Phaselinear digital Reference Monitor



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.


With the introduction of the first FIRTEC controlled monitor KSdigital changed the kind of building professional monitors. The traditional way is the linearisation of the ampitude response. With the FIRTEC(TM) digital signal processing our attention is to reproduce a correct impuls response. This FIR-equalisation means a flat ampitude response and a flat phase response, which means a correct signal with all details in tone and time and stereo image. The products of the A-Line are the state of the art monitors for all applications: the bridge monitor in nearfiled application as well as the In-wall-solution for the big control room.

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The ADM25 is conceived as a stand speaker to be set up directly behind the mixing deskor the work station - work place. Both the emitting properties of the chassis workingin the ADM25 and the acoustic baffle of the stand casing tilted at 5° allow excellentuse of the ADM25 in the near and midfield area. A D’Apollito arrangement with verystrongly coupled sound centres of the individual chassis, connected with the high rangewave guide concentrate the energy in the area 90°x 60° (H x V). In this way the monitor room is lessstimulated and therefore control is significantlyincreased. The acoustic baffle tilted at 5° decreasesreflections on the desk or work space and preventsunwanted excessive presence. The FIRTEC™ tech-nology linearises frequency and phase response atthe listening place and therefore ensures a tonallyand temporally correct, neutral playback of theacoustic signal. The freely adjustable parametricEQ’s as well as high and low shelving filters allowa precise adjustment to the set up position andthe acoustics of the listening place. This completepackage ensures true to detail, time correct infor-mation at the work place of the engineer

AD / DA converter 24 bit sigma delta, 64 x oversampling
digital IN, OUT AES3 format , 32 – 192KHz
analog IN, OUT XLR-symmetric, active bypass connector
process FIRTEC™ equalization, FIR-crossover, limiter,
6 user filter
patent: 19823110
room equalization 5 peakfilter and FIRTEC™ system equalization
chassis 1'' radiator,
2 pcs. 6.5'' carboncone
amplifier 250 W / 250 W peak
SPL 120 dB peak
remote control RC-100
frequency range 34 - 22000 Hz (+/- 3 dB)
dimensions 142 X 30 X 33 cm 19.7 kg