Modifying the Lowther Club HK Jazz 6L6 ($449 SET amp)

[Doglover]

I recently purchased a Jazz 6L6 direct from Lowther Club HK and have been quite impressed with this little amp especially given its modest price.
Even unmodded and with the Chinese valves it arrived with it delivers very smooth, relaxing sound especially at the low volume levels I tend to do most of my listening at.

I'm hoping to improve its sonics even further and have ordered an assortment of NOS tubes which I'm sure will do the trick, along with some Obbligato premium gold film caps to replace the 0.33uF WIMA coupling caps, because I've never been a big fan of WIMAs and find them somewhat veiled.

I've worked with valve circuits before but my knowledge of electronics is quite rudimentary so I mainly limit myself to simple mods like replacing caps/resistors etc and simple circuit changes.
Lowther Club HK were kind enough to send me a schematic of the amp and I'd love it if some of the more knowledgeable folk on the forum could take a look and gauge if there are any fairly simple changes I can make to improve things even more.

Cheers, thanks for reading guys.



Here's a photo of the amp:




The specs and further details are listed here:

Lowther Club Home


Here's the schematic:

[julcat]

any news about you mod??

[DF96]

SET usually means single-ended triode, but here it seems to mean single-ended tetrode - otherwise known as pentode mode.

If changing the coupling cap then keep the same value, to avoid LF loop stability problems.