Intambo yokubona—ebizwa nangokuthi ikhebuli ye-TOSLINK noma ikhebula lomsindo obonakalayo—isebenzisa ama-pulses okukhanya engilazini noma ku-plastic fiber core ukuze idlulise umsindo wedijithali ngaphandle kokuphazanyiswa yi-electromagnetic.
Izintambo zokubona zisekela isitiriyo se-PCM, i-Dolby Digital 2.0–5.1, i-DTS Digital Surround, i-DTS-ES Matrix/Discrete 6.1, ne-DTS 96/24, kodwa hhayi amakhodekhi angalahleki njenge-Dolby TrueHD, DTS-HD MA, noma amafomethi agxilile njenge-Dolby Atmos.