Grimm Audio LS1c Loudspeakers

Grimm Audio LS1c Loudspeakers

The LS1c is the flagship of Grimm's LS1 active loudspeaker series. It is named after the revolutionary TPCD Carbon Composite tweeter that was developed in cooperation with driver manufacturer Seas. Even more important is that Grimm rebuilt all elements of the LS1 design from the ground up: the electronics with latest generation amplifiers, the audio DSP code, the computer aided calibration method, the firmware and the PC/Mac software that controls the entire system. To pick just one example, with the knowledge gained from developing the MU1 and MU2 FPGA Pure Nyquist filters, Grimm were able to dramatically improve the crossover phase correction filters of the LS1c’s DSP.

As result, the LS1c offers an incredible level of integration over the full frequency band – a loudspeaker has never sounded so much ‘as one’. Its rendering of the stereo image appears more tactile than ever, its capability for microdynamics exposes unheard details and its extraordinary phase coherency reveals the subtlest rhythmic structures. At the same time the natural, non-fatiguing sound of the LS1c invites one to long listening sessions. 

At the low end of the frequency spectrum, the elegant Digital Motional Feedback SB1 subwoofer offers unparalleled bass. Grimm's unique motion feedback technology lowers the distortion by 30 dB and places the resonance frequency below 20 Hz. Bass has never sounded so detailed and controlled.

A natural companion for the LS1c is the MU1 music player that allows control of all loudspeaker parameters. But an LS1c is equally happy when combined with the LS1r controller and the LS1i USB interface. The cabinet can be ordered in a stylish ‘Hi-Macs’ synthetic stone finish, or in our traditional bamboo veneer or lacquer look.

• Unique wide dispersion TPCD Carbon tweeter
• Unidirectional down to 250 Hz
• DSP controlled frequency curve
• Well-behaved off-axis response
• Digital and analog audio inputs
• 64/128 fs DSD and DXD playback via USB interface 
• Filtered analog subwoofer output for SB1
• Remote control of volume and source
• Super low distortion NCore class D power amps

Specification