8" Bass Guitar Replacement Woofer - 8 Ohms - Model Number: Jolt 8, 175 Watts RMS - 350 Watts Peak, Bass Guitar Replacement Woofer, 8 Ohm, 75 Hz-5K Hz, 91 dB, 40 ounce magnet, 2" Voice Coil, Pressed Steel Chassis, Paper Cone/Cloth Edge, Brand New, One Year Warranty. Whether you are building your own bass guitar cabinet or replacing an old woofer, this 8" speaker woofer is what you need. The Jolt series are awesome woofers that produce deep lows and clear tones. Pressed Steel chassis. These are ideal for bass guitar rigs. Great for upgrading your existing cabinets or building you own. The Jolt series packs tons of punch! With your purchase, you will receive one 8" steel frame speaker as pictured and described above. So, put it in your cart today and get ready for years of trouble-free, crystal clear sound!