Double Bass Question about power output / ohms

[Nuno A.]

Hello everybody..
Last week i played with an Ampeg Portabass and i really liked it..it sounded good and pretty light rig...since i dont see myself in the next times affording EA stuff, this can be a good solution for me...but i have a question.
The head output is rated at 250 W at 4 ohms and 150 at 8 ohms,which means that if i buy a 4 ohms speaker i will have 250 W..so far so good...the problem is with the combo amp.
The combo output is rated exactly the same, 250 W at 4 ohms and 150 W at 8 ohms...
So if i buy this combo and want to have 250 W what can i do??? Do i need an extra speaker for the 4 ohms load??
Thanks in advance, probably the answer is pretty simple but i this is only my 3rd cup of coffe today and still cant get it..
Thnaks a lot

NUNO

 

[JMX]

As far as I've read the manual(s), the internal speaker cab is 4 ohms already, so you can either use an external cab OR the internal one.

 

[Sam Sherry]

Nuno, I suspect the answer is that you don't want "xxx watts." Perhaps this thread may shed some light (although there is a bunch in there that's over my head).

http://www.talkbass.com/forum/showthread.php?s=&threadid=33488

 

[Nuno A.]

Thanks guys....
And yes Samuel, theres a lotta stuff in that thread thats way beyond my knowledge,,,guess i better go practice .

NUNO