Ok, please excuse this question, but do you have the preamp plugged into the LFE input on the REL?

The real sub is connected with highlevel and with black ground on the chassi screw and red/yellow on +termial for each channel on the amp.

That’s the correct method.

How does every one set there toe on olympica?

I have now done some messurement.

with the phase 0 on the sub (purple only olympica 3)
https://www.bildtagg.se/file/225lv0y2dtfr7n77menfk7p

RT60 phase 0 on the sub
https://www.bildtagg.se/file/rne6omfkkv7w72sgva9y2zn

Waterfall phase 0 on the sub
https://www.bildtagg.se/file/9mcks6v9n1tpor6r3yudcbs

with the phase 180 on the sub (purple only olympica 3)
https://www.bildtagg.se/file/jxg35tcf7li3a9j4dnvkaq84

RT60 phase 180 on the sub
https://www.bildtagg.se/file/i1jzvrg6wcqeew30320i40qw

Waterfall phase 180 on the sub
https://www.bildtagg.se/file/6wu4sy384wenv3bh7okqn8p


would it help to add bass traps to take the edge of 40hz? And i where would i place them, in the sub corner or/and the oppisite?

When I had mine, I crossed the streams behind my head by about 18”... the speakers and listening seat were an equilateral triangle with 8’ sides.

I found a laser measurer was good to point them. Have a person stand behind your listening position at 18”. Can use a laser pointer, but having the distance adds a check of the positioning. Obviously a tape measure can work as well.

Of course the bass is primarily controlled by the speaker placement relative to back wall and corner... but you know that.

The other thing is your listening position is very close to the back wall which is likely a ‘hot’ spot for the low frequencies. Pulling your sofa out from the wall might help as well.

When your sub is integrated well, you shouldn’t be able to hear it. I know that is counterintuitive but it’s true. You should not be able to locate it as a source of sound.

As I mentioned in your other thread, an active crossover would help you integrate the sub better. Specifically, you could remove your Main speakers from reproducing much below 50Hz and hand off all of that job to your sub. That might help you tame the 40Hz room resonance you have.

The problem is now solved, Just brought a pair of Amati tradition in red that stands in the room now and the sound is miles better with this speaker!

That will do it. I loved my Olympica’s but the performance of the Amati are on a whole new level.

Congratulations on a fine upgrade!