Pulverizer + Powered Furnace requires Gold & Redstone, which are only found at the bottom layers, close to bedrock. If you don't have Gregnerfs enabled, Macerator + Electric Furnace is cheaper ore doubling, since it doesn't require anything that can't be found in your first 10~15 minutes of mining. That said...
Induction Smelter is really, really underrated. When you start quarrying stuff, using Cobble Gen + Pulverizer to get sand and processing all your normal ores through it, you'll find that you'll quickly amass some non-trivial amount of Rich Slag. Rich Slag, in turn, can be used in the Induction Smelter to get three ores per two dusts. Which equals to a tripling of the yield of an Ore. But now, if you process your ores *first* through an Industrial Grinder, and *THEN* smelt the dusts in the Induction Smelter while using Rich Slag, you'll get quadruple, and even quintuple yields for certain types of metals.
Which is really useful. But not quite so simple to set up. If you want to go really crazy with it, you can even process your really valuable ores through Factorization first, to get 350% ingots, then macerate them, and then smelt them with Rich Slag in the Induction Smelter... Then it'd be a 700% Yield. Which is very lol worthy. Of course... Only do this with the most valuable ores
Induction Smelter is really, really underrated. When you start quarrying stuff, using Cobble Gen + Pulverizer to get sand and processing all your normal ores through it, you'll find that you'll quickly amass some non-trivial amount of Rich Slag. Rich Slag, in turn, can be used in the Induction Smelter to get three ores per two dusts. Which equals to a tripling of the yield of an Ore. But now, if you process your ores *first* through an Industrial Grinder, and *THEN* smelt the dusts in the Induction Smelter while using Rich Slag, you'll get quadruple, and even quintuple yields for certain types of metals.
Which is really useful. But not quite so simple to set up. If you want to go really crazy with it, you can even process your really valuable ores through Factorization first, to get 350% ingots, then macerate them, and then smelt them with Rich Slag in the Induction Smelter... Then it'd be a 700% Yield. Which is very lol worthy. Of course... Only do this with the most valuable ores