Members FeelTardy Posted February 26, 2009 Members Share Posted February 26, 2009 I have a small pedal train. Boss TU-2 Ibanez TS9-DX EHX Black Big Muff Pi MXR 10 Band EQ Ibanez CS9 EHX Holy Grail Plus Boss RC-2 for looping Dimarzio 6" cables throughout. Mogami/Neutrik cable from guitar to board (10') and from board to amp (3'). all sitting on a cheapo gator board with an included power supply G-Bus 8. Okay, maybe not that small but the TS9, BMP, and EQ are pretty much 1 pedal for me - my own little analogman sun lion. The problem is that I get a high pitch whine out of the loop if I have more than three of the pedals included in the loop. And I just mean connected, not actually in use. I have gone through the entire group and individually they are silent (pretty close). So Each pedal is quiet on its own. I go through each cable included by just using two pedals and swapping out each cable. All cables are quiet on their own. I can even put three pedals in the loop and its okay. As soon as I plug the little adapter into the fourth pedal, I start to get the whine and its gets worse the more pedals I include. So I think the problem might be the power supply, or the surge protector, or just {censored}ty wiring in the house. Do you think the problem is just a cheap power supply (G-Bus 8)? What do you use for a power supply? I don't have a ton of $$ so its hard to justify dropping too much on a power supply, but this is starting to drive me nuts . Also is there a quality surge protector that would help without costing too much also? Link to comment Share on other sites More sharing options...
Members turnitto11 Posted February 26, 2009 Members Share Posted February 26, 2009 I think the gator power supply is using digital switching technology and it's daisy chained. Agian, I think. Some pedals don't like being daisy chained and some pedals don't like digital switching adaptors. And some are even worse when mixed. Read up: http://www.stinkfoot.se/andreas/diy/diyhome.htm Look under the "Powering your pedals" section. Link to comment Share on other sites More sharing options...
Members melx Posted February 26, 2009 Members Share Posted February 26, 2009 The holy grail + doesn't like being daisy chaned, try that on the psu that came with it and see if that solves the problem. Link to comment Share on other sites More sharing options...
Members FeelTardy Posted February 26, 2009 Author Members Share Posted February 26, 2009 Thanks for responses. I am going through the reading material now. It looks like exactly the info I was looking for. The holy grail + is a big offender for sure. I will try it with its own supply. I might also try separating the chorus. Link to comment Share on other sites More sharing options...
Members FeelTardy Posted February 26, 2009 Author Members Share Posted February 26, 2009 according to the reading material from turnitto Boss TU-2 - 35 mAIbanez TS9-DX - 7 mAEHX Black Big Muff Pi - 4 mAMXR 10 Band EQ - ?Ibanez CS9 - 10 mAEHX Holy Grail + - 225 mABoss RC-2 for looping - 50 mA Yeah, maybe I should isolate the HolyGrail, eh? even with that I am well below the stated limits for the power supply. It should be able to handle it, I am a bit suspicious of the G-Bus 8. Link to comment Share on other sites More sharing options...
Members melx Posted February 26, 2009 Members Share Posted February 26, 2009 Boss TU-2 - 35 mA Ibanez TS9-DX - 7 mA EHX Black Big Muff Pi - 4 mA MXR 10 Band EQ - ? Ibanez CS9 - 10 mA EHX Holy Grail + - 225 mA Boss RC-2 for looping - 50 mA Yeah, maybe I should isolate the HolyGrail, eh? yeah, some of the digital EHX pedals do this when you daisy chain them with cetain other pedals, the SMM/H does it sometimes too. There's a thread about it here, I guess that's why they give you a power supply with it! http://www.ehx.com/forums/viewthread/415/ Link to comment Share on other sites More sharing options...
Members FeelTardy Posted February 27, 2009 Author Members Share Posted February 27, 2009 So I put the reverb on its own boss adapter (i don't have the original one for it) and still had the whine. Not as bad, but it was still there. Turns out that the RC-2 is similar in its dislike of being chained. After getting another adapter for it, all is well. Except for having three adapters for one small pedal board. I wonder if I would have the same results with a dc brick or other supply. Thanks for reading resources, too. Link to comment Share on other sites More sharing options...
Members matterday Posted February 27, 2009 Members Share Posted February 27, 2009 This is why I voted the RC-2 off of the Boss thread. What a piece of {censored} pedal. Now you have to run 2 adapters instead of 3. Just toss it in the nearest trash can. Link to comment Share on other sites More sharing options...
Members johnrambo Posted February 27, 2009 Members Share Posted February 27, 2009 the outputs on the dc brick aren't isolated so it wouldn't help you out i don't think. you'd probably want a voodoo labs PP2+. Link to comment Share on other sites More sharing options...
Members matterday Posted February 27, 2009 Members Share Posted February 27, 2009 You can get away with something a lot cheaper. All those pedals don't need a PP2+'s capabilities. A Fuel Tank Jr would be perfect in this case and $80 cheaper. Link to comment Share on other sites More sharing options...
Members FeelTardy Posted February 27, 2009 Author Members Share Posted February 27, 2009 sweet! thanks Link to comment Share on other sites More sharing options...
Members turnitto11 Posted February 27, 2009 Members Share Posted February 27, 2009 Yup, don't get a Brick. It's just a One Spot in a box. Get a PP2+, or T.Rex Fuel Tank Jr, or some other transformer based power supply with isolated outlets. Link to comment Share on other sites More sharing options...
Members andreas Posted February 27, 2009 Members Share Posted February 27, 2009 The Fuel Tank JR has a limit of 120mA max for each output, which will be just fine for most of your pedals. The Holy Grail+ may be over that, though, which would force you to run two of the FT JR outputs in parallel (for 9vDC, 240mA). The PP2+ should work (output 5 or 6 in normal mode has 250mA). The DC Brick is basically the same thing as what you already have, so I wouldn't go there. Link to comment Share on other sites More sharing options...
Members FeelTardy Posted March 1, 2009 Author Members Share Posted March 1, 2009 Another little lesson learned on this. I bought a surge protector with emi/rf noise suppression. Now I can run the RC-2 chained in also without the whine. {censored}ty house electrical wiring. I am still going to look for a PP2+ or a fuel tank though. If someone has one up for sale, let me know. Link to comment Share on other sites More sharing options...
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