Ampeg PF-500 Portaflex 500W Bass Amp Head

Ampeg PF-500 Portaflex 500W Bass Amp Head

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SKU: AMPPF500 Category:

Ampeg Portaflex PF-500 Bass Amp Head weighs in at 11 pounds, and delivers a staggering 500W of power in an ultra-compact design giving you pure Ampeg tone in an extremely portable package. Precise tone controls and gig-friendly input/output options offer ultimate flexibility. Pair it with Ampeg’s PF Series flip-top cabinets for the vintage styling and portability of Ampeg’s iconic Portaflex originals.


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)


RMS power output: 500W @ 4 ohms

Preamp: MOSFET

Power amp: Class D

Tone controls: Bass, mid, treble

Mid-tone control: 5-position

Power supply: switching

Dimensions (WxHxD): 14 x 3 x 11″

Handling weight: 11 lbs / 5 kg

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