412 SIMWAT'70 AP-512

1970 Simms-Watts™ 4×12 Cabinet · API™ 512c Capture Closed-Back · 4× SIMMS™ Model 122233 · Made in UK · API 512c Preamp British Vintage 1970 · Simms-Watts (API 512c) The 412 SIMWAT'70 captures a 1970 Simms-Watts™ 4×12 cabinet — a closed-back enclosure built from 3/4″ Baltic Birch 13-ply, finger-jointed, made in UK. Simms-Watts cabinets were a familiar presence on the British rock scene of the late 1960s and 1970s, used alongside the Marshall, HiWatt, and Sound City cabinets that defined the era.Loaded with four SIMMS™ Model 122233 drivers — 12-inch, 50W, 15Ω, 14,000 Gauss flux density — the cabinet delivers the warm midrange and natural compression that characterised British 4×12 tone through the 1970s. The high-flux design adds a particular density at the upper-mid band that is distinctly this cabinet's own.The capture is routed through an API™ 512c microphone preamplifier — a direct descendant of the original 2510/2520 discrete op-amp lineage. The 512c brings the API character established through decades of console work: deep, controlled low-end, an extremely low noise floor, and a punchy midrange that projects forward. The Neve VR version of this same cabinet sits alongside it as the warmer, more vintage-leaning alternative. Specifications Based on: 1970 Simms-Watts™ 4 × 12 Cabinet Speaker: SIMMS™ Model 122233 × 4