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if you got a ht receiver a dvd player and all the speakers full dd 5.1 ch surround why would you want a pre-ampshould i add one.? do i need one.? is my set up wrong.? does my receiver need 5.1 channel inputs.? can i still add one even if my system is optically connected.?
please help.?
Eric J is correct, your reciever has a pre-amp built in along with a tuner and an amplifier. The pre-amps function is to take the very small voltages from the tuner, phono cartridge, or whatnot and amplify them a sufficient amount so that the power amp has enough juice to work with. A good, clean pre-amp is important because the power amp will amplify everything it receives from the pre-amp, including noise and distortion.
thanks people!!
Here is the best way to break this down. A audio video receiver is made of four basic parts, components if you will, a Pre-amplifier, a Tuner, a digital decoder and an Amplifier. The Pre-amplifier is what controls volume, input selection and tone controls, the tuner is for am/fm, the decoder converts digital signals to analog signals and the Amplifier is what amplifies the signal to the speaker.There is many different ways you can have all of these components and in your case they are all in one box, a digital AV receiver. You do not need a pre-amp as your receiver has those capabilities built in. Their are many advantages to seperating the pre-amp, mostly noise and power supply issues. However good digital pre-amps are not cheap, they run anywhere from about $1000 upto well over $8000 and then you still need a good Amplifier(s).
I hope this answers your questions.
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