Electrical or electronic equipment used to make music louder, characteristically used with electric guitars, but also with other instruments

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15
votes
3answers
9k views

Why is an amplifier's effects loop useful?

When should you plug gear into your amplifier's effects loop and not into the standard input?
10
votes
1answer
422 views

Balanced triodes. Gimmick, or worth the money?

When purchasing tubes from some reputable dealers, I have noticed that you are given the option for balanced triodes--sometimes at a much higher price. How does a tube with balanced a triode effect ...
18
votes
4answers
1k views

When should I be concerned about calibrating the bias of vacuum tubes in an amplifier?

I think it would be useful to discuss the concept of bias as it pertains to guitar amplifiers. I have read some articles saying that you should always rebias your amplifier when you change the power ...
5
votes
3answers
854 views

Why does my guitar sound more natural when plugged directly into a tube amp vs through a pedal board?

Why does my guitar sound better when plugged straight in to my amplifier as opposed to running it through a pedalboard without a true bypass strip?
10
votes
2answers
2k views

What do the different tubes in an amplifier do?

Preamp vs Phase Inverter vs Reverb vs Power vs Rectifier. Many people get really, really confused when they try to understand anything about tubes. I spent a very long time myself trying to ...
21
votes
5answers
19k views

How do I know when it's time to change a tube on my amplifier?

I think this would be a wonderfully instructive question to people who are new to tube amplifiers. In short, how do I know that it's time to change a tube, and what's a good strategy for figuring out ...
12
votes
1answer
3k views

What changes in the amp when I adjust its presence?

The tone controls on a guitar amp are pretty obvious, but what does the presence knob affect? It's a subtle effect but can sure make or break a sound. It doesn't seem to be treble or midrange boost, ...
13
votes
3answers
5k views

Amp picking up radio stations

When I plug my combo practice amp into a normal wall outlet I pick up a local public radio station, just loud enough to be annoying. The only way I've found to reduce it is to plug it into a UPS or ...
13
votes
7answers
4k views

How do you mic a guitar amp?

How do you go about mic'ing a guitar amp for live performance? Would you do anything different if you were mic'ing the amp for studio recording? Is there anything specific I should look for in a ...
22
votes
6answers
3k views

Why do tube-based guitar amplifiers sound so good?

Is it just a cultural thing ("they've always sounded that way") or is there some basis in music theory for this?