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The ELAC Navis ARB-51 is a three-way powered/active bookshelf loudspeaker in ELAC's Navis series, sharing its core driver platform and tri-amp analog amplification system with the ARF-51 floorstanding model. It uses a coaxial driver combining a 1-inch soft-dome tweeter concentrically mounted in a 4-inch aluminum midrange, partnered with a separate 5.25-inch aluminum woofer, all in a bass-reflex (rear-ported) cabinet for extended low-frequency response. Each of the three drivers is powered by its own dedicated analog amplifier (160 W BASH for the woofer, 100 W BASH for the midrange, and 40 W Class AB for the tweeter), delivering 300 W total per speaker and maintaining a fully analog signal path with no onboard DAC or DSP. Rear-panel controls include RCA/XLR/wireless input selection, gain setting, high-pass filter options for subwoofer integration, and analog EQ contour switches for low, mid, and high frequencies to better match different room placements and acoustics. The speaker is known for its rich, full-bodied, slightly warm midrange and high resolution, making it especially strong with vocals and detailed music reproduction. The ARB-51 incorporates ELAC's AirX² wireless capability when used with the optional Discovery Connect transmitter, enabling wireless streaming of sources such as Spotify Connect, AirPlay, Bluetooth, Roon, and ELAC's Discovery ecosystem. It is offered in Gloss Black and Gloss White finishes, with a clean, screw-free front baffle and compact enclosure dimensions suited to stands or shelves.
Driver and acoustic performance characteristics
Driver configuration and enclosure design
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
Components that show up alongside the Navis ARB-51 Active in real systems. A verdict means the pair has been checked for compatibility and headroom — open it to see how the two get along.
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The UBR62's low-frequency extension is 41 Hz against the Navis ARB-51 Active's 44 Hz and its woofer 6.5" against 5.25". Both share sensitivity (85 dB) and ways (3).
The Concerto Home's sensitivity is 88 dB against the Navis ARB-51 Active's 85 dB, its low-frequency extension 40 Hz against 44 Hz, its woofer 7" against 5.25", and its high-frequency extension 20 kHz against 28 kHz.
The Vestia N°1's sensitivity is 89.5 dB against the Navis ARB-51 Active's 85 dB, its high-frequency extension 30 kHz against 28 kHz, its woofer 6.5" against 5.25", and its low-frequency extension 56 Hz against 44 Hz.
The Q3 Meta's sensitivity is 87 dB against the Navis ARB-51 Active's 85 dB, its low-frequency extension 49 Hz against 44 Hz, its woofer 6.5" against 5.25", and its high-frequency extension 20 kHz against 28 kHz.
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