The Ampeg PF-800 delivers the superior performance of Ampegs Portaflex Series bass heads in an ultra-compact 800 watt design. With Class-D power and knobs galore the PF-800 packs a mean punch with a wide variety of tones at your disposal. The switching power supply keeps the weight low without sacrificing power output or Ampegs legendary sound quality. Portable and powerful Ampeg designed and built the original Portaflex Series over 50 years ago. Perfect for power-hungry bassists that demand uncompromising tone plug in a pair of Portaflex bass enclosures to the 800 watt PF-800 for a vintage-style rig that is extremely powerful portable and undeniably Ampeg. Specifications RMS Power Output: 800W @ 4 ohms Preamp: MOSFET Power Amp: Class D Tone Controls: Bass Mid Treble Mid-tone control: 5-position Boost: Ultra High/Lo boost Compressor: On-Board Compressor Balanced Direct Out: Pre/post EQ option -40 dB pad Ground lift FX: FX loop with dedicated mix control (foot switchable) Inputs: Power amp in Line in -15 dB input pad Outputs: Preamp out 1/8″ headphone out Mute: Foot switchable Power supply: switching Dimensions (H x W x D inches): 3 x 15 x 11 Weight (kg): 5.35kg