6/12/2023 0 Comments Bass microsynth diyBut if your bypass reference is the boosted guitar signal, the effected signal seems to have trouble keeping up and you also send a really hot signal through the OTAs. If you compare the microsynth sub-octave/etc signal levels to the 'true bypass' signal, the effected signal can get VERY loud. The early versions used the boosted guitar signal for bypass, which made the 'clean/bypassed' output not only incredibly hot, but oftentimes distorted. If i ever have any issues with it trackign i jsut pick harder or hit it with a Dynacomp set for a slight boost. there's the slider on the top, and a small screw accessable through a hole in the bottom. In some ways it seems more trouble than it's worth to me to try and get this to work off of 9v, but I'm curious anyway, because I believe David Cockerell who worked on the original is back at EHX and is behind this version too. There's a few ways to adjust the trackign o nthese. Seems like EHX got penny-wise and instead of using 2x value caps in the smoothing filter of the bass version, they simply use 2x value resistors instead. The filter looks different though and that (to me) is the critical area.and where some of the voltage differences are more significant and require value and layout changes. I never noticed the fine, though only partially complete work of tracing the XO version was done and offered here.įrom what is drawn, the values and connections look quite similar to the bipolar voltage version of the schematics from Dec 1978. A mod (which is excellent but pricey) is the only real solution to eliminate the gating effect. So, I have concluded that either a comp or EQ before the synth, combined with probably humbucker puckups and proper setting of the trigger seems to be the only recipe to "mildly improve" the gating. The latter is the ONLY trim pot available on newer XO units and does NOT alter the gate whatsoever. So yes, while they touch on a "gain pot" that can affect the gating, it is the INPUT gain, aka, the SQUELCH, and NOT the OUTPUT gain, which is used to achieve unity depending on pickup strength. THAT pot is no longer on the newer units. Unfortunately, both articles, including the pcb photo of the newer XO version, all mention the same problem: the older ones had TWO trim pots (both the bass and regular versions), one of which was overall gain-which still exists today, while the other pot discussed on the bass forum thread was referred to as an "input gain", and refers to the signal strength before the effect, aka, the pot which determines how much signal is fed into the unit to avoid the abrubt gating effect. It's a $300 pedal, not like I'm not put some time into making sure I've exhausted all known resources before I ask for possibly some other advice. All I said was that I looked and it's a confusing mess of parts that all look the same to me. I appreciate you trying to be helpful, but being helpful while being nasty (and wrong.) isn't doing anyone any good. So yeah, I have done my research, most of which I had already done before posting this, hence me trying everything I had tried already and previously mentioning in my opening post. He also tweaks a few other smaller things, including true bypass on the older models. Other subtle difference include using humbucker guitars, dropping the trim slider down to almost zero, jacking the gain trimmer a little, or have Shotgunn mod it, which adds a squelch control to the XO version, an expression jack for controlling the stop frequency, modding it to bass synth specs, cranking the octave up, reducing the fuzz level, adjusting the middle gain amount for a woder range of loud, super cranking the bass octave and adding a footswitch called bad arse for even more bass boost. The issue I am having is actually quite common for people to ask about, including lack of squelch/gain trim pot (something else you would have known had you followed your own research advice rather than just assume and pass it off as fact then say I shoulda done MY homework.) and short of a pricey mod for an already 300$ pedal, only compression or the eq trick I mentioned earlier are the only kind of improvements you can make (not remedies or cures-it just helps a little bit. The new XO one has since removed the squelch/gate knob and moved the gain/level trimmer to the inside. The old ones had the gain/level trim on the bottom accessed through a hole, but the squelch was internal you hadda remove the plate. So you just assumed then kinda snakily chastised me for something I didn't do (or DID do). Oh, did I say that I didn't look it up? Nope.
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