Knockout - new from ehx

[searoad]

attack equalizer that "Convert Gibson to Strat or Strat to Telecaster."
wow!
does any diy project do like this?
maybe a compressor?
http://i95.photobucket.com/albums/l152/mdlesser/EHX_Preview2.jpg
http://www.gearwire.com/electro-harmonix-knockout.html

[mars_bringer_of_war]

Search high-pass filter and low-pass filter, also splitter/mixer, such as this: http://www.runoffgroove.com/splitter-blend.html

[Bernardduur]

I've read somewhere it is "just" a 3 band EQ pedal (bas / mid / treble) with weird names for the parameters

[Dragonfly]

variable low pass filter ----->simple boost circuit------>variable high pass filter
I                                                                                                              I
I                                                                                                              I
-------------------->clean buffer / boost with volume control ----------------

[mars_bringer_of_war]

Isn't the "dry" control just sort of a blend, mixing straight signal with eq'd signal?

[Mark Hammer]

The "Woody" acoustic simulator I made does something like that, albeit with some "exciter" clipping of the high end.  There is a fixed lowpass, a fixed highpass, and some clean signal.  When the lowpass signal level is increased, it tends to cancel out a bit of the mids in an interesting and useful way; conceivably due to some group delay in the lowpass filter.  I would imagine that a variable blend of the clean signal could achieve some of what the Knockout does.  You'd need to pick both your filter slope and corner frequency wisely, though.

http://hammer.ampage.org/files/Woody.zip

[Ben N]

The description sounds rather like the Carl Martin Contour & Boost, with a mixable straight signal. I was not to impressed with that one, backin my obsessive pedal-buying days.