Zero-Ohm Systems 4K-2 Disruptor 2-Channel Passive Speaker Distribution System

The Zero-Ohm Systems 4K-2 Disruptor is a patented passive speaker distribution system that connects between any power amplifier and multiple loudspeakers — handling up to 4,000 watts per channel across 2 channels without the need for 70V or 100V transformer products. It eliminates amplifier load and impedance concerns entirely, including across extremely long cable runs, making it the most direct path from amp to speakers in large-scale installations.

Audio engineers and AV integrators searching for a reliable passive multi-speaker distribution system without 70V transformers will find the 4K-2 purpose-built for exactly that application. It supports any speaker impedance — 2, 4, 8, or 16 ohms — and allows multiple loudspeakers to be wired in parallel down to sub-1-ohm loads, a capability that traditional transformer-based systems simply cannot match. Whether you're distributing audio across a large venue, retail environment, house of worship, or campus facility, the 4K-2 handles the signal path cleanly and uniformly.

Built in Canada and bearing CE and RoHS certifications, the 4K-2 Disruptor connects via industry-standard Neutrik NL4 Speakon connectors on both input and output, ensuring compatibility with professional amplifiers and speaker systems across the board. Its full-range 20Hz–20kHz frequency response and identical output phase relationship with all power amplifiers preserve audio fidelity across every connected loudspeaker in the chain — a critical requirement in professionally installed sound systems.

Key Features of the Zero-Ohm 4K-2 Passive Speaker Distribution System

• Transformer-Free Design: Eliminates 70V–100V transformer products entirely, preserving full-range audio fidelity and simplifying installation in commercial and large-venue environments.
• 4,000W Per Channel Power Handling: Supports high-output amplifiers across both channels simultaneously, making it suitable for demanding installed sound applications.
• Universal Impedance Compatibility: Accepts 2, 4, 8, and 16-ohm speakers in any combination, enabling flexible system design without impedance-matching calculations.
• Parallel Multi-Speaker Wiring: Allows multiple loudspeakers to be connected in parallel to impedances below 1 ohm, with uniform power distribution maintained across long cable runs.
• Neutrik NL4 Speakon Connectivity: Industry-standard Speakon connectors on all inputs and outputs ensure secure, professional connections compatible with any Speakon-equipped amplifier or speaker.
• Full-Range Frequency Response: Delivers 20Hz–20kHz response with consistent output phase across all connected amplifiers, preserving audio coherence throughout the speaker system.
• Rackmount Form Factor: Standard 1U rackmount chassis with included rack ears fits cleanly into any professional AV rack for permanent installation.

Technical Specifications

• Model: 4K-2 Disruptor (formerly MS-4R)
• Channels: 2
• Max. Power Handling: 4,000W per channel
• Frequency Response: 20Hz – 20kHz
• Frequency Range: 20Hz – 20kHz
• Min. Output Impedance: 0.1 Ohms
• Compatible Speaker Impedances: 2, 4, 8, 16 Ohm
• Input/Output Connector: Neutrik NL4 Speakon
• Input Pin-Out: Pin 2+, Pin 2–
• Output Pin-Out: Pin 1+, Pin 1–
• Height: 2.56" (65.1mm)
• Width: 17.25" (438.1mm) / 18.88" (479.4mm) with rack ears
• Depth: 5.87" (149.2mm)
• Weight: 7.05 lbs (3.2 kg)
• Shipping Weight: 8.82 lbs (4 kg)
• Country of Origin: Canada
• Part Number: 4K-2