Monitor Loudspeaker with Acoustic Transmission Line R50

The R50 Monitor Loudspeaker features the KEF B139, low frequency driver, active from approximately 30 to 400 Hz and  is loaded with a 2 Metre, long haired lambs-wool damped, tapered labyrinth. Above it, the KEF B110 mid-range driver, active from 400 Hz to 3 kHz mounted in a physically separate damped tapered pipe, to avoid intermodulation distortion. Next a KEF T27,  medium frequency unit with pressure driven dome diaphragm ensuring wide dispersion of frequencies from 3 to 10 kHz. Finally, a STC 4001G1, high frequency unit as above to carry the response from 10 kHz to beyond 20 kHz.

Power Handling: 25 Watts (RMS)

Impedance: 8 Ω

Crossover: 400 Hz, 3.0 kHz, 10.0 kHz.

Frequency Response: 25 Hz - 20 kHz

Crossover Frequencies: 400Hz, 3kHz, 10kHz

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