Changing Things Up, Rediscovering Wow-ness!

[László]

At PRS Experience 2013, David Grissom mentioned the test points. He said he checked them periodically just to monitor his tubes. If one of the values changes, it probably indicates a problem with that tube.

Yup, the manual suggests using the test points to check on the tube status, etc.

 

[Boogie]

Well, that'd be true of any amp, since most of the guitar's range is below 1Khz. The open high E's frequency is only about 330 Hz. High E 12th fret is about 660 Hz.

At the 24th fret the high E is about 1.3 Khz.

The low E's fundamental is around 82 Hz. Of COURSE your amp likes to play below 1000Khz!

Obviously harmonic overtones play a big role in any instrument, but mostly the amp is working below 1Khz, and can't actually reproduce anything over 5Khz due to its own frequency response limitations. By that time, the high frequencies are relatively attenuated compared to the lower ones anyway.

That'll teach me not to proofread my work. Let me rephrase that...less than 100Hz, not 10x higher in the upper- mid range frequencies.