Made in June 1998 - Brand: Ibanez - Model: IBZ3B - Input: INPUT - Headphone Jack: PHONES - Master Volume: MASTER - Midrange Adjustment: MID - Treble Adjustment: TREBLE - Bass Adjustment: BASS - Output: 10W - Speaker: 6.5 inch - Size: W265xH290xD190mm - Weight: 5.4kg - No accessories My father-in-law bought this to increase the volume of a small radio-cassette player and used it a few times. He did not use it for bass. I tested it with an electric guitar to confirm its operation, and it works without any problems. Thank you for looking. *Please understand that this item has been stored normally for a long period of time. *Instant purchase without comment is OK! We ship as quickly as possible using anonymous Mercari shipping, but depending on the item, the cheapest shipping method may be used. *We may reuse cardboard boxes and other materials from online shopping for packaging.