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Gk 2000 rb

I had one that I bought almost new (the first owner returned it to the store because it was too much amp for what he needed) I got it for a good price.

It had loads of reserve power. I used it to drive 2-1X15 cabs and ran it bridged mono at 4 ohms. It was way more power than I needed too and even though I had it mounted in a lightweight SKB 4 space rack, it was more weight than I was willing to haul around.

Other than that, it sounded like any good GK amp. Previously I had a 400 RB that I used for 10 years. The 2000 had the same sound but more solid bottom end at higher volume. Great for outdoor gigs where the 400 would be straining a bit.

I had no problems with it and sold it for a decent price when I decided I didn't need all that power and actually wanted something lighter.

If the one you're thinking of is a good price and is trouble free, then I'd say get it if you actually need the power. The advantage with the 1001 RB is lighter weight, plenty of power for almost anything except driving very inefficient cabinets and a factory warranty.

Others here can tell you more about the 2000 and how to upgrade them if needed.
 
headroom is great but the 2000RB might be overkill. I just got a 1001RB-2 and it pushes my two 4x10s nicely! It replaced my rack with a Crest 900V power amp which put out 1100 watts into 4 ohms. The GK seems to have more in reserve than the Crest did. It weighs less than half than the old pre/power rack. Great amps! It's unlikely that I'll ever need more power than the 1001 can put out.
 
Ive used one for 6 years as my main amp pusing just about ever cab you can think of, and yes way more power then you'll ever need. But the head room gives you clean low-end at lower volumes that other amps just dont have. To this day I'm still tweaking the contour/bottom knobs getting a more old school Gk sound, Im finding with this amp that less is more.
 
+1 on the headroom aspect of the amp... IIRC, it's built to hold 10,000 watts in reserve for those "special" notes!:bassist:

However, if you want to avoid any problems, look inside the top vents and make sure that the amp is equipped with TWO cooling fans over the heatsink fins. My early production 2000RB came with only one and would go into protect mode too easily. GK were great about retrofitting the 2nd fan, but like I said... if you want to avoid problems, just look to see that it's already there!:smug:
 
how many watts bridged at 4ohms was the 2000? (not 2001)

The 2000RB is 1000 Watts at 4 ohms.

I bought this used, and it is a great sounding amp. I play with two loud guitarists, and it is very helpful in competing to be heard.

One thing to keep in mind is that to run it in bridge mode, you need special speakon cables. The speaker end is normal, but the amp end is wired +1 and +2, or something like that. The wiring diagram is on the back of the amp. I purchased the cable and speakon connectors and made up the cable myself, as my local music store wasn't too helpful in procuring the right cables. It really wasn't too difficult.