Discussion
What is the practical consequence of SSB's need for linear amplification?
Answer: A
Linear class AB operation is markedly less efficient than the class C stages an unmodulated or angle-modulated carrier permits, so an SSB transmitter runs hotter and draws more supply power for a given output. That is the price of putting information in the envelope. Bandwidth is narrower than DSB-SC, not wider. Its receiver uses a product detector rather than a diode. And solid-state linear amplifiers are entirely standard.
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