Show posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Show posts Menu

Messages - MTmopars

Tubes and Hybrids / Re: Randall G3 combo
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.
Amplifier Discussion / Re: Watts vs Volume (db)
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.
Tubes and Hybrids / Randall G3 combo
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?
The Newcomer's Forum / Newb under the Big Sky
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.
Amplifier Discussion / Re: Watts vs Volume (db)
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.