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Ampeg Gemini Owners: Get in here


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Here's the deal. I just plugged into my Gem I for the first time in a while. It sounds absolutely amazing. Way better than I ever remember it sounding in the past. I have the treble at like 90% and the bass at about 95%. Volume at about 40% on Channel 1. It's breaking up ever so sweetly. Bridge pickup of my Casino + SHO set for a few dB of boost and it's chimey, beautiful goodness. Add the AC Booster in and it's just golden, cummy overdrive.

 

I don't remember this amp ever sounding awesome with dirt or with it's own overdrive. Maybe I have something on the fritz and I'm about to have to re-tube this mother{censored}er or something. Who knows.

 

Does anyone elses Gemini break up at 40% volume?

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Sounds about right to me, I know my Gem I is definitely not a high headroom amp.

But thats why I love it


Edit: what kind of speaker do you have in yours? that could also make a difference if you were needing more volume/less breakup

 

 

 

It's the stock Celestion.

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IIRC, the tone stack in those is passive and "cut" oriented, so goosing the tone knobs way up also increases the level. Dial both back to the middle of their range and if I'm right, the level (and overdrive) should both decrease. As Mike said, hitting it with a SHO (or any boost) will also cause the onset of distortion to occur lower on the volume knob... what you're describing all sounds "normal" to me too.

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Obviously, the boost contributes to the total gain of the amp and adds more distortion.

 

I just don't remember there being this much gain without any boost even. It's breaking up almost like a Princeton or smaller amp would. Sounds glorious, though, so I'm not complaining ;)

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Yessir, stock tubes from 60-whenever.


It's the stock Celestion.

 

 

Well they may be getting tired, but Ampeg never ran their tubes that hot in these amps - I'm still running mine.

 

Ampeg never used Celestions. A stock speaker for that amp would have been a CTS or a JBL. I'm sure the Celestion has some effect on it breaking up earlier - is a 25w Greenback?

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Clayton, did you try rolling the tone knobs back to the mid-point yet? I'd be interested to hear whether or not that changed the amount of breakup. Also, are you cranking those controls higher than you used to?

 

 

I have a Gemini II and the eq controls definitely have an effect on how much the amp wants to break up. If the op is running The treble on 95% and the bass at 90% it's most certainly gonna get cooking earlier.

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