The Alto Sub-chassis is the core of the Serene upgrades. Machined from aluminium and incorporating our unique honeycomb design, it has been designed to be truly rigid whilst lightweight, to maintain balance.

When designing the Alto Sub-chassis, we closely measured an all-in-one sub-chassis with the aim to maintain the same tolerance between the armboard and the sub-chassis.

Our goal was to achieve the best of both worlds, the flexibility of choice with two separate components yet maintain the tight tolerances and rigidity provided with an all-in-one. This posed our biggest engineering challenge.

The challenge resulted in the addition of our new Precision Location Rods.* The combination of the machined parts with added rods provided the key tolerances and rigidity achieved in an all-in-one.

The pairing of the Alto Sub-chassis and Alto Armboard really is formidable and designed to rival all-in-one sub-chassis’ of every calibre.

Achieving a consistent centre of gravity for the LP12 is critical for the needle to “play true.” The Alto Sub-chassis has varying hexagonal pocket depths, spreading the weight perfectly to obtain the centre of gravity the LP12 needs. In the pockets are AVDC inserts, with the purpose of trapping any masking vibrations quickly and dispersing this energy as heat.

*Included when the Alto Sub-Chassis and Alto Arm board are purchased together.