Audio Speaker Resistance-Matching Network
A company is producing an interface network that they claim would result in an RIN of 600 Ω ± 2% and ROUT of 16, 8, or 4 Ω ± 2%-depending on whether the connected speakers are 16, 8, or 4 Ω-selectable via a built-in switch.
The design is shown in given Figure. Prove or disprove their claim.
