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Is my power amplifier breaking?

Enabbar Ocap
Enabbar Ocap asked
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Last Modified: 2012-05-09
I bought a HH s130 slave amplifier, very second hand and it was unsure if it was working. So I plugged my guitar in connected up the speakers and it works, well there is sound and it has a really nice tone too. I don't think its a full 100 watts coming out though, it's not as loud as my other 100w amp. I took the covers off and there are two large capacitors in there, 4700uF 50v electrolytics 53mm high and 35mm diameter, both of which have some serious bulges on the tops as if they are just on the point of melting.
Questions:
What are these caps for? I'm assuming that they are in the output stage as they are so big?
If they do blow can I expect 50-100v through my speaker coils and expensive damage to the speakers?
Might them being partially blown be contributing to the nice sound I am getting?
Is a guitar a high enough level input for this amp or is it expecting a line level as it is a slave amp? (There is an 'input' on the front and an 'aux input' at the back)
I will replace the caps but I want to know if its safe (for the speakers) to use it in the meantime.
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