Ampeg PF-500 Portaflex

Bass Head

  • Power: 500W into 4Ω, 300W into 8Ω
  • Dual JFET precursor
  • Class D amplifier
  • Variable compressor
  • Controls for gain, bass, mid, treble and volume
  • Mid-tone control: 5-position
  • Ultra hi/lo boost
  • Balanced direct out (XLR)
  • Pre / post EQ option
  • -40 dB pad
  • Ground lift
  • FX loop with adjustable mix, switchable per foot
  • Audio in (for practice, e.g. with MP3 player)
  • Headphone out, 15dB input pad
  • Mute (switchable per foot)
  • Power amp in
  • Preamp out
  • Tuner out
  • Speaker outputs: Speaker Twist and jack
  • Dimensions (H x W x D): 76.20 x 355.60 x 279.40 mm
  • Weight: 5 kg
No JavaScript? No Audio Samples! :-(

Audio Examples

 
0:00
  • Metal
  • Metal Line
  • Rock
  • Rock Line
  • Slap
  • Slap Line

Further Information

Power 500 W
Equalizer 3-Band
Compressor Yes
Limiter Yes
Effects Processor No
External effect loops Yes
Speaker Connector Jack, Speakon
Headphone Output Yes
DI Output Yes
Tuner Out Yes
Rack mount No

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108 Customer Ratings:
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4.6 /5
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Total
features
sound
quality
handling
A good basic amp
Intercept, 12.01.2015
Before getting the PF500 I had been using an Ampeg SVT200T solid state full size 350 watt head for 20+ years. I loved that amp and frankly still would if it wasn't so damn big & heavy. So I was hoping that the PF500 would have the same tone. Sadly it doesn't really and the EQ is much less useful. The Ultra Lo and Ultra Hi buttons are useless because the Ultra Lo also adds a high boost (!). The compressor isn't good enough really as a bass really needs a 2 band compressor for best performance. If I was Ampeg I'd ditch the compressor and the FX blend knob and use the spare space for 2 more EQ bands.

Having said all this, I do like the PF500 because it has been reliable and sounds good when driven with a bass with good active EQ. It also fits nicely into the gig bag for the TC Electronic RH450. Paired with a couple of Gallien Krueger Neo 112 Mk2 cabinets it makes a nice compact rig that can be carried from car to venue in 1 trip.

PS: The front panel LED is pink/purple (not blue) ;-)
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Total
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Real Ampeg tone!
Zesztergar, 16.10.2018
Well I waited to have some gigs with this "little" one before writing a review. I chose this head because whenever I played an Ampeg rig it was the perfect tone and feels for me, nothing came close to it. At first I was a bit skeptical about the size and weight - it can not deliver the power and tone I need but I was totally wrong. I use it with an SVT410HE + a Hartke HD210 cabs, so I have a 6x10" at 4 ohms, playing a loud metal band with two guitars (Mesa Dual Rectifier + Kemper) and my mates complain about my volume being too loud (gain and master volume at 11 o'clock). I don't had any problems with the head cutting out (many horror stories you can read on the internet) I guess it can happen if the gain is not set properly - you have to adjust the gain until the point the peak light start flashing, than back it up a bit. The other thing is the mid control, this only works if the level is boosted or cut, if you leave it around 12 o'clock you can change frequencies and nothing will happen. I recomend to purchase it with the PF500/800 bag. All in all this is the best Class D amp if you like the Ampeg tone. Check it out.
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Amazing sound
Bassturbate, 12.04.2020
Used mainly on stage
Only one Con, a little bit loudy fan but the amp provides great sound its my to go amp for gigs in small and big venues also!
Useful options on the back, the pad helped a lot quite a few times, speaok on and jack for your cabinet!
im telling you again this thing is great!
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Oh My God...
leamyjj, 26.11.2019
this amp has completely surpassed my expectations. The tone that it can produce is so broad, while still holding onto that distinct "Ampeg sound". I could not recommened this amp enough.
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B-Stock from $299 available
$349 €318.49
Plus $49.30 shipping

The price in USD is a guideline price only!

Available immediately
Available immediately

This item is in stock and can be dispatched immediately.

Standard Delivery Times
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