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Voxativ talks DSP optimisation, Bluetooth streaming

  • Digital Signal Processing. We might expect Voxativ, a Berlin-based loudspeaker manufacturer steeped in the heritage of single/compression drivers, to invite it to talk to the hand. And yet at this year’s Norddeutsche Hifi-Tage Voxativ could be found using DSP – inside a black box and before the amplification stage – to squeeze additional low-frequency extension from their Hagen; standmounts that otherwise call for subwoofer assistance.

    The Hamburg-based controversies didn’t end there: the new box’s DSP brain was being fed via Bluetooth, its TOSLINK digital and analogue/phono inputs ignored. And what’s that we spy behind the hi-fi rack? A switch-mode power supply? Ahem.


    According to company CEO Holger Adler, the only reason we’re not listening to Class D amplification as I Bluetooth stream DJ Hell and Nicolas Jaar from my aptX-capable LG V30 to Voxativ’s new black box is that Class D didn’t sound very good during the early stages of product development. Adler tried it and he didn’t like it.

    The latest prototype contains a 20wpc Class A/B amplifier.

    That each Hagen high-gloss cabinet houses only one AF-1n widebander – no crossover required – and is juiced directly by the DSP-corrected amplification, albeit via speaker cable, suggests one half of a traditional 2-way active loudspeaker (where the second half is surplus to requirements).

    Adler takes us deeper on the Hagen Absolut system in this video interview:

    The Hagen Absolut system – loudspeakers and single box of electronics – will sell for US$7999 when it goes on sale later this year. Optional speaker stands will sell for US$1198.

    Further information: Voxativ

    Written by John

    John currently lives in Berlin where he creates videos and podcasts for Darko.Audio. He has previously contributed to 6moons, TONEAudio, AudioStream and Stereophile.

    Darko.Audio is a member of EISA.

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