Condition:Item is subject to minor cosmetic imperfections. Packaging may be in poor shape. The item displayed in the images may not be the actual item you receive. Based on the popular Tone Hammer pedal this superlight bass head combines 3 bands of flexible EQ, a colorful “Drive” control, and 500 watts of power in a 4 lb package. The Tone Hammer 500 will give you the legendary “Aguilar Sound” while still fitting into the accessory pouch of most gig bags the perfect choice for bass players on the go. Power Output: 500 watts into 4 ohms, 250 watts into 8 ohmsPreamp Section: Solid StatePower Section: Class DTransformer: Switching mode power supply (SMPS) EQ Section:Bass: /- 17 dB @ 40 HzMid Level: /- 16 dBMid Frequency: 180 Hz 1 kHzTreble: /- 14 dB @ 4 kHz Drive Control: Fully adjustable, featuring Aguilars proprietary AGS(adaptive gain shaping) circuit.Effects Loop: Series operation. Adds 6 dB of additional gain, making it useful for a broad range of effects units.Inputs: One 1/4″ input jack, compatible with all active and passive bassesSpeaker Outputs: Two Neutrik Speakon speaker outputsBalanced Output: XLR balanced output with pre/post EQ and ground lift switch, Tuner outputCooling: Two high quality whisper fans with thermal speed controlDimensions: 10.75W X 8.5D X 2.75HWarranty: Three year limited