First up you have a class A/B Audiophile SQ grade amplifier that is capable of doing well over 4KW RMS and if you're slick you can run it in SPL and SQ and compete in two events in the one amp classes of IASCA with the right subs and a little inginuity where you'll run a 4 ohm & 1 Ohm Load on the SH-1 and swap the impedances on the fly! Yeah, I can rig your ride like this... Take a good look inside this amp as well. It looks like good ole American Made Inginuity went into this amp and it sound like it too. Best part is in 10 years or so when they are not to be found this amp will be shipping to Japan for the big bucks just like some of the other elite Old School amps. Funny that orientals would prefer an American Made amp over there own products don't you agree?
Second, you have a class D Chinkaneese

amp that looks like it has a transistor package from a 225.2 450 watt Fosgate or something. Are we using any class D amps in SQ at all these days? I sure hope not, every class D amp I have ever had sounded like pure "assk me" in an IB set up... I sure would'nt turst the class D amp to control my subwoofer cone in FREE AIR! I know in SPL, distortion can often be the winning differance, CV knew this too and the Strokers were made adjustable so you could use them in SQ or SPL back in the day... but how many of the SQ vehicles can even run in the same lanes as an SPL vehicle without ducking their head in shame. I would assume if the class D amp is winning anything in SPL it must be this Distortion factor from tossing the cone arround uncontrolably as is the usual in SPL. At least CV took this into consideration when they designed their old school Strokers and made an adjustment on the pole to prevent damage in this distortion. Key is man you need a box if you use that amp period and I don't use boxes at all. You also will not see any resale value in the Chinkaneese

amps down the road either and reputable repair shops might not even want to waste time repairing one of them in 5 years. I am not saying that for a cheapo amp that the class D is not good but I am saying that in 5 years it will only be just another cheapo amp and part of the forgotten Car Audio history like so many other amps.
I urge you again to look closely at the guts of both amps. After that if you're still thinking about the Chinkaneese

amp contact me and I'll be happy to take the US Made amp off your hands and buy you the Chinkaneese

thing. RIP JWF!