Full range driver, recommendation..

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Folsom

Re: Full range driver, recommendation..
« Reply #20 on: 15 May 2019, 04:21 pm »
I would only BSC 3db, not 4-6db. That'll leave you with almost 93db sensitivity. And since the filter is parallel and has a resistive element in it, you're not really degrading the efficiency of the driver. (efficiency and sensitivity are different)

There is a good chance 8 watt could still get you to 100db, and 20w would get you to 103db. So unless you're entertaining a party, I don't foresee serious problems.

Usually more power is good, but for SET I don't necessarily think that, I think whatever SET sound best is best, as long as it isn't a total flop in power on the wrong speakers. Tubes sound louder, too. They clip very nicely, so 8w often is a bit more.

FullRangeMan

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Re: Full range driver, recommendation..
« Reply #21 on: 15 May 2019, 04:25 pm »
Thanks for the Davis link, this 8'' may be a good sound driver but 1100 euros per driver put CommonSense Alnico drivers on the bargain side.

FullRangeMan

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Re: Full range driver, recommendation..
« Reply #22 on: 15 May 2019, 04:48 pm »
Going higher power in SET is much more expensive. And IMO using small drivers is a recipe for harsher sound without going multi-driver (horns?).
There is some hi power SET made in USA, the higher price is due the big transformers they use, however in China there is plenty of big SET amps with a lower price, this Bravo sport even point to point wiring and DHT tubed AC rectification, however the output power is in excess of 18W, over the limit for the 6C33, one should send this amp for a local tech to reduce the Bias to 12W for longer tube life.
https://www.amazon.com/Jas-Audio-Bravo-2-3-6C33-Integrated/dp/B008K46K98