I purchased this about a year ago, but I've stored it without using it much, so I think it's in good condition. Also, there's no crackling in the volume, and it's in good working order. ... A standard, great bass amp perfect for home practice. It features a simple 3-band EQ, a headphone output, and an AUX IN. Furthermore, the volume of the AUX input can be adjusted on the amp itself.