I couldn't say for sure, but it certainly feels like that's the case. I imagine a passive pad would be easier & cheaper to put in than a boost, at any rate. I've taken to playing it with the volume knob out, probably all in my head but it just feels like there's a bit "more" there.
Changed the strings for the first time since I got it, same set as stock, and wow. I didn't realise how dead they'd gone so fast - sounds amazing with fresh rounds on. Usually like them a bit more broken in, but sadly might have to up my string budget to an extra pack or so a year.