DIY 5.1 Home Theater using Sony Speakers

Hi all,

Iam sure someone would have posted these questions already, but I need help with choosing the right amplifiers for my exact speakers. Iam not from electonics background so most of DIYs i see are helpful until I start looking at the Class D apms which confuses me.

So any help would be appreciated.

The system came with a player and amp all built into one case. I left it for a few months without usage and ants turned it into their house. There are no spares available since its very old, but the speakers are very good. So wanted to try and use them with a few inputs like, Optical, Headphone, USB, HDMI, etc. At least the ones that are possible.

My hometheatre is Sony DAV-DZ370 5.1 1000W RMS. Details below,
Front L & R, Rear L & R and Center Speaker Details. All 5 are of same configuration.
Wattage: 143 W
Rated Impedance: 3 Ohm
Type: 65mm Cone
Full Range Bass Reflex, Magnetically Shielded

Subwoofer Details
Wattage: 285 W
Rated Impedance: 1.5 Ohm
Type: 165mm Cone
Subwoofer Bass Reflex

Original Amplifier details
Stereo Mode: 108w + 108w @ 3 Ohms, 1 kHz, 1% THD
Surround Mode: RMS Output Power FL/FR/C/SL/SR 143w per channel @ 3 Ohms, 1 kHz, 10% THD
Subwoofer: 285w @ 1.5 Ohms, 80 Hz, 10% THD

I was thinking of a few TPA3116 but the Ohm rating threw me off. Any suggestions on how to reuse the speakers alone please. I don't want to waste them since they are in excellent condition.

Link to hometheatre manual: Access Denied
 
I did search around but did not find a suitable one. Hence the option of DIY. And I use Optical primarily and HDMI occasionally, so only a few inputs I use all the time. Plus I want everything in a glass or plexiglass case to show off the components, if that is possible.

I did look at TPA3116 with a few variations, which ones will suite my speakers?
Iam guessing the sub needs a separate apm ?
 
If I was in your place, i'd buy a cheap old AV Receiver which could be had for very little money.

Buy one rated for 4 ohms. Shouldn't be an issue driving all your speakers.

I totally agree with this, I have also bought Denon AVR S510BT from someone I found on reddit. It saved me like $400 with good condition. Since I don't care about 4k this was good for me I suggest to buy AVR used only always.