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rick57 22nd May 2005 09:58 AM

The Joplin amplifier Kit
Anyone here (apart from KWV) built or heard this PP 2A3 / 45/ 300B kit from HK? Especially the 2A3 vesion


hkoetz 22nd May 2005 11:33 AM

The Joplin amplifier Kit
I built this amp kit a few years ago. Kit quality was high and easy to assemble. It sounded fine too. I have sold the amp now to free money for a new project.

rick57 23rd May 2005 11:14 AM

What were its strengths & weaknesses?

With high efficency speakers, was it ok for rock music


rick57 31st May 2005 09:50 PM

Anyone with 2A3 PP expeience they'd like to share?


jpechloe 5th June 2005 12:27 AM

Have the factory wired joplin with sovtek 2a3's for 1 year now in stock form with the feedback loop disconnected driving a 88db custom made single driver loudspeaker sytem with excellent sound quality highly recommended, also search for TORFINN in this tube forum to find out his opinion and mods he made to the amp.

Have a look at my web site:

bone43 5th June 2005 01:08 AM

good 2a3-pp

Go here, this is a good sounding amp I have built 2 of them now if you
Got the bucks use the amorphous core Lundahl output trannies itís a keeper.


rick57 5th June 2005 01:42 AM

Thanks guys - Iíll digest and consider

bone43 5th June 2005 06:50 AM

Opps forgot to mention I subbed the 6n7g for the 6a6, the 6n7 is an octal socket while the 6a6 is a 7 pin and maybe hard to find for some They are identical otherwise.

Brap 16th February 2011 02:35 PM

Joplin Amp
Yes, built this a few years ago. Great amp. Use it to drive an vintage Jensen Imperial which is a great match. Also have driven Klipsc forte's with absolutely lovely sound. Upgraded tthe caps and resistors. No HUM! enjoy this process.

porkchop61 16th February 2011 08:23 PM

Wow, a reply 6 years later! :D

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