| Author | Message | ||
     Leslie Richardson |
I have a Music Man Sixty-five amp (6ca7 tubes, new GrooveTubes when Sylvania's died) and a 212-RH One-Thirty to join it. Does anyone have any clue as to what brand of speakers were installed stock in the cab? The numbers off the back of one speaker read "12GPGN8F" and "67-7548" I would like to build myself a second cab since the amp is capable of driving a "Full Stack", and I want to make sure I get the same amp/ohm rating speakers. I am open to suggestions. Thanks for all the help in advance. Also, does anyone know about the "hardness" of a tube? When I bought the new GrooveTubes I got a "Level 9" Hardness pair. What does this really mean? | ||
| Steve Walsh |
I believe that the speakers in this cab are either Eminence or EV (given the "130" designation). Also, if a tube is at level 9, it usually means that it will be very hard, but clean with lots of headroom. 5 is the middle of the pack and versatile. 1 is very soft and distorts very early. | ||
| Steve Kennedy |
You can decode speaker codes by looking at the info here: http://www.webervst.com/codes.html 67-7548 should decode as: 67 = Eminence (Manufacturer) 7548 = Manufactured the 48th week of 1975 12GPGN8F would be the model number of the speaker (probably a 12", 8-ohm from the digits used). The letters probably designate the type of frame (basket), the type and size of the voice coil, and the power rating. Hardness of a tube is how easy or difficult it is to overload the tube. Some tubes are softer (cannot take much input signal before overloading) and some are harder (can be driven harder before overload occurs). Consult the Groove Tubes web site for a detailed explanation of their numeric system. |