The LS1c is Grimm Audio’s latest flagship active loudspeaker system consisting of state-of-the-art speaker design and engineering, with reference quality monoaural DACs and amplifiers integrated into each speaker. As such, the LS1c only needs an analog or digital line source to perform. The LS1C is the third iteration of the Grimm Audio LS1, which was introduced In 2010. In 2017 we released the LS1be with Berylium tweeter and SB1 motion feedback subwoofer.  Now, after another seven years, Grimm Audio introduces the LS1c.

C is for Carbon

The TPCD Carbon Composite tweeter in the LS1c is developed by our supplier Seas in cooperation with Composite Sound, manufacturer of cutting edge “metamaterial” membrane technology. By means of advanced modelling and computer controlled layering of carbon sheets, the membrane resonances and breakup behavior are fully controlled. As a result a TPCD membrane has almost the same properties as the Berylium material we used in the LSbe. And this is very good news since the only manufacturer of Berylium membrane material recently stopped production… We placed the carbon tweeter in the proprietary aluminium waveguide that Seas developed for us, so the LS1c HiMacs version maintains the stunning ‘mounting screwless’ looks of the LS1be.

And That’s Just the Beginning

The LS1c project demonstrates our long-term dedication to the LS1. Virtually all elements of this platform are renewed:

– The electronics have been redesigned and now carry the latest generation Hypex NCore class-D amplifiers. A remotely controlled stand-by function is prepared.

– The firmware of the platform has been rebuilt from the ground up, which improves its stability and opens doors to future developments.

– The PC remote software for Windows and Mac computers has also been completely redesigned. It is made with an in-house developed cross-platform GUI library toolkit.

– Our method of individual loudspeaker calibration for crossover filters and driver aberration equalization has further been refined.

– With the knowledge we gained from developing the MU1 and MU2 FPGA Pure Nyquist filters, we were able to dramatically improve the crossover phase correction filters of the LS1 DSP. The sonic improvement is stunning.

The LS1 concept has proven itself for more than a decade and we are dedicated to keep supporting and improving it. We clearly demonstrated this by putting many years of development into the new hardware, firmware, software, DSP, EQ and calibration methods. The LS1 platform is now better and more stable than ever. It is not without reason that dozens of studios rely on LS1s on a daily basis. All software, firmware and DSP improvements will become available to every Grimm Audio LS1 customer as a free update around this summer.

Features

• Unique wide dispersion Beryllium 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
• 5 year limited warranty