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Sonic Electronix

Used SA-V ??? Need Thiele Small parameters


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Greeting, I am a new member who's recently discovered Sundown Audio. I just bought a used Sundown 8" an eBay. The seller didn't have the original box, so I am a bit unsure just which model I have. Moreover, I plan to use it in a Tapped Horn build. TH's are tricky things, and if you don't have pretty exact spec's they can be a disaster.

I'm getting set up to measure TS spec's on my own (can't find anyone around here that does that, so I might as well ... I love DIY), but in the meantime I want to narrow down my design simulations a bit with the manufacturer's spec's. This is a STRONG motor for its SD! So it's pretty finicky with what design it will work for (just judging by experimenting with the spec's of an SA-8v.2) ... designs for other 8's were all over the graph.

I think I have either the v1.5 r the V1.75, judging by the basket (4-spoke/8-leg), and the DC resistance as measured by a cheapo tester bounces between 2.3 and 2.4 per voicecoil.

Can anyone identify it, and

WHAT ARE THE TS PARAMETERS?

Thanks ahead, and glad to be joining you folks.

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