All Our 1723 Speakers Are Certified
All our 1723 speakers are Certified by the very strict testing protocols of THX Ultra
where each speaker must pass a set of 400 measurements. The THX Certification
does not mean it is a dedicated home speaker, but rather a guarantee of tight
consistency within well-established acoustic parameters. THX Certification is as
much about music, as for movies.
The engineers at THX Labs utilize a proprietary scientific testing methodology to
ensure the highest audio fidelity possible.
All 1723 speakers passed the THX Ultra Certification without any change to the
products, meaning our standards already exceed THX Ultra level out of the box!
Key tests in this program are as follows:
Axial frequency response
This describes a loudspeaker’s ability to reproduce
audio accurately. The test confirms if the axial
frequency response is balanced and flat within
tight tolerances.
Vertical and horizontal dispersion
Not everyone gets the middle seat when watching
a movie. THX measures the off-axis response to
confirm if it is smooth with no audible comb
filtering. A pass at THX Ultra ensures every seat
in the room is served just like the sweet spot.
Output versus distortion
This tests the speaker’s ability to reach the
SPLs necessary to achieve THX Reference.
Level within certified limits of distortion at the
listening distances required by THX Ultra
