SCA Confluence Loudspeaker System

Introducing Secret Chord Analogue’s Confluence Open Baffle Loudspeaker System—a meticulous union of purity, presence, and power. Designed for listeners who crave emotional realism and effortless musicality, Confluence delivers an experience that transcends traditional boxed speakers. By combining a true open-baffle architecture with a seamlessly integrated sub-bass system, it brings the magic of live performance directly into your listening space.

At the heart of Confluence lies its commanding 15-inch high-sensitivity full-range driver, engineered for effortless dynamics and breathtaking immediacy. With an impressive 96.7dB sensitivity and 8-ohm impedance, this driver is tailor-made for low-power tube amps, single-ended triodes, or any amplifier that thrives when paired with efficient loudspeakers. The wide Fo–16kHz frequency range delivers astonishing coherence from the deepest fundamentals of vocals to the shimmering harmonics of strings and cymbals—no crossover in the critical midrange, no phase anomalies, no artificial coloration. Just pure, unadulterated sound.

Construction quality plays a central role in the Confluence philosophy. The full-range driver features a cast frame for rigidity, a lightweight paper cone for natural tone, a fabric surround for long-term durability, and a Conex damper that maintains control even under dynamic stress. A ferrite magnet paired with a precision copper shorting cap ensures low distortion and smooth response across the entire band. And with a substantial 7.7kg motor assembly, the driver is built to perform with authority.

To complement this purity, Confluence incorporates the SCA Seamless Sub, a uniquely engineered upward-firing subwoofer system housed in its own sealed enclosure. Powered by an articulate and muscular 150W plate amplifier, the sub integrates flawlessly with the open-baffle main driver—preserving the transparency and speed of the full range while extending low-frequency performance to true full-range capability. The plate amp offers a 40Hz–180Hz low-pass adjustment and a clean 90dB signal-to-noise ratio, allowing you to tailor bass presence to your room and listening preferences with precision.

The subwoofer itself features an 8-inch coated paper cone, a rigid steel basket, ferrite magnet, and aluminium shorting ring. With 90W rated input and a 20Hz–20kHz frequency spec, it provides articulate, tuneful bass that never overwhelms or muddies the midrange. Despite its compact 2.52kg frame, the SCA Seamless Sub produces depth and impact surprising for its size—designed not to dominate, but to support the full-range driver with musical elegance.

Together, these elements form the Confluence Open Baffle Loudspeaker System: a loudspeaker that vanishes, leaving only the music—spacious, holographic, dynamic, and profoundly lifelike. Whether you're drawn to the intimacy of acoustic recordings, the richness of jazz ensembles, or the wide-band energy of orchestral works, Confluence delivers with authority and grace.

Experience sound unboxed. Experience Confluence. Where engineering, artistry, and emotion meet.