Design Acoustics PS-10a Speakers

[TheDarkMatters]

I bought a pair of PS-10a speakers and I’m trying to figure out when they were made. The 2nd pic shows: ps10a 17445 on a sticker. They have brown cloth covers with no insignia/labels.

I have a question about this knob adjustment on the front which I cannot find on other models. What does it adjust / change?

I have a pair of KN3000A’s and now these DA ps-10A’s … what is the A for? Acoustics?

 

[Rick Sykora]

I bought a pair of PS-10a speakers and I’m trying to figure out when they were made. The 2nd pic shows: ps10a 17445 on a sticker. They have brown cloth covers with no insignia/labels.

I have a question about this knob adjustment on the front which I cannot find on other models. What does it adjust / change?

I have a pair of KN3000A’s and now these DA ps-10A’s … what is the A for? Acoustics?

The knob alters the output level of the tweeter. Best guess is the A may be for Audio Technica. Design Acoustics was acquired by AT and maybe they had some need to track new stock vs old. Owned some DA-10s in the past but not these.