Connecting Stereo Amplifier to USB Interface

[teilvinci]

Guys, need some advice about routing amplifier signal to an USB interface.
 
I have this hardware:
- Denon DR-M1 Tapedeck
- Pionner Vinyl Player
(both the above are connected to the 
- Technics SU-Z45 Amplifier
-Scarlett Solo Interace
JBL 305 active monitors
 
Now, the big question lies between the Technics amplifier and the small Scarlett Solo.
I want to route the signal from the amplifier to my USB Scarlett Solo and then to my Active monitors. I noticed my Technics amplifier doesn't have a line out, only those red-black wire outs for passive speakers (sorry for the lack of correct terms) .
I'm quite new to this level of audio stuff so I want to know if it's there something wrong in this.
 
I've read that it's NOT ok to send HiFi amplifier signal to interfaces or directly to active monitors, like I want to do. Maybe should I just choose a different amplifier with line out and connect direcly to the interface?
 
I've made a quick sketch for you guys to better understand the way I have this.
 
https://s17.postimg.org/nc0geyf9r/Untitled_1.jpg
 
Help me not to blow my house Thanks!

 

[PurpleAngel]

Why even have the Technics SU-Z45 anywhere in the audio setup?

 

[Mr Rick]

  Why even have the Technics SU-Z45 anywhere in the audio setup?

I'm assuming he wants to use his tape deck and turntable.

 

[teilvinci]

I've had it for a long time, I didn't get it specifically for this case...  But can the interface take care of turntable amplification? I was thinking about using the Technics for it.

 

[PurpleAngel]

  I've had it for a long time, I didn't get it specifically for this case...  But can the interface take care of turntable amplification? I was thinking about using the Technics for it.

 
So your wanting to use the Technic as a Pre-amp?
 
I believe the Schiit Fulla 2 or Schiit SYS could do that job for you.

 

[teilvinci]

   
So your wanting to use the Technic as a Pre-amp?
 
I believe the Schiit Fulla 2 or Schiit SYS could do that job for you.

Great, thanks a lot.