Reddit reviews Dayton Audio SA25 25W Subwoofer Plate Amplifier

I'll echo everyone else - you should buy a new (real) receiver.

However, in the meantime, you need to do the following anyways:

1. https://smile.amazon.com/Dayton-Audio-SA25-Subwoofer-Amplifier/dp/B0002YUMY8/ This is called a panel amp, and will allow you to send the FR and FL outputs (or you can do some wire splicing and use the "sub" outout) from your "reciever" to the panel amp, and then you can send the "to speakers" out to the bass shakers. This is the shitty way to do this, but when you do upgrade the receiver you can start using the RCA "low level input" from the . There are other types of amps (including car audio amps) that will work, but this has normal 120v input so you can just plug it into the wall with no extra work. It also has a crossover that you should set to the lowest 60Hz setting so the only shake for the deepest sounds.
   
2. You then wire the shakers in series. http://www.avsforum.com/forum/113-subwoofers-bass-transducers/330436-shakers-simple-cheap-hookup-visual-guide.html

Totally worth doing this mod, it makes everything more immersive. 25watts is PLENTY for a computer chair, I know that sounds low but trust me its FINE. If anything I want to add more smaller ones for a stereo vibrating sound.

As someone who has done this multiple times (not building a transducer but installed them) I would recommend getting a higher quality amp, specificly a plate amp. I know they cost a little more but they add so much more quality.

Amp for transducer: $43
Cheap transducer 25 watts: $25 (take apart and use the transducer in the backpack)
Nicer Transducer 50watts: $52
DONT BUY THIS AMP - the sound is awful and is no where near the stated 68watts, also the low pass things dont work at all on this.

He's the parts - copied from another post:

http://www.amazon.com/gp/product/B00N41HNZM?psc=1&redirect=true&ref_=oh_aui_detailpage_o05_s00 - Drill Bit

http://www.amazon.com/gp/product/B000067RC4?psc=1&redirect=true&ref_=oh_aui_detailpage_o05_s00 - Splitter

http://www.amazon.com/gp/product/B004YEBK66?psc=1&redirect=true&ref_=oh_aui_detailpage_o05_s00 - Connector to Amp

http://www.amazon.com/gp/product/B0002YUMY8?psc=1&redirect=true&ref_=oh_aui_detailpage_o06_s00 0 - Amp

http://www.amazon.com/gp/product/B0045W10VW?psc=1&redirect=true&ref_=oh_aui_detailpage_o06_s00 - Bass Shakers

1. Drill the holes where you would like the transducers with the provided drill bit.
   
2. Mount the transducers with screws.
   
3. You plug the splitter into the pc, run a cable to your speakers(or headphones), another cable to the amp.
   
4. Run another cable from the amp output to the transducers (you'll have to split it).
   
   It's actually really easy. Takes maybe 30 minutes. It gets a little more complicated if you want to use usb headphones. Headphone to RCA cables help if you're hooking up to a stereo.
   
   BTW, my setup has 2 transducers; I think that amp will run at least one more.
   

http://www.amazon.com/gp/product/B0002YUMY8/ref=oh_aui_detailpage_o08_s00?ie=UTF8&psc=1

all you need there are cheaper ones but this one is better and worth the 20 extra bucks