Sir jhnkvn, I know familiar ka sa mga JBL. I was able to download 2types of GTO609 pdf spec sheets. When I was reading both spec sheet and compare it to the pdf owner’s manual may pinagkaiba pala (RMS and frequency). I want to ask which is which. Maybe new and old model, but how would a newbie know which is the old and the newer model?

Here is the screenshot:

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