Are your SL2 so lacking that you need to add a sub. I tried adding a sub and it was not a good result. Ok it was a B&W 610 ASW but for me did not work with line level from Supercap. It was better with speaker level inputs. I find my SL2 lacking with certain music replay but put this down largely to my horrible room acoustics.
I think they will do much better in my extension in France than the squarish room in Germany
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The BK is connected high level via the SL2 speaker terminals, its hardly on but adds a lovely richness to the overall sound stage.
The BK XXLS400 is a sealed sub and works very well with the SL2s, Iāve done plenty of tweaking to the point were the BK has virtually disappeared.
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Wow what a room and setup!!
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Wowzer
The point Iām making is that adding a sub is not going to fix poor room acoustics. Also with certain music I would say that the speaker really needs to work properly with the room to sound Ā« right Ā». Mostly this is the case and the sub brings not very much
Have always wondered what 2 pairs of those Gurus would sound like stacked?
The same as one, just more effortless.
A couple of changes over 2022ā¦
CD555 which is absolutely magnificent and the addition of a 2nd PSā¦.
Happy new year to all
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By all means Peter 
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brand PMC.Nice to see an x-pack in such a system. 
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The X-Pack works exceptionally well for its price pointā¦
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Looks great! Iāve been looking for a way to combine getting my system onto Fraim while keeping it in the same place as the TV rather than taking up extra space in the living room (due to household requirementsā¦). Please can you let me know what your TV stand/table is? Thanks
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Iāve been following some of the sub threads, with a view to that being my first 2023 indulgence. BK is one that has caught my attention so I wanted to check on a few things if I may. I note you have one sub and itās sitting outside of the SL2s and directed straight ahead. Does that skew the perceived bass to the right, please? Also, is it connected to both speakers or just the SL2 next to it? Are you using the neutrik lead? I note that it stands slightly forward of the SLs - has that brought any issues of its own, please?
Like you, Iāve come to the view that I probably need one. Intuitively I feel like I should have two but your write up and those of others would suggest one is enough- especially if it is barely on. Iām space constrained so was thinking about a BK double 10ā box.
Agree. Bought mine for its looks but have been amazed at the SQ, even with a budget cartridge.
Most decent subs have a stereo input. This is either line level which has a special DIN to two RCA interconnect that go to the stereo line level inputs of the sub from a dedicated output of a supernait or spare signal output of a naim power supply like a Supercap. Alternatively, one can run cables from the speaker crossover terminals of the SL2 to the stereo speaker level inputs of the sub. The latter iseems to be the preferred approach, which was my preference. A 5m slugged resistor terminated din to 2xrca to sub line level inputs did not work for me. Maybe something to do with my sub. Not sure why it had problems. In the end I gave up with the sub as it did not cure the issues I have with my room
I love the lookā¦still have the original Ronda Red cartridgeā¦.
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Hi Lenny, thanks.
The table is a DIY effort. I used legs from an IKEA Lack coffee table and an 18mm thick piece of MDF with a subframe of (I think) 2x3 timber to attach the legs. Painted black with Frenchic paint. The plinth the TV sits on is just two of the Lack table tops as we wanted the TV a little higher to hide a mark on the wall. I might modify this but wanted it set back up before Christmas.
The Fraim is also a DIY job which I made a couple of years ago. I am planning to upgrade to a proper Fraim this year.
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Thanks. Itās something Iāve prevaricated over for a while. Iāve got a combination of the wrong room for my SBLs and their natural inclination to sound lighter in the bass (but not always!) and it seemed to me that @HiFiman might have dealt with some of the issues that concern me.