NORWOOD, MA (5/5/08) -- Atlantic Technology has introduced a two dipole/bipole switchable surround speakers in its IWTS line (In Wall Theater System) of architectural speakers for home theater. Both the IWTS-30 SR and the IWTS-14 SR feature dual two-way driver arrays facing front and rear to fill the listening area with ambient sound for a remarkably convincing, lifelike theater soundfield. The IWTS-30 SR has earned THX Ultra certification, a testimony to its remarkable performance and high output capabilities. The IWTS 14 SR (which is not THX Certified) shares the capabilities and feature set of its sibling, but with slightly less extended bass output.