I am selling this item because I no longer use it. Power has been confirmed. There are no noticeable scratches or stains. The box and packaging materials have deteriorated significantly over time. Please be aware of this. A warranty card is included. If you have any questions, please write them in the comments section. BASSIQ with triple envelope filter function, THRESHOLD and ATTACK adjustable. - Model name: BASSIQ - Type: Triple Envelope Filter - Functions: THRESHOLD, ATTACK, MODE settings - Connection type: TRUE BYPASS - Included items: Instruction manual, original box Thank you for looking.