Quote from: Tassieviking on February 28, 2023, 11:57:28 AMIt seems there are a few around with the same problem.
https://www.tdpri.com/threads/orange-crush-35rt-speaker-buzz.834557/
https://www.reddit.com/r/orangeamps/comments/zyl3y0/35rt_constant_buzz/

I had seen those too, however this happened with two brand new ones, and another new Bugera v5 Infinium I bought while waiting on the new 35RT to arrive. Looking forward to trying another house, but at that point I'm not sure what it tells me if it works ok elsewhere.


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I'm using D'Addario cables after suspecting the issue may have been older/lower quality cables. I can try the brand mentioned and see if that helps any.

I haven't yet tried another home, but am going to soon. I was trying to rule out any devices in my home that may be causing the issue. I have a home energy monitor that has amp meters wrapped around the mains that I wonder if it's contributing to the issue or not.

Otherwise, it could be lower quality amps with gain cranked up, but it seems pretty harsh and not something I've seen in demos or reviews on either amp. I get it if people want zero buzz/hum, but this seems excessive.


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Just to follow up on this, I got a replacement amp and it has the same issue. Clearly not the amp, as this is the second brand new one I've tried, and also bought a Bugera v5 infinium in the meantime, which also has the same issue. The Bugera is only 5w and has an attenuator which dampens the hum/buzz. I put an attenuator on the Orange RT35 as well, which makes it tolerable. I tried turning off some things in the house (power strips with computers plugged in, etc..), but nothing seems to help this. May just use a noise gate and carry on. Thanks again!


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I had considered trying another house before returning the amp, but have a new one on the way so I can report back then. I don't think the hum was present with the pickup volume turned down, but can't say for certain. I should have tried another power cable prior, but the manufacturer just suggested a swap before troubleshooting too much.

Hopefully the issue is just gone with the new amp, otherwise I would suspect the house as the culprit, since the issue happens on two guitars (one really old one, and one brand new Gibson LP Standard), and 3 different cables. 

I do have a few non standard things running in the home that I can try turning off in case of interference, so thanks for that suggestion as well.. I hadn't considered interference prior.

Thanks again!

When I touch the strings or tuning knob, the hum dampens a bit (maybe 75%) but is still there. If I adjust the pickup volumes, same thing. I ordered a new amp (same one) and hoping the issue goes away. Otherwise I'm clueless l, but ordered a circuit tester to check for any grounding issues in my outlets to rule that out.


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Thanks for the reply. This is a brand new amp, so will likely return it before cracking it open. Don't want to be blamed for damaging it or voiding the warranty if I open it up. I wish I found this forum before giving away my 25 year old fender amp that wasn't working after plugging it in for the first time in almost as long. Thanks again!

Not sure it is any note in particular. Ignoring the last comment, but here's a video of the issue as well.

https://youtube.com/shorts/iqXa2sbDFOY?feature=share

Quote from: Loudthud on February 19, 2023, 12:26:26 AMIs the amp being plugged into a working, properly grounded outlet ? Try a different outlet. If that doesn't work, take it back to where you purchased it and see if it works there.

Yes I've also tried other outlets throughout the house and have the same issue. I'm going to take it to the shop where I bought my new guitar and see that everything works fine on one of their amps to rule out the guitar, and will probably take my amp with me. I requested a return on Amazon where I bought it but want to make sure it's not my guitars or outlets first. Thanks!

I just started playing again after about a 20 year break. I bought a new Orange 35RT amp and plugged my old epiphone SG into it, and the amp makes a very loud buzzing/humming sound when I turn up the gain past 20%. I tried new cables as well without any change. It stops if I put my finger on the string or another metal part of the guitar. Thinking it was the old guitar, I went out and bought a new one, and the exact same thing happens.

Unfortunately I don't have any other amp to test on at home, but seems like the issue is with the amp. I'm thinking of returning it and exchanging for another one, but wondering if this has happened to someone else before. Thanks!