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Messages - MTmopars

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Tubes and Hybrids / Re: Randall G3 combo
« on: April 06, 2014, 10:53:45 PM »
I found when the amp was assembled a bolt that holds the amp in was over tightened breaking the clip that holds the nut. When I opened it up pieces came out. I am not sure how me putting weight on the top would Trigger it. I put it back together an d played through it and couldn't reproduce the issue.  Hopefully this was all that was wrong.

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Amplifier Discussion / Re: Watts vs Volume (db)
« on: April 05, 2014, 04:13:52 PM »
I stand corrected on part of my post. 10 db is doubling perceived volume. 3db is the gain from doubling power or speakers. It has been about 10 yrs since I was active.

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Tubes and Hybrids / Randall G3 combo
« on: April 05, 2014, 10:21:18 AM »
I have a Randall G3 75w G3 combo amp. I have a problem with the volume. When I play the volume will suddenly get very loud then a bit later go back to normal volume. I have tried different guitar cords.  I was thinking maybe it was related to where I was plugging in being on a power strip with my pedals. I ran it stand alone being the only device plugged in and still have the issue. I have noticed I can cause the change by putting some weight on the top of the cab. I suppose I should just open up the cab and take a look. What do you guys think it could be?

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The Newcomer's Forum / Newb under the Big Sky
« on: April 05, 2014, 10:14:12 AM »
New guy from the Big Sky state.  I've been playing off and on for a lot of years but never really got serious until last year. Finally puta band together. I play a Washburn ST500 boneyard. Throughout the years I have tried so many amps and pedals but have yet to find an amp I am happy with. From a vintage Reverb Deluxe to my current Dime half stack. I stumbled across this forum looking for reviews on the Dime.

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Amplifier Discussion / Re: Watts vs Volume (db)
« on: April 05, 2014, 10:08:39 AM »
Such a good thread. While I am fairly novice to guitar amps and their application, I used to compete in car audio and many of the same principles apply here and have been stated.

Every 3dB is doubling the volume. So to double the volume get a 3dB more efficient speaker, double the cone area, or double the power. In car audio completion you could also port the enclosure to give 3-9dB boost at the frequency the port is tuned for.

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