I heard good and bad things with the Crate Powerblock, and the general concensus is that: those that want it sdistortion will be disappointed; those that use it to hear just the effects would be great. In essence, PowerBlock is more or less a PA amp.

The question is, aside from a refurb/blem/second hand PowerBlock, is there any other alternatives, including power amp and PA amp? What I want mainly is its size and volume.
Mabe a cheap amp/with an effects loop, using return effects as imput with the effect.
Schecter C-1 Hellraiser
Ibanez EX 470 (1991)

Peavey 6505 combo
Vox Valvetronix AD15VT
Danville 1X12 Cab
Kustom 12w tube

Dunlop Crybaby
DOD overdrive(YJM)
Boss Ns-2
Dod 250 Overdrive
THe Powerblock is also ideal as a bass amp as well. It'll do decent AC/DC distortion, and cleans up pretty well, however, it's still kinda lacking. You won't find a louder amp for the price, nor will you find an amp that can work decently for bass, and as a PA system.
Peavey 5150
Mesa Mark IV
Mesa Single Rectifier (Series 1)
Fender Custom Shop Tonemaster
Roland Microcube

-Whitebox OS 1x12
-Port City OS 1x12

Digidesign Eleven RackAxe Fx Ultra