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AMPEG PF-500 Portaflex Bass Amplifier Head 500W

Ampeg PF-500 Portaflex front

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Item # PF-500

MSRP: $559.99

Your Savings: -$160.00

PAL Price: $399.99

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Quick Overview

Ampeg PF-500 Portaflex

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 their PF Series flip-top cabinets for the vintage styling and portability of Ampeg’s iconic Portaflex originals.


  • Selectable -15 dB input pad

  • Gain Control

  • Bass, Mid, and Treble controls

  • Master volume control

  • Peak LED

  • Stereo 1/8" auxillary input

  • Headphone output

  • Effects loop with separate send and return jacks

  • Balanced XLR line output

  • Lightweight and fan-cooled switching power supply

  • Voltage selector switch

  • Dual JFET preamp

  • Mute Switch

  • Dual-Function mute and peak LED

  • On-board variable compressor

  • Ultra Lo and Ultra Hi switches

  • 5-way Midway Frequency control

  • FX Mix control

  • Tuner Output

  • Preamp Out and Preamp In jacks

  • Footswitch jack

  • Single Speakon & 1/4" speaker output jacks

  • Class-D power amplifier rated at 500 watts rms into 4 ohms

  • XLR Line Out features:

  • Pre/Post EQ

  • -40dB pad (mic/line level)

  • Ground Lift


  • 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

  • Pre/post EQ option

  • -40 dB pad

  • Ground lift

  • 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

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