Yes, the 6SN7 is a good tube, though in truth it’s a bit more comfortable in the role of driver tube than in being asked to perform the role of power output tube 😉 Indeed, ALO is probably unlikely to casually release the Studio-Six circuit diagrams, but I’m sure many DIY enthusiasts would...

I do understand your concerns. Please also realize however, as of June 13 of this year, the Studio-Six will have been in continuous production for 10 years. This is an unusually long production run for *any* audiophile product. It is surely worth noting: the Studio-Six is very conservatively...

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Thank you indeed, for your kind regards, and for your questions. It would be extremely unlikely that ALO could find someone who can adequately fill the place left by Jim. I suspect it would/will take at least *two* very talented and productive people, to even come close to adequately...

I just now found your posts. I am sorry to hear of your difficulties. Unfortunately, Ken of ALO is just departing for an extended vacation stay in Asia. Also: Sadly, Jim, the primary service technician at ALO, recently died unexpectedly. Since Jim’s death, there has been a big vacancy at ALO...

The inclusion of a proper, good-quality hard plastic case with latches and a carry handle would be a nice change IMO :relaxed:

You should check carefully elsewhere in your system. What you are describing is a either a product of some particular recordings and/or ancillary equipment other than the HD800S. It is also possible you had/have one of your channels phase-inverted somewhere in the chain. The HD800S is known...

I’ve owned the HD800 since 2013 and the HD800S I purchased more recently. I very much like both, and will keep both. I design tube amplifiers and associated equipment professionally, and the 800 series is my top reference headphone. I do also have various other Flagship planar headphones for...

Very nice ensemble of gear :slight_smile: The LCD-5 is a beautiful headphone.

unfortunately I am personally unfamiliar with the characteristics of modified HD800 headphones. I would say that if you have an opportunity to try a pair of HD800S with the Studio-Six before buying, that might be a prudent approach. In my experience, an area of significant note with the HD800S...

I too particularly enjoy both the original HD800 and HD800S with the Studio-Six :slight_smile: The Sennheiser HD800 and HD800S share substantially similar core attributes, but do have significant differences in presentation. I have both types, and I would not want to have to choose to keep only...

Fortunately, there are many excellent DACs to choose from these days depending upon personal preferences, of which the excellent Chord products offer much that is noteworthy in terms of build quality and performance.

IMO, the black Chord Dac/amp looks quite nice paired with the Studio-Six.

Cool gear pic --and congratulations!

Indeed! Many (most?) of these old NOS 6SN7 tubes are probably going to be around longer than most of us —particularly given the way things have generally been going in the world lately :fearful: