Pre amps...D'OH!

[Davo]

So I get the idea to swap out preamp tubes in a cheapie preamp I have.   I intended to record the hiss at high gain and find the quietest tube to use with it.

The  mp3 says it all I think.

[Flash Harry]

Get one with FET front end!

Smooth and quiet and pretty much bomb proof!

[launched]

Go buy a soldering iron, fix it and try again!! Or deep six it...


Mark

[Davo]

Go buy a soldering iron, fix it and try again!! Or deep six it...


Mark

The wires were incased in a clear plastic "ribbon"  Im gonna attempt to solder it, since I have nothing  to loose.

[guitarron]

So I get the idea to swap out preamp tubes in a cheapie preamp I have.   I intended to record the hiss at high gain and find the quietest tube to use with it.

The  mp3 says it all I think.

what preamp is it?-just curious

[Davo]

It is the Art Tube MP.  They go for 50-60 bucks new, so I wasnt expecting the world.
http://www.artproaudio.com/downloads/manuals/omtubemp.pdf

What I did was max the gain and record the hiss into the MBR, thinking that would be a good way to compare for hiss-which it had plenty of.  Perhaps thats not a valid test but it came to me last night while reading about experimenting with pre-amps.

I suspect the "tube" is all hype, id rather have a quiet preamp then a hissy tube preamp.

[guitarron]

i have a similar unit- a dual mp-rackmount-basically a stereo version of yours-
i have yet to experience the hiss like that-been lucky i guess
hope it works out for you-keep us informed either way

[launched]

Some preamps don't take full advantage of the tube anyway - there are some Behringer models that have an LED under the tube to make it look like it's glowing. What the heck is up with that?

[Davo]

Some preamps don't take full advantage of the tube anyway - there are some Behringer models that have an LED under the tube to make it look like it's glowing. What the heck is up with that?

Image...its da TUBES you see.  On the plus side,  I managed to repair an old dod chorus pedal I had lying around, so im one and one right now.

[Davo]

i have a similar unit- a dual mp-rackmount-basically a stereo version of yours-
i have yet to experience the hiss like that-been lucky i guess
hope it works out for you-keep us informed either way

The hiss came from maxing the gain and output, though at working levels the hiss was still pretty obvious.  On that note the MBR is pretty dang quiet.