Choose a built-in speaker by its condition at end of life, not day one. 24 real models compared by construction and power class, plus the 1.2x max-power rule ......
Choose a small speaker driver by what the amplifier can deliver. 24 smart home drivers compared by impedance and power class, plus the F0 test-voltage rule ......
Compact is a volume budget, not a thickness target. 24 compact speaker models ranked by total displaced volume, plus test-box decoding, standards and FAQ ......
Voice prompt or intercom? Three acoustic jobs, five specs that decide it, 22 real smart home speaker models with SPL and F0, standards and FAQ ......
Bare driver or box module? Five specs that decide it, three integration paths, 19 real internal speaker models with SPL and F0, standards and FAQ ......
In space-constrained devices, fit beats watts: the five specs that decide fit, four form-factor strategies, 18 real models from 2.2 mm thick, standards and FAQ ......
Choose a desktop AI robot speaker by fixing the echo budget first, then sizing sensitivity and cavity. Compares 12 production models, key specs and standards. ......