Trying to find specs for a 4-Way Pioneer Driver

Hey everyone!

It's my first time posting here, been reading the forum posts for a while and they're always super helpful.

I have a quick question, would any of you be able to help me find the detailed specifications of Pioneer's TS-A1684S 4-Way speaker? I've scoured the net for a while and can't seem to find anything more than the dimensions and basic info on Pioneer's website.

I'm building an enclosure for a friend of mine and don't have any testing tools during this quarantine 😛 so I can't work out the values myself that I'd need to calculate it.

Any help would be greatly appreciated! Hope you are all keeping safe.

Live4SK
 
350 Watts Max Power (50 Watts Nominal)
Carbon Graphite IMPP Cone with Interlaced aramid fiber Provides Strength and Rigidity for Full-Bodied, Rich Sound
Soft Dome Midrange with Wave Guide for Increased Sensitivity
Size: 6-1/2"
Max. Music Power (Nominal): 350 W (50 W)
Cone Material: Carbon Graphite-Aramid IMPP
Frequency Response: 33 Hz to 27 kHz
Sensitivity (1 W/1 m): 91 dB
Impedance: 4 Ω
Mounting Depth: 2-1/8"
Cut-Out Dimensions: 5"

I like the 350W rating & also like the 91dB. That's what i call silent speakers.
 
Car speakerspecs (and amps etc) are all too often overly optimistic.

350w will be one of those, and the sensitivity spec contradicts itself. If it is 91 dB sensitive (ie 2w in, dB 1m/2.83v) is not the same as 91 DB efficiency (1w/1m).

It suggest that the marketing dept came up eith the spec, niot the engineering dept. And none of those, except the cutout and depth are useful.
dave