Crown IC150 Preamp - A Famous Consumer Model I've confirmed the sound output before listing. There's a slight crackling noise, but it fades away as you listen. I've checked the LINE and PONO inputs. No problems. (See photos) I think it's a great match for JAZZ and ROCK. It's an American model, so the sound is even better when boosted to 115v. It also works at 100v. It's in working condition. I think it's a great deal.