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Planar Speaker Asylum Welcome! Need support, you got it. Or share your ideas and experiences. |
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In Reply to: RE: That is bcoz the MG 3A is a 4 ohm spkr. nt posted by mondial on November 6, 2020 at 17:34:22:
A resistive load is one which does not have an inductive or capacitative component - and so is a good load for an amp to drive. (Electrostatics, for instance, have a very high capacitative component - and so many amps do not cope. Your typical cone speaker has an inductive component - as well as resistance.)Because your IIIAs are resistive (without much in the way of an inductive component), your ARC amps can make use of their 4 ohm taps. Magicos & Wilsons use cone drivers - which, bcoz of their inductance, require the 8 ohm taps on ARCs (and other tube amps) to be used.
The only issue that makes Maggies a 'difficult' load is their tendency to drop to 2 or 3 ohms at certain frequencies; this causes them to pull a lot more current than if they were a constant 8 ohms - however, ARC amps have great power supplies! :-))
I actively triamp my "Frankenpans" (think of them as IIIAs but with the mid panel on a completely separate sheet of mylar to the bass panel).
Which means I needed:
* a ribbon amp which was happy driving 2 ohms, plus
* a mid-panel amp which could cope with 3.2 ohms.Andy
Edits: 11/06/20
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Follow Ups
- RE: "Magnepans are a resistive load what does this mean? " ... - andyr 17:58:18 11/06/20 (1)
- RE: "Magnepans are a resistive load what does this mean? " ... - mondial 18:21:36 11/06/20 (0)
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