It is VERY hard to get old school horn system sound from commercial products that are not extremely expensive. The better modern systems I've heard are custom-built using either vintage drivers or extremely expensive modern drivers.
The Volti speakers are not in the same league, to me, as vintage-based systems. But, they still sound very good for someone looking for the liveliness of horn type systems and value the great wood working of Volti. There are no speakers, regardless of price that are strong on all aspects of performance; all have certain areas where they are not as strong as other aspect of performance. To me, the Razz exhibits a bit of discontinuity between the bass and upper end sound. Still a great performer for the money, but, I would listen for this to determine if it is a big deal.