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Ampeg PF-500 Portaflex 500W Bass Amp Head  

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Product #H71373
Top Rated

Overview

  • 500W RMS output @ 4 ohms
  • MOSFET preamp
  • Class D power amp
Description & Specs
  • MSRP:
    $559.99
  • Your Savings:
    - $160.00
  • Your Price:
    $39999
1 Restock From $379.99
1 Used From $371.99
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  • $399.99 Top Rated

    In stock

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    $379.99 Top Rated

    In stock

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Gold Coverage: (What’s This?)

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See All Ampeg Solid State Bass Amplifier Heads
Ampeg

Heavyweight history in a lightweight design.

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.

Features

  • 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
  • -15 dB input pad
  • Mute (footswitchable with optional AFP2 switch)

Travel light without sacrificing tone or power. Order your PF-500 today!

 

PF-500 Portaflex 500W Bass Amp Head Specifications:

  • 14"W x 3"H x 11"D
  • 11lb.
Customer Reviews
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Review Snapshot®

by PowerReviews
AmpegPF-500 Portaflex 500W Bass Amp Head
 
4.3

(based on 50 reviews)

Ratings Distribution

  • 5 Stars

     

    (32)

  • 4 Stars

     

    (9)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (4)

  • 1 Stars

     

    (3)

94%

of respondents would recommend this to a friend.

Pros

  • Portable (27)
  • Excellent sound (26)
  • Easy to use (20)
  • Good power output (20)
  • Warm / comfy (20)

Cons

    Best Uses

    • Performances (26)
    • Outdoor events / games (18)
    • Amateur recording (16)
    • Home studio (16)
    • Professional recording (9)
      • Reviewer Profile:
      • Experienced (23), Professional musician (10)

    Most Liked Positive Review

     

    Good value

    I have had this head for about a year and still cannot decide if I love it or just like it. The features are very well thought out and are well documented. When playing...Read complete review

    I have had this head for about a year and still cannot decide if I love it or just like it. The features are very well thought out and are well documented. When playing at controlled volumes and running out to the FOH system it is really really good. The issue I have is when I have a couple cabinets hooked up it just does not have that high current punch of a conventional amp. I play a BSX Allegro upright electric, a Fender Precision A/E fretless, or an old p-bass and all work well with it. I use it with a wide assortment of cabs, mainly when as a stand alone with a single Mark Bass 2 10. The Mark Bass is efficient enough that the little Ampeg never breathes hard, sounds fantastic , and never breaks a sweat. When I hook up a second 2 10 it's weird. If both are connected to the amp it will start cutting out at even moderate volume. If the cabs
    are daisey chained it will not cut out but just kind of loses low end punch. I also
    have an old Ampeg PR1528HE that is a beast and the Ampeg falls flat trying to
    power it at high volume, especially when I use one of the 2 10 s on top. I have
    gone back to using the Ampeg as a preamplifier and running a 900 watt stereo
    amp to the cabs. That combo kills but it kind of defeats the purpose of the light
    weight having to haul around another 4 space rack and with the weird size of the
    Ampeg it just makes for kind of a messy set up. I actually have been playing around with just velcroing it to the power amp so it can sit in the small rack for portability and just using it as a pre amp, it really does sound good.I would definately still buy another one as it is a really cool little amp. It just has limitations. I also have a Phil Jones Suitcase with a 4b cabinet and for jazz or small gigs it kills the Ampeg on all counts. Granted it is close to $2000 so it should. It kind of leaves the Ampeg in the middle, not as good for smaller gigs and unable to do it alone on big ones.

    VS

    Most Liked Negative Review

     

    Very disappointed not the AMPEG of old.

    After using for about 15 minutes it sounded great and then it died, they replaced it right away. I didn't gig with it for a while and when I did, it died again....Read complete review

    After using for about 15 minutes it sounded great and then it died, they replaced it right away. I didn't gig with it for a while and when I did, it died again. This time they had me take it to Ampeg repair shop and 6 weeks later still no sigh of it ( still wating for Parts ).
    Has nice features just like my SVT. Lots of the same control setting and nice and lite the cab and amp weight less than my SVT head. To bad it failed two times right in the middle of gigs.
    Looks great the cab rattles when turned up. This is not the Ampeg I know and Love.
    Fair price should have spend more money for something better.

    Reviewed by 50 customers

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    Displaying reviews 1-10

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    4.0

    EXCELLENT HEAD!!!

    By Gravy

    from El Centro, Ca

    About Me Experienced

    Ask me a question

    Pros

    • Easy To Use
    • Excellent Sound
    • Good Warmth
    • Portable
    • Powerful

    Cons

      Best Uses

      • Amateur Recording
      • Events
      • Home Studio
      • Performances
      • Professional Recording

      Comments about Ampeg PF-500 Portaflex 500W Bass Amp Head:

      Well I bought this amp about a month and a half ago and right out of the box I loved how lightweight it was. Upon plugging it in and finding the tone I wanted I must say this little guy packs a pretty mean punch. It's really warm, bright and the low end is very much there. This thing also takes distortion very well. Anytime I turn on the MXR M-80 distortion the thing just kills! I used to have an SVT3 before it took a dump on me and it never sounded that good though it. ONLY BEEF! The fan went out and had to send it back but since then it's been holding up. I'm very impressed and I really hope this little sticks with me for some time.

      Comment on this review

       
      5.0

      dont judge a book by its cover.

      By mt.63

      from fort mill SC

      About Me Experienced

      Verified Buyer

      Pros

      • Easy To Use
      • Excellent Sound
      • Good Warmth
      • Great sound
      • Portable
      • Powerful

      Cons

        Best Uses

          Comments about Ampeg PF-500 Portaflex 500W Bass Amp Head:

          Has a very warm clear sound.

          Comment on this review

           
          4.0

          NICE AMP FOR THE PRICE

          By bobby dean

          from illinois

          About Me Professional Musician

          Verified Reviewer

          Pros

          • Easy Control Panel Light

          Cons

            Best Uses

              Comments about Ampeg PF-500 Portaflex 500W Bass Amp Head:

              USED TO BE AN AVID ACOUSTIC AMP MAN THIS IS MY DELVE INTO THE AMPEG EXPERIENCE AND COULDN'T BE HAPPIER, DON'T LET THE LIGHT WEIGHT FOOL YOU THIS PACKS PLENTY OF PUNCH FOR YOUR BUCK, BEAUTIFUL CEAN CRISP TONES AND ROOM TO SUIT ANY STYLE YOU WANNA PLAY, THE PRE AMP IN AND OUT IS A NICE FEATURE AS IS THE OPTION OF 1/4 INCH OR SPRAERKRON CONNECTION, IF YOU'RE LOOKING FOR YOUR FIRST AMPEG I WOULD RECOMEND THIS MODEL.,

              Comment on this review

              (0 of 1 customers found this review helpful)

               
              1.0

              Wanted it but it didn't work.

              By Bendover

              from Olathe, Kansas

              About Me Experienced

              Verified Buyer

              Pros

              • Na

              Cons

              • NA

              Best Uses

              • Na

              Comments about Ampeg PF-500 Portaflex 500W Bass Amp Head:

              I received the bass head quickly so shipping was good. Unfortunately, the amp cut in and out right out of the box, so it was basically unuseable. I contacted Customer Service who very quickly, efficiently, and pleasantly helped me with a refund and paid shipping return.

              Comment on this review

               
              2.0

              Stay away from used PF-500

              By ifreemantoo

              from Central Ohio

              About Me Experienced

              Ask me a question

              Verified Buyer

              Pros

              • Easy To Use
              • Excellent Sound
              • Good Warmth
              • Portable
              • Powerful

              Cons

              • Faulty Protection Circuit

              Best Uses

              • Amateur Recording
              • Events
              • Home Studio
              • Mobile DJ
              • Performances
              • Professional Recording

              Comments about Ampeg PF-500 Portaflex 500W Bass Amp Head:

              Just wouldn't keep working for very long. Research seems indicates some of them just shut down. Musician's Friend replace with a new one at a very good price. So far the new seems good.

              I would reconmend a new PF-500

              Comment on this review

               
              4.0

              Great Sound but time will tell

              By ifreemantoo

              from Central Ohio

              About Me Experienced

              Ask me a question

              Verified Buyer

              Pros

              • Easy To Use
              • Excellent Sound
              • Good Warmth
              • Portable
              • Powerful

              Cons

                Best Uses

                • Amateur Recording
                • Events
                • Home Studio
                • Performances
                • Professional Recording

                Comments about Ampeg PF-500 Portaflex 500W Bass Amp Head:

                This is my 2nd PF-500. The 1st one was used and would cut out randomly. After researching this problem, it could be that one or two of it's protection circuits may be overly sensitive.

                Having said that, the new one is very warm, powerful and light. I'm running it through a GK cab with a Carvin NE15-8 600W Neodymiun 15 Inch Woofer in it. At 300 watts in sounds great.

                I haven't had it out in a big venue to really push it yet, but so far so good; time will tell.

                Musician's Friend was really great at working out a replacement for the faulty amp.

                Comment on this review

                 
                5.0

                Fun and affordable bass head!

                By Derrin C.

                from Champaign, Il

                About Me Experienced

                Pros

                • Easy To Use
                • Excellent Sound
                • Good Warmth
                • Portable
                • Powerful

                Cons

                  Best Uses

                  • Amateur Recording
                  • Home Studio
                  • Performances

                  Comments about Ampeg PF-500 Portaflex 500W Bass Amp Head:

                  I've been playing through this thing for about 8 months now and I have nothing but good things to say about it. Its been hauled around in a backpack, left in the cold, pushed up to 9 and this thing does exactly what I need it to do. I've paired this with my Ashdown ABM 410h and a Sterling Ray 34 and it fills a really large room with ease. As far as tone you can basically do whatever you want with it. I play anything from punk to stoner/doom metal and you just have to turn a couple of knobs and you've dialed in whatever you need. For the price you really can't go wrong with this head!

                  Comment on this review

                   
                  5.0

                  Power enough to fulfill live performance

                  By Asmilindog

                  from Arlington, Texas

                  About Me Professional Musician

                  Verified Buyer

                  Pros

                  • 2 Outputs
                  • Adjustable Compression
                  • All Tone Changes Noticed
                  • Clip Light
                  • Compact Yet Sturdy
                  • Lots Of Headroom
                  • Loud
                  • Ultra Buttons
                  • Wide Range Of Tones

                  Cons

                    Best Uses

                    • Amateur Recording
                    • Events
                    • Performances
                    • Professional Recording

                    Comments about Ampeg PF-500 Portaflex 500W Bass Amp Head:

                    When connected to correct ohm cabinets this amp is perfect for me. Not too big plus not too small. The sound it pushes appears to be exactly what I was hoping for. I use it in conjunction with 2 cabs, a 4x12 Trace Eliott and a 1x15 Peavey Headliner both are 8 ohm. Can use this with dual cabs that are 8 ohms each or can use a single 8 ohm or a single 4 ohm but DO NOT use an 8 and a 4 ohm together, will see it clip and then it will fry. The 2 cabs allows it to reach its full power ability which when reached literally booms with great thumping bass. I like it and hopefully will stay smart and do the ohm math right.

                    Comment on this review

                     
                    2.0

                    We'll see. 1st one keeps cutting off.

                    By ifreemantoo

                    from Central Ohio

                    About Me Experienced

                    Ask me a question

                    Pros

                    • Easy To Use
                    • Excellent Sound
                    • Good Warmth
                    • Light Weight 11lbs
                    • Portable
                    • Powerful

                    Cons

                      Best Uses

                      • Amateur Recording
                      • Events
                      • Home Studio
                      • Performances

                      Comments about Ampeg PF-500 Portaflex 500W Bass Amp Head:

                      I have had the Ampeg Micro-Bass for a few years; great little light weight amp still works great. Inspired me to buy the PF-500. The PF-500 has a warm tone and plenty of power. I'm running it through a GK cab with a 15", 8 ohm, 600 watt Carvin speaker. Warm tone that is when it's working.

                      It's a bit disappointing as it keeps cutting out and the Fault light turns on. The light goes back on when the sound comes back. I'm returning this one. Musician's Friend is sending me another one.

                      Further reading about this problem suggests to me that either 1) the over heating protection is faulty or 2) (as some suggest) the protection circuit for power fluctuations is oversensitive/faulty (I don't know that there is one, but TalkBass suggested so as well as someone commenting in MF). The reason I mentioned 2) is that it was suggested that a power conditioner of some kind be used and would help stop Fault cut off. I have a Furman which I did use and at least for about 25 minutes or so I had no failures, so there may be some truth to that.

                      At this moment I still recommend Ampeg. Rating will change on the PF-500 if the new amp measures up as I think it will.

                      Comment on this review

                      (2 of 2 customers found this review helpful)

                       
                      4.0

                      Worth the money.

                      By Martin-yI-.V

                      from Dallas

                      About Me Professional Musician

                      Verified Buyer

                      Pros

                      • Easy To Use
                      • Portable

                      Cons

                        Best Uses

                          Comments about Ampeg PF-500 Portaflex 500W Bass Amp Head:

                          Compact and relatively lightweight. Plenty of input and output options and has an effects loop and more gizmos than the 300 watt version. The control layout is similar to the SVT. The midrange frequency selector switch does little to vary midrange tone, though. The compressor works very well. Seems powerful enough. An optional carrying case would be a good feature.

                          Comment on this review

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