Re: 2ohm speakers to new alpine cda-9857 4ohm head unit
- From: "Chad Wahls" <cwahls@xxxxxxxx>
- Date: Wed, 7 Jun 2006 10:50:02 -0500
No it won't, it will simply piss off the meter. In R mode the meter looks
at a voltage drop over a known resistance, the meter supplies the voltage
sounce. Inserting AC voltage into the equation will piss the meter off,
ruin it, or blow the protection fusing if it has any.
Resistance is a DC measurement. Impedance is an AC measurement. To do
impedance measurement you will need to put a resistor in SERIES with the
speaker and measure voltage drop from there in V MODE while playing test
tones or preferably a sweep while doing a plot. Calculate then derive a
nominal impedance.
DCR is NOT impedance. DO NOT attach an Ohmmeter to the speaker terminals
while an apmlifier is operational. If it is not operational you will get
damn near a dead short reading due to the VERY LOW output impedance of solid
state designs.
Chad
"KU40" <KU40.291akd@xxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:KU40.291akd@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx
you still can check the impedence with the dmm while the speaker is
playing to see what impedences it shows at different frequencies. just
play some test tones to keep the frequency steady and the dmm will show
the resistance at that frequency.
--
KU40
.
- References:
- 2ohm speakers to new alpine cda-9857 4ohm head unit
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- Re: 2ohm speakers to new alpine cda-9857 4ohm head unit
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