In all probabilty, if the amplifer worked before you 'modded' it and now it does not work, then you did something wrong.I would suggest that you go back and check your work.

Well it could be anything in the circuit.  The 10 year old thread is about an MA104, and you have a MA007.  Are they the same inside?  I don't know.  Can you post a schematic?

Nothing??? 😕🤔

Sorry to bring this back from the dead...but I did some of these mods to my MA007...and now, I'm only getting a constant popping sound out of it.  Does anyone have an idea what could be causing it?
Thanks in advance.

Maybe its got an ARTEC QDD in it? https://www.amazon.com/QDD2-Quadra-Distortion-Driver-Effects/dp/B007XIW07S

Cheap POS.... ya... maybe...BUT

In this age of "Digital Everything"
I find it somewhat refreshing to see a new all analog SS amp.

I'd also like to see a schematic. Curiosity ya know?

Yes, it's a cheap POS. Yes, their copy is full of hackneyed BS.

I'm just interested in seeing what they are using for their non-linear stuff, mainly in the distortion channels, to see if they are offering something interesting, even if it subtle (the Quilter's bias shifting circuit would be a good example), or to see if they are just re-hashing the same tube-screamer-style crap.

Right now, the Katana-style "5 or 6 basic digital models, simple interface" and "digital models on your iphone" amps are dominating the SS guitar amp market. I think that this amp is a risky proposition, if they are just throwing yet another amplified distortion box at the marketplace, even if the price point is low. But, if they've got something unique to offer, then I'm curious to see what they've got going on.

Thanks,

WP

I'm using the same speaker and speaker cable that I use with my Kustom amp so I know it's good. I've got some good pictures will try to figure out how to post them you'll see this amp is very clean inside.

Yes could be the socket but more likely the plug is faulty.
If the speaker cable has a metal shroud then unscrew it and check the connections.
If you have another cable around try that.
Phil.

Quote from: g1 on May 22, 2022, 01:28:37 PM

Quote from: A7 on May 21, 2022, 07:16:41 PMI'm sorry when I said line out, I meant the line to the speaker.

So what did you mean by 'moved' in the first post?  If you mean just wiggling the wire going to the speaker makes a buzz come and go, then that sounds like a bad connection.

Yes no sound, but if you move the cable you hear the buzz and then nothing. Is it possible the amp output jack is bad or just oxidized?