I wanted to build a tube system around the highly sensitive Focus HD's, which present a very stable 4 ohm load. With the NEO250's optimized for a 5 ohm load, I thought it would be a good match. The HD's havent hit the 300 hour mark yet, so the transformation hasnt started yet. The amps currently have less than 50 hours on them as well. However they are starting to mesh well. Thinking about upgrading into the new Fosgate Signature tube phono stage, which is dual mono. Some tweeks here and there left, such as room treatments, that should keep me busy for awhile.Oh, and chasing those ground loops...
Each powered by dedicated PS Audio Premier.These sound better everyday
PS Audio Power Plant Premier
powers NEO250's, one each channel
PS Audio P-500
powers all sources
Signal Cable Silver Resolution
good budget cables
Legacy Audio Focus HD
Focus HD's. The long road to break in.
Signal Cable Ultra
biwired
PS Audio Soloist
Wall outlets
PS Audio Juice Bars
Model 1 & 2
May-Tec Aluminum
Custom fabrication, Formica wrapped MDF shelves, Timbernation Maple TT platform
Ground Zero Star Grounding System
Helped somewhat, I think, however could never get rid of the ground loop hum between the NEO's and the Premiers, had to lift grounding plugs on PS audio AC cords.
Walker Audio Precision Motor Controller
Decided on this over the VPI SDS-never looked back.
Richard Gray 600S
Parallel inductors, paralleled with each wall outlet duplex on each channel. Next step RGPC 4000W Substation Pro.
Jay, I love the look of that room. The Neos add a sort of retro look to it. Fantastic. Have you tried room room treatments? With that hard floor and mixed bag of wood and what looks like plaster board or dry wall, you might have some serious resonance issues. Try anything that you could recommend to those of us with similar room issues?
Thanks. I guess it's more of an issue with SET amps than tubes of the tetrode or pentode variety, as well as being a stable 4 ohm load. Some of the bigger floorstanders can have variable impedence, and it seems to make some tube amps really lose it.
By the way- how does a non-triode tube run in "triode" mode? The EL34 in the Neo is a pentode. I see this in a number of amps. How does it work?
