ASP.4 for LX521.4 Loudspeaker

ASP.4 for LX521.4 Loudspeaker
Pure Analog

The ASP.4 circuit, designed by Siegfried Linkwitz, replaces the DSP in an LX521.4 speaker system. With an input from an analog source, it means that the entire signal chain can be purely analog rather than converting from A to D and back again. The ASP.4 was tested by Siegfried Linkwitz and has replaced the miniDSP in his system.

For more information about Linkwitz LX521.4 Loudspeakers as well as other Linkwitz projects, please visit

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