75w speaker and a 5w amp
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Hey there, I got a "10 G10C for my epiphone valve special..
I haven't yet installed it, but I am starting to worry that using a 75w speaker with a 5w amp will do damage to the amp.
Especially if I want to get any speaker break up out of it. which I will. As I play blues/alt country..
Should have I went with the veteran or the "10 green beret to achieve those tones?
Will I damage anything by using a speaker with over 10x the capacity of the amp?
Cheers
1st : no , you will not damage the amp if the impedence of the speaker matches the out put of the transformer . some folks use an impedence mismatch to attenuate the speaker volume , a 16 ohm speaker in an 8 ohms circuit cuts the 'output' by 50% with no detremental effcts on the amp . however , a 4 ohm speaker in the same 8 ohm circuit will potentially overheat the transformer(s) leading to circuit failure ; ie: an amp that needs repair .
the amount of break-up you get is determined by the tubes being used .. power tubes : 6v6's give up the goods quicker than el-34's , el-84's , 5881's , 6L6's and virtually any other power tube commonly used if you are going for 'power tube' tone . that being said , 12ax7's provide the most gain in the pre-amp section of the circuit , with a gain factor of 100 . 5751's would be next with a gain factor of 70 (the SRV tube) , 12at7's have a factor of 60 , 12ay7 a factor 45 , 12av7 a factor of 41 and the 12au7 a gain factor of 19 . there is a significant difference between power tube break-up tones and pre-amp break-up tones .
and a side note : speakers with a smooth cone tend to be more aggresive sounding with earlier break-up . ribbed cone speakers tend to sound 'sweeter' / 'smoother' with a much later break-up than the smooth cone .
Yea ... no problem here! a 5-watty amp isn't going to push ANY speaker into breakup anyway!
Sorry if I've taken a while to answer your question. I've been fighting Pneumonia the last couple of weeks!