I need to find a pc amp

[Distortion]

I've been doing some searching for audio equipment. So i desided to build some speakers for my PC.

Here they are,

8ohm 5inch 20w

I have two of those and one of these.
4ohm 8inch 40w

Now I don't have the name of the brand for any of them so I can only give that much information. Im also not very sure how i would wire the big one if i used it a subwoofer or a center speaker. Anyway I need to find a stereo (2-channel) amp that works with them that's under 80 bucks or so(Doesn't actually have to be under but if it can).

Thanks guys

[chillinsince96]

http://www.amazon.com/AudioSource-AMP-100-Stereo-Power-Amplifier/dp/B00026BQJ6/ref=sr_1_4?ie=UTF8&qid=1432612312&sr=8-4&keywords=stereo+integrated+amplifier

 

http://www.amazon.com/Pyle-PAMP1000-Channel-Stereo-Amplifier/dp/B002UL0XH2/ref=sr_1_12?ie=UTF8&qid=1432612281&sr=8-12&keywords=stereo+amp

 

http://www.amazon.com/Lepai-LP-2020A-Tripath-Class-T-Amplifier/dp/B0049P6OTI/ref=sr_1_1?ie=UTF8&qid=1432612281&sr=8-1&keywords=stereo+amp

[Lutkeveld]

Measure parameters and simulate your box. Otherwise the sound will suck and your money will be thrown at a piece of shit sub.

A good amp can't compensate a driver/box mismatch.

[KaminKevCrew]

Measure parameters and simulate your box. Otherwise the sound will suck and your money will be thrown at a piece of shit sub.

A good amp can't compensate a driver/box mismatch.

Agreed. There is some pretty serious research that goes into the enclosures for speakers. This is a very ambitious project if you really want to get the very best sound out of these speakers. 

If you're going to be using a 2 channel amp, you will need a crossover of some sort, to ensure that the sub is only trying to reproduce frequencies it is capable of without distortion (read: you don't want a sub trying to produce a 1000hz tone)

The main difficulty here will definitely be the enclosure. I think a few companies use loose wool in their enclosures. Maybe some acoustic foam in there? Also, are you planning on porting your enclosures? 

[Lutkeveld]

Agreed. There is some pretty serious research that goes into the enclosures for speakers. This is a very ambitious project if you really want to get the very best sound out of these speakers. 

If you're going to be using a 2 channel amp, you will need a crossover of some sort, to ensure that the sub is only trying to reproduce frequencies it is capable of without distortion (read: you don't want a sub trying to produce a 1000hz tone)

The main difficulty here will definitely be the enclosure. I think a few companies use loose wool in their enclosures. Maybe some acoustic foam in there? Also, are you planning on porting your enclosures? 

 

Looks like a commercial woofer, so probably meant for ported (low Q, medium Fs, medium to small Vas)

Sealing them will render them useless as a sub. Measuring the parameters and simulating a proper box takes some time to learn but can be a great learning experience.

[KaminKevCrew]

Looks like a commercial woofer, so probably meant for ported (low Q, medium Fs, medium to small Vas)

Sealing them will render them useless as a sub. Measuring the parameters and simulating a proper box takes some time to learn but can be a great learning experience.

Out of curiosity, what would I use to simulate a box? Is there a program the does it, or do you actually need to mock up boxes?

[Lutkeveld]

@ WinISD usually. If you want to get creative; AJ, Akabak, Hornresp, Boxsim or one of those crappy online tools.

[KaminKevCrew]

@ WinISD usually. If you want to get creative; AJ, Akabak, Hornresp, Boxsim or one of those crappy online tools.

Just downloaded and installed, I guess I'll mess around a bit Are there any "professional" solutions, like paid stuff, or is WinISD generally the best?

[Lutkeveld]

@

You can pay for WinISD if you want ;p

 

For simulating the low end (subwoofers): WinISD

For complete speaker design; PCD or Boxsim

For (tapped) horn systems: HornResp

For advanced acoustic elements simulation; Akabak

For nothing at all, something you should never use: online tools

[Distortion]

Measure parameters and simulate your box. Otherwise the sound will suck and your money will be thrown at a piece of shit sub.

A good amp can't compensate a driver/box mismatch.

The problem is that i know as much as you can see on the photo  i cant really measure the parameters unless i some how find it online like ive been tring to find

 

Looks like a commercial woofer, so probably meant for ported (low Q, medium Fs, medium to small Vas)

Sealing them will render them useless as a sub. Measuring the parameters and simulating a proper box takes some time to learn but can be a great learning experience.

 

It actually looks more like a car speaker than a woofer. thats why i was thinking it would work out better as a center speaker.

[Lutkeveld]

For a center speaker you'd have to measure frequency response and design a crossover, which is way more difficult than measuring the parameters to use it as a sub.