Here is what I got from the company's technical support. So it can not be used with 220 V AC directly. ---------- Hello, No, this product is only designed for usage on power systems that output 120VAC @ 60Hz. Use of this product in any other country than where it was purchased and/or its use on any other voltage/power system for which it was designed will cause irreparable damage to the built-in amplifier. The line drawing in the manual is only used as a hookup diagram and has no bearing on the voltage of the actual item sold; it was only used as an example (we had plans to release it in other countries but, those never came to fruition). Let me know if you need anything else.
Service Support Representative (Domestic) Klipsch Group, Inc. - Klipsch | Energy | Jamo | Mirage 3502 Woodview Trace, Indianapolis, IN 46268 USA ------------------
Look at the manual here: http://www.voxxintlcorp.com/docs/common/TK-CLASSI-5-1/TK-CLASSI-5-1_OM.pdf
You can see that the notation on the rear of the subwoofer says "230V." Energy is distributing the speaker system worldwide. I do not know if Energy is providing multiple versions for multiple regions, or if the unit comes with a power cord suitable for your region. Give Energy a call: 1 (866) 441-8208.
Yes, it is acceptable to use with UK mains power. It is rated for 50Hz (UK) and 60Hz (US), and 230V AC (which is within tolerances for 220V supply). The strange thing is, in the manual's illustration, it only has 230V marked, with no 115V markings (US mains power straight from the power line is two legs of 110-120V AC, allowing for 120V household outlets and 240V outlets for ovens, and clothes dryers, etc).
But yes, there is no reason this wouldn't work in the UK.
Anybody tried this in 220V area(UK/Asia)? Probably with a step down transformer? As I understand, the AC power is fed only to the subwoofer, right? Which probably needs to be connected via transformer, is this correct?