Is this noise indicative that the tube needs to be swapped?
Besides this noise, the drive channels are very weak as well
Besides this noise, the drive channels are very weak as well
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- Feb 12, 2006
- 52,447
- 176,650
- 14,248
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
It's a 65w guitar combo, the noise i'm refering to is a hiss that happens when a note is played. It has only one tube
- Feb 12, 2006
- 52,447
- 176,650
- 14,248
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
I didn't say the model because i thought it wasn't an international brand, but it's the Laney lv200
Sounds like radio interference to me, can you remove all pedals and do direct into the amp...and plug in some other room?
And if AgedHorse says anything different, I defer to him and declare that I have no idea what I'm talking about. That said, I sometimes get that noise with lots of electronics around...computer monitors etc.
And if AgedHorse says anything different, I defer to him and declare that I have no idea what I'm talking about. That said, I sometimes get that noise with lots of electronics around...computer monitors etc.
- Feb 12, 2006
- 52,447
- 176,650
- 14,248
- Disclosures
- Development Engineer-Mesa Boogie, Development Engineer-Genzler (pedals), Product Support-Genz Benz
Does it make the noise with nothing plugged into it (other than power)?
Are you operating at 115V or 230V (where are you located?)
Does it make the noise with just the guitar and no pedals?
Are you operating at 115V or 230V (where are you located?)
Does it make the noise with just the guitar and no pedals?
The hiss is absent unless i play a note, but it does hum a bit even when unplugged. My country uses 115v energy. I'm using it with no pedal
Yes, i turned it off and it is still the same, the only electronic device around is an internet router
Its hard to tell but it doesn't sound like a tube. It almost sounds like a ripped cone or distorted voice coil in the speaker. Does it do it with a guitar? I would expect a bad tube to be distorted, or even producing odd harmonics. This doesn't sound like that.
I don't have a guitar to test that. If it is the coil, is it repairable? Or is it better to replace the speaker?
You can get a speaker re-coned (which would have to happen if it was the coil or the cone). It is usually a bit cheaper than replacing but you have to find someone to do it (or try it yourself).
There's no reason you can't play a bass through a guitar amp but you have to watch volume. Bass frequencies make a speaker need to travel further and guitar amp speakers are not designed to move that much. How old is the amp? How much use has it gotten? If it's been played a ton of change the tube in the name of regular maintenance (although, a single tube indicates a preamp tube which don't wear the way output tubes do).
After cutting the low end and playing a note in the guitar range, it's still there, just not as loud. It looks like at least 10 years old, it was used a lot by my grandfather for live bands. He wasn't able to troubleshoot it
Sound like it could be the speaker. The extra bass frequencies make it more pronounced. The way to test is to disconnect that speaker and run the wires to another cabinet you know to work. If the working cab doesn't have the issue, you know it's the speaker in the laney combo.
I tested putting the Fx send to a bass amp and it sounded ok, thanks a lot for the help
Just in case, turn that off. Last i knew, mine emitted RF. Might be the problem, after that shielding.