AI-generated approximation — not official manufacturer imagery.
About the RöNt II
The RöNt II is a vacuum tube power supply designed specifically for Brinkmann Audio turntables, providing regulated DC power to the motor and acting as a high-quality power-line filter to improve sonic performance. It is especially made for the direct-drive motors of Brinkmann's Taurus, Oasis and Bardo models and for the Sinus motors used in belt-drive turntables such as Balance and Spyder, matching their start-up, drive and standby current requirements. The RöNt II delivers a stabilized output voltage of 24 VDC (24-25 VDC in Brinkmann literature), with an output that is short-circuit proof; the output voltage is reduced or shut down when current exceeds the protection threshold. The tube circuit uses two high-current, low-resistance PL36 tubes together with one 5AR4 full-wave rectifier tube to rectify the secondary AC voltage and regulate the DC output. The rectifier feeds the output tubes via a choke and associated circuitry to reduce mains-borne noise, so the power supply both powers the motor and filters the AC line, yielding audible improvements in clarity, openness and spatial definition compared with the standard solid-state supply. Brinkmann specifies the RöNt II as a single-ended class A topology, optimized for smooth and transparent performance and very low power-line impedance at the motor. All tubes are selected for long life; Brinkmann quotes a tube lifetime exceeding 10,000 hours under full load. The power supply consumes approximately 80 Watts, weighs about 12 kg, and measures roughly 180 x 310 x 100 mm. The RöNt II runs its tubes at operating temperatures that can exceed 120°C, so Brinkmann recommends careful placement with adequate ventilation and caution when handling. It is widely regarded as a performance upgrade over the standard supply, producing audible gains in musicality, particularly in timbral richness and soundstage reproduction.