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JOYO BaDass Bantamp Tube Amp

#23
Analogeezer said:
I tried editing my post but the edit did not take.

These things use an external PSU, not sure if it's a "lump in the middle" (likely) or wall wart but it's 24 volts/3 amps.

If you lose the original PSU or it goes bad good luck replacing it. That's a LOT of power for an external PSU.

Sure it's got a "toob" but not sure how this is incorporated into the design, it might just be in there to heat the insides up.

I know lots of cheap outboard gear (mic pres, channel strips and such) use a toob but they are usually starved plate designs where the toob doesn't really impart any "toobiness" to the tone.

Analogeezer
Click to expand...

Yeah, it's possibly a starved plate arrangement. While I personally *love* what they can do, this isn't going to "toob" if you've ever done REAL toob.
 
#28
I love JOYO stuff. I own a lot of their pedals because they're fun, and cheap ! I think their little guitar tube amps are killer. I've never tried the bass amp and I'm not a Class D power section fan at all, so I don't see ever owning one, but I'd be happy to use it at rehearsal or something.

They are a totally established company. Nothing sketchy at all about them.
 
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#29
smtp4me said:
Thanks. I thought of that, and I have a Tech 21 GED-2112 rack mount. In this case I wanted something with a real tube(s) and something that can be used with a cabinet at some point, if I need/want it to.
Click to expand...
real tubes are overrated... there are tons of fantastic sounding preamps that do and do not have tubes, and tubes are no guarantee that it sounds gritty or even sounds good overdriven.... and there are solid state devices that clip similarly to a tube... and there are little modeling pedals that do it all perfectly for recording.

that little joyo is an amp, for a cab, first and foremost.

Class D power amp sections are used in a lot of high end production live sound equipment now, bass amps and PA, because they run very cool, are very reliable, are very light (a nice side effect), and can have ridiculously high output power without a lot of the same challenges that work against other class amplifier designs.

I'm a huge fan of class D power amps, since I use my amp to amplify, and my preamp and cabinet to get tone, the power amp just needs to be super clean and powerful - something that every class D amp I've used has proven to be great at.

I bet that joyo is amazing, honestly, based on how well they did with their guitar amp heads of the same type.
 
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#37
smtp4me said:
Has anyone heard of, or better yet, has anyone played one of these?

JOYO BaDass Bantamp
BADASS_JOYO


It was featured in a Bass Magazine article back in August. I reached out to the company to find out if it will work in my home studio. I do not own a cabinet, and would rather not get one right now. My most common use case would be to run from the amp into the 1/4 input on my audio interface (Apogee Element). But... the amp does not have a DI.

I asked the company's tech support if/how it would work direct into the audio interface and without a cabinet. Their response was to try the effects output jack.

I understand the best source of information is the manufacturer, but I thought I would try TB as well, since there are more than a few experts (including those who work for amp companies).

Any ideas? I figured the standard speaker output might not be good - maybe the headphone output, or the effects output mentioned??
Click to expand...

Run out the effect send. It's essentially a pre amp out jack. Run that into your interface.

It's not a tube amp though. If that were the case, not returning the signal back into the amp, then out into a speaker, would blow your transformer. Amp gone. Done. Quick too. But, since it's just a run of the mill little class D amplifier, you are good to go either out the fx loop, or the headphone jack.
 
#38
There is a minimum of quality that has to go into anything tube driven to make it superior to solid state stuff of the same tier.
I like to be surprised, but a 50W amp with a tube preamp that sells for less than a cheap tube preamp alone costs feels strongly like 'you get what you pay for'.
I'd recommend a tube driven preamp for the specified application.

Others that work for you would be:
H&K Bass Master (5w tube amp that can send a line signal from the output transformer and runs without cab)
SWR Interstellar Overdrive (same)
Ampeg PF-20T / PF-50T (for studio work check for the humbuster mod)
Lots and lots of tube driven Pedal preamps.
 
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#39
As you don't seem to have any intention of playing this thing live and just using it for recording I would recommend you buy a nice used tube pre-amp. If you can find one the SWR Interstellar Overdrive is amazing but almost any Ampeg pre will kick booty too.
 
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