2 GS 112's arrived yesterday. The pair blows my 410 HLF Ampeg out of the water in punchy bass and solid response. I am coupling them with TH500 and could not be happier. The horn on the HLF is nice because I take bass solos, use envelope filters and octave pedals etc. it's a really clear sounding tweeter and I was worried about losing that when switching to 2 12" speakers and a lot of guys say they turn the second tweeter (bottom cab) all the way down but as far as my needs I've found a pretty sweet sound with both tweeters around 2/3 the way up so far. (still yet to gig with 'er which may sway my opinion, but for now it's sounding NICE) I'm sold on this cab combo and I totally bought it without even hearing them by reading recommendations from players on this site. With all that said, I had to try one cab vs 2 and it's definitely a totally different animal as some on this thread have said. I'm just not happy with the sound of one compared to two... That's the pro sound I've heard from my idols and shakes the house. The single cab is a really tight, aggressive kind of TOO pristine, while the second cab adds air and girth to the equation and gets you the full pro sound. (Makes me wonder what 3 would do!!!) Can't go wrong with these. I was kind of bumme dI couldn't afford the 25 lb SL's but the sound and grins I've got in the last 24 hours keep me from looking back. LAst comment here is that One thing I like about the HLF was that dolly wheeling in and out of places which make it nice for long hauls from the car to the venue. Im curious to see how much wear having to carry two 42 lb cabs will put on me, but I think if ya take one at a time and use both hands I'll notice less pain that trying ot maneuver a 110 lb beast of ouf a Toyota Camry and up a stage by myself. Those days are over! At the end of the day, if your in a rush, I can now throw my bass on my back, tone hammer in my small gig bag over my shoulder and a GS112 in each hand and show up to the gig in one trip and sound THIS good. That's whatsup.