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Ampeg PF-500 500-Watt Portaflex Bass Head

Average User Rating:
3.92308/5,
  • 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. southpaw723
    4/5,
    "Solid amp"
    Sound:
    4/5,
    Build Quality:
    5/5,
    Features:
    5/5,
    Value:
    5/5,
    Pros - Sounds good, great portability.
    Cons - Midrange selector
    Bought this amp brand new and have had it for almost three years. I've never had a problem with it, it's been super reliable. The flip top comes in handy, extremely portable unit. Not a fan of the mids selector switch, it's not very responsive. Can't really get those mids that help you cut through in a mix. Other than that, it sounds great for recording, looks cool, and I'd recommend it to other bassists.
    Price Paid:
    $700 with 2x10 cab
  2. merejo_Herm
    5/5,
    "Small,Portable.powerful great tone quality"
    Sound:
    5/5,
    Build Quality:
    5/5,
    Features:
    5/5,
    Value:
    4/5,
    Pros - Small a little light weight,great sounding features and controls
    Cons - Fan noise can get to you
    Got this baby as a backup but it wind up being my preferred rig.
    I just love he power and the tone it produces on all of my Basses including acoustics.small enough to put in my backpacks,but powerful enough to make a decent statement in all my gigs.
    Price Paid:
    279.00
  3. MBASSTT
    4/5,
    "Classic Ampeg sound."
    Sound:
    5/5,
    Build Quality:
    4/5,
    Features:
    4/5,
    Value:
    4/5,
    Pros - Light weight, great tone very easy to dial in.
    Love this amp. Never an issue and always delivers the goods. Ampeg tone all the way! Plenty of volume to work with a rock band with 2 guitars.
    Price Paid:
    $399

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