Ampeg PF-500 Portaflex impedance question

[cfin]

Hey gang,

I just purchased a Ampeg PF-500 Portaflex head, and I'm looking for a cab to pair with it, but I'm a bit confused about the impedance. The Reverb listing lists the impedance as 8 or 4 ohms, so I looked up the manual and it just confused me further. It says,

"The rated power output of the PF-500 is 300 watts rms into 8 ohms or 500 watts rms into 4 ohms. The two outputs are wired in parallel, and you can use either one, or use both. Make sure the total speaker impedance load is 4 ohms or greater. For example, you could connect: Two 16 ohm speakers (an 8 ohm load), two 8 ohm speakers (a 4 ohm load) or one 4 ohm speaker.

Does this mean I can use either an 8 or a 4 ohm cab? I was looking at a Peavy 410 (an 8 ohm cab) I saw for cheap; even if it maxes out at 300 watts that should be more than enough for small gigs and the like, so as long as it's safe that's enough for me.

Thank you!

 

[S-Bigbottom]

Yup.

Two 8 Ohm cabs or one 4 Ohm cab. are your limit.

 

[cfin]

Yup.

Two 8 Ohm cabs or one 4 Ohm cab. are your limit.

Sounds good, thank you!

 

[Monyet]

Yes, it definitely sounds good. I pair my PF500 with either one or two 8 Ohm cabs (2x10), depending on what volume is needed. It will pump out 300 watts in one, and the full 500 into two. A 300 watt 410 should do the trick just fine and safely.