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wilbur Junior Member
Joined: 04 Jan 2006 Posts: 86 Location: Belgium
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Posted: Mon Jun 24, 2019 9:24 am Post subject: Power supply hum |
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Hi All,
Happy to be back on this forum again. I recently bought a Triton Rack as a replacement for my Triton Extreme for my live rig. I mainly use this as a sampling device and vocoder (Queen coverband hooray).
I noticed when introducing this piece of gear, a lot of hum was added to all my signals. I use balanced wherever possiblem, have a DI with ground lift to fix some other issues (eg ipad), but I can not get this issue solved. After thourough investigation, I noticed that the powersupply is magnetically influencing my passive DI, but also other gear.
- Did anybody encounter this too?
- Any idea how to solve this?
- Would it be smart to try another powersupply? This one was mentioned on the forum too but has other properties: https://www.ebay.com/itm/NEW-AC-POWER-ADAPTER-for-Digitech-PS0920-4-Pin-DIN-/223184598644?oid=220820077602. Since the device is build-in in a rack, replacing it with a less heavy PSU would also be great. _________________ Live Gear: Triton Rack, Kurzweil PC3K8, Waldorf Pulse Original, Lexicon MPX1, Behringer Xair, iConnectivity Midi4+, Palmer Pan 16
https://www.facebook.com/tobiasvanderhenstmusic/
https://www.facebook.com/Magnifico-Belgian-Queen-Experience-315448148558281/ |
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Joe Gerardi Platinum Member
Joined: 06 Oct 2012 Posts: 534 Location: Savannah, GA
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Posted: Mon Jun 24, 2019 9:43 am Post subject: |
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Teach it the lyrics!
Sorry, I can't help you, but couldn't resist.
(In my defense, I was left unsupervised.)
..Joe _________________ Current setup: Korg Kronos 61, Roland XV-88 Korg Triton-Rack, Motif-Rack, Korg N1r, Roland M-GS64, Alesis QSR, Yamaha KX88 & KX76, Roland Super-JX, Juno-Stage, Kawai K4, Kawai K1II. |
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voip Platinum Member
Joined: 27 Nov 2014 Posts: 3792
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Posted: Mon Jun 24, 2019 1:27 pm Post subject: |
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Move the PSU, and any other PSUs away from the DI box, if possible.
Try running as much of the rig as possible from a single power outled, using a multiway adapter, to minimise ground loops. |
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wilbur Junior Member
Joined: 04 Jan 2006 Posts: 86 Location: Belgium
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Posted: Mon Jun 24, 2019 1:36 pm Post subject: |
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voip wrote: | Move the PSU, and any other PSUs away from the DI box, if possible.
Try running as much of the rig as possible from a single power outled, using a multiway adapter, to minimise ground loops. |
Thanks! I will try to move my DI box further away from the PSU but my rack space is limited. I use a multiway adapter for the full rack already. _________________ Live Gear: Triton Rack, Kurzweil PC3K8, Waldorf Pulse Original, Lexicon MPX1, Behringer Xair, iConnectivity Midi4+, Palmer Pan 16
https://www.facebook.com/tobiasvanderhenstmusic/
https://www.facebook.com/Magnifico-Belgian-Queen-Experience-315448148558281/ |
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stuartpryer Approved Merchant
Joined: 10 Jan 2002 Posts: 368 Location: Cornwall - U.K.
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Posted: Tue Oct 01, 2019 9:23 pm Post subject: |
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Hi, you may have an earth / ground loop. Normally you only want one of your instruments/mixer grounded at the power supply.
Cheers
Stuart
Www.stuartpryer.co.uk
Home of triton controller software _________________ Stuart Pryer
Triton Controller, Midi toolbox and Fractal Sequencer Software
web site https://stuartpryer.co.uk
e-mail stuartpryer@gmail.com
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stuartpryer Approved Merchant
Joined: 10 Jan 2002 Posts: 368 Location: Cornwall - U.K.
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Posted: Tue Oct 01, 2019 9:42 pm Post subject: |
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Hi, you may have an earth / ground loop. Normally you only want one of your instruments/mixer grounded at the power supply.
Cheers
Stuart _________________ Stuart Pryer
Triton Controller, Midi toolbox and Fractal Sequencer Software
web site https://stuartpryer.co.uk
e-mail stuartpryer@gmail.com
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