
tigerstrat wrote:Then in 1990 the MXR was ditched (along with Tiger) for those two Boss overdrives...






xero92 wrote:Now here is something I have always wondered about, seeing as we are on the topic of FX and amps and settings: What does the 'Presence' knob do. I have messed around with it a tone on all different amps, and I really don't understand what it does or notice much change when i turn it up or down.

kenneybonz wrote:that helps me a lot too.. what is the overdrive of choice .. birthday coming up.. i see ibanez tube screamers and even THEY come in several types?
or is that a dumb question?

xero92 wrote:What does the 'Presence' knob do.
http://users.chariot.net.au/~gmarts/ampbasic.htm wrote:Valve power amplifiers often provide an additional presence control (which reduces negative feedback in the power amplifier section) to provide a small amount of boost at frequencies above the treble control.


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