Grimm Audio LS1c Loudspeaker

What if a loudspeaker was not just a passive box, but a complete, perfectly integrated playback system where every single element works in perfect harmony? This is the revolutionary vision behind the Grimm Audio LS1c. As the flagship of the LS1 series, the LS1c is the ultimate expression of this philosophy, a fully active loudspeaker that contains its own DSP, D/A converters, and NCore power amplifiers. At its heart is a groundbreaking TPCD Carbon Composite tweeter, developed with SEAS, and an advanced DSP crossover with phase correction filters derived from the legendary MU1. The result is a level of transparency, phase coherency, and tactile imaging that is simply unattainable with separate components. This is not just a loudspeaker; it is a direct window to the original recording.

Key Features

• Fully Integrated Active System: A complete playback system with internal DSP, D/A converters, and NCore power amplifiers for the purest possible signal path.
• Revolutionary TPCD Carbon Tweeter: A unique, wide-dispersion tweeter developed with SEAS, providing incredible integration and a seamless, "as one" sound.
• Advanced DSP Crossover: A powerful DSP performs the crossover with ultimate precision and features advanced phase correction filters derived from the MU1 for extraordinary time coherency.
• Unidirectional Sound Field: The speaker is designed to be unidirectional down to 250 Hz, dramatically reducing unwanted room reflections for a clearer, more focused stereo image.
• Superb Off-Axis Response: Delivers a consistent, high-quality sound over a wide listening area, not just in a single "sweet spot."
• Digital and Analog Inputs: Accepts both digital and analog sources for complete system flexibility.
• High-Resolution Playback: Supports 64/128 fs DSD and DXD playback via the optional LS1i USB interface.
• Seamless Subwoofer Integration: Features a filtered analog subwoofer output designed for perfect integration with the SB1 Digital Motion Feedback subwoofer.
• Ultra-Low Distortion Amplification: Employs super-low distortion NCore class D power amps to drive the woofer (250W) and tweeter (100W) with absolute control.
• Elegant Cabinetry: Available in a stylish ‘Hi-Macs’ synthetic stone finish, traditional bamboo veneer, or a classic lacquer look.
• Remote Controllable: Volume and source selection can be controlled via the optional LS1r remote controller.

The "One System" Philosophy

The LS1c is built on a radical principle: ultimate transparency can only be achieved when the entire playback chain is a single, optimized system. By integrating the DSP, D/A converters, amplifiers, and drivers into one chassis, Grimm Audio's designers have complete control over every interaction. This allows them to correct for nonlinearities in a way that is simply impossible with separate components. The result is an incredibly linear amplitude and phase response, vanishingly low distortion, and a sound that is so coherent and seamless it sounds as if it's emanating from a single point in space.

The Revolutionary Carbon Tweeter

The flagship LS1c is defined by its groundbreaking TPCD Carbon Composite tweeter. This driver, developed in cooperation with SEAS, offers a uniquely wide dispersion pattern that contributes to the speaker's vast, stable, and "tactile" stereo image. This is a key component in the LS1c's ability to sound so completely integrated across the entire frequency band. The speaker's clever acoustic design maintains this controlled, unidirectional dispersion down to 250 Hz, meaning you hear more of the music and less of your room's acoustic signature, resulting in a dramatic increase in clarity and focus.

The Brain: Advanced DSP Correction

The LS1c's digital signal processor is far more than a simple crossover. It is the brain of the entire system, meticulously correcting the frequency curve to be perfectly linear. More importantly, it applies advanced phase correction filters, a technology derived from the development of the legendary MU1 music player. This extraordinary phase coherency is the secret to the LS1c's uncanny ability to reproduce the subtlest rhythmic structures and microdynamics in a recording. It's this level of temporal accuracy that makes the sound so natural, realistic, and completely non-fatiguing, inviting you to listen for hours on end.

The Foundation: Digital Motion Feedback Bass

While the LS1c is a stunning performer on its own, it is designed for a seamless partnership with the SB1 subwoofer. The LS1c provides a dedicated, filtered analog output to drive the SB1, which features its own revolutionary Digital Motional Feedback (DMF) technology. This system lowers the subwoofer's distortion by an incredible 30 dB and pushes its resonance frequency below 20 Hz. When combined, the LS1c and SB1 create a truly full-range system that delivers bass with a level of detail, control, and authority that is simply unparalleled.

The Listening Room Difference

When you shop with The Listening Room, you get more than just gear. As a third-generation, family-run business with a passion for music and decades of experience, we offer personalized service that goes far beyond the sale. Call, text, or email, and you’ll get a real human who knows this equipment inside and out. From in-store demos to curated home system design and wide-radius delivery, we’re here to help you get the absolute best out of your purchase.

Specifications