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Extension Jack Mod for Ac4

Started 2 years ago by jacksav

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jacksav

Member

 

Does anyone know of a mod for the AC4TV that allows you to run the internal speaker along with the internal one? I know BillM offers this for the Blues Jr. I have.


Posted 2 years ago

 

standish

Member

 

just a simple rewiring of the existing jack so the internal speaker doesn't get disconnected
very simple, have a look and you'll see


Posted 1 year ago

 

fluffy

Member

 

be careful doing that. adding a speaker will alter the ohms and you don't want to blow your amp by pushing too much of a load.


Posted 11 months ago

 

standish

Member

 

yes a good point to remember fluffy
i've stopped using the attenuator and that solves the ohm issues,
the output transformer of the Ac4tv is large enough to handle a 8ohm speaker, if you don't use the attenuator, if you want to be truly safe then you'll need to change a resistor/cap on the board then you can again safely use the attenuator,

i've been using a 8ohm speaker for a long time now without any issues at all, but like my advice i do not use the attenuator at all ! !


Posted 11 months ago

 

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