Subwoofer connection to Luxman R-117?


Just picked up this receiver and it is everything that people have said  although it has a lot of dated options I do not need; tapes and dubbing).
That said, it makes for newfound joyous musical moments for me.  It makes my ADS 780/2 sing that my old Yamaha RX- 800 was not able to fulfill. That said, I do miss all those digital connections. Luckily my little Schiita phono stage. and Audio Engine B1 also have RCA connections too. I have a paradigm PS 10 Sub want to add but unsure of safest method as to respect the R-117. The sub connection terminates with a 3.5 mm male connection. Do I just buy a 3.5 to a 2 RCA female adapter then run rca cables to ???  The adapters are real cheap but I do not want to compromise a signal or create any damage or havoc to my receiver.  Critical guidance is welcomed.   Also is the phono stage on the R-117 superior to Schiita. I was just avoiding pulling everything back out to get behind all the shelves and equipment. 
just_asking

Showing 1 response by elliottbnewcombjr

https://www.lifewire.com/connect-a-subwoofer-to-receiver-or-amp-3135132

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What is the Paradigm Sub's full model #?

I would like to know the sub's options if any. The sub's 3.5mm male: is it mono, or stereo? Is it possible that the sub's 3.5mm is actually part of a cable that has been connected to the sub (thus removable?)

Main speaker's model #?

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Are you

#1. simply adding an independent self-powered sub to your system? amp (in your receiver) still boosts ALL frequencies, and main speakers still reproduce ALL frequencies.

or

#2. are you going out to the sub first, using the sub's crossover, sub's amp takes the low bass; sub sends upper bass, mids, highs back to receiver (via receiver's 'main in'?). This removes the need for the receiver's amp to boost lows and the main speakers to reproduce low bass.
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That Luxman has quite a few options (more than most) to go 'line level' out to a sub. all rca jacks, all pairs L and R.

two pre-outs:
a. upper pre out to sub (no removable jumpers) (for #1 above)
b. lower pre-out (remove jumpers), pre-out to sub, then after sub's crossover back to receiver's 'main in'. (for #2 above).
b. tape loop out/back in
c. signal processor loop out/in.

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Yes you can combine a pair of RCA to a 3.5mm stereo female, then insert the sub's 3.5mm stereo male (if it is stereo male).

https://www.amazon.com/UGREEN-Adapter-Compatible-Smartphones-Tablets/dp/B00B2HP1FY/ref=sr_1_5?dchild...

However, is the sub's 3.5mm mono (1 black stripe) or stereo (2 black stripes)? (l & r would be converted to mono inside the sub)