Low Pass Filter sub preamp module test run 

Hello. I need some help from you! I have the exact same card! The card has a design flaw in my opinion. Across L and R input there is 20k resistance and there are no input capacitors! The signal should have been mono wired at the output of the op amp ic. and not on input! 20k resistor over L and R can lead to nearer mono sound! If you take output from a preamplifier and run it into both an amplifier and a bass amplifier then 20k resistance over L and R is not good. There is also no capacitor on the input! What is your professional opinion on this! Be a little technical!

Thank you for this great vid man :)

is their a good place online to buy those AC transformers? Ive tried googling them but not a large selection from any site I'd trust. I have a few, but most are way over 24v/24v , mostly salvaged from older electronics. also thanks for the close up of the board. those look like nice higher end components.

I' m just waiting for mine to arrive.

Why is mine so quiet, I have my amp wierd to the pcb and the sub wiers to the output on the pcb, does the output of the pcb need to hooked into another amp?

Any alternatives how do i connect it to a power supply? I only have a male plug here

is this work with 400watt subwoofer specker?

Equiped with the obligatory bright blue led, I see. They thought of everything.

Hi can I use a headshet 3.5mm jack instead for the input and a 3.5mm jack for output?

If i have a subwoofer with his own amplifier inside. Do i have to use a pre amplifier ?? My main amplifier has two channels , no subwoofer exit

Where i can get that item my friend. ?

Thanks for your published video project. Appreciated. //^0^\\

4 videos in 1 day, watch out your trigger the but-hurt ppl....lol

Sir PDF