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Ampeg PF-500 Portaflex Bass Amplifier Head

The Ampeg PF-500 Portaflex Bass Head delivers a wall of sound and power in an ultra-compact design.


(9 reviews)


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MSRP: Old Price $559.99 Discounted Price $449.99 Save : $110.00 (20%)
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MSRP: Old Price $559.99 Discounted Price $449.99 Save : $110.00 (20%)
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Ampeg’s Portaflex PF-500 bass head delivers a staggering 500W of power in a lightweight design providing pure Ampeg tone in an extremely portable package. The PF-500 sets a new standard for solid-state with Ampeg’s MOSFET preamp.  The Ampeg PF-500 features a 5-position midrange control and classic ultra hi/lo boosts to maximize tonal possibilities. With additional features like a direct out with ground lift and -15 dB input pad make the PF-500 perfect for the working bassist. There’s even onboard compression for a tighter, cleaner tone at high volumes.

The PF-500 head matches perfectly with the Ampeg PF-115HLF or PF-210HLF flip-top cabinet for the ultimate portable Ampeg tone.  Get yours from Sam Ash Direct today with the security of our 45/60 day return/price protection policy.

  • 500 Watt RMS power output @ 4 ohms
  • 3-Band EQ with additional 5 frequency presets
  • Ultra High/Low Boosts
  • Solid State Class “D” power amp
  • Onboard compression with FX loop and mix control

Get your Ampeg PF-500 Portaflex Bass Amplifier Head today at the guaranteed lowest price from Sam Ash Direct with our 45-day return and 60-day price protection policy.

Things You Will Get:

  • Bass Amp Head
  • Owners Manual

Awesome amount of power in a light weight high end Bass AMP


Whether you are playing the basement, garage or small to medium venue this will do the job.





Great service and great sound.



The only thing that I need to be happy


Best amp that I ever play with. Clear Punchy little Monster. And best of all it takes my Alpha Omega Ultra distortion pedal like a pro.



Good middle of the road amp


#sweepstakes Having trouble getting the time I want but it is still a great amp



Unbelievable bass head. Fab Service


Unbelievable Bass Head, truly great tone. Onlne staff where very helpful RE the purchase. Store staff were very helpful when i collected it. Sam Ash are a great store.

Rob Ster

Turks and Caicos Islands


Great bass head


I had an old (late 70's) SVT that I loved but way to heavy. Bought this head and running it through the PF410 and the PF115 to get the 500 watts when needed. Most of the time I only use the PF410 (360 watts) love the sound. The only draw back is the PF cabinets that I choose do not have the Portaflex capability. But the head is light weight and sounds great with my RIC


SW Florida




I was afraid this amp would be like the svt3 I bought new many years ago. Sounded great for about two days and then kaput. I never bought another Ampeg amp after that. The factory never did fix it and would not replace it. Now I always loved the sound,but I was really pi.. about the service. Well I ordered this amp, because I know if it ain't right Sam Ash will make it right. I've been buying gear from them for years and Matt has always been first class. Now to the amp. I love it in every respect. There is no other amp at this price range that comes close. Great tone all the features of the big amps and lite weight. Just so you know , some review said the fan was noisy. Ain't so whisper quiet. Plenty of volume. Sounds great with a hartkye hydrive112 and a ampeg b115e.


Columbus Ga.


excellent head! powerful & portable


As an Ampeg lover, I have to say that this Class D amp blew my brains out. y tested it at my local sam ash store and it was love at first heard... Really versatile for getting the signal that you want to record or to a mixer for live performance. the compressor is really natural and warm sounding I use with the ampeg PF 210 HE speaker cabinet and just can't get enough of it. the portaflex function it is awesome too.


miami, Fl


Ampeg has done it again


This is a very easy to use and powerful head, there should be no problem dialing in your sound. other than a slight hiss when using the PF-115 & PF-210 cabs (turn horns down) I have nothing bad to say. this rig kick out some serious low's I use this amp with an Upright Bass and play a slap style, and whenever I played through an Ampeg I have always got a great tone. I will without a doubt put this rig through the ringer and only time will tell if this head can hold up to the job.

Big Daddy



PF-500 Portaflex Bass Amplifier Head

4.9 9


Series Portaflex
Model PF-500
Warranty Info:

PF-500 Portaflex Bass Amplifier Head

The manufacturer's warranty covers B series, Diamond Blue and BA combo amps for two years; SVT Classic and Pro series speakers for two years; SVT Classic and Pro Series electronics for five years; all tubes for 90 days; and all guitars with a limited lifetime guarantee. The warranty excludes damage from misuse, abuse, and contains other exclusions.

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