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GAS Thalia Preamp I & II Questions

24.144.197.25
Posted on July 6, 2016 at 10:21:58
George S. Roland
Audiophile

Posts: 1470
Location: N W Pennsylvania
Joined: March 20, 2004
 I assume the Thalia II is newer than the Thalia I. Does anyone know when the II version was made? What is the difference between the I and the II? Which is the more desirable model if there is a preference? sonic differences?

Thanks

 

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RE: GAS Thalia Preamp I & II Questions, posted on July 6, 2016 at 10:57:04
Awe-d-o-file
Dealer

Posts: 21037
Location: 50 miles west of DC
Joined: January 10, 2004
 The Thalia was their entry level pre. Next up was the Thoebe and the top line was the Thaedra. The Thaedra and Thalia had a version one and a two. You can find the owners manual w/specs and the schematic free online at Davids Audio. At this point regardless of the differences between the two versions it would be more important and yield the most improvement to replace old caps and parts like RCAs and put in an IEC so you could use a good power cord.

ET
ET

"If at first you don't succeed, keep on sucking till you do suck seed" - Curly Howard 1936

 

RE: GAS Thalia Preamp I & II Questions, posted on July 6, 2016 at 12:56:17
llwhtt
Audiophile

Posts: 192
Location: SOCAL
Joined: October 28, 2008
 Although there were some differences in the audio circuit the biggest difference is in the power supply. The "I" had an IC in the power supply regulator circuit that was prone to failure, the IC is available if you search but is expensive. The "II" had a completely discrete power supply.

An ex-GAS employee posted some of the schematics and alignment procedures on DIYAUDIO a while back.

Craig

 

Thanks much! (NT), posted on July 7, 2016 at 10:17:41
George S. Roland
Audiophile

Posts: 1470
Location: N W Pennsylvania
Joined: March 20, 2004
 nt

 

Thank you! (NT), posted on July 7, 2016 at 10:18:10
George S. Roland
Audiophile

Posts: 1470
Location: N W Pennsylvania
Joined: March 20, 2004
 nt

 

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