MP3Car.com - View Single Post - Hardware Review: Audiotrak Prodigy 7.1 HiFi

NapalmV5 · 04-10-2008, 08:30 PM

Quote: Originally Posted by durwood

What type of load are you driving? Headphones or is this going into an amp? If it's driving headphones I might understand this possible rise in output since it is a harder load to drive vs an amp that has a typical 10Kohm input impedance. The PSU voltage does not change so really you are still capped by the PSU rail voltages going to the opamps in the buffer circuit.

RE picking opamps:

http://www.dself.dsl.pipex.com/ampins/webbop/opamp.htm

if headphone i wouldve stated

no amp/receiver/etc.. just wires between the sound card and 7x powered subwoofers - 1 front left/1 center/1 front right/1 rear left/1 rear right/2 main

believe it or not my modded MX300 beats the crap outta stock prodigy

2x 2200uf paralleled power filter

04-10-2008, 08:30 PM	#79
NapalmV5 Newbie Join Date: Mar 2008 Posts: 9 My Photos: ()	Quote: Originally Posted by durwood What type of load are you driving? Headphones or is this going into an amp? If it's driving headphones I might understand this possible rise in output since it is a harder load to drive vs an amp that has a typical 10Kohm input impedance. The PSU voltage does not change so really you are still capped by the PSU rail voltages going to the opamps in the buffer circuit. RE picking opamps: http://www.dself.dsl.pipex.com/ampins/webbop/opamp.htm if headphone i wouldve stated no amp/receiver/etc.. just wires between the sound card and 7x powered subwoofers - 1 front left/1 center/1 front right/1 rear left/1 rear right/2 main believe it or not my modded MX300 beats the crap outta stock prodigy 2x 2200uf paralleled power filter Last edited by NapalmV5 : 04-10-2008 at 08:33 PM.