New Big Muff doesn't sound as good...

Started by Danny G, January 15, 2005, 08:25:37 PM

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Danny G

My first build was a GGG Big Muff Pi, made way too big in a Radio Shack plastic box.  I figured I'd build me and my wife new one's (old one was hers).

So I build the first one (to go in her Russian BMP box).  I built it pretty identical to my original--just WAY smaller, heh--but had to use old 0.1uf tropical fish caps because they were all I could find.

Plugged it in and compared it to the orinigal.  The new one sounded dead and lifeless.  Haven't had a chance to audio-probe it or troubleshoot it yet.  

So my question is this:  Do tropical fish poly caps sound way worse than metal films?  I'm hoping I can just swap these out and be ready to rock.

Muchas gracias

LP Hovercraft

I'd be quite suprised if that was the case.  Tropical Fish caps should sound just fine in there.  The cap composition shouldn't make the difference between dead and Superfly TNT (Especially when moving to a high quality cap like ole Mr Stripey) Are you sure that you are using the right value components all around?  Putting just one decimal in the wrong place has resulted in serious rolloffs of highs and gain for me.  I used all Sprague Orange drops in a Big Muff (very similar composition to tropicals) and the thing was positively smokin'  Are you using all 2N5088's?

Danny G

I wired it up long enough to fire it up and comare it to the original BMP.  Haven't even looked at it since then (a week ago).  I'll bust it out and trouble shoot it some.  I built it pretty fast and didn't socket the trannies, so who knows--I could have fried something.

Kinda glad that the caps shouldn't be the problem, they look pretty cool!!!  (And I bought 30 of them to build 3 BMP's...)