Been experimenting with it, you can read about the trial and error http://forum.frugalguitarist.com/forum/default.aspx?g=posts&t=339. So far...
The amp stock uses an TDA2030 for power. On a tip at another forum, I subbed in an LM1875 which is a pin for pin match. Per the spec sheet, looks like it's capable of a bit more power (nearly double?) using the existing power supply. The spec sheet for the TDA2030 lists typical performance of 9 to 11 watts @ 8 ohms (based on measurement method) while the LM1875 lists a typical performance 25 watts @ 8 ohms. Of course the LM1875 needs more power to generate that output but has a wide swing of operation. I subbed it in and it is louder for sure. Once I'm done will all the mods I'll A/B/ it versus spec.
Of course this will require a new speaker to handle the additional power which will be the second mod.
Third up, the amp uses a red led pair for clipping (in conjunction with a secondary boost circuit). I'm currently experimenting with them subbing in various diodes and I've got some mosfets I'm going to load up tonight.
Stay tuned!
The amp stock uses an TDA2030 for power. On a tip at another forum, I subbed in an LM1875 which is a pin for pin match. Per the spec sheet, looks like it's capable of a bit more power (nearly double?) using the existing power supply. The spec sheet for the TDA2030 lists typical performance of 9 to 11 watts @ 8 ohms (based on measurement method) while the LM1875 lists a typical performance 25 watts @ 8 ohms. Of course the LM1875 needs more power to generate that output but has a wide swing of operation. I subbed it in and it is louder for sure. Once I'm done will all the mods I'll A/B/ it versus spec.
Of course this will require a new speaker to handle the additional power which will be the second mod.
Third up, the amp uses a red led pair for clipping (in conjunction with a secondary boost circuit). I'm currently experimenting with them subbing in various diodes and I've got some mosfets I'm going to load up tonight.
Stay tuned!