Audio Engineering Library
A free, ad-free deep-dive reference on audio engineering
How RF noise from an Ethernet cable reaches the analog stage of a DAC — the mechanism step by step, with equations and measurements
S/PDIF, AES/EBU, TOSLINK, USB — which noise path each interface opens, and how jitter limits fidelity, with equations and measurements
Why matched slopes still cancel — phase at the crossover, lobing, smear, and the knot where you align phase then "fix time" and it drifts again
T/S isn't a spec sheet — it's a model that predicts how a driver behaves in a box that doesn't exist yet. Mass, spring, damping and motor woven into one web.
A datasheet isn't an answer key — it's a set of questions. Read it like an engineer: separate engineering from marketing, see measurement conditions, tolerance, and what it deliberately leaves out.
Resonance is not the point where control is lost — the mechanism of mass–compliance cancellation, why impedance peaks instead of shorting, and how the amplifier controls it through back-EMF
The triangle that shapes bass — the impedance curve as a dialogue between driver and amplifier, with the enclosure writing the script