Park P18C Park 18 Combo (1974/Tremolo)

The P18C is the combo version of Park's take on the sixties 18 watt British circuit - the small, portable valve amp Jim Marshall built to answer the WEM Dominator while the rest of his line got louder. Park hand-wires it with its own components and adds circuit revisions from Mitch Colby that push it well past the polite original. Two individually voiced channels run separately, jump together with a patch cable to blend the voicings, or cascade internally from a front-panel switch for real gain at living-room volume. A pair of EL84s does the work, and the footswitchable valve tremolo on channel two gives you the shimmering, swampy modulation the vintage combos are remembered for.

Power scaling is the feature that makes it usable everywhere: 18 watts, 9 watts, or 1 watt, with the dynamics and the tone intact at the bottom setting rather than the thin, choked sound most attenuated amps give you. It runs into a 12 inch Celestion Greenback as standard, with the Creamback 65 or the Vintage 30 available as speaker upgrades. Two speaker outputs switch between 8 and 16 ohms, the chassis is top-mounted in the traditional way, and the output transformer is a UK-built clone of the Radio Spares unit the originals used.