Dave Diehl
From:
Mechanicsville, MD, USA
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Posted 4 Nov 2017 6:53 am |
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| I talked with Pat Quilter about this and he told me that.. The Steelaire is intended for one or two 4-ohm speakers. A single speaker draws up to 200W and should be connected to “INTâ€. A second speaker should be connected to EXT. Dual 4-ohm speakers split the power evenly. If one of them is 8-ohms, it will draw 1/3 the power (66W) and the 4-ohm will draw 2/3 (133W). It won’t matter which jack each is in. When the second jack is used, a contact is lifted that reduces the optimum output impedance to drive the heavier load. The amp is quite “forgiving†about impedance, will generally deliver the same power over a wide range, and the only effect of mismatches will be minor changes in tone. |
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