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PostPosted: 30 Sep 2014, 01:59 
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Joined: 06 Jun 2008, 18:23
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Location: Australia
I have a new and very exciting headphone (HP) amp from Oatley the K311B. But it hates my blues tooth connection. So I had to go back to old faithful my preamp\HP driver. It is based on s single 2N3055 in emitter follower config. The PS is extreme and dead quiet. BUT it does not drive my Beyerdynamic DT 700 Pros to full volume. To lift the output from the Belkin Blue Tooth receiver I inserted my tube and chip preamp. This has a single stage tube preamp and a Pass B1 buffer\driver (back-end) output section. An SNA member now has one and has reported favorably on it. From the blue tooth connection to the preamp and then the HP driver. Now that works extremely well! Plenty of volume and lots of drive. And most of all; dead, dead quiet. Love it. But it does appear to be a lot of gear for such a simple result.

pictured here with AT 700 Airs.
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HPSetUp.jpg
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HPSetUp_II.jpg


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Projects: "Sanctum" - 12AU7 and 6AS7 direct coupled headphone amp | "retro-Oatley 6J6" - 6J6 push-pull headphone amp with OPTs | "retro-Hiraga" - Jean Hiraga Le Monster
Website: retro-thermionic


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PostPosted: 07 Jan 2015, 01:05 
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Location: Australia
Here is the Class D and my take on a capless BoZ SE as preamp. I am using ghe diirect connection to the Sure module with no attenuator in cct. The two are on the small metal table in front of the other gear. Just had a long listen to violins and Oboes in a couple of complete classical recordings. Not disappointed at all with the Class D - Mirage.
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Class D.jpg


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Projects: "Sanctum" - 12AU7 and 6AS7 direct coupled headphone amp | "retro-Oatley 6J6" - 6J6 push-pull headphone amp with OPTs | "retro-Hiraga" - Jean Hiraga Le Monster
Website: retro-thermionic


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PostPosted: 07 Jan 2015, 01:21 
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Location: Australia
The TV end has been a little unchanged for a while. Beyma 12" full range (2" concentric titanium tweeter) 98 db efficient and 80W Tube and chip amp; VoXConcentriC and Number 9. To fill in the bass a 125W Class AB SS amp and 12" woofer in a 60 ltr box sits at the back. From 200hz and down the bass is supported and extended.
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P1073178.JPG
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_________________
Projects: "Sanctum" - 12AU7 and 6AS7 direct coupled headphone amp | "retro-Oatley 6J6" - 6J6 push-pull headphone amp with OPTs | "retro-Hiraga" - Jean Hiraga Le Monster
Website: retro-thermionic


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PostPosted: 09 Dec 2015, 18:39 
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Joined: 06 Jun 2008, 18:23
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Location: Australia
I currently have five DIY amps I can roll; 6V6 SE UL, EL84 SE UL, 300B SE Triode, EAT 180W T4 Tripath and IRS2092 250W Class D.

I'm rolling between the T4, the IRS and the EL84 at the moment. Thanks to bananas on the speaker leads and nicely fitting RCAs I can roll one in and one out in minutes. Also I can leave them all on so its more of a hot swap. No warm-up time.

Speakers are my 12" high efficiency concentric Beymas, on 12" stereo sub-woofers, tube preamp and Oppo 95 Audiophile. So far the T4 appears to work the best with rest of the gear. But more listening to do.
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PC103405 (800x600).jpg
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PC103406 (800x600).jpg
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PC103407 (800x600).jpg


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_________________
Projects: "Sanctum" - 12AU7 and 6AS7 direct coupled headphone amp | "retro-Oatley 6J6" - 6J6 push-pull headphone amp with OPTs | "retro-Hiraga" - Jean Hiraga Le Monster
Website: retro-thermionic


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PostPosted: 23 Jan 2016, 18:09 
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I'm back with another Tripath T4. You can see two dark coloured amps with gold knobs on a small table between speaker and equipment rack. Well the new T4 is the dark one on top.

More than that a good photo of my main system screen and all.
Attachment:
image.jpeg


Yes they are my toes. Not meant to be there.


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_________________
Projects: "Sanctum" - 12AU7 and 6AS7 direct coupled headphone amp | "retro-Oatley 6J6" - 6J6 push-pull headphone amp with OPTs | "retro-Hiraga" - Jean Hiraga Le Monster
Website: retro-thermionic


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