These are the OLi4 floorstanders, new from Roth Audio and selling for £299 when they go on sale next month.
The speakers combine twin 17cm woven fibreglass hybrid woofers and a 25mm soft-dome tweeter, stand almost a metre tall and are of a two-and-a-half-way design.
The speaker is designed for high rigidity, and uses the company's DALtech technology, the acronym standing for 'Dead as Lead'. This aims to aims to eliminate distortion – caused by the speaker's own energy – with the strategic placement of acoustic damping within the cabinet.
The sensitivity is 91dB/W/m, the impedance 8ohms and maximum power handling is 200W. The speakers are finished in black and silver, with a gloss base and matching top panel.