yes, the amp requires 32V to power it, + 12V for some kind of safety thing~

Bart, what do better dynamics do? and how do i double the capacitors? i get 8, instead of 4, and instead of having one where it says to, put two in the circuit? ill scan the diagram and post it here in a bit to clarify this.

since i don't plan to bring down my house, or disturb the neighbors (much more than i already am) with this addition to my home stereo, I'm sure this should be sufficient to just add the kick i want while watching movies and listening to music.

i think ill just try and use this amp without any volume or equalizer in between and see what happens. I've decided also to change the input on the amp that i'm building and keep it as a stereo amplifier, ill just splice the cable from mono to stereo. like this some day if i need a stereo amp i can use it without having to modify the box~

was my b-day yesterday (17th Aug.) 26 now... ehh~ getting old  :P

thanks for the info to bart n blotch. hope to hear again from you two then.
cheers

this is what comes with the amp, doesn't make much sense to me, but posting in case someone has any advice about it.


this is what i understand by doubling the capacitors up in parallel, is that correct bart?

well on second thoughts, that looks like i linked them up in series~ ehh.... I'm confused, lol

thanks,

You're last drawing shows the capacitors in series, this halves the capacity.
If you want to double the capacity, put a second one; plus to plus and negative to negative.
(Like you would put two 4ohm-speakers in parallel to get 2ohm)

Dynamics gives the bass some more reserve so not to draw the voltage down too fast.
See it like a water reserve, giving small drops won't matter much, as you can refill the bucket in time.
Draw a big stream of water out of it, through a one inch/25mm hose, the bucket will run empty or will not get full anymore, you just cant fill it up in time, just like you're transformer can't fill up those caps on time.
So get two buckets, if there is a sudden big draw, two will have more reserve then one, being it a bucket or a capacitor.
I wish my English was a bit better, but that's about the best I can explain.

Specially for bass, reserve is important, that's why they put big cap's in cars; one farad and more.

Hope this helped.
Bart

As promised I made drawings of the 1/2 WO.

Here is the original 24X36 I based it on (made drawings in Windows Paint):


Here is the same drawing cleaned up:


Here is the modifications (red lines):


Same image cleaned up:


Likes like a normal 45Hz horn now. Should make one and find out What do you all think? BTW the finished outside dimensions are 24x24. The mouth opening area remains the same as the original mouth opening area (thus the modified line).

Yup - thats how you need it keep us posted.

ah~~ if only i could afford some of their hardware!   but then again, it wouldn't be half as fun as building your own sub, and amp!

and yea, i still haven't had time to get anything done >.< wanted to work on the sub yesterday, but the worker had to leave, lol.

probably try and get my hands dirty tomorrow.

cheers.

here is my amp!







nice and simple, a volume button in the front left, stereo output to the drivers on the top (didn't have space in the back panel) and the stereo input above the heat sink (i decided to go stereo with the amp so i could eventually use this amp for regular speakers as well), big passive cooling on the outside back, power jack, fuse, switch, and the power placed off to the side to reduce electrical interference with the rest of the hardware.

i just tested it with the two drivers (free standing) and it was able to kick out enough audio to keep up my hopes. however i did not parallel the double coil drivers yet, so i think there might be a little improvement once i do that. i did try and connect both left and right outputs to one driver, and that resulted in a more impressive kick.

I'm already tempted to go out and find some proper capacitors since these don't seem to be up to the task, lol.

well maybe once i actually manage to get the WO built it will sound the way i want it to and leave it at that.

has anyone had experience with a Yamaha Amp that has a Sub out? i tried to set it up so that the sub out was turned on, and hooked that up to the amp that i built which i then hooked up to just some ordinary Sony speakers, i was expecting to hear some bass, but to my dismay... nothing came out... not even a buzz or hum! am i doing something wrong? i set it up through the Yamaha settings so that a sub was present in the system.

I'm afraid that maybe they made it so that only Yamaha Subs will work with this amp, is that possible? if so i guess ill have to just connect the amp i built directly to the source (in my case the DVD player) and build in a equalizer or something into my amp so only the low frequencies are sent to the WO.

unless of course someone has a solution to my SUB out problem on the Yamaha amp, he he...

hopefully ill get the time to complete the rest and have the set up ready for testing. ill try and keep taking pictures of the assembly process.