Ampeg Portaflex 500

The Ampeg Portaflex PF-500 bass head delivers 500 Watts of power in an compact and portable package.

The PF-500 harnesses the performance of Ampeg’s highly-researched MOSFET preamp, which is claimed to set new standards for solid-state tone. Features include a 5-position midrange control, ultra hi/lo boosts and direct out with ground lift and pad. There’s also an onboard compression for a tighter, cleaner tone at high volumes.

• RMS power output: 500 Watts into 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