Description

The RS Mastermind 4 amplifier is a pinnacle of audio engineering, crafted to meet the demands of audiophiles seeking absolute sonic clarity and power. With its dual mono power supply structure, every pair of channels operates independently, allowing for crystal-clear separation and depth in stereo imaging. Input stabilization is expertly managed by eight Mundorf capacitors, totaling 88,000 µF, supplemented by six low ESR and ESL capacitors providing an additional 13,200 µF. This design delivers a powerful, low-noise current supply, ensuring high-performance audio with impeccable fidelity.

High-efficiency MOSFETs are utilized to achieve optimal power output, while specially engineered composite inductors regulate the primary side, preventing audio current reflections and providing a smooth inductive supply emulation. For output storage, eight Mundorf capacitors totaling 36,700 µF are dedicated to handling transient demands, adding responsiveness and control.

A key advancement of the RS Mastermind 4 is its integrated analog gain-control chip, which delivers precise gain calibration regardless of environmental factors such as temperature, humidity, or atmospheric pressure. The gain in the RS Mastermind 4 is exceptionally precise because it is controlled by a digital processing rather than a traditional physical potentiometer. The result is a consistently stable operating point, particularly noticeable in car audio competition, where even minimal drift can affect soundstage, maintaining consistent positioning, width, and depth even during long listening sessions.

The RS Mastermind 4 is managed by a sophisticated 32-bit ARM microprocessor, which oversees power supply and amplifier protection, as well as thermal regulation. It generates a precise frequency reference, minimizing interference for pure, uninterrupted listening.

The input stage employs a fully differential structure, maintaining symmetry between inverted and non-inverted channels to deliver an exact, balanced signal path. Silver mica capacitors ensure accurate frequency compensation, while an ultra-high-quality Alps potentiometer provides fine-tuned gain adjustment. Dual FETs in the input stage, alongside a low-feedback gain architecture, drastically reduce intermodulation distortion, preserving the richness and detail of the audio.

Equipped with 16 high-performance power transistors with Kelvin compensation for high current bias and a 4-watt Class A setting, the RS Mastermind 4 delivers power with exceptional precision. Industry-grade power terminals ensure robust connectivity, making this amplifier a dream choice for audiophiles who demand unparalleled clarity, control and profoundly stable and accurate stage presentation.