FBT KEIRON 8S White 8" Passive Subwoofer 300W RMS

The FBT KEIRON 8S White is a stylish and ultra-compact passive subwoofer engineered to extend the low-end performance of KEIRON and CANTO loudspeakers in premium indoor installations. Combining performance and visual refinement, its birch plywood cabinet is finished in elegant white, with a scratch-resistant coating that seamlessly integrates into upscale environments such as restaurants, galleries, and retail spaces.

The KEIRON 8S houses a high-excursion 8" transducer with a 1.5" voice coil, offering a frequency response of 42Hz–300Hz and a maximum SPL of 117dB. With a recommended external amplifier delivering 300W RMS, this subwoofer ensures clear and powerful bass reinforcement for music and speech. While it delivers precision performance, it requires external DSP processing as there is no internal passive crossover.

It can be discreetly mounted to walls using an optional flush-mount bracket or placed on the floor using its removable feet. Connections are handled via a 4-pin Euroblock input and thru for flexible daisy-chaining.

Features
Ultra-compact 8" passive subwoofer for fixed installations
White birch plywood enclosure with impact- and scratch-resistant finish
High excursion 8" woofer with 1.5" voice coil
Delivers up to 117dB SPL with 300W RMS amplifier power
Omnidirectional dispersion
External signal processing required (no internal crossover)
4-pin Euroblock connectors for input and output
Removable feet for ground stacking
Optional flush-mount bracket for wall installation
Available in black and white finishes

Specifications
Configuration: Single-driver subwoofer
Frequency Response: 42Hz – 300Hz
Low Frequency Woofer: 8" (1.5" voice coil)
Maximum SPL (Continuous/Peak): 114dB / 117dB
Dispersion: Omnidirectional
Crossover Frequency: External only
Recommended HP Filter: 38Hz, 24dB/Oct
Recommended Amplifier Power: 300W RMS
Long Term Power Handling: 150W
Short Term Power Handling: 600W
Sensitivity (@1W/1m): 89dB
Nominal Impedance: 8 Ohm
Input Connector: 4-pin Euroblock (In & Thru)
Net Dimensions (W x H x D): 390 x 190 x 390 mm
Net Weight: 8 kg
Transport Dimensions (W x H x D): 460 x 225 x 460 mm
Transport Weight: 9.5 kg