Knowles T303, T404, T408 Sheets

Passives Audio Products
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1

Are there sheets with physical measurements and sensitivity/frequency response curves for Knowles’ new multi-way drivers (T303, T404, and T408)?

The data sheet on the listing is more of a promotional pamphlet.

These are the part numbers:
423-PA-35273-T303-ND
423-PA-35284-T404-ND
423-PA-35867-T408-ND
Thank you!

2

Hello,

Welcome to the TechForum!

Here are the manufacturer’s links to these parts and their documents available.

T303
Knowles PA-35273-T303 | | Knowles Electronics

T404
Knowles PA-35284-T404 | | Knowles Electronics

No T408 options

Thank you
Ryan

3

Hello!

Unfortunately, there is no information on any of the pages you linked!

I’m also not sure why you excluded T408 in your response, since there is a similar page for that model:

https://product.knowles.com/products/pa-35867-t408

But of course, it’s the same problem. All three of these are just blank product pages with no specs.

4

Being relatively new on the market and the sort of thing that has a degree of novelty to it, my guess is that the lack of useful information is deliberate on the manufacturer’s part.

In such a case using the Request More Information link(s) on the respective product pages is probably your best bet for obtaining the information you seek.

6

I figured that would be the case, but I had to try!

Thank you both so much for the help and wish me luck :-­)