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I really would like to know the manufacturing date on these as some of the older ones have issues..
Just received mine from the latest drop. Manufactured in Jun 2017
You are misinformed.
The older units (WITH the ON/OFF switch at the rear) have COMPLETELY NORMAL aging issues, but they are built like a tank. They have a heavy super-reliable linear transformer (which lasts forever), Class AB discrete amp sections, and leaded, easily replaceable capacitors.
The newer units (WITHOUT the ON/OFF switch at the rear) have the lightweight, unreliable SwitchMode Power Supply , completely unreliable SMD capacitors, with IMO sloppily-designed Class D amp sections (to keep costs down).
If the older units lasted close to 20 years, don't expect the new units with the SMPS to last longer than 2-3 years. It's a fact of design and lack of reliability, and there's nothing a consumer can do about this.
If the older heavy 2.1 was still being manufactured today, its price would have to be close to $350, which Klipsch has decided that that is a market segment in which they don't want to play.
So component choices and reliability are sacrificed to meet the sub-$150 price point.
Any serious listener who wants one of these, will be looking for an older unit WITH the ON/OFF switch, even if it is not working, and have it easily repaired to working status.
Put an older one next to a brand-new one, and your ears will tell you very quickly, which is the better unit. It isn't the new one.
I have no interest or loyalty to Klipsch or any other manufacturer - I'm simply a technician who calls the shots as I see it, after having repaired tens of these units over the past 15 years.
I'm still using a set from 2009-2010, only work I ever had done was to have the controller plug rewired off someone from Ebay after I accidentally pulled out the cable end.
Honestly, I can really use your help on potential fixing of my old set.
I have the 5.1 set, the speakers themselves are fine, but the subwoofer doesn't work any longer. When I last used it, it gave very little bass, almost like it wasn't getting enough power to the driver. I held onto the whole set, since it cost me so much when I bought it. I'm very interested in trying to replace it. If this kinda problem is something similar you ran into, I'd appreciate any pointers in the direction I should go with them.
No problem. Check my Bio - About me. There, you'll see my website.
Go there, on the home page in red is my contact info.