found this on kickstarter

[merlin2069er]

TUBECORE DUO by TubeCore Audio — Kickstarter

pretty neat.

 

[TheGimp]

Quite interesting.

 

[funk1980]

A raspberry PI slapped together with a tube amp in a pretty box. Shouldn't be to hard to build one for yourself.

 

[vinylkid58]

That is pretty neat.

jeff

 

[TheGimp]

I don't see that the tubes will do much, unless intentionally miss-biased.

It would be neater if it were SE EL84s for the mid and upper frequencies and SS for the bass.

 

[vinylkid58]

Those drivers are probably pretty low efficiency, so are going to need a lot more power that SE EL84 can provide in that configuration.

jeff

 

[merlin2069er]

Yeah, I'd skip the tubes, and add a few additional input sources, and a stepped attenuator. Then control the volume and sources with my bluetooth app.

 

[whitelabrat]

From the photos it looks like one of the Sure Electronics class-D amps with some Tang Band like drivers. I'd be surprised if the tubes did anything. :\

 

[wehaveyourpants]

Just reading through the comments it looks like that pic was of the box prototype when they were testing the drivers in the enclosures.

Maybe they should post some test data from the speakers or maybe the schematics for the amp/preamp... They say it's open source.

 

[Palustris]

"3" Composite 30w Long-Throw Subwoofer"

With a 3" subwoofer you will set off car alarms all up and down the street!

 

[kevinkr]

Quite a bit of hyperbole about the sound quality which given the 3" drivers used is probably not going to be stellar. Seems like this or a similar niche is already occupied by every major market player. Good luck to them.

 

[picowallspeaker]

The hyperbole is the one that makes seem the production of the sound similar to the reproduction, which is a whole different matter.
I'm talking about the period in which says ' tube drive + SS power+ good drivers= all musicians love it'
Talking about a singular element ( such as...speakers) doesn't lead to anywhere=nowhere

 

[Regenpak]

Couldn't find the tube type but looks like ECC82/3. Still, this whole exercise seems a bit silly even though the box looks nice.

 

[TheGimp]

Those drivers are probably pretty low efficiency, so are going to need a lot more power that SE EL84 can provide in that configuration.

jeff

He is using 4" drivers for the main speakers. There are plenty that can be driven to reasonable volume with a 3W tube amp using cavities the size shown. For instance the Tang Band W4-1320SJ at 89dB/W-M.

I'm not talking concert level here. Just a nice system for background music while reading, cooking, etc.

It looks like the cavity is not partitioned, which it should be if it is stereo. There is too much cross coupling between the channels.

Fitting a full tube amp would be an issue.

 

[Magz]

Some serious tats on that chick.

 

[wehaveyourpants]

All jokes aside, I have that little sub and it puts out the bass. Plus I have meet people on here that say they have produced bass down to 30 hz with that sub.

It's got dual santoprene surrounds and a floating coil.

It may be tang band and you may think it is expensive at almost 40 but it is definitely a "Fun" sized sub