Need Help With Getting A Good Sound At Rehearsal Rooms

At home all I need is my Marshall JVM410H on the OD1 Crunch setting with a Super Overdrive and a Noise Suppressor and I have a beautifully smooth distortion sound which doesn’t feed back.

At my rehearsal studio I have the choice between a Katana Head or a Marshall MG100HCFX through a 4x12 (I take my pedalboard but don’t have the means to transport my head) and I cannot for the life of me get a good lead sound without high pitch squealing. This results in me having to set the gain quite low which is okay for rhythm playing but legato becomes non-existent, which is a big issue for me when trying to use Yngwie’s picking system.

Anyone got any tips? Is it just because the gear is pretty cheap? Or am I likely doing something wrong? :face_with_raised_eyebrow:

For reference this is how much gain I use at home:

I don’t think it’s too crazy? But the types of phrases I’m playing in this clip are impossible with my current sound when rehearsing!

At the moment I’m considering selling my Marshall head and buying a Victory Kraken so I have something very light and portable to take with me to practice.

I have a Kraken and it has that level of gain. If you really like your marshall, don’t get rid of it. Have you thought of getting the Kraken V4 preamp? Its a third of the price of the head and you can also use it to add an extra channel to you JVM as well as using it with any other amp you find at rehearsal.

All that being said, it may not stop the squealing. How loud where you playing and how close were you to the cab?

If it was an angled 4x12 and you were close to it, its pretty easy to get a feedback loop. The overdrive will also raise the noise floor I suppose…

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What this means is that you have positive feedback in the studio as your guitar can hear itself, and this unlocks a vicious cycle. I suspect you might be able to use notch filters to try to kill some of those frequencies, but I have never tried that in practice. Or play in a different room than the amp (as YJM does in his home studio).

I suspect this is a really common problem.

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I’m so jealous, wish I bought the Kraken instead, Phillip McKnight said in his review it’s very similar to the JVM so it sounds perfect for me.

Yep it was an angled 4x12. I’ve experimented with standing in different places but it doesn’t seem to make a difference. :neutral_face:

I would call that a fairly high gain sound, for what it’s worth.

Just to feel out the problem a little, your volume here is pretty low. Can you play at the same volume in the rehearsal space without feedback? If you turn your amp up to rehearsal volume at home, does it still stay free of feedback?

If the answer to both questions is, well, no to the first, and yes to the second, that implies something may be wrong with the head. If there is any way to somehow get your head to the rehearsal space for one night just to really nail down that Marshall valvestate as the issue, that might be helpful here… but that seems kind of unlikely to me. I’m wondering if it’s more just a product of the huge change in volume, coupled with proximity of standing right next to the amp in the rehearsal space (which I’m guessing is pretty crowded with a full band in it).

Also, are you getting “normal” feedback, or squealing microphonic feedback? And, can you silence the feedback just by rolling your volume off between songs? This might be as simple as managing it at the guitar.

Providing that you don’t need a clean channel!

I find that channel 1 - the JVM style one doesn’t have a large amount of gain, a boost might be required. Where as channel 2 (based on 5150 type tone) has way enough gain.