Hey guys. I did my experiments after reading about the principle of the thing, and using the frequency curve of the HC/DEC I made a simple work-alike, but with passive components. Because it's passive, it will introduce a volume loss, which should be compensated for by raising the volume on the multi or on the amp. Pero okay lang experiment lang naman. I did not follow the full roll-off curve, I went for a more conservative 6dB/octave rolloff and a slightly higher cutoff frequency. Here are my findings :
1. May binabagayan ang sound na eto, particularly the metalheads and the chug-chugers.
2. Unfortunately, it does affect the clean sound if you leave it in the circuit. The crystal "highs" of the guitar sound goes away. Good to have a bypass switch or something of the sort if you want to escape this effect. Or compensate at the multi using the onboard equalizer on your clean patch.
3. My test rig was a zoom G2, which from the start is not so bad already to begin with. Unfortunately, some of the digital fizz occurs in the frequency range where the notes occur. So there, you cannot eliminate the fizz completely as it is an inherent byproduct of the digitization process. What you can do is to remove it in those regions where no notes occur so that you don't hear them by themselves. At least.
4. Some sonic information, such as the pick attack will be dampened.
Teka...I have a much-worse multi...a Behringer XVAmp. Couldn't stand it. When I find it I'll subject it to the test circuit. Oo nga...when I remember, even a Boss GT10 sounds real sucky to my ears. With things like these, any improvement is a big improvement. Should try this in these setups.
Given this preliminary investigation, sure roger, let's meet up and test your device, test my device and other alternatives.
So ayun. May gamit sya and may tone na binabagayan sya. But IMHO, it's not for everyone. Me, for one, I sometimes play classic rock and the Marshall sound of that genre might not not take too well to the HC's frequency response curve. But don't take that as written in stone, kasi I'm using my current patches. Perhaps they can use a little more tweaking in the EQ section to compensate for the loss in the highs.
