TC electronic nova modulator

On paper this is a great effect. It’s actually 2 effects, has 4 parameter for each one, and has chorus, tri chorus, flanger, phaser, tremolo and vibrato.

i found a used one and have been running the cycles through it, and it sounds great, but recently I noticed a hi pitched ring coming from the pedal. I noticed a lot more when I switched it from a master insert effect to a mono insert on one channel. It varies depending on the algorithm, but once you hear it it’s impossible to unhear.

a few possibilities:

1. It’s a bad unit

2. there’s a problem with using it with line level signals (but I have other tc effects with no problems) and I need some kind of box to solve the problem  

3. It just sounds like that, as do many older effects.

in any case, I got it because I wanted a very transparent effect, because I definitely am not making lofi 24db lpf at 6khz anymore, so I need to fix it or return it and get an eventide modfactor

Did it come with the original power supply or an aftermarket one?  My first two guesses would be badly shielded OLED display or noisy switch mode PSU, and since that pedal doesn't have an OLED that's out.

  On 10/22/2020 at 10:01 PM, TubularCorporation said:

Did it come with the original power supply or an aftermarket one?  My first two guesses would be badly shielded OLED display or noisy switch mode PSU, and since that pedal doesn't have an OLED that's out.

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I believe it’s the original power supply, but I can hear the LFOs in the hum, if that helps. 

Do you have anything connected to a computer via USB or sharing a powered USB hub?  Could be a USB ground problem maybe.