- Oct 11, 2013
- Reaction score
- Bytown, Upper Canada
Beware of amp ratings. The old Bryston 3B may be rated at 120W but measures closer to 150W and later versions are 200+W into 8 ohms. The other thing is when the impedence load drops as it does with ESLs the receiver begins to cook and shut down (can't supply current) while the Bryston says "bring it on" and actually increases power output (300W into 4 ohms). A late model 3B is close in power output to an early model 4B, but the 4B will have a bigger power supply for current spikes.Only question left: Is the 3B going to be enough? The 3700 is rated at 105W per channel. The 3B looks like 125W. If the 3B is doing sole amplification for the MLs, is an extra 20W per channel really going to cut it?
Stefan, appreciate the reply. Hearing that the tubes are rare is one really good reason I didnt consider...
I like tubes but power tubes are completely different than the tubes in your guitar pre-amp or my phono stage. They must sit in the open and make enough heat to warm up the room. I do not use them in the summer or closed cabinet. There are also hybrid designs out there with tubes only on the input stage and transistors doing the grunt work. New tubes from China or Eastern Europe or fakes are everywhere. It's the NOS (new old stock) tubes from America and Western Europe that are so coveted and have been getting rarer by the day for the last 15 years.
I just bought a Sonic Frontiers Power 1SE which uses a similar tube complement to the Rogue. 20% of the price was for tested and matched tubes. Haven't tried it on my MLs yet but it sounded very good in the store. No problem powering Theos.