Power Supplies vs 1Spots...am I a sucker?

Oh wow when they showed the HX my helix makes that noise if it’s near the computer or usb is plugged in. But helix uses an IEC cord and its own power supply so not sure what I can do about that.
 
yeky83 said:
I already mentioned why it gets recommended, it's cus people are stuck with assumptions that hasn't been true for a decade. Voodoo Labs should just stop making those units cus they sell better ones now, but I guess they still make enough money off of misconceptions.

Nope, sometimes digital pedals introduce noise in simple daisy chain powered signal chains, not just in multiple audio path cases.

Here’s a demonstration:
Click to expand...

My only criticism about that video is, Jimmy Fallon is a dildo.
 
yeky83 said:
Voodoo Labs should just stop making those units cus they sell better ones now, but I guess they still make enough money off of misconceptions.
Click to expand...
Yeah not sure why they still make them. Kinda weird. The PP3+ is an awesome PS. Never a single problem with it.
 
yeky83 said:
Nope, sometimes digital pedals introduce noise in simple daisy chain powered signal chains, not just in multiple audio path cases.

Here’s a demonstration:
Click to expand...

That's interesting. Weird how some pedals do it and others don't. I haven't used an 1-Spot in ages, certainly not with these digital pedals. Good to know. .
 
I played last night with one 1Spot on the Tonex One and the other powering the GLXD16+, the Mooer E7 and the TC Sentry. Worked very well, there still was a tiny wheeze with the sentry off, but nothing compared to running all the pedals on the 1Spot. The same wheeze I had with the Voodoo Labs PP2+. I have to test to see if that is on the tonex one when it is all by itself. Maybe the GLX16D+ needs to be on its own supply? I think I found the Helix FX loops slightly noisy enough to cause the whole thing on some tests before I had the Tonex and I think I read or watched some video showing the same issue. Whatever it is, this should work fine until my Cioks DC7 shows up
 
TONEX PEDAL, NOT TONEX ONE
9-15V 400mA, NOT 9-12V
BASIC FAAAACTS

Sometimes higher voltages help with headroom but in this case it receives a wireless signal so it shouldn’t matter. Looking at the manual… it states max output 7.5Vp-p so 9V is fine, it’s just a matter of delivering ~3.6W and it has tolerance for up to 15V.
 
My experience is: some pedal combinations do work with a daisy chain, some don't. Meaning "work" in a sense of working quietly.
I recently made a small board with:
- Behringer CC-300 (analog)
- Boss PH-2 (analog, converted from ACA-style supply to PSA-style)
- Boss DD-7 (digital)
--> these run in a DIY-ish THC effects uC-controlled relay bypass loop (just one loop).
- in front of that loop I have a simple buffer, and after the relay loop there is a Korg Pitchblack (old version).
- all this runs into a higain amp

I can power these by a daisy-chain, as long as I use an old linearly regulated power supply (delivers up to 1200mA), PLUS a Joyo noise blocker directly after the linear supply.
Omitting the Joyo, there is some hum (loop in bypass), which gets annoying with higain and high volume.
Using a switchmode power supply plus Joyo still inhibits some noise (not hum). Need to check the Boss PSA-S version, which is said to be quiet.
Strangely enough, when I leave out the Boss phaser, I don't need that noise blocker i.o. to get rid of the hum when powered with the linear supply. Can't remember what happened, when I used the switchmode supply.

In fact, this Joyo noise blockers can help in many situations.
I once had a bigger board with a mix of analog and digital pedals in combination with a G-Lab GSC-2 relay loop switcher. That one has two isolated power supply sections built in. No matter what combination I stuck the pedals into those two sections, there was always some hum or noise (can't exactly remember). Once I put a Joyo noise blocker somewhere, things got quiet.

To get to my two points :giggle:

1. According to my experience, it's difficult or impossible to predict what happens with a given setup
2. The Joyo noise blockers can help in many situations an cost next to nothing. They in fact are a chip based isolated switchmode power supply section. Basically something which would be built in a modern multi-power supply multiple times, but as a single unit in a very tiny enclosure.

https://www.joyoaudio.com/product/95.html
 
20220821_135605.jpg
20220821_142354.jpg


I got the Decibel Eleven Hot Stone Deluxe to power up; a Decibel Eleven Loop to footpedals under MIDI control, a Boss GE-7 band Eq, a MXR Ten Band Eq, two Seymour Duncan SFX-01 Pickup Boosters, Arion Hot Watt 2, a EHX Ravish Sitar simulator pedal and a Behringer AM100 Acoustic Modeler

Two of the Power ports have a knob to let those ports power pedals between 5 to 9 volts and the transformer and osolated shielded power ports are 100 % quiet and clean.
 
headcrash said:
My experience is: some pedal combinations do work with a daisy chain, some don't. Meaning "work" in a sense of working quietly.
I recently made a small board with:
- Behringer CC-300 (analog)
- Boss PH-2 (analog, converted from ACA-style supply to PSA-style)
- Boss DD-7 (digital)
--> these run in a DIY-ish THC effects uC-controlled relay bypass loop (just one loop).
- in front of that loop I have a simple buffer, and after the relay loop there is a Korg Pitchblack (old version).
- all this runs into a higain amp

I can power these by a daisy-chain, as long as I use an old linearly regulated power supply (delivers up to 1200mA), PLUS a Joyo noise blocker directly after the linear supply.
Omitting the Joyo, there is some hum (loop in bypass), which gets annoying with higain and high volume.
Using a switchmode power supply plus Joyo still inhibits some noise (not hum). Need to check the Boss PSA-S version, which is said to be quiet.
Strangely enough, when I leave out the Boss phaser, I don't need that noise blocker i.o. to get rid of the hum when powered with the linear supply. Can't remember what happened, when I used the switchmode supply.

In fact, this Joyo noise blockers can help in many situations.
I once had a bigger board with a mix of analog and digital pedals in combination with a G-Lab GSC-2 relay loop switcher. That one has two isolated power supply sections built in. No matter what combination I stuck the pedals into those two sections, there was always some hum or noise (can't exactly remember). Once I put a Joyo noise blocker somewhere, things got quiet.

To get to my two points :giggle:

1. According to my experience, it's difficult or impossible to predict what happens with a given setup
2. The Joyo noise blockers can help in many situations an cost next to nothing. They in fact are a chip based isolated switchmode power supply section. Basically something which would be built in a modern multi-power supply multiple times, but as a single unit in a very tiny enclosure.

https://www.joyoaudio.com/product/95.html
Click to expand...

Just for the records: I bought a Boss PS-230S and it works perfectly quiet with my setup described above, but does so even WITHOUT the Joyo noise blocker.
The switching wall wart style supply does not seem to be something special. But there is some kind of lump or bump in the cable, quite towards the end of it. You can unscrew it, and there is a small PCB inside with two toroidal chokes on it. Maybe this is the magic :grin
 
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