I listened to some Totems last Thursday, they were quite lovely. I was surprised by how much bass the Rainmaker bookshelf speakers made. I also listened to the Arro and Forest. All very good sounding speakers. But, in regards to the Totems, they are not any more sensitive than what you currently have, most are around 87 dB, but the range is from 85-88 dB, and you are not going to get a lot of sound output with a 12 watt amp, no change from what you currently have actually. The sound characteristics may change, but the output (volume) won't.
Haven't heard the latest Snell speakers (though I loved their earlier generation speakers), but you are not going to gain any sensitivity with these either, they run 88-90 dB, again, not a significant difference.
Having the Sugdens serviced is a great idea, but I would look for a speaker that is more efficient than 87 dB, something at least 90 dB's, preferably more. This will make your setup a lot more efficient and cleaner sounding when turned up.
Haven't heard the latest Snell speakers (though I loved their earlier generation speakers), but you are not going to gain any sensitivity with these either, they run 88-90 dB, again, not a significant difference.
Having the Sugdens serviced is a great idea, but I would look for a speaker that is more efficient than 87 dB, something at least 90 dB's, preferably more. This will make your setup a lot more efficient and cleaner sounding when turned up.