Studio Reference Monitor RL 901K
Max SPL @ 1m: 112 dB
Bandwidth: 25 Hz - 20 kHz ±3 dB
Size (H x W x D): 550 x 500 x 430 mm
Weight: 48 kg
An active three-way monitor with a cardioid characteristic in the range of 30 Hz - 250 Hz, minimising the excitation of room modes by reflections from rear walls of listening rooms. The mid- and high-frequency range units are arranged coaxially with the long-throw bass driver, and have directivity indicies that accurately match the bass unit. The high-power long-throw bass driver is in a compact enclosure to achieve optimum impulse behaviour.
For main, or far-field monitoring in music and video production studios.
Studio Reference Monitor RL 903K
Max SPL @ 1m: 108 dB
Bandwidth: 35 Hz - 20 kHz ±3 dB
Size (H x W x D): 480 x 285 x 295 mm
Weight: 25 kg
An active three-way monitor with a cardioid characteristic from 35 Hz - 100 Hz, minimising reflections from rear walls of listening rooms and excitation of room modes. The coaxial mid- and high-frequency units use asymmetric construction to minimise internal short term reflections and complement the long-throw bass driver well to achieve an apparent and consistent point source. The high-power long-throw bass driver is in a very compact enclosure but nevertheless achieves a low frequency response right down to 35 Hz.
The coaxial driver system can be rotated through 90 degrees making the RL 902 equally suited to vertical or horizontal mounting. Fitted with a 3 channel integrated MOSFET amplifier and electronic crossover. A flashing LED signals when the overload limit is reached. Beyond this the output level is reduced by 20dB to avoid component overload. Infinitely variable low frequency controls are supplied for the two adjustable frequency ranges to match transfer characteristics to room acoustics.
Power dispersion optimised for mid- to far-field monitoring in music and Video production studios.
Studio Reference Monitor RL 922K
Studio Reference Monitor RL 944K
Studio Reference Monitors with cardioid bass range producing unprecedented control over monitor/room coupling characteristics

Max SPL @ 1m: 115-121 dB
Bandwidth: 30 Hz - 20 kHz ±3 dB
Size (H x W x D): 550 x 400 x 370 mm
Weight: 38 kg
Skilful design achieves convincingly low levels of non-linear distortion and coloration, and the system provides superior localisation behaviour. Fitted with a 3 channel integrated MOSFET amplifier and electronic crossover. An intermittent LED signals when the overload limit is reached. Beyond this the output level is reduced by 20dB to avoid component overload. Infinitely variable low frequency controls are supplied for the two adjustable frequency ranges to match transfer characteristics to room acoustics.
RL 922K1 variant available with detached amplifier and reduced enclosure height to suit installation in video walls and outside broadcast vans.
Three-way active monitor with unique cardioid characteristic in the range from 30 Hz - 100 Hz, minimising reflections from rear walls of listening rooms and excitation of room modes. The mid- and high-frequency range unit is arranged coaxially with the long-throw bass driver and has a directivity index that supplements the bass system superbly. The high-power long-throw bass driver is in a compact enclosure to achieve optimum impulse behaviour
Skilful design achieves convincingly low levels of non-linear distortion and coloration, and the system provides superior localisation behaviour. Fitted with a 3 channel integrated MOSFET amplifier and electronic crossover. A flashing LED signals when the overload limit is reached. Beyond this the output level is reduced by 20dB to avoid component overload. Infinitely variable low frequency controls are supplied for the two adjustable frequency ranges to match transfer characteristics to room acoustics.
Max SPL @ 1m: 112-121 dB
Bandwidth: 30 Hz - 20 kHz ±3 dB
Size (H x W x D): 477 x 350 x 310 mm
Weight: 30 kg
Power dispersion optimised for main monitors in music and Video production studios.
Power dispersion optimised for main monitors in music and Video production studios.
Studio Reference Monitor RL 933K
Three-way active monitor with unique cardioid characteristic in the range from 35 Hz - 100 Hz, minimising reflections from rear walls of listening rooms and excitation of room modes. The mid- and high-frequency range unit is arranged coaxially with the long-throw bass driver and has a directivity index that supplements the bass system superbly. The high-power long-throw bass driver is in a compact enclosure to achieve optimum impulse behaviour
Skilful design achieves convincingly low levels of non-linear distortion and coloration, and the system provides superior localisation behaviour. Fitted with a 3 channel integrated MOSFET amplifier and electronic crossover. An intermittent LED signals when the overload limit is reached. Beyond this the output level is reduced by 20dB to avoid component overload. Infinitely variable low frequency controls are supplied for the two adjustable frequency ranges to match transfer characteristics to room acoustics.
RL 933K1 variant available with detached amplifier and reduced enclosure height to suit installation in video walls and outside broadcast vans.
Max SPL @ 1m: 110-113 dB
Bandwidth: 35 Hz - 20 kHz ±3 dB
Size (H x W x D): 481 x 285 x 330 mm
Weight: 24 kg
Three-way active monitor with unique cardioid characteristic in the range from 35 Hz - 300 Hz, minimising reflections from rear walls of listening rooms and excitation of room modes. The mid- and high-frequency range unit is arranged coaxially with the long-throw bass driver and has a directivity index that supplements the bass system superbly. The high-power long-throw bass driver is in a compact enclosure to achieve optimum impulse behaviour
Power dispersion optimised for Nearfield monitoring with narrower positioning. Especially interesting for OB van applications
Skilful design achieves convincingly low levels of non-linear distortion and coloration, and the system provides superior localisation behaviour. Fitted with a 3 channel integrated MOSFET amplifier and electronic crossover. An intermittent LED signals when the overload limit is reached. Beyond this the output level is reduced by 20dB to avoid component overload. Infinitely variable low frequency controls are supplied for the two adjustable frequency ranges to match transfer characteristics to room acoustics.

Download RL 901K documentation and specification
Download RL 903 documentation and specification
Download RL 922K documentation and specification
Download RL 933K documentation and specification
Download RL 944K documentation and specification
News and Documents
Download Line Up review of the Geithain RL 944K1


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accurately to what is happening -
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