Speaker wire size VS speaker size. Should bigger speakers use bigger wires?


After 16 years using Monster 2.4s speaker wire (fairly large gauge as it looks like #10 or maybe even #8) I thought I'd try Dueland 16 gauge copper, tin plated, oiled & cotton wrapped. They have been in my system for a few months now.  While the music is very detailed and great sound stage, I feel the bass may be a bit weaker.
I know the "Monster" word is not favored on A/Gon, but it always sounded very very good.  Before I kick out the $ for the new Dueland 12 gauge, I was curious as to the wire size and effect on sound.  I see some folks run up to 22 gauge which to me is silly puny.  My wire length is 8"
Amp Krell FPB300cx, speakers Infinity Renaissance 90.  The speakers are 4-way semi-planer with a nice 10" woofer that goes down to 27hz which aint bad.
Thanks for your input, John
jsd52756
Based on what I read, wire size selection should be based on how low in impedance the speaker system goes.. My totem hawks are more listenable (more punchy bass) with belden 10awg than with kimber 4pr 14awg.  The opposite is true with my wharfedale denton.
My Infinity speakers can drop below the 4-ohm range from what I read quite a few years ago.  I guess their really large Kappa 9.1 series 2 dip way below, maybe even to the 2-ohm range.  The Infinities make an amplifier work that is for sure.  I cooked a Yamaha MX-1 and a Krell KSA 200s with them.  The 300cx makes them sing. 
-John
randy-11 has it right.  I would only add that paying attention to the conductor and dielectric quality as well as connectors on the cables can/do make a discernible difference.

One surprise for me was when I got my Vandersteen Treo CT speakers with their low 85db efficiency, my very heavy gauge "Earth series" cables from Audioquest made with lots and lots of very pure copper lent a mid bass "thickness" to the sound.  Moving to Paul Laudati's Clear Day silver cables opened up the sound, ridding my system of that thickness and revealing smooth treble detail that I had believed the carbon tweeters were capable of but I didn't know what I had been missing until inserting the Clear Days into the system.

One thing however, in support of randy-11's statement about efficiency, I had to buy the Clear Days with the most silver, the double shotguns to accommodate to the low efficiency.
Speaker wires are important, bur an overkill is surely not needed.
Depending  the need of a high bass level 0.75mm2 till 1,5mm2 is usefull the rest is overkill.
For the rest: 4-pole calculations will clear everything.
regards
Ton