Ampeg PF-500 Portaflex 500W Bass Amp Head

Model #PF500

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Expert Reviews
Bass gear review archive.32822699
25 June 2011

Construction on the head is first rate. All controls feel solid and there are enough tonal options to satisfy any player. Front panel also features headphone jack and audio in. This amp has all the important in's and out's needed for any situation.

User Reviews
19 April 2014

Well after subjecting my new PF 500 to three rehearsals at four hours each and its first club gig last night I think I'm finally ready to write a review. I admit I was somewhat hesitant to buy a Class-D amp at first having read a few negative reviews about fragile input jacks and reliability.

American musical.34136908
26 January 2017

I am not a fan of solid state amps with that being said this blew me away and when I use with my 2 10 inch speaker cab and my 15 inch bottom I get the sound I want

17 April 2017

Straight outta the box and on to the stage. Set my tone at sound check. Couldn't be easier. 4 hour show and I have never been more impressed. Classic Ampeg tone, punch and drive. Built in compression makes this a true power house of an amp. Highly recommended.

American musical.34136908
14 July 2016

It has what you need to get a no frills SVT sound. It works great with my upright Kay too!

9 February 2016

Great, lightweight and great sound. At 11 lbs., this is a great amp for the working musician. All the tone controls have a significant effect on your sound. Just dial it in and go.

10 November 2015

I love the Ampeg tone and this delivers. For a couple of years, I've been using the PF350 and I've been very happy with the results, the only problem was that I was having to drive it pretty hard to keep up on stage; I play 70's and 80's glam and hair metal mostly.

American musical.34136908
24 April 2015

Came in a well protected package. The head is well designed and easy to dail in even for an novice as myself.Thank you AMS!

American musical.34136908
14 April 2015

great,fine,great,fine.boom,boom,can you do the jerk,mashpotoes,twist, will make do it.

9 December 2014

I upgraded from a cheap Behringer head/cab to the PF500 along with the Ampeg PF410 bass cab & I am absolutely blown away. For the price range, I'm positive that there is no better sounding bass head. I highly recommend this amp to anyone who wants that classic Ampeg sound.

15 September 2014

Amp Sounds Great, first ran it into a PortaFlex 1x15 cab with horn, and then added a 4x10 cab along with it. Does what Ampeg is known for and does it well.

Product Description
Ampeg's Portaflex PF-500 bass head delivers a staggering 500W of power in an ultra-compact design providing pure Ampeg tone in an extremely portable package. Precise tone controls and gig-friendly input/output options provide ultimate flexibility. Pair it with Ampeg's PF Series flip-top cabinets for the vintage styling and portability of the iconic Portaflex originals. The tone stack on the PF-500 provides an extensive array of tone controls for shaping your sound. Bass, mid, and treble controls come standard with a 5-position mid switch for finding the perfect midrange level for your sound. Ultra Hi/Lo boosts add even more on-the-fly options, and an onboard compressor keeps your levels in check and your tone punchy and tight. At the gig or in the studio, the PF-500 is ready for action with a balanced direct out with pre/post-EQ selector, -40dB pad, and ground lift. An effects loop with dedicated mix control is footswitchable with the optional Ampeg AFP2 2-button switch.
  • 14"W x 3"H x 11"D
  • 11lb.
  • 500W RMS output @ 4 ohms
  • MOSFET preamp
  • Class D power amp
  • Bass, mid, treble tone controls with 5-position mid frequency control
  • Ultra Hi/Lo boosts
  • Onboard compressor
  • Balanced direct out with pre/post-EQ option, -40dB pad, and ground lift
  • FX loop with dedicated mix control (footswitchable with optional AFP2 switch)
  • Power amp in/ preamp out
  • 1/8" headphone out/line in
  • -15dB input pad
  • Mute (footswitchable with optional AFP2 switch)
  • Power supply: switching
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