I'm looking for an amp around the same as you but you didn't list a budget and 2nd an amp 2000-3000rms is not a SQ amp. I'm just looking to find a good deal on a used amp about 2500-3000rms on a $350-$400 max budget. If you gave more info like that more people would help.
This is just a quick list on good solid amps in which you don't pay the twice as much pricetag.
A good amp with 2200rms is an AQ2200D $389 each shipped but it does it at 1ohm. Cheap price and why do you need @ 2oms preferred? You didn't list or specify if you already have certain subs or not.
Crescendo 3KWP, $550 it does 3-4Krms but that is between 1ohm and .5ohm
Like I said, I know you specified 2ohms but its hard to help without any information like budget and subs. Most amps that output 2-3K @2ohms are gonna be more expensive for a solid built amp.
If you want a cheap amp that does put out rated @2ohms look at an audiopipe 3000, you can get them for like $330 shipped on
ebay.
If you want to spend a little more money look at Sundown Audio but they run more expensive. Maybe look at some used sundowns.