Mini Karlsonator (0.53X) with Dual TC9FDs

[Skylar88]

Hi X, I think you once calculated, or guestimated, 94dB or was it 96dB? for parallel 16Ohm 3FE25's.
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[Grarea]

Thanks for posting those.
They look wonderful.

Inspiring.

I just received my delivery of foam board for my first crack in a couple of weeks time.

[xrk971]

I calculated 96dB based on 90dB at 2.83v. But it seems the spec I used was misquoted by Parts Express. Sorry about that, I should have been more careful and looked at the factory data sheet.

1W into 16ohms requires 4v as power is V^2/R. So the spec is 90dB at 4V and 1m.

Two in parallel is +6dB and 2.83v is -3dB from 4v. So net gain is 3dB for dual 3FE25-16 in parallel.

Or 93dB at 2.83v and 1m and 8ohms.

[Skylar88]

Thanks for correcting the calculation. .
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