Sonic 23 Specifications: L.O.A.: 23' 0" (7.01 m) L.W.L.: 20" 0" (6.10 m) Beam: 7' 7" (2.30 m) Draft: 3' 9" (1.14 m) Displacement: 3400 lbs. (1542 kg.) Ballast: 1500 lbs. (680 kg.) Motor: outboard (8 to 9.9 hp). Headroom: 6' 1" (with pop top) Berths: 4 Rating  (PHRF-LO) : 234 Price range: $7,000 to $9,000 Many people regard the Sonic as a close approximation of the very popular Tanzer 22, and the hull and sail plan of these two boats are believed to be very similar. However, the Sonic 23 was designed from scratch by Joseph D'Alessio, and it comes with a sightly larger cabin with a better layout. (It has sitting headroom which increases to 6' with the pop top.). The Sonic's interior room may give it the edge over the Tanzer 22 which is known for being a good sailing boat, but which suffers from cabin which appears a little cramped. From this perspective, the Sonic may be a better choice for cruising. On the other hand, the disadvantages of buying a Sonic 23 include not being able to participate in the many Tanzer 22 one-design racing fleets, and not being part of a very active network of Tanzer 22 owners across North America. by Michael McGoldrick. [ Copyright & Disclaimer ]