Dude... Spectron amplifiers, arguably among the BEST amplifiers on the PLANET, and in the same category, I would include Halcro, Crown, Adcom, Bryston, Aragon... SERIOUSLY, you need to take a look at how ALL of those are assembled. Not a ONE of those products is point-to-point wired. Circuit boards found in all of them. I know for a fact that the Aragon, Spectron, and the Halcro are ALL hand assembled with... wait for it... SOLDER. The distances that any electrical signal MAY (OK, does) have to travel through in any given soldered connection is SO short, that the chances of it "messing" with the signal in SUCH a significant manner so as to HEAR it... Ain't gonna happen. I'll give you that you wouldn't ever use a length of solder as a speaker wire, or indeed even as a low level signal carrier, but as a connection? You are WAY over-analyzing it's purpose as well as it's capabilities.
Bare metal to metal, BTW, is a VERY incomplete connection, FAR worse (atomically speaking) than solder. The INSTANT any metal is exposed to air, it corrodes... That's right, it OXIDIZES. So really, you have oxide to oxide, with all of it's associated jackings, including capacitance, inductance, rectifications (that's right - DIODE simulations... Yes, they are in there...) Solder contains rosin, which when melted washes away this oxide coat, and allows the solder to flow in behind it, in an air-free environment, and prevents the oxide coat from even existing in a connection. So, you see, in THAT respect, solder (properly applied) is a FAR superior connection to "bare metal" contacts. There is ONE option to exceed the mechanical AND electrical superiority of a soldered connection, and that is a hot rosined (to remove oxide coat FIRST), cold welded joint. These are EXTREMELY difficult to implement correctly, and you will never be able to tell, without X-Ray inspections, whether the connection truly
is cold welded. Solder is a far easier, and 95+% of a cold welded joint. For the effort and expense involved? Solder. You can even use silver solder, which has no lead in it (the worst of the conductive parts in all flavors of solder, I'll grant you.)
Mechanically, in a harsh, VIBRATING environment like, say, oh, A CAR (Wha...? A CAR?!?!), solder will provide a FAR better mechanical connection than a twisted bare metal connection.
Do me a favor... Look inside a crimp connector sometime... I don't really care WHAT type of connector... What is it's construction? I'll tell you what it's construction is... pretty much ALL of them are tinned copper tubes, (tinned with what? solder!) with a plastic cover. Crimp caps are aluminum tubes... GAH... Aluminum. Aluminum mated in CLOSE ATOMIC PROXIMITY (i.e. MASHED) to copper... can you say galvanic action!?! Yeah.. NOT good. I'll take the soldered connection. (My nickname at work is Mr. Wizard. I'll talk about this kind of stuff all day long (or all night long, which it happens to be right now...))
::::EDIT::::
Only 250 watts for 80Hz and up?? I have 370 watts to EACH MIDBASS... 125 watts to each midrange, and 125 watts to each tweeter (my math tells me that is 500 watts for 300Hz and up...). Yeah, I can say "Headroom". Let's see... I think I paid 400.00 for the mid-bass amp, 180.00 for the mid/tweet amp, the Adire 6.8's were free, as were the Vifa 4 inch mids, and I think I recall 80.00 for the JL fabric dome tweeters... So for only 260 dollars more than you you spent, (or half again as much) I got over 1.2kW of Eclipse power, (2.4 times the power for 50% more money... I got the better deal, I think)
and three way systems in the doors... I don't even want to TELL you about the signal processing capabilities... And I have not even installed the subs, yet. Those are TCSounds TC-1000 tens, on an Eclipse DA-7232 4kW Digital amplifier. Oh, and guess what? It's all installed and assembled with (gasp) SOLDER! Are you REALLY gonna put Clarion, Jensen and Vibe against Eclipse? 1: You're gonna get CREAMED, and 2: you got took, paying 500 dollars for that stuff... Especially if you bought it on eBay.
Still wanna brag?
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."