Hifonics Brutus 1500w current draw

[ChiZZad]

Would anyone know what the approx. current draw would be for this amp? The
manual is useless and google didn't turn any good info up.

TIA

Chad

[FHLH002]

http://www.installer.com/tech/ohmslaw.html


"ChiZZad" > wrote in message
...
> Would anyone know what the approx. current draw would be for this amp?
The
> manual is useless and google didn't turn any good info up.
>
> TIA
>
> Chad
>
>

[Scott Gardner]

nospam wrote:

> Would anyone know what the approx. current draw would be for this amp?
> The manual is useless and google didn't turn any good info up.
>
> TIA
>
> Chad

Well, if they're being honest about the "1500W RMS into 1 ohm"
specification, then I would estimate the amplifier would draw about 130
amperes of current to produce that 1500W RMS.Â*Â*That'sÂ*basedÂ*onÂ*anÂ*input
voltage of 14.4V, and an amplifier efficiency of 80% (since the Brutus is a
"class D" rather than a conventional AB amplifier.)

Scott Gardner

[John Durbin]

It'll be a little higher, doubtful they'll get 80% efficiency at 1 ohm
or that the voltage will hang at 14.4V with that much extra load in the
car. Class D driving 1 ohm is usually in the high 60's to low 70% range,
and car voltage more likely 14V or less, so using 70% and 13.8V figure
the current is more like 155 amps.

Probably doesn't matter that much once you mix in the duty cycle of
whatever music is playing and the probability that the unit isn't being
driven at full power very often, even on peaks, as a daily driver anyway.

JD

Scott Gardner wrote:

>nospam wrote:
>
>
>
>>Would anyone know what the approx. current draw would be for this amp?
>>The manual is useless and google didn't turn any good info up.
>>
>>TIA
>>
>>Chad
>>
>>
>
>Well, if they're being honest about the "1500W RMS into 1 ohm"
>specification, then I would estimate the amplifier would draw about 130
>amperes of current to produce that 1500W RMS. That's based on an input
>voltage of 14.4V, and an amplifier efficiency of 80% (since the Brutus is a
>"class D" rather than a conventional AB amplifier.)
>
>Scott Gardner
>
>
>
>
>
>