Had this versatile amp since new, home studio use only.

No static or fuzziness from controls, a very nice amplifier.

The Laney GC50A is a guitar amplifier for both acoustic and electric instruments. It's a unique amp as it actually has two separate channels for acoustic and electric guitar. The amp has a single 12" speaker and 50 watts of power. 

It has two 1/4" inputs for each of the two channels on the front panel, while in the back it has further connections for foot switches, direct input, a headphone jack, and send and return connections for a loop. The amp is a solid state amplifier.

UTILIZATION

It's not too hard to manipulate the Laney GC50A, although it does have a good amount of controls. 

The acoustic channel gives you knobs for gain, bass, middle, and treble, and a feedback filter that has parameters for frequency and depth, while there is also a separate control for reverb. 

The electric channel has parameters for gain, drive, level, bass, middle, treble, and reverb. 

Both are pretty easy to use but still offer up a nice array of controls. 

Lastly, there is a button to engage the high frequency driver, and buttons for turning on the reverb and the channels. 

The included manual should be able to answer any and all questions you might have about this amp.