What is SPZ for speakers?

[unspeakable]

What is SPZ for speakers. I am seeing this term, only on alibaba.com. It usually used in the format-

Product 1
SPZ-100DB
Product 2
SPZ-90DB

 

[clarkjd]

What is SPZ for speakers. I am seeing this term, only on alibaba.com. It usually used in the format-

Product 1
SPZ-100DB
Product 2
SPZ-90DB

That appears to be a sound pressure level or how loud the speaker seems. This is usually measured with a specified amount of power input, generally 1 watt, at a specified distance from the speaker, usually 1 meter.

 

[americanaudiophile]

In this case it might just be a model number.

 

[unspeakable]

There is a different section for model number on the page. Thanks though.