about AMZ minibooster

Started by makkimo, October 31, 2004, 12:05:34 PM

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makkimo

hi!
i'm learning so much about all that great things guys.... so thank you all!!!!
well, after that, what's better than a very stupid question ?!?(but very important for me..)i've been reading great things about the amz minibooster so i' ve just finished it!!!!
this is my first booster i really don't know what a booster must do exactly(never listened to it..) but this one is not what i expected it to be it seems a distortion pedal!!! :roll:  :roll:  ok distorts in a good way with not too high gain and i'm playing with a near to death epiphone
and a 15W peavy amp!!!!!!
where can i find a good sample of this pedal to fix my fear of a great wrong building???

:oops:  :oops:  :oops:
thanks

Mike Burgundy

the minibooster is not a wholly *clean* booster, but it shouldn't be a heavy distorter either. A booster basically reproduces your original signal, but louder. This might however overdrive the first stages of your amp. If the effect level is comparable to the bypass level, the distortion originates from the minibooster. You'll probably have a rather large bias-problem.
Might be a good idea to figure out what this does - this is not how the pedal was intended, but if it sounds cool, we want to reproduce it!

petemoore

Quote from: makkimohi!
i'm learning so much about all that great things guys.... so thank you all!!!!
well, after that, what's better than a very stupid question ?!?(but very important for me..)i've been reading great things about the amz minibooster so i' ve just finished it!!!!
this is my first booster i really don't know what a booster must do exactly(never listened to it..) but this one is not what i expected it to be it seems a distortion pedal!!! :roll:  :roll:  ok distorts in a good way with not too high gain and i'm playing with a near to death epiphone
and a 15W peavy amp!!!!!!
where can i find a good sample of this pedal to fix my fear of a great wrong building???
 >>>Your descript of the MB sound about right. It isn't a 'clean' booster, there's a distortion to it, [it has a unique 'rigidness' to it's mild distortion]. I find this distortion is cool sounding [I don't know of any famous recordings known to use it], 'different' and is an especially useful part of my effects rig.

:oops:  :oops:  :oops:
thanks
Convention creates following, following creates convention.

makkimo

it's louder+++ than the bypass when engaged so no problem about that
just i'd like to know what is the right distortion level it's supposed to have

Mike Burgundy

as long as it's significantly louder at breakup, my guess is it's fine.  Enjoy the circuit.

petemoore

Quote from: makkimoit's louder+++ than the bypass when engaged so no problem about that
just i'd like to know what is the right distortion level it's supposed to have
Read: Mu Amp article at GEO.
 You can try different gain transistors in it...MPF102 [lower gain] or J202 / NTE458 [higher gain]
Convention creates following, following creates convention.

Torchy

Makkimo,
  I have built quite a few of the boosters out there while looking for "that" sound for the other guitarist in our band.

 My recommendation is that the AMZ Mini-Booster has a sound all its own, as Pete says its kinda cool in its own right so I would keep it as that. For a cleaner boost, Id build the Mosfet version (its on GEO as well). Use a 100k trimpot for the 62k bias resistor and dial the sound in with that. I have built both boosts into one enclosure and they cover every boost situation I need. To my ears they roughly equate to the RC Boost and AC Boost (clean vs colourised sound)  :wink:

makkimo