![PMC's OB1i one of many takes on Transmission Line loudspeaker design | Speaker design, Speaker box design, Diy speakers PMC's OB1i one of many takes on Transmission Line loudspeaker design | Speaker design, Speaker box design, Diy speakers](https://i.pinimg.com/originals/c6/fb/4b/c6fb4b0dbe72f02b5003ce52a59e8871.jpg)
PMC's OB1i one of many takes on Transmission Line loudspeaker design | Speaker design, Speaker box design, Diy speakers
PMC Speakers - Advanced Transmission Line (ATL). Unique to PMC it forms the core of all of our loudspeakers and it's how they produce their impressively low, controlled bass, inherently low distortion
![Professional Monitor Company - Advanced Transmission Line system | Fazer caixa de som, Caixa de som automotivo, Som de casa Professional Monitor Company - Advanced Transmission Line system | Fazer caixa de som, Caixa de som automotivo, Som de casa](https://i.pinimg.com/564x/df/35/f4/df35f4609568f785d9a3562989a000de.jpg)