The Chorus: Now with TL-ABC Transmission Line Bass Tuning
As of December 2017, all Chorus speakers feature TL-ABC transmission line tuning. Changes in the demensions of the Chorus cabinet have also been made. TL-ABC is a way of lowering bass response by fine tuning the transmission line's response by adding a device (TL-ABC) to the end of the transmission line. TL-ABC can lower bass response by as much as one octave. For example, if the low bass response of a speaker is 50 Hz, TL-ABC can potentially lower its bass response to 25 Hz. As a result the TL-ABC application, the latest Chorus has noticeably more lower base than the previous model. TL-ABC is proprietary NSMT Loudspeaker technology.