The middle child in the Portaflex Series, the Ampeg PF-500 sits between the PF-350 and the PF-350 and is stuffed with the vintage charm and modern features boasted by the series. In comparison with the PF-350, this model doesn’t just provide a more powerful sound but also crams in a truck load of additional features, both in terms of control and connectivity, which make it worth a lot more than just a second glance.
A combination of the vintage cool and modern features that is the signature of the series, the Ampeg PF-500 Portaflex Bass Amp Head gives the best of old and new in a tidy set up that many will envy.
Compact and lightweight (at just 11 lbs / 5 kg), this amp head is the perfect partner for Ampeg’s cabinets, as it comes readily-compatible with the simple but innovative fliptop feature. If you’re unsure what this, fliptop is great design addition that secures the amp head to the lid of the cabinet, which can then be turned upside down; storing the head inside the cab; making transportation easier.
Despite its small size and light weight, the Ampeg PF500 is incredibly powerful. Combining a MOSFET preamp with a Class-D power amplifier rated at a terrifying 500 watts, this little guy just got scary.
In-depth Control Panel
It was no understatement to say that the Ampeg PF 500 offers more features than its smaller brother, with the following controls on offer: Gain, bass, 5-position mid-tone, treble, volume, FX mix, compression, gain, ultra hi/lo boosts, footswitchable mute, ground lift, 0dB (line level)/-40 dB (mic level) switch, and a Post-EQ/Pre-EQ switch.
As with the controls, the Ampeg PF-500 Portaflex Bass Guitar Amplifier Head sees an extension of connectivity options compared with the already feature-rich 350 model.
Individual speakon (not available with the PF-350) and ¼” TS output jacks give connectivity to your speaker cabinet, with a rated power output of 500-watts rms into 4 ohms, or 300-watts rms into 8 ohms. There is also an XLR line output to connect up to an external mixer or a recorder, negating the need to mic up a speaker cab.
Other connectivity options the unit has in common with the PF-350 include: an effect loop, and an audio input and headphone output for silent practice. The Ampeg PF-500, however, also has a preamp out, power amp in, and footswitch connection options.
Manufacturer Ampeg Model PF-500 Portaflex Bass Amp Head Dimensions (H x W x D) 76 x 356 x 279 mm Weight 5 kg RMS power output 500W @ 4 ohms Preamp MOSFET Power amp Class D Controls Gain, Bass, 5-position mid-tone, treble, volume, FX mix, compression, gain, ultra hi/lo boosts, footswitchable mute, -15dB input pad Connectivity Balanced direct out with Pre/post EQ option, -40 dB pad, and Ground lift
1/8" headphone out/Line in
Power supply switching
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