Tube Amp Resonating Problem

Hi folks!

After a lot of research, I decided to buy my first tube amp a few weeks back - and bought a Laney Lionheart L5T-112 5W.

It's a sweet combo - nice clean and high gain sounds, good build quality, celestion speaker etc. It's built to max out at 5W too, so I'm getting lots of great tone without my neighbours hating me

My problem is that I'm finding resonance problems with the box when I strike certain notes. Some of the high notes cause a high pitched 'zingy' buzz, and I'm also getting some buzzing with low notes. I tried tightening the screws holding the thing together - but it hasn't helped much.

This isn't an electrical issue - I'm not hearing mains hum or anything like that.

So my questions are:

- Does resonance / buzzing go with the territory for tube combos?
- Any top tips to cure this? The next step I'm considering is taking the back off and checking whether all the components/tubes are correctly seated.
- Should I just take it back to the shop and have them take a look?

Thanks!

Hey Dudes!

Hey dudes - this is a great site, it's good to be here.

About me... my name is Andy, I'm 36 and live in London, UK. I do IT management / programming as a job and I've never played guitar before (well, up to around 3 weeks ago!)

Aspirations: Just to be able to hack out some tunes!
Gear: I picked up a Mexican Strat and a Roland micro-cube.

Influences:
I got into metal back when I was 13 - went to see Dio, Yngwie, Queen etc. live back then. I definitely like a crunchy sound - I'm more into the feel of the music than high speed shredding. Favourite bands are
Rush
NIN
Led Zep
Marillion
Riverside
A Perfect Circle / Tool
Mansun
Electronic / Smiths
Metallica
Thin Lizzy

Favourite guitarists:
Alex Lifeson
Jimmy Page
J J Cale
Ali Farka Toure
Prince

Why am I here? Well I finally picked up a guitar a few weeks back after seeing NIN live in their current tour. Aaron North was just amazing on guitar - I had to finally get myself one!!

I've started with a few books, practicing cords and trying to get smoothly into Dmaj (my fingers still aren't convinced - just practice I guess). I've done the power cord lesson here which was great, I'm practicing the pentatonic scale and practicing with a metronome.

This is a great site. Kris cracks me up. Look forward to talking with you guys.