40 Kemper Profiles The Ironheart Foundry Loudpedal packs a potent 60-Watt-strong, two-channel guitar amplifier inside one neat little stompbox to complete one of the most portable rigs under the sun. Simply hook the Loudpedal directly to a passive 8 Ohm speaker cabinet when you're on stage or in rehearsals, and when recording, simply connect the fitted XLR DI output up to the audio interface and engage one of the built-in speaker simulations - or simply load in and use one of your favourite IRs.