Rare high-end 'speakers from Victor's "Select" series which also included the P-L10 and M-L10 pre/power combo, QL-A75 turntable, MC-L1 and MC-L10 cartridges. The "L" stands for Laboratory.

Blue baffle apart, the Zero 10 is less conventional than it may seem but it does conceal its key features very well indeed :

If dressed in wood, the enclosure does in fact hold a frame made of inert composite material designed with the aid of a "modal analysis" computer program ; its shape ("super-elliptical") helps prevent enclosure disformation and standing waves.
And the drivers aren't white just to look classy : they are in fact coated with fine ceramics by way of "Physical Vapor Deposition" and "Plasma Blast" processes.

The woofer is secured on both front and back sides of the enclosure ; the super tweeter is a highly efficient and horn-loaded Dyna-Flat ribbon, allowing frequency response up to... 100kHz !

Nothing really ground-breaking, no revolution, just a careful blending of high-end elements which Victor would carry over, ever refining the blend, to acclaimed and cost-no-object units such as the Zero L1000, SX-900 and later Spirit SX-1000 variants.

This post was made with a 1982 german audio catalog and the luxurious USA "L10" catalog, also from 1982. I have more of course but that will make for an update ;-)