Golden Tube Audio SE-40
blairfrischx
Posts: 259
Some of you may know the Golden Tube Audio saga - products that sounded great but that had a bad habit of succumbing to parts run above their specs.
Sometime around when GTA went under, Sonic Craft stepped in to provide upgrades and related services to the GTA products. The Sonic Craft modded GTA products have a wonderful reputation for sounding great at a very good price point. A large community also sprouted (and still exists) on Yahoo! groups concerning fixes and mods for the now late GTA's products.
This brings us to the SE-40. It's a Class-A biased 40Wx2 amplifier using two (2) 6SN7 drivers (swappable to 6SL7 through internal jumpers) and six (6) 5881/6L6GC* power tubes. And it's a pretty sleek-looking one at that.
Find an album of pictures here
Board is a later production run (v3). Internals have been replaced with the "reliability upgrade" package from Sonic Craft. From what I can tell, this includes the following (not an all-inclusive list):
Included in sale will be the two (2) Phillips 6SN7WGTA tubes shown in the pictures, a total of eight (8) Sovtek NOS 5881 tubes, original manual, and the bias harness. Amp was rebiased within the past few weeks, and tubes will be removed and labelled before shipping. It should be ready to be a good amp for many years to come.
I would like to get $600 + real shipping costs. Local deals would get priority, since it weighs about 50 pounds and would be a pain to ship. Payment by Paypal would be preferred.
References:
Sonic Craft upgrade page
Yahoo! Golden Tube group
General circuit schematic (some values incorrect for v3 board)
*NOTE: Some 6L6 models will not bias correctly. It's best to reference the Yahoo! group, since they're the experts.
Sometime around when GTA went under, Sonic Craft stepped in to provide upgrades and related services to the GTA products. The Sonic Craft modded GTA products have a wonderful reputation for sounding great at a very good price point. A large community also sprouted (and still exists) on Yahoo! groups concerning fixes and mods for the now late GTA's products.
This brings us to the SE-40. It's a Class-A biased 40Wx2 amplifier using two (2) 6SN7 drivers (swappable to 6SL7 through internal jumpers) and six (6) 5881/6L6GC* power tubes. And it's a pretty sleek-looking one at that.
Find an album of pictures here
Board is a later production run (v3). Internals have been replaced with the "reliability upgrade" package from Sonic Craft. From what I can tell, this includes the following (not an all-inclusive list):
- Sonicap coupling capacitors
- Upgraded resistors
- Nichicon PSU filter caps
- New bridge rectifier
Included in sale will be the two (2) Phillips 6SN7WGTA tubes shown in the pictures, a total of eight (8) Sovtek NOS 5881 tubes, original manual, and the bias harness. Amp was rebiased within the past few weeks, and tubes will be removed and labelled before shipping. It should be ready to be a good amp for many years to come.
I would like to get $600 + real shipping costs. Local deals would get priority, since it weighs about 50 pounds and would be a pain to ship. Payment by Paypal would be preferred.
References:
Sonic Craft upgrade page
Yahoo! Golden Tube group
General circuit schematic (some values incorrect for v3 board)
*NOTE: Some 6L6 models will not bias correctly. It's best to reference the Yahoo! group, since they're the experts.
Post edited by blairfrischx on
Comments
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Very Nice ! This wont last long. GLWS!Speakers: SDA-1C (most all the goodies)
Preamp: Joule Electra LA-150 MKII SE
Amp: Wright WPA 50-50 EAT KT88s
Analog: Marantz TT-15S1 MBS Glider SL| Wright WPP100C Amperex BB 6er5 and 7316 & WPM-100 SUT
Digital: Mac mini 2.3GHz dual-core i5 8g RAM 1.5 TB HDD Music Server Amarra (memory play) - USB - W4S DAC 2
Cables: Mits S3 IC and Spk cables| PS Audio PCs -
Sale is pending on this.
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Mods, please mark as sold!
