3rd Power Sink amp

[Reeltarded]

Stupid name. Really cool amp. Big knob changes preamp structure from black/brown Fender to normal/TB Vox. The TB is really great.

7 12ax7.

Beautiful clean. Savage dirt. Fun knob layout. Insanely expensive.

[jbrrrrr]

But what that big knob do tho

https://3rdpower.com/products/amps/kitchen-sink/ lists it as a pan pot specifically which is interesting; with that many 12ax7s, I wonder if it's literally 2 separate gain stage configurations in the same channel that you're blending between? I'm curious to see how its actually wired, definitely not so that I can borrow the idea for my own nefarious purposes

[Reeltarded]

Black and Brown Fender, Normal and TB signal paths, I am pretty sure the input ax7 is parallel F and V split to second stages (thats 4 total triodes) a CF (6 total) a PI (8 total of 14) has reverb (10/14) and looks like a switchable stage or pair (12/14) to get Marshall 800 cascade leaving 2 stages that are the magical thing, possibly one triode is at the input mixer and who knows.

The switches at the big knob select Bl/Br on left and N/TB on right. Big knob is a blender.

The amp is throaty enough to have a lot of split signal and use more stages. Big shoulders but not unbalanced blobby nonsense. I think it is one of the more interesting ideas that actually does something different and useful. The big knob sounds good everywhere and the 800 lead bit stands up just as well.

[dcribbs1412]

Very interesting amp
https://www.youtube.com/watch?v=PFNJtamlNTA

[Reeltarded]

The Dragon amp is literally control names away from being my Enola amplifier. The only thing I don't use is a power scaling scheme, a selectable presence cap selector, or calling a mixer pair of resistors a "module".

I add fully variable slope and some switching to carve the cascaded stages individually, have the same 400Hz boost, the individual cascade gains, and my presence controls either act as JMP or fixed like an Ultraphonix Bandmaster.

[dcribbs1412]

The Dragon amp is literally control names away from being my Enola amplifier. The only thing I don't use is a power scaling scheme, a selectable presence cap selector, or calling a mixer pair of resistors a "module".

I add fully variable slope and some switching to carve the cascaded stages individually, have the same 400Hz boost, the individual cascade gains, and my presence controls either act as JMP or fixed like an Ultraphonix Bandmaster.

Dragon amp is pretty smokin too
400Hz boost is cool.
Any more info on your Enola circuit
Pic of Kitchen Sink

[Reeltarded]

It's generally an 800 with four ax7s. The first two stages have gain controls, the first stage is small .0022 coupler, 5 position brite+ bypass. Switch at splitter before 3rd stage for the added stages. Mostly 2k7/.68 stages. The 400Hz boost is a cap over that 470k splitter on a switch with a tiny cap to ground. I think that is .0033 or .0047 and 50p/variableR to bleed extreme highs. I targeted 8kHz and listened to direct signal until it sounded close, then measured slight tweaks with analysis plugin because there is a reason to choose 8kHz.

All 1M pots with different values of resistors at the input corner to make the amp rage all hell with gains straight up. Only stage two is full signal to keep that Marshall soul as a basis. The added two stages later and it sounds like that amp but slightly more growly and maybe a little more air, but not ever zingy.

I would draw it but if I open it up I'll start soldering. hahaha

[Reeltarded]

The description of the Dragon input stages. I need to emphasize how important it is to be able to moderate either.

IT IS VERY IMPORTANT

The first stage sets the stage for how the tone and temperament and attitude. The second decides how much hate hits the PI. You can run stage 1 just at 7 to stay at the edge of your bright selection and moderate gain 2 into an underdrive around 4. The amp will be snotty but incredible well behaved with master at 10, or you can pick a smaller gain 1 bypass, set gain 1 well under bypass on the bright (3-4) and get gain two up around 7 for a similar output with a brighter face, or dime gain 2 and moderate the master, using gain 1 just as any 800 style amp.

With a fully variable slope, this 3 pre tube setup can sound like almost anything with a lot of other sounds nothing else can ever do.

Add stages 3-4 (think ODS but really just a series second Marshall cascade with gain controls) and if you think that is insane you should hear what Hermansson does to a Boogie. It's insane.

Gawk. And this is mild.



Shake the quake!

[erwin_ve]

I looked up their patent on the "powerscaling".
Dual pot: one for regular master volume and 1 for changing the PI cathode resistor .
https://patents.google.com/patent/US20130028447A1/en

[mensur87]

The big knobs of 3rd Power Sink amp is quite a unique sight as they will mix you through different classic amp models. It's fun how you can go from Fender to Vox amp and almost into the territory of Marshall. I think the concept of having variable gain stages to dial from clean up to death distortion is pretty neat. And the power scaling they committed seems intriguing, too… notably with that dual pot for master and PI cathode. That definitely is a cool hack for working out tones!

[Reeltarded]

Gain control per stage is ABIGFNDEAL.

At medium gain levels almost everything turns into something Marshall though.

[FUCHSAUDIO]

I looked up their patent on the "powerscaling".
Dual pot: one for regular master volume and 1 for changing the PI cathode resistor .
https://patents.google.com/patent/US20130028447A1/en

I gotta laugh at this. It's kinda like a lame excuse to get a patent on nothing special I guess.

[Reeltarded]

I looked up their patent on the "powerscaling".
Dual pot: one for regular master volume and 1 for changing the PI cathode resistor .
https://patents.google.com/patent/US20130028447A1/en

I gotta laugh at this. It's kinda like a lame excuse to get a patent on nothing special I guess.

It serves the narrative though.. come on, it's 2025. Everything is premium.

[El Rey]

I looked up their patent on the "powerscaling".
Dual pot: one for regular master volume and 1 for changing the PI cathode resistor .
https://patents.google.com/patent/US20130028447A1/en

I gotta laugh at this. It's kinda like a lame excuse to get a patent on nothing special I guess.

It serves the narrative though.. come on, it's 2025. Everything is premium.

Wonder how many medical procedures patented.....like the laser ablation on prostrate cancer RS just had.

Now there's a guy that likes to patent !@#$!! shit!

God speed in retirement Randall. Yeah, thery're always talking shit about ya, you're good with me.

https://www.youtube.com/watch?v=p9GiZOjqjhE