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The Stax Thread III
Apr 26, 2017 at 11:34 PM Post #11,957 of 25,487
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Apr 27, 2017 at 12:39 AM Post #11,959 of 25,487
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Well that puts it around $5500 usd from Japan import, export plus shipping and so on will be around $6000. Assuming dealer networks and regional MSRP differences, we maybe looking at $6300- $7300 in the states :D. Could it really outperform any of Kevin top tier ? We will need to wait and see

In the mean while...I am loving the grounded grid
 
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Apr 27, 2017 at 2:00 AM Post #11,960 of 25,487
Whitigir said:
Well that puts it around $5500 usd from Japan import, export plus shipping and so on will be around $6000. Assuming dealer networks and regional MSRP differences, we maybe looking at $6300- $7300 in the states :D. Could it really outperform any of Kevin top tier ? We will need to wait and see

In the mean while...I am loving the grounded grid
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Regardless of how it sounds, I REALLY like the look of your GG.
 
Apr 27, 2017 at 6:49 AM Post #11,964 of 25,487
Whitigir said:
So, I have started tubes rolling. My second set of tubes are Electro Harmonic 6CA7. It definitely has more sub-bass and dives deeper. Tubes rolling can do amazing things on GG.
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As with all good tube amps. Not that tubes are inherently better, but IMHO it's easier to make good sounding tube amps than good sounding transistor amps.
 
Apr 27, 2017 at 8:47 AM Post #11,966 of 25,487
Tubes generally have an electron-emitting cathode, a grid and an electron-collecting anode. Most often, the electron flow through a tube is controlled by wiggling the electric potential of the grid, while the cathode is kept at a constant potential. In different topologies, the electron flow through the tube is controlled by wiggling the electric potential of the cathode, while keeping the grid potential constant (often at ground potential).
 
Apr 27, 2017 at 9:56 AM Post #11,967 of 25,487
Rodeodave said:
Wth is wrong with the engineers at Stax?! Why would they use polished valve screening cans?!?! For reference see Morgan Jones, Building Valve Amplifiers, second edition, page 33.
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In the interview with engineering manager (Japanese only), he said they took measures for isolating noise/vibration through valve covers, separate tube section board, and better case foot. He also mentioned its a emitter follower topology.

Sorry for my ignorance. Does Morgan suggest against valve covers?

 
Apr 27, 2017 at 12:45 PM Post #11,968 of 25,487
I'll admit that I overreacted a bit. I just about completely lost it when I saw these awful shiny metal tube covers that you normally only see inside cheap Chinese gear.

In Morgan Jones' opinion, a shiny plain metal shielding can (without black paint inside and out) generally is an abomination that deserves to be crushed because not only does it restrict airflow, but it also reflects radiant heat back to the valve.

Not what I'd want to see inside a 6000$ amp.
 
Apr 27, 2017 at 1:20 PM Post #11,969 of 25,487
Rodeodave said:
I'll admit that I overreacted a bit. I just about completely lost it when I saw these awful shiny metal tube covers that you normally only see inside cheap Chinese gear.

In Morgan Jones' opinion, a shiny plain metal shielding can (without black paint inside and out) generally is an abomination that deserves to be crushed because not only does it restrict airflow, but it also reflects radiant heat back to the valve.

Not what I'd want to see inside a 6000$ amp.
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Are we sure on that price? Doesn't look like it fits the bill
 
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