both the doepfer ones do this - it's kind of the definition of a sequential switch

a-151 is 4hp and has 4->1 or 1->4 switching capaabilities

the other a-152(?) is much bigger and has 8->1/1->8 and a few other tricks up it's sleeve

"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia

Utility modules are the dull polish that makes the shiny modules actually shine!!!

sound sources < sound modifiers < modulation sources < utilities