Combining twin 12” drivers as used in the Res 1 with the 90° dispersion 5“ from the Res 1.5, the Res 1.5TT can be neatly installed tight against a ceiling providing good coverage due to the built-in downward angle of the devices. Res 1.5TT's powerful bass response can be further extended with a wide range of Funktion-One bass enclosures, particularly the BR Range and F Series.