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ART MP Preamp Tube Swap

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Chris C
Jan 01, 2010 11:11 AM GMT

I recently purchased an ART MP Tube Preamp and I am getting some good results straight off with it. However I would like to try some other Tubes in it. I certainly have much more gain than I really need so there is room to move (invoking John Mayal here).I would love some suggestion for low cost lower gain tubes to try. Thanks and Happy 2010 to you all.

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Comments (8)

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Jan 01, 2010 9:10 PM GMT
John P Replied:

There's no reason to swap tubes on the ART MP because you can adjust the input and output gain with the control knobs. No need to make things more complicated than they need to be.

Jan 01, 2010 10:16 PM GMT
Chris C Replied:

OK good call. I mean I am getting a really good tone using the input and output gains. I justread somware that people do swap out the original (chinese?) tubes. I have a gig tommorrow so I'll give it a goor run before I do anything rash. Thanks for the advice.

Jan 02, 2010 3:48 AM GMT
John P Replied:

If it ain't broke, don't fix it. This is especially sound philosophy if you're are using the ART MP for live gigs. Don't mess with a good thing.

i've got one. Very nice piece of gear. i don't use it for gigging w/ my current live rig. But i certainly do not perceive any need to modify it if i was going to use it for performance.. And, btw, i've changed tubes on every tube amp i own, so it's not like i'm shy about doing stuff like that when it needs to be done. Personally, i see no reason to change anything on the ART MP. It's a very nice little tube pre and extremely harp friendly as is.

Jan 02, 2010 7:28 AM GMT
Boris Plotnikov Replied:

ART tube is not clearly a tube pre. It has tube only for tone colouring. It doesn't made to be overdriven itself, it's better to put input gain to the level where it's not clipping (no red light) and output as much as necessary (you can really boost input of your amp!).

Jan 03, 2010 11:36 PM GMT
Chris C Replied:

Just to tie up loose ends. I used this Preamp at a long outdoor gig yesterday and it sounded great. I'm not going to touch it. I had it running into my Motion Sound KT-80 keyboard amp which also has a tube preamp channel.

Between the two and with no other effects I had very driven bassyblues sound and 100w of power. Infact I only had the output very low from the Preamp and I also had an output from the keyboard amp to the PA.

So I had a driven sound, Great onstage moniter though the keyboard amp, no feedback,and the huge crowd (slight exaggeration) could hear me fine over the rest of the band. I was in heaven, and there was free beer.

I really drove the tube in my ART MP PreampBoris andit sounded great. I may dial it back a bit in future, but I was enjoying the distorted sound and so were the punters.

In the past I have used differnt amp emulators with varing success and tried some un setup tube amps that where clearly no go good for harp (Glassy and feedback). For years I would just usea clean dynamic mic into the PA at gigs.So this is the first timethat I've really felt tubes working proper like and I liked it. Much different from the emulators. I think the emulators are setup the emulate the guitar players experience and not just the function if the amps. Thanks all for your advice.

BTW This is me and my band (Still very green but alot of potential) and I'm using a Line6 Microspider miked up. Will still use this as a backup and jams. Amazing little amp for the price. But I sound better now.

Jan 14, 2010 1:43 AM GMT
Andrew T Replied:

I'm hearing good things about the lowest power tubes (12AT7s, I think). Are you running into feedback problems at all? That's the beggest perk about lower power tubes; higher volume threshold before feedback. I might try an ART MP Tube Preamp...

Jan 22, 2010 3:07 PM GMT
Boris Plotnikov Replied:


Do you have red lamp always light while playing with overdriven ART tube? I have to try my ART tube that way. I remove it from my gig rig about 4 years ago as for my taste impedance transformer sounds better, cleaner and weights less than ART tube. However I read the manual and I never tried to overdrive it ((:

BTW Art tube can add good tube feel (if not overdriven) while playing with clean tone to PA. Anyway it's cheap peace of gear and sounds a bit muddy for my taste.

You sounds good on video. Are you hear yourself ok with so small amp? Is it micked to PA?

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