Author Topic: Newbie Q - Head unit Amp then gets 'Amped' again by seperate amp???  (Read 153 times)

Offline Kola

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Hiya,

Sorry if im uneducated in this area.  So, I want to do the audio of my Mk3 golf up.  (Its currently as standard / factory apart from head unit I just installed)

So, I have my new pioneer head unit, it comes with standard amps built in.  I dunno say 4 x 25 RMS

So I know I need a separate amp to get the best sound. So I get a separate quad amp with 4 x 100 RMS.

How can I work out what speakers to get.   If I get speakers that can handle 100w RMS surely my amp is amplifying and already amplified signal.  IE head unit amplifies it to 25 watts then to the separate Amp to give that 25 watts another 100 watts what surely is gonna be way more than just 100w? 

Offline jv

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No, because you are not sending the head unit power output AND the additional amplifier output to the same speakers.
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Offline dragonfly

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The minimum speaker wattage would be at least the maximum amp wattage i.e you wouldn't have a 25 watt speaker running off a 100 watt per channel amp because as soon as you crank up the sound you will distort the sound.

Offline brettblade

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The minimum speaker wattage would be at least the maximum amp wattage i.e you wouldn't have a 25 watt speaker running off a 100 watt per channel amp because as soon as you crank up the sound you will distort the sound.

Or blow the speaker, neither of which being a good result!

To the OP - your Pioneer HU will likely have RCA pre-outs, these are the red and white plugs on the back of the head unit and you will have the same as an input for your amp.
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