 2011 at 19:37:15:
If you want to measure the performance on an 8 ohm resistor for maximum power with minimum distortion into that test load, I would go with 3K.
You have to really look at the speakers you are planning on using and consider the impedance characteristics across the frequency band to determine which impedance might be better. If you have a nominal 8 ohm speaker with a 4 ohm dip in the bass, I would go with the higher impedance. For all practical purposes, it don't matter much. Just get the best iron you can.
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Follow Ups
- Depends on what you are trying to drive - Chris O 19:50:09 07/10/11 (1)
- RE: Depends on what you are trying to drive - masterofdisaster 18:29:44 07/11/11 (0)