Came from a working RS-1 speaker. Resistance across voocecoil is 4Ω. The Infinity Woofer B160-6 / 333233-001 4.5” Woofer is a vintage audio component from the renowned brand Infinity. This model, B125-8, delivers rich and powerful sound quality, making it a great addition to any vintage audio setup. Perfect for enhancing the bass response and overall performance of your speakers, this woofer is sure to impress with its classic design and superior sound quality.