These uber-popular Amps are back on sale. Not as cheap as they have been but still extremely good value and pretty much the no-brainer choice across the globe for many purposes including PA, Studio, Home Theatre, Hifi and SubWoofers. Decent power & quality output, flexible DSP and rock solid reliability offering probably the best bang-for-buck available.
The 1502 boasts higher output power plus a slightly better drive circuit which is apparently supposed to improve hum & noise measurements but as per anything with audio it's really up to the listener and whether they can determine if the extra $100 is worthwhile.
Showing as backorder for me