pre amp question, need your input

cidme · 28th June 2007, 10:17 PM

I am a noob at electronics and I am trying to come up with a design to add some decent sounding tunes to my motorcycle. I have no space for a typical setup so I am going to construct a box to hold two 5.25 inch speakers and I was going to use an amp6 kit from 41hz. com

My question is would adding a small 9v preamp boost the signal coming from mp3 player before it hits the amp? If so will this allow me to turn it up louder without it distorting as much? Or am I on totaly the wrong path?

Space is an issue here so Im tryuing to keep it all small

Thanks for any help you can give.
cid

jnb · 29th June 2007, 12:11 AM

It doesn't work that way. A power amp has its limit and that's that. What you need is a power amp that has enough gain for you to be able to run it straight from your mp3 player and be able to turn it up enough that it will distort. These are easy to find.

AndrewT · 2nd July 2007, 08:20 AM

Hi,
find out the output voltage level of your MP3 player.
Build a power amp with sufficient gain, either internally or with an add on pre-amp to allow the power amps to reach maximum output when required.

As a matter of interest, having seen reference to this topic on another thread, when do you listen? on the move or stationary?

jnb · 2nd July 2007, 09:37 AM

Mmmmm, electrostatic phones inside your helmet

Seriously though, ear buds will fit.

cidme · 2nd July 2007, 07:40 PM

Im building a small box to hold two 5.25 inch speakers and Im going to drive them with an amp6. Its going to mount to my windshield. I wear a half helmet so no helmet speakers will work, and I have tried the buds and dont like the feel.

How do I test the output level of my mp3 player??

28th June 2007, 10:17 PM	#1
cidme diyAudio Member Join Date: Jun 2007	pre amp question, need your input I am a noob at electronics and I am trying to come up with a design to add some decent sounding tunes to my motorcycle. I have no space for a typical setup so I am going to construct a box to hold two 5.25 inch speakers and I was going to use an amp6 kit from 41hz. com My question is would adding a small 9v preamp boost the signal coming from mp3 player before it hits the amp? If so will this allow me to turn it up louder without it distorting as much? Or am I on totaly the wrong path? Space is an issue here so Im tryuing to keep it all small Thanks for any help you can give. cid

2nd July 2007, 08:20 AM	#3
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, find out the output voltage level of your MP3 player. Build a power amp with sufficient gain, either internally or with an add on pre-amp to allow the power amps to reach maximum output when required. As a matter of interest, having seen reference to this topic on another thread, when do you listen? on the move or stationary? __________________ regards Andrew T.

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29th June 2007, 12:11 AM	#2
jnb diyAudio Member Join Date: Dec 2006	It doesn't work that way. A power amp has its limit and that's that. What you need is a power amp that has enough gain for you to be able to run it straight from your mp3 player and be able to turn it up enough that it will distort. These are easy to find.

2nd July 2007, 09:37 AM	#4
jnb diyAudio Member Join Date: Dec 2006	Mmmmm, electrostatic phones inside your helmet Seriously though, ear buds will fit.

2nd July 2007, 07:40 PM	#5
cidme diyAudio Member Join Date: Jun 2007	Im building a small box to hold two 5.25 inch speakers and Im going to drive them with an amp6. Its going to mount to my windshield. I wear a half helmet so no helmet speakers will work, and I have tried the buds and dont like the feel. How do I test the output level of my mp3 player??

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