"The essence of sound" Sound transparency refined to the utmost.

The Black 4.0 is a 4-inch high-end midrange speaker that is the core of the Black Series, born from the collaboration between ARC Audio and world-class speaker engineers.
This model inherits the design philosophy of Robert Zeff, who gained worldwide acclaim for his Signature Edition amplifiers, and is designed to thoroughly pursue "transparency," "naturalness," and "smooth sound flow."
All acoustic materials are carefully selected from cutting-edge and highest quality parts.
In manufacturing, we also undergo a five-stage inspection process of visual inspection, frequency response, mechanical properties, musical response, and unique matching, so that all units are shipped in perfect condition.
As a result, despite its small diameter, the Black 4.0 has the highest level of resolution and spatial depiction in its class, and plays an active role as the centerpiece of a high-end system.
A speaker that accurately responds to the sensibilities of listeners regardless of the musical genre.
The precisely crafted sound is a "music reproduction tool" that goes beyond just a speaker.

※Black Series speakers are sold in pairs.
※Black 4.0 can be used independently or in combination with the Black Series component system.