Posts Tagged ‘boost’

Update: This is the final version of the DR Booster:

Dr Booster final

The R10 is actually a pot, not a resistor.  With R10 at 10k, the boost is 19.1 dB; At 0 it is 3.5 dB.  The frequency band is 33 Hz – 2.9 kHz, with 330 Hz as the center. (more…)

HarmonicI like this boosted filter.  The 400 Hz peak is accompanied by a 3.2 kHz peak of a smaller amplitude.  This accents the 4th Harmonic, which is consonant.   (more…)

I was watching the Steve Morse Rig Rundown at Premiere Guitar.  Steve stated that he uses the Neck pickup to solo in the higher pitches, so it isn’t as sharp on a person’s eardrums.  I’d never really thought of it in that way and not used it in that way very often.  So, I tried it out repeatedly. (more…)

I put together a rudimentary representation of the effect on filter curves when setting a graphic EQ.  It isn’t exact.  Use it to get a general idea for the way a graphic EQ shapes the signal. (more…)

Blank Settings Form For Boss GE-7

Using an equalizer to boost the guitar’s input signal makes a lot of sense.  It provides a clean gain and a lot of headroom.  Aside from boosting the signal, it can, of course, be used to carve out specific frequencies.  Unlike most overdrive pedals, an equalizer has the ability to be very precise with multiple frequency bands and can create special effects.

The downside to this specific pedal is noise.  It uses cheap tantalum capacitors in the signal path.  This creates a hissing sound when the sliders are moved away from the zero mark.  The MXR 10 Band EQ is reputedly better, but I don’t own it and can’t comment about it further. (more…)

June 2016- I realize the flow of this article could use some work.  I have plans to reorganize it at another time.  

We’ve looked at the input and Clean, the Mode voicing and Gain control, V2 and V3EQ and modes and Presence.  I am going to bring it all together and take a less detailed, wider, view of the system as a whole.  I’m concentrating on Channels 2 and 3, since they are the primary identity; the “Recto” sound.

Additionally, I’m going to cover a little bit about the power amp, even though I have not concentrated on it in my writing this year.  I think the intention of Mesa when designing it is misunderstood.

I’m going to be making certain assumptions based on the overall design and historical precedents in guitar amplifiers and Mesa designs.  I could be wrong, but I am presenting it the way I best understand it, based on how everything interacts, and considering the differences between this amp and others much like it.  Mesa tends to tune their amps by ear, so some of the effects from changes may be unintentional or accidental.  That doesn’t negate the actual effects from being valid points innovation on the design.

For filter analysis, I’m using the Okawa website.

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