/diy/ - Do It Yourself

>>172440
So make a small box as bigas the speakers that would screwing to the frame?

>>172414
Anyone m ow how I would go about mounting this inside the backpack? I was thinking of using a cardboard backing inside the pack.
There are screw holes at the corners and they are bent inwards.

I just finished the other hole

I made this 2years ago, it's a Giant Christmas Stocking made into a backpack.

Cutting the other hole and hand sewing the edges.

Hey guys, I'm working on my DIY Stereo Backpack

Sweet, thanks :D
The 2nd link helped me :D

Here ya go OP.

http://kipkay.com/videos/spy-devices/how-to-see-in-the-dark/

How many AA batteries does it take to make 12v?

-sigh-
OP Here :[
I was looking around on youtube for a DIY amp, and I found this. So my question is...
Can I use something like this for my speakers? How do I make it for 2 speakers and 1 audio jack?

Is it possible for me to get a 100 watt amp and lower them so it would provide 25 watts for 2 speakers?

Where can I go to buy an Amp that has at least 25 watts, it does have to be exact, because I don't have a card to buy online items :/
This is the only problem I have obtaining an amp and where.

Whoa!! If there is a parts list, and this build is done, I'd like to no about it. This would be great for my DIY Backpack Stereo, @ >>156879

>>160720
So.... Try an amp with very low wattage (25w) and work my way up to what I see fit?

Ok so from what I've read so far.... I should try out a 100 watt amp, and if this doesn't work, I can always return the amp and get a higher or lower amp depending on the loudness of the speakers, right?

I'll post a video of me making my dang stereo back pack cause I feel like it's going to be worth it. and then everyone here can troll me in the comments for making a "douche bag" or whatever >>159480

O.O
I found the stereo system the speakers originally came from.
http://dc400.4shared.com/doc/c_8aXrEA/preview.html

I know I'm just throwing out links, but I think the numbers at the bottom might help, but idk

It's the SX-R290

If this doesn't help, I still thank you for trying to help :/

>>160667
That's the problem, I don't know how many watts or voltages it has or can use, if you looked at my previous post, then you'd see me asking multiple times.
If I need to provide anymore information, let me know of what, and I'll see what I can do

I just don't know what amp will provide enough power to 2 eight ohm speakers.

>>160648
No that's not what I want. I hae the speakers already, I just need the right amp. I DO NOT have an amp. and I'm going to be mounting the speakers onto a back pack. :/

>>160633
If I sound like I'm trolling I am sorry for the misunderstanding. It's just that I don't know what kind of amp I need to use. I have two 8 ohm speakers and all I just need to know is the volt and/or watts for the proper amp :/
And once again everyone, thank you for you input, this project is almost done, all I need is:
1)Proper amp
2)Proper power supply for the amp
3)Old Back Pack

That would be all.... For now. :]

Guys, I'm still here. I don't know how many watts or volts I need to use for my two 8 ohms speakers >.>
A quick comment would help out anytime

P = V^2 / R = 10^2 / 8 = 12.5 watts

Does this mean that I need 25 watts for 2 of my 8ohm speakers? I'm lost >.>

There is what I was looking at:
http://www.rayfes.com/caraudio/ohms.php

So based on this
http://www.marktaw.com/recording/Electronics/OhmsAmpsandSpeakers.html

And I have 2 speakers that have 8 ohms making a total of 16 ohms right? So I would have to get a 200 Watt amp? I'm not really sure about this. :[

How do I know how much Watts the speakers need? Here's what the back of the casing to the speaker looks like.
I see an 8 Ohms, what does that mean?

Wait!!

Quick Question:
Does it matter for the speaker, how much voltage it takes, or does the amp takes care of that? Cause I don't want to blow it out.