There is something to be said about authorized dealers. However, Radio Shack sells these as a third party vendor, though they charge state sales tax, and should an issue arise I'd have to ship the sub out of state at my expense. As opposed to having one of my local shacks handling the issue sans shipping. On the other hand I ordered a Y adapter and a RCA cable w/o shipping as that was included in the same order.
I note Proadvanyage listed 44 in stock and that number remains the same, so they aren't exactly flying off the shelves. They also provide faint information save the model number w/very basic of descriptions. I wondered if this was an outlet of returns, for whatever reasons, that apparently functioned. I don't know how they ended up w/these, nor intend to cast aspersions. They claim 100% satisfaction, list no warranty claim that I can find, and provide a link-less addy for NXG technology website.
As far as the shack is concerned a two year warranty in this price range seems more than sufficient. As well I'd rather be able to ship at my expense, 1-2 years down the road, than not should the amp crapout on me. I presume this second round/reload is the same sub. I'm going to integrate it w/my oddball speaker arrangement that includes one F-10 Klipsch wired as a center and a SVS SB-1000. Right now the mains are set at 100 w/SB going up to 120 for a little crossover boost.
A couple of things in particular that I found interesting about Jim's review was the sensitivity of the auto on function and the Hz setting. "... it doesn't come out of standby easily enough, and it goes back into it too quickly. For most of the review I had to use On instead of Auto because it kept going in and out too frequently. Very annoying. I also found 60Hz a better crossover setting than my normal 80Hz because some male voices would occasionally come across as a bit thick on the higher setting."
I'm going to try and use the auto on as a gauge of sorts betwixt various CD and FM/CD. As it stands w/current setting I need a -49 to bring the SB out of standby on my FM jazz station. I'll try the NXG at 60 Hz and see how that flies. Though I rarely watch movies, don't incorporate the LFE, perhaps this ported sub w/500 watt dynamic/(continuous) power will find a role if nothing else as a movie anchor.
ETA: The Klipsch F-30, Def Tec BP-8 to a much less degree if any, overshadow the sealed sub in movie mode. Three hundred watts sealed within this spacious surrounding just doesn't have the legs to keep up w/4-8" woofers. That's not a bad thing as I currently do not use any of the speakers to watch movies. I have a spare F-10 being used as half of a stand. Maybe I could combine it, w/small amp, and the ported NXG as full-time telly/cinema sound.
Speaking of an amp what's the odds, warranty notwithstanding, that the sub's amp is 8 or 4 ohms? If so wouldn't I be able to splice one or both of the F-10 w/NXG as the TV audio package? I'm happy enough w/music end as it is now though it wouldn't be a loss to lose the single F-10 masquerading as a center, then combined in parallel w/other F-10, if the sub amp was 4 ohm. I'm sure it might not be practical as I can see a potential to separately adjust volume of F-10 compared to the sub. The single 6" woofer w/horn of each F-10 certainly doesn't require much power and that would be far better than the OEM speaker.
Edited by Nixterdemus - 2/22/14 at 8:50am