Check the listing for details. Replacement Driver Carvin PL400 Piezo Horn Driver For 832, 822, 742, 722. Condition: New. Listed at 16.99 USD. This Is An AFTERMARKET Carvin PL400 Piezo Horn Driver. For 832, 822, 742, 722 Cabinets. Product Details : Piezo Horn Driver Similar to KSN1188A The PZ1188 is specifically designed and engineered to be a replacement for the very popular KSN1188A piezo horn drivers from days gone by. Using a 22 mm ceramic piezo element, follow Standard 1-3/8" 18-TPI threads facilitate use with 1" horns. With a wide frequency range and ample power handling, this is also a prime candidate for new designs, especially if the crossover requirements must be kept to an absolute minimum. This 100 watt driver incorporates advanced protective circuitry which allows it to be used at power levels of up to 400 watts. Specifications: • Power handling: 100 watts max • Frequency response: 800-20,000 Hz • SPL: 93 dB 1W/1m • Dimensions: Diameter: 3-7/8", Depth: 3". Weight : 0.4 lbs.OverviewFinally, an affordable drop-in replacement for those vintage KSN1188A piezos! GRS piezo tweeters are built using a 22 mm ceramic piezo element, to the original specifications.HighlightsPerfect replacement for many classic loudspeakersNo crossover required - great for simple, economical designsGreat for super tweeter applications in DJ/Karaoke systemsEqual or superior to products being sold for 8-10 times our price!22 mm ceramic piezo element that follows original specs