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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 Darko

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

    Darko.Audio is a member of EISA.

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