The only linear phase mastering monitor utilizing cylindrical wave technology, worldwide.



KSdigital manufactures each of its loudspeakers by hand in its factory Saarbrücken/Germany. Each loudspeaker is measured individually (IFM) and linearized in frequency and phase. This ensures the unrivalled correct reproduction of the music signal.


Developed and designed for use in the most demanding of mastering studios, the LineMaster is an uncompromising Loudspeaker system. The highest possible sound neutrality utilizing the linear phase and value FIRTEC™ filter. The dynamic membrane control (DMC™) permits a lively impulsive base, a linear phase and no build up or decay oscillations of the membrane. Also the controlled sound emission of the near field extension technology in NEXT™ permits highest control, especially in the mastering area. The oversized power reserves of the output stage with 400W / 200W / 200W ensure that the conversion of the electrical signal occurs with the lowest possible level of distortion. Especially when mastering, one needs the assurance that the reproduction of the music is exact and unadorned, with the complete frequency range from the highest of highs to being able to perceive the deepest rumble of the airconditioning in a symphony orchestra.

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The Acoustic advantages of the Linemaster:

- cylindircal wave for extended nearfield
- more direct sound, less refelctions in hotspot, more control in mastering process
- phasenlinear reproduction
- minimal latency (< 5msec)
- 5 userprogrammable EQs (by software or optional RC-100 hardware controller)
- switchable between analogue or digital input
- volume and all other parameters remotable


AD / DA converter 27 bit sigma delta, 64x oversampling
digital floating point processor 32 bit floating point, 1500 dB dynamic range
digital IN, OUT AES3 format, 32 – 192 KHz
analog IN, OUT XLRsymmetric, active output
DSP 60 MHz 32 bit floatingpoint, 1500 dB dynamik
process FIRTEC™ equalization, 2 difference FIR crossover speaker timealignment, limiter, 2 FIR-presets 3 userprogrammable peakfilter with frequence, gain and peakcontrol
frequency range 20Hz-22KHz
room equalization low-, highshelving,
3 param EQs, distance shift, phase reverse,
all parameter free controlable by RC-100
chassis two 8” DMC carboncone units,
four 6.5” midrange carbonbone
1” radiator on NE-X-T adapter (Pat.:DE102015102643A)
amplifier 350W / 200W / 100W MOSFET technology
SPL 125 dB peak
dimensions 170 X 30 X 33 cm, 68 kg