Hey SF,
Well that's good to know! ...perfect then

Hey Scott,
You have the ES1, third iteration which all we geeks call the 1.3 and it came out in 2010. Just confirm that you do not have three hex heads behind your saddle. FWIW, along with the others here, I have long since decided and proclaimed that the ES1.3 is of the best-sounding pickup systems for a band setting:
- it is not a piezo system so doesn't suffer from piezo quack so immediately sounds better than most
- the 1.3 preamp is voiced very well and precious little eq is needed for a good acoustic guitar tone in a PA
- it has the best gain-before-feedback short of a sound-hole mag pickup;
priceless in a full band or loud stage setting
- and has a lo-z output capability: use a TRS cable and you get a 6db boost and a balanced output for a console or PA, as well as straight into an audio interface. This is a genuinely pro-level feature rarely found in any pickup system.
There are those who like the ES2, to be sure. I own both and pick the ES1.3 any day, any time, no question. I still can gig with my ES2 and get decent tone, though with more dramatic EQing required to get me there. The ES1.3 is closer to what an acoustic sounds like out of the gate, and thus easier to get it to sound like a good acoustic guitar through a PA. What is the specific problem you are experiencing with your guitar when you plug in?
Edward