Ampeg PF-500 500-Watt Portaflex Bass Head

Average User Rating:
3.77778/5,
  • Power:
    500W @ 4 ohms, Class D
    Size:
    3 x 14 x 11
    EQ / Controls:
    Bass, Mid, Treble, Mid-Tone control: 5-position, Ultra Lo/Hi boosts
    Price:
    $399
    Other Specs:
    [LIST]
    [*]RMS power output: 500W @ 4 ohms
    [*]Preamp: MOSFET
    [*]Power amp: Class D
    [*]Tone controls: Bass, mid, treble
    [*]Mid-tone control: 5-position
    [*]Ultra Hi/Lo boosts
    [*]Onboard compressor
    [*]Balanced direct out
    [LIST]
    [*]Pre/post EQ option
    [*]-40 dB pad
    [*]Ground lift
    [/LIST]
    [*]FX loop with dedicated mix control (footswitchable)
    [*]Power amp in/ preamp out
    [*]1/8” headphone out / line in
    [*]-15 dB input pad
    [*]Mute (footswitchable)
    [*]Power supply: switching
    [*]Dimensions ( H x W x D inches): 3 x 14 x 11
    [*]Handling weight: 11 lbs / 5 kg
    [/LIST]
    88532-7bda7539758bc068683bf62ff0fc42de.jpg pf-500_3qtrleft.jpg
Ian_H likes this.

Recent User Reviews

  1. DirtDog
    5/5,
    "Great Portable Head"
    Pros - Weight
    Tone
    Looks
    Controls
    Cons - DI out + Pre-Post EQ button noise issues
    Been using the PF-500 for a number of years now (with the matching 15" cabinet). For the price, this a very decent amplifier in a moderate volume, five piece country band. This amp has always performed next to flawlessly. One niggle is the DI out; at times, I need to toggle the Pre- Post-EQ button to get a signal out to the board. Not sure why this is, but when doing so, ensure that you have the PA gain turned down when doing so - the button generate a signficant "pop" that I suspect led to a subwoofer failure on one PA system I connected to.

    Other than, a fine little amp for middle of the road tone suitable for classic rock, country and blues. Light weight and quite robust construction. I don't baby my amp and it's always done what I asked it to do.
    Price Paid:
    399
  2. kevbassman
    4/5,
    "Thought this was my main amp"
    Sound:
    5/5,
    Build Quality:
    4/5,
    Features:
    4/5,
    Value:
    4/5,
    Pros - Love the flip top lid, which holds your amp. End of gig, just flip it over & you're set. No need for a amp bag, cover, etc. Loved the Portaflex theme.
    Cons - PF series only carries a 2 year warranty. My PF 500 was alittle past 5 years old when the amp went on me. The fan kept cutting out once the instrument cable was connected.
    This was my work horse for the last 5 years. I used this with the PF-115HE cabinet and the sounds were amazing. My main axe is a Nordy VJ4, passive EQ, which this amp made sound like a million bucks. (The Nordy is the best bass I've ever played). No matter what bass, thios amp will make it sound good with all the EQ options.

    My PF 500 was alittle past 5 years old when the amp went on me. The fan kept cutting out once the instrument cable was connected. I contacted Ampeg (LOUD industries) and was told my amp was made in 2010 but I bought it in 2011.

    Ampeg disappointed me in the amp basically went on me after 5 years.

    I purchased a new Ampeg PF 800 as I still love the flip top & the Portaflex series, but if this doesn't last.........I don't think I'll purchase a Ampeg again. I also own the Ampeg Micro -VR amp & 2 cabs (mini me SVT) that I love.
    Price Paid:
    $350.00
  3. Mick51
    1/5,
    "Too Bad"
    Sound:
    1/5,
    Build Quality:
    1/5,
    Value:
    1/5,
    Pros - It looked cool with the two cabs
    Cons - I got absolutely no sound out of it at a gig and I was sitting in front of it Good thing I new the tunes because the DI was operational
    Got rid of it and picked up The Fender Rumble V3 500 watt combo and bought the 1x15 extension NOW EVERYONE HEARS ME
    Sorry Ampeg didn't test the 500 Head More I even called Ampeg and I brought it to a service center and they couldn't find any problems and I bought larger gauge cables and well too bad I really wanted that amp to work I loved the old school look and the head/cabinets were the perfect weight Oh Well
    Price Paid:
    500
    pedroims likes this.

User Comments

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  1. DirtDog
    Been using the PF-500 for a number of years now (with the matching 15" cabinet). For the price, this a very decent amplifier in a moderate volume, five piece country band. This amp has always performed next to flawlessly. One niggle is the DI out; at times, I need to toggle the Pre- Post-EQ button to get a signal out to the board. Not sure why this is, but when doing so, ensure that you have the PA gain turned down when doing so - the button generate a signficant "pop" that I suspect led to a subwoofer failure on one PA system I connected to.

    Other than, a fine little amp for middle of the road tone suitable for classic rock, country and blues. Light weight and quite robust construction. I don't baby my amp and it's always done what I asked it to do.
  2. okcrum
    I've had a pair of PF-500s for going on 4 years now. They've both worked flawlessly. They're revision D, the earliest version which fixed the teething problems the early versions had. I bought one of my amps as a return from MF. I managed to track down the TBer who returned it, who swore the mid control didn't work. It's still working. That amp got loaned out to a friend when his MB800 failed.

    There's a reason these were the best selling bass amps in the world for several years.
  3. MarkH_129
    I've been rocking my PF500 and PF115-HE for two years now. I did have to send it in for repair of a cold solder joint about 2 months after I got it (repair done under warranty of course), but it has been trouble free since. I use it for practice and gigs playing with a loud drummer and two electric guitar players. It has enough power to keep up with all of those guys, and if you need to go into the PA you have a DI built in. It's got the Ampeg sound, it's really portable, and fits in the trunk of my car.
  4. sharktwain_bigdaddy
    I'm thinking about purchasing this head to match with a GK 4x10. My band has a subwoofer (1x18) i believe, and we run that out of the mixer board. My question is, Should i purchase a 4ohm cab or an 8 ohm cab?

    Thanks in advance.
  5. Michael Sayers
    6 months into a "new out of the box" PF 500, no problems yet. Great head for the price. Lots of power, easy to dial in and light weight. Goes great with the PF cabinet series.
    1. paul
      Hey Michael! Want to help test the reviews? Click the stars above the comments to "rate and review" this head. Let me know if you hit any issues! Thanks!
      paul, Apr 5, 2015
    2. Michael Sayers
      No Issues
      Michael Sayers, Apr 6, 2015
    3. paul
      Great thanks!
      paul, Apr 6, 2015