... amplifier question...

Juan · Post by **Juan** » Thu Jan 30, 2003 9:35 pm

Can i run a 5 ohm subwoofer 18 - 300 W with a 4 ohm amplifier 150W?

Juan · Post by **Juan** » Mon Feb 03, 2003 4:18 pm

it is a 10" sub with a range from 18 to 300 watts and 5 ohm impedance... i got this amp that runs on 150 watts but has a 4 omh load, would it be any problem if i run the 5 ohm impedande sub with the 4 ohm load of the amp at all? thanx a lot
juan

Alex LS · Post by **Alex LS** » Mon Feb 03, 2003 5:09 pm

I'm confused. Why would it have a 'range' 18-300W? Even if there is a lower power limit, I'm not sure they'd actually state it anywhere. That sounds more like the frequency range to me. BICBW.

As for the differing impedances, you should be OK, but you just won't get as much power out of your speaker. If I've done my maths right, you will get an output roughly equivalent to a 120W 5ohm amp. No doubt someone will let you know if I'm wrong though

MattB · Post by **MattB** » Mon Feb 03, 2003 5:29 pm

it is a 10" sub with a range from 18 to 300 watts

Does that mean it always makes noise & you can never turn it off?! Cool! I want one!

Juan · Post by **Juan** » Mon Feb 03, 2003 5:29 pm

ok, thanks Alex...

Juan · Post by **Juan** » Tue Feb 04, 2003 4:50 pm

I just read on my amp manual that you can use a load from 2 to 8 ohm, so i should be fine... Than a lot m8s

Pukka Pug · Post by **Pukka Pug** » Tue Feb 04, 2003 10:39 pm

Hi,running a 5 ohmn sub on a 4 ohmn amp is no problem....never run a lower ohmn speaker than the amp is rated at otherwise you can cause serious damage to the output stage in the amplifier.I think wot this guy is refering to "18-300" he means the recommended amplifier should be within these parameters-There-SORTED