Sound
The LZ A4 presents a
simple yet well done filter tuning system. It consists of 3 bass filters for
the dynamic driver placed at the rear/outer part of the shells, and 6 nozzles for the dual BA driver at the front/inner part for midrange and mainly treble tuning.
While the frontal filters are needed as a nozzle, the bass port can be used
without a rear filter as an extra tuning option. The main effect of the different
combinations of front and back filters is on the quantity of lows and highs,
with some changes on the midrange region, but in terms of quality and extension
the sound remains mostly unchanged. It’s difficult to describe the overall
signature of the A4 as it can go from a bassy (and a bit bass heavy) and smooth
sound, v-shaped, neutral and even slightly bright, lean and more open sound.
