Black Lion LS-4 – Compact Line Switcher for Professional Audio Applications

The Black Lion Audio LS-4 is a versatile and reliable line switcher that performs exceptionally well in both home studios and professional recording environments. Designed for flexible stereo signal routing, it allows easy and fast switching between various output devices. With its fully passive design, the LS-4 doesn’t alter your audio quality and preserves the original signal. It’s a perfect solution for sound engineers, producers, and audio professionals who demand precision and control.

Product Features

• Fully passive design – no power required, no coloration to the signal
• Compact format – fits into any studio setup
• 2 stereo inputs and 8 outputs (4 stereo pairs) – maximum flexibility
• High-quality ¼” TRS connectors – durable and reliable
• Each channel features internal ground-lift switches
• Sturdy steel chassis with a black anodized aluminum front panel

Flexible Signal Management – Without Compromise

The LS-4 allows simultaneous routing of the same stereo signal to four different output pairs, making it ideal for many studio scenarios. Use it as a central hub for monitor switching, as a headphone signal distributor during recording sessions, or for comparing different audio processors. Convenient physical buttons (A/B/C/D) let you switch quickly – no software needed.

It’s also great for live and broadcast setups – enabling fast switching between signal sources or speaker zones. Its compact form makes it suitable for desktops, pedalboards, and rack mounts.

Applications

• Monitor Switching – connect up to three pairs of monitors + a subwoofer
• Headphone Signal Distribution – feed multiple headphone amps from one source
• Effect Chain Testing – A/B different effect units quickly
• Parallel Processing – send signal to four different processors at once and record them all in parallel
• Live and Broadcast Use – ideal for switching sources on the fly

Technical Specifications

• Inputs: 2x ¼” TRS stereo
• Outputs: 4 stereo pairs (A, B, C, D) via ¼” TRS
• Passive circuitry – no active electronics inside
• Internal ground-lift switches for each output
• Housing: steel chassis with anodized aluminum front panel
• Compact size – ideal for desktop or mobile setups
• Lightweight design (exact specs not provided)
• Color: matte black

Materials and Build Quality

The LS-4 features a rugged steel body with a black anodized aluminum front – ideal for demanding studio or live applications. Its high-grade TRS connectors ensure signal stability, long-lasting performance, and noise-free operation.

Included in the Box

• 1x Black Lion Audio LS-4 – Passive Line Switcher
• 1x User Manual (digital version)

Why Choose the Black Lion LS-4?

If you're looking for a reliable, passive device for routing and distributing stereo signals, the Black Lion LS-4 is the perfect tool. Its versatility, solid build, and transparent performance make it an essential piece of gear for studio, live, and broadcast work. Trust in pro-grade design, efficient signal control, and pure audio integrity – choose the LS-4 by Black Lion Audio.