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View Full Version : PA1100.5 RMS power question.


roy7777
07-13-2009, 04:48 PM
Hi, I have a question about the PA1100.5 RMS power.
According to the Polk Audio website, the power is:
125 watts x 4 (2 ohm) and 600 x 1 (1 ohm) continuous power;
250 x 4 (2 ohm) and 1200 x 1 (1 ohm)

The speakers on my car are:
Front: Polk Audio db6750, 4 Ohms,
Rear: JBL P9633, 4 Ohms,
Subwoofer: RockFord Power T112D4, 2 Ohms,

Can I use the PA1100.5 on my car?
And what will be the RMS power output?
Thanks for any help.

jvc
07-13-2009, 05:19 PM
http://www.meyersound.com/support/papers/amp_power.htm

For example, if we look at the sine wave voltage at the output terminals of a power amplifier, we will find the RMS voltage to be the peak voltage (Epeak) divided by the square root of 2. If we measure the RMS sine wave current from the amplifier, we will see that, similarly, it is the peak current (Ipeak) divided by the square root of 2.

Multiplying the two, we get:

(E peak /(sq root 2)) * (I peak /(sq root 2)) = (E peak * I peak)/2

genroxbro
07-28-2009, 07:20 PM
Power Acoustik Fanatik Series amp. Very good condition, 4 channel about 40 watts RMS x 4 4 - 8 ohms, non bridgeable, 20 amp fuse. Full range/low pass crossovers, gain control. Around 2 months old, used on a pair of 6x9s and 6 inch components.

Asking 400 for it.

PM me for further details.
_____________________________________
Website I designed for payday cash advance (http://www.paydaytown.com) company.

MacLeod
07-28-2009, 11:02 PM
If you want to sell something on here you do it in the Garage Sale and you have to have 25 posts.

cadenceclipse
07-29-2009, 01:54 PM
boy does that sound like a rip off..

i 4get what jvc said but if u look at the amps specificatioons on website it states 80w at 4ohms, so interiors r getting at least 80w a piece(meaning i'd b pretty careful setting those gains) sub it doesn't mention 2 ohms but if 1 ohm is 600, i'm betting 2ohms is about 3 or 400

tsroonney
08-11-2009, 03:48 AM
Hi, I have a question about the PA1100.5 RMS power.
According to the Polk Audio website, the power is:
125 watts x 4 (2 ohm) and 600 x 1 (1 ohm) continuous power;
250 x 4 (2 ohm) and 1200 x 1 (1 ohm)

The speakers on my car are:
Front: Polk Audio db6750, 4 Ohms,
Rear: JBL P9633, 4 Ohms,
Subwoofer: RockFord Power T112D4, 2 Ohms,

Can I use the PA1100.5 on my car?
And what will be the RMS power output?
Thanks for any help.



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