1) More important than a speaker's sensitivity rating is its impedance & phase curves.
2) IF the speaker is an easy load - and Silverline supposedly makes speakers that are - a 9W SET could well be a very good match at 93.5 dB/W.
Let's do some quick, basic math here. 93.5 dB/W at 8 ohms gives you 93.5 dB for one watt pulled at one meter. The second speaker gives you another 3 dB. Your listening distance - say 3m - costs you about 10 dB. You're now at about 86.5 dB for one watt. However - that's anechoic. Even in a large room you're going to get *at least* 3 dB of room gain. So, you're at 90 dB now for that one watt - 90 dB is loud. How loud do you want your movies? Well, even if you want peaks of around 100 dB, which is really freaking load, this setup can probably do it.
When I had 90 dB/W Hyperion speakers, a 16W 211 SET amp was able to play them louder, with much better bass dynamics, than a 200W solid-state monoblock.
SET amps, being class A, have very robust power supplies. An amps continuous wattage rating is meaningless if the power supply can't produce the current needed. Furthermore, and this is where it does get a little weird, there is some evidence that a single-ended valve amps can swing, for brief periods, way more voltage than their power rating would imply.
So, you might want to give it a try. However, a 300B does not have the current capabilities of the transmitter triodes.
Lastly, Min's a great guy, builds great equipment at great prices, and just might love the idea of building you a pair of 211 or 845 SETs. :)
2) IF the speaker is an easy load - and Silverline supposedly makes speakers that are - a 9W SET could well be a very good match at 93.5 dB/W.
Let's do some quick, basic math here. 93.5 dB/W at 8 ohms gives you 93.5 dB for one watt pulled at one meter. The second speaker gives you another 3 dB. Your listening distance - say 3m - costs you about 10 dB. You're now at about 86.5 dB for one watt. However - that's anechoic. Even in a large room you're going to get *at least* 3 dB of room gain. So, you're at 90 dB now for that one watt - 90 dB is loud. How loud do you want your movies? Well, even if you want peaks of around 100 dB, which is really freaking load, this setup can probably do it.
When I had 90 dB/W Hyperion speakers, a 16W 211 SET amp was able to play them louder, with much better bass dynamics, than a 200W solid-state monoblock.
SET amps, being class A, have very robust power supplies. An amps continuous wattage rating is meaningless if the power supply can't produce the current needed. Furthermore, and this is where it does get a little weird, there is some evidence that a single-ended valve amps can swing, for brief periods, way more voltage than their power rating would imply.
So, you might want to give it a try. However, a 300B does not have the current capabilities of the transmitter triodes.
Lastly, Min's a great guy, builds great equipment at great prices, and just might love the idea of building you a pair of 211 or 845 SETs. :)