Forums - Setup help please.

paulb

Verified Member

Posts: 4

Setup help please.
04/02/25 at 23:35:14

I have finally received my Lii Song Z15M speakers and have unpacked my amps and preamp and streamer from storage. It has been a while and I too have need of assistance with the wiring of all this equipment together.

I have:
2 SE84UFO2 amps
Schiit Saga pre
Wiim Pro streamer

Waiting for:
SMSL DAC
SMSL CD transport

I have a red and a white jumper from Steve as well as a pair of 2 into 1 RCA cables also from Steve. A simple diagram would really help my aging brain be able to get this all wired correctly. Thanks, Paul

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CAJames Seasoned Member "I've run every red light on memory lane." Posts: 2393	Re: Setup help please. Reply #1 - 04/03/25 at 01:03:07 Check out page 17 of the UFO manual for instruction on how to setup the amps for mono: https://www.decwareproducts.com/_files/ugd/f1f204_c93e1ffb7c8d472bbc314c7d4cdae4... Note the actual diagram is for balanced mono, which you do NOT want. Instead follow the instructions for bridging into mono at the top of the page.
Back to top	[FOOBAR2000 \| Jay's CDT2 MRK3] -> Denafrips Terminator 2 + Gaia Sumiko Pearwood -> Mapleknoll Athena -> Luxman SUT -> Mapletree Phono 3E STR-1002 -> Woo WA22 -> 2x UFO25s, balanced monos Omega SAM , Hifiman Arya, Audeze LCD-XC IP Logged

Tony Seasoned Member "Life without ..music is inconceivable" A.Einsteln Posts: 735	Re: Setup help please. Reply #2 - 04/03/25 at 01:11:17 Hi Paul, I have an interest in your setup so I hope you will keep us in mind as you move forward. Congrats on venturing into what I imagine will be a rewarding system. Tony
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paulb

Verified Member

Posts: 4

Re: Setup help please.
Reply #3 - Yesterday at 17:11:41

My question really regards the connection of the 2 Y cables into the the 2 Decware amps Where do I put the 4 RCA ends into the amps then into the preamp? Also, I am confused by the red and white jumpers since I am using 2 - 2 channel amps wired as mono. I hope this isn't too simplistic but I really don't seem able to find this specific info on the owners manual or the Forum. Thanks for your patience. Paul

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CAJames

Seasoned Member

"I've run every
red light on memory
lane."

Posts: 2393

Re: Setup help please.
Reply #4 - Yesterday at 21:06:25

You run the red and white jumpers from the left and right output of your preamp towards the amps, red to right. You attach one side of the Y connector to the left input and the other side to the right input of each amp. Then you connect the single end of the Y connector to the red or white jumper from the preamp.

At least that’s how my setup works.

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[FOOBAR2000 | Jay's CDT2 MRK3] -> Denafrips Terminator 2 + Gaia
Sumiko Pearwood -> Mapleknoll Athena -> Luxman SUT -> Mapletree Phono 3E
STR-1002 -> Woo WA22 -> 2x UFO25s, balanced monos
Omega SAM , Hifiman Arya, Audeze LCD-XC

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paulb Verified Member Posts: 4	Re: Setup help please. Reply #5 - Today at 00:58:06 I have the jumpers on the speaker terminals L+ to R- on the L amp and the same on the R amp. The Y cables single end go into my preamp L+R output. The other double ends of the Y cables go into the L- and R+ on the left amp and R- and R+ on the R amp. ?
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CAJames

Seasoned Member

"I've run every
red light on memory
lane."

Posts: 2393

Re: Setup help please.
Reply #6 - Today at 01:08:19

If your Y connectors go directly into the preamp then yes, I think. The only potentially tricky part is your amp has 2 sets of inputs and a switch to select them so you need to be sure you've got the Y connectors in the "same" L and R input and it is the input selected by the switch. The inner input on one side goes with the outer on the other as I recall, I think that is what you mean by L- and R+ inputs. If nothing else trial and error should get you to the right answer.

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[FOOBAR2000 | Jay's CDT2 MRK3] -> Denafrips Terminator 2 + Gaia
Sumiko Pearwood -> Mapleknoll Athena -> Luxman SUT -> Mapletree Phono 3E
STR-1002 -> Woo WA22 -> 2x UFO25s, balanced monos
Omega SAM , Hifiman Arya, Audeze LCD-XC

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paulb Verified Member Posts: 4	Re: Setup help please. Reply #7 - Today at 01:22:01 Exactly right! I am trying to figure the switches and the wiring pretty much blind. I may have to call Steve and ask him to walk me through it. Good thing the amps are bombproof!
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