[quote name='JapanAxe' timestamp='1373126473' post='2134002']
I agree with the second statement, but the decoupling capacitor at the input of each buffered pedal will shave a little bit off the bottom end, and by the time this has happened several times, you can expect a significant loss of bass.
Damon, once you have worked out which pedals are the worst culprits (try them in groups of 2 or 3 as well as individually), I suggest you look to true-bypass these with something like the [url="http://www.thegigrig.com/acatalog/Loopy2-301.html#SID=13"]Loopy-2[/url] or [url="http://www.thegigrig.com/acatalog/QuarterMasterhome.html#SID=1"]Quartermaster[/url] from [url="http://www.thegigrig.com/"]TheGigRig[/url]. I also recommend leaving the best buffered pedal connected near the front of the signal chain, as it will happily drive the next pedal or a long cable run to your amp.
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I would agree if the tone suck/volume drop was minimal, however from what he is describing in such a short relative pedal chain, I think a pedal has a fault.
If you believe it to be the 3 Boss pedals together causing the issue, have you tried those alone and the rest alone and see if the issue only exists in one?