# Two 8ohm cabs = 4 ohms, buuuut...

Discussion in 'Amps and Cabs [BG]' started by indykrap, Apr 23, 2006.

1. ### indykrap

Nov 6, 2004
I understand that when you run a 4ohm head out to two 8ohm cabs, the net load is 4ohms, but does that mean you get the power of the cab (at four ohms) out of it?

Example: I have a GK backline head, which does 175 watts at 4ohms and 115 at 8. I'm running it into my Fender Bassman 410, which is an 8ohm cabinet. I understand that I'm only getting 115 watts into the BM. Now, if I get another 8ohm cab (like, a 1x12 or something), and run the GK into that as well, do i get 175w into each cab?

yes, i tried searching and the FAQ, but it didnt help too much.

2. ### BassholeBanned

Jan 28, 2005
No, you get 87.5 to each for 175 total from the amp.

3. ### OstinatoGuest

Feb 7, 2005
Toronto ON
Two 8 ohm cabs into a mono amp will give you the amps full rating at 4 ohms.

4. ### emblymouseSupporting Member

Jan 22, 2006
W'Sconsin
Lakland Artist Endorser
Ok, how about and 8 ohm cab w/ a 4 ohm cab? Not quite 2 ohms?

Dec 14, 2004
2.67

6. ### emblymouseSupporting Member

Jan 22, 2006
W'Sconsin
Lakland Artist Endorser
Thanks, I've always wondered. I guess I'm smarter than I thunk.

7. ### Petebass

Dec 22, 2002
QLD Australia
Yes but don't forget the 4 ohm cab will draw twice as much power as the 8 ohm cab. Potentially, one cab cound drown out the other.

8. ### Cristo

Jun 10, 2005
South Carolina, USA
Also, your amp may not be rated to run at 2.67 ohms.

9. ### i_got_a_mohawk

yup, important point there, the 4ohm cab will get 2/3rds of the power the 8ohm cab will get 1/3rd