TS > LS> As you know, or should know, the impedance of a
TS > LS> speaker is a reactive load, never stays at one
TS > LS> impedance.  I could visually see that happen over the
TS > Unless you defeated normal AC line protective devices, how TS > did you 
sustain 100 amperes?
 LS> Simple, plugged the amp into a 25 ampere 120 volt plug, 120 volts dipped 
 LS> to 90 volts, and that's what i measured using an 
 LS> ammeter in parallel with a 8 ohm speaker.  The 
Sounds like you need better building wiring.  Ammeters are series devices 
BTW, unless they're AC current transformers (amprobes) or DC hall effect 
transducer instruments.  If you connect an ammeter in parallel with a driver, 
you likely have a near short load from an ammeter shunt with little current 
to the driver.  
 LS> speaker did not like it, i measured 167 volts at 100 
 LS> ampers into the speaker.  I noticed amps are getting 
If you mean 100 amps at a fractional ohm shunt impedance, and 167 volts with 
no load or an 8 ohm speaker, those are NOT numbers which can be simply 
multiplied to calculate real power.  Still, 100 amps sustained long enough so 
that an ordinary ammeter could read it represents a LOT of power for an audio 
amp.  167 volts RMS into 8 ohms would yield nearly 3500 watts, or 435 watts 
if peak to peak.  100 amps into a 0.05 ohm shunt would yield 500 watts, but 
represent healthy reserves to deal with driver reactance.  
 LS> very efficient, 75 percent efficiency rating is on 
 LS> all my amplifiers with this class AB dual rail system.
It would be hard to spec meaningful efficiency on such a design without the 
context of the measurement conditions, as it would be highly variable.  
Terry
--- Maximus 2.01wb
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