Speaker and Amplifier Matching Without the Spec-Sheet Myths
Sensitivity, impedance minima and amplifier current explained with in-room measurements, including the cases where a bigger amplifier changes nothing at all.
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Every system plan, guide, comparison and measurement, newest edit first. Dates, sources and method notes sit on each page.
10 articles
Sensitivity, impedance minima and amplifier current explained with in-room measurements, including the cases where a bigger amplifier changes nothing at all.
How to spec a stereo chain from source to speakers: sensitivity, impedance dips, amplifier current, DAC output and seat geometry, with the failure case measured.
A room-first plan for a 5.1.2 system under 20 m2: budget split, channel order, wiring runs, subwoofer placement and the measurements that decide each step.
Why a range without a tolerance means nothing, how smoothing hides resonances, and the four chart features we check before publishing any speaker verdict.
Measured effects of height, tilt and crossover on speech intelligibility, plus the placement error that costs 4 dB at 2 kHz in a typical living room.
What IP ratings do and do not promise, why amplifier distance changes the wire gauge, and the three line items that usually double an outdoor audio budget.
What a height channel actually is, why elevation angle matters more than speaker count, and the ceiling conditions that make up-firing modules fail.
A repeatable 30-minute routine: find the modal peaks, set phase with a two-seat sweep, then verify the 40 to 80 Hz spread. No golden ears required.
The real difference is bass extension and usable output, not size. Here is the room-volume threshold, the measured SPL cost and the crossover point where it flips.
A numbered placement protocol for a 5.1.2 room: listening triangle, center height, subwoofer crawl and elevation angles, with the tolerances that matter.