We can install a master volume control (MVC)in those amps that were designed (most all vintage models) without one. There is a school of thought that feels that MVC's are bad news because they degrade the basic sound of the amp. In our opinion a MVC should do nothing more than vary the volume of the guitar signal and that a MVC that impacts negatively on the guitar signal is of poor design. There are three factors that determine the impact of the MVC upon the amp's performance: the type of MVC, the position of the MVC in the circuit and mismatched MVC impedance. Currently, there are two types of master control in circulation: the pre and post phase inverter (PPI). Ignoring for the moment,the position and impedance considerations, the PPI does vary signal level, but it also has very large impact on the frequency response and distortion and characteristics of the amp. Position, refers to where in signal chain the master is located. Our preference is to locate the MVC between the front end (pre amp) and the output section of the amp. Finally, the impedance of the MVC must be such that it does not excessively load the circuit driving it which will change the signal. To summarize, the MVC should only vary signal level, be pre phase inverter, installed between the front end and the power stage and be of high enough impedance so that no circuit loading occurs.
More often than not, a different speaker may bring you closer to the tone you have in your head. We are familiar with the performance of wide range of guitar speakers. If you need to replace a blown speaker or you want to change the tone of your rig, talk to us. We may able match your amplifier to a speaker that works better for you.
Changing the capacitors in the signal chain in a guitar amplifier often results in a significant tone improvement. We, after much research, have settled on a specific brand of polypropylene capacitors. This is subjective of course, we describe the change in the amplifier tone as having improved definition, you can better hear the individual notes in a chord, more air around the notes. Perhaps, most importantly (opinion again), we hear a significant improvement in presence. The sound comes more out of the box and is more present in the room with you. There is long standing controversy surrounding capacitor sound. We won't talk about that here, but look for an detailed article soon to be appear in the "the fake book". A note, the capacitors we like are not the polypropylene caps that seem to be the current choice of techs, players and some manufactures.