The Stax Thread III
May 9, 2017 at 5:04 PM Post #12,076 of 25,550
May 10, 2017 at 1:49 PM Post #12,080 of 25,550
Yea, I asked him if the floodgates had opened. He's looking forward to more.
 
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May 10, 2017 at 2:02 PM Post #12,081 of 25,550
Yea, I asked him if the floodgates had opened. He's looking forward to more.

Sweet, glad he's willing to make more.

As long as the amp can be built in time for whatever new flagship STAX has in store for us next year for their 80th anniversary I'll be ecstatic.

I look forward to your impressions of how the DIY T2 pairs with the yggy as I'm thinking that's the DAC I'll settle with.
 
May 14, 2017 at 8:24 AM Post #12,082 of 25,550
Yea, I asked him if the floodgates had opened. He's looking forward to more.

How's the amp sound? It will need burning in I imagine. Any feedback on how it compares with other amps you have had and also heard especially with the 009s would be very interesting.

I wonder of this amp is the pinnacle of KGs circuits to date. I am thinking it might be, but only guessing as not heard a DIY T2 or a Megatron, or the GG either, only a KGGSShv and Carbon and of course Justin's BHSE. But the mystique of the T2 is there and enduring.
 
May 15, 2017 at 3:35 AM Post #12,083 of 25,550
How's the amp sound? It will need burning in I imagine. Any feedback on how it compares with other amps you have had and also heard especially with the 009s would be very interesting.

I wonder of this amp is the pinnacle of KGs circuits to date. I am thinking it might be, but only guessing as not heard a DIY T2 or a Megatron, or the GG either, only a KGGSShv and Carbon and of course Justin's BHSE. But the mystique of the T2 is there and enduring.
It digs deep. I'm losing sleep.
 
May 15, 2017 at 6:26 AM Post #12,084 of 25,550
May 15, 2017 at 4:02 PM Post #12,085 of 25,550
As long as that shoebox is polished and anodized. :upside_down:
First you must glue box with alu foil. Remember - no wrinkles, you gonna ruin it badly that way !!!!
lol
Damn, and don´t forget proper grounding....!
 
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May 16, 2017 at 9:13 AM Post #12,086 of 25,550
I own the KGSSHV but keep tossing about a tube amplifier that could get the most out of my 009 as well as dynamic headphones like the Utopia and other electrostatic headphones with different bias voltages. And after months of prototyping... here we have reached the final version, called DT-HWT.

It features a dynamic bias voltage power supply unit which allows you to set different bias voltages for electrostatic ear speakers from 100-volt bias up to 620-volt bias.

  • Tube complement for the amp unit is: two EF86/E80F/6D8 & two 12AU7/5814A/E80CC/E82CC & four EL95/6AQ5
  • Tube complement for the power supply unit is: two KT66/KT77/KT88/6550/6L6/EL34/350B/350A & one 6080/5998/6AS7/6H13C/2399


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This baby is neutral and unstressed for long listening sessions and linear and damn quiet, it has a very wide bandwidth/soundstage, high resolution and very high definition in spades. Happy tubes rolling... :)
 
May 16, 2017 at 10:24 AM Post #12,088 of 25,550
I own the KGSSHV but keep tossing about a tube amplifier that could get the most out of my 009 as well as dynamic headphones like the Utopia and other electrostatic headphones with different bias voltages. And after months of prototyping... here we have reached the final version, called DT-HWT.

It features a dynamic bias voltage power supply unit which allows you to set different bias voltages for electrostatic ear speakers from 100-volt bias up to 620-volt bias.

  • Tube complement for the amp unit is: two EF86/E80F/6D8 & two 12AU7/5814A/E80CC/E82CC & four EL95/6AQ5
  • Tube complement for the power supply unit is: two KT66/KT77/KT88/6550/6L6/EL34/350B/350A & one 6080/5998/6AS7/6H13C/2399


medium_WP_20170413_13_05_32_Pro.jpg
medium_WP_20170413_13_05_49_Pro.jpg

medium_WP_20170419_16_08_10_Pro.jpg

medium_WP_20170420_14_59_11_Pro.jpg

medium_WP_20170420_19_40_35_Pro.jpg

medium_WP_20170420_19_40_18_Pro.jpg

medium_WP_20170425_12_38_07_Pro.jpg

medium_IMG_0626.JPG

medium_WP_20170412_13_48_48_Pro.jpg

medium_WP_20170412_13_49_10_Pro.jpg

medium_WP_20170412_16_19_05_Pro.jpg

medium_WP_20170413_13_05_38_Pro.jpg

medium_IMG_0646.JPG

medium_IMG_0656.JPG

medium_IMG_0940.JPG


This baby is neutral and unstressed for long listening sessions and linear and damn quiet, it has a very wide bandwidth/soundstage, high resolution and very high definition in spades. Happy tubes rolling... :)

Interesting. Transformer output for dynamic phones? Could you post a schematic?
 
May 16, 2017 at 11:04 AM Post #12,089 of 25,550
It features a dynamic bias voltage power supply unit which allows you to set different bias voltages for electrostatic ear speakers from 100-volt bias up to 620-volt bias.
Good thing to have, i found that 400v bias makes phones less sharp, but lowers sensitivity also. Ok for lambdas
For 007 it had negative effect, sound was not ok. I´d like to see schemas, +1.
 
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