I will say that my entry level Zoom multieffects unit has never sounded so good. I haven't tried an A-B comparison test yet. So far quite pleased with this installation. I'm pretty sure that's correct and not just an error on my part, because I remember this same issue mentioned in an add-on reverb thread over on the Trinity forum and it does make sense looking at the schematic. If you install the effects loop where suggested by Trinity, it only works on Channel 2. I'm not sure why they did it this way but I figured there might be a reason for it and used the wire they sent. This made the wire a bit bulky and hard to work with. I did have a "what the heck is going on" moment until I realized I had forgotten to put a needed jumper wire across two terminals of the bypass switch.įor some reason Metropolous sends you two-conductor shielded wire, and you twist the conductors together to use them as one. I knew I would never remember which jack was which, so I printed a decal at Kinko's. It does get a little crowded where you run the new leads to the effects loop take off and return points suggested by Trinity. This made it slightly tricky to get the wires the right length but not too bad. And it wound up that putting the board upside down fit better. I couldn't find a spot to put the zero loss board that I was 100% happy with, but I wound up putting it just over V3 (I guess it's just under when you're done and the amp is right side up again!). Instead of a wire lead, I just used the coupling resistor to bridge from the can cap source to the terminal strip. There was a conveniently located empty spot in the chassis, so I put in an extra terminal strip (it's a big cap and I didn't want it just hanging in the air). That meant likely a very noisy signal, so the unanimous advice of Sluckey and Stephen at Trinity was to use an additional 47uF filtering cap on the zero loss power supply line. The only place I could tap "upstream" of the VRM was before the standby switch, off the first filtering cap (on a TC15 that is the first half of a can capacitor). One of the issues I ran into was that since I built my kit with Trinity's VRM - an attenuator that works by decreasing B+, and since the zero loss circuit board is powered by B+, it would often be getting power supply well below the recommended voltage range. I didn't get a lot of help on the Metropolous forum, for what its worth - thankfully I got good suggestions from Stephen at Trinity and here on el34world. If your amp isn't in the Marshall family you will have some adapting to do. Metropolous is mosly about Marshall-type amps and the instructions are definitely geared that way. So I ordered a Metropolous Zero Loss Effects Loop and today had some time to install it. Some wiser more experienced folks suggested I put in an active effects loop instead, and then build a standalone reverb. When I was just starting Phase One I was trying to figure out how to put an add-on reverb in my Trinity TC-15 kit.
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