ULTIMATE Complete Set

Structural upgrade for Linn LP12 turntables

RRP $2,095.00
SAVE $225.00 (11%)


About 2 weeks from order.

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Pickup from Coopers Plains - $0.00 (ETA: 1 days)
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SERENE is a game changing series of upgrades for Linn owners to enhance the organic sound of the LP12, whatever the model, whatever the age. Designed, developed and manufactured in the UK, the result is SERENE. Exceptional upgrades for the LP12.

Whichever upgrade you choose, the objective is the same. The removal of vibrations and colourations within the LP12. A lower noise floor means you hear more detail, more focus and a greater soundstage. Most importantly this means increased ability to follow the tune. Simply put, more musicality.

Our aim has been to develop the highest quality affordable upgrades. Stack Audio doesn’t believe high-end hi-fi always has to come with high-end prices.

SERENE is available in complete sets, staged upgrades or individual components to suit your needs.

The SERENE project is based on a fundamental understanding of the effects of vibration and acoustic resonance on sound quality. A combination of objective analysis using the latest software and subjective listening with independent experts is applied to every product from Stack Audio.

Replay starts with the vibration of the stylus in the groove. Any vibration picked up other than from the groove and the stylus is distortion and this distortion masks detail in the musical signal. This is then amplified by the rest of system. The immediate dissipation of vibration is the primary objective of the SERENE project. 

We trialled many different materials throughout the SERENE project, but one stood out: Solid Surface. This material is a composite of acrylic polymer, aluminium and minerals making Solid Surface profoundly inert and stable. As a composite it resonates significantly less than aluminium, steel or wood and is denser than acrylic alone.

The SERENE Sub-Chassis, Cross Brace, Arm Board, and Base Board are all machined in-house from Solid Surface by Stack Audio.

AVDC is used in the SERENE Cross Brace, Top Plate and the optional 3-layer Ultimate feet for the Base Board. This advanced material acts as a laminate, trapping and dissipating vibration immediately by turning it into heat. AVDC is a key part of the system of SERENE upgrades focused on the dissipation vibration within the turntable.


The sub-chassis is the backbone of the LP12 and has been at the core of the SERENE project development. Refined through 3 phases, the SERENE Sub-Chassis is machined from 12mm Solid Surface with a honeycomb shape on the underside that provides maximum structural integrity and even dissipation of vibrations. Varying machined pocket depths ensure this highly complex form has the mass and balance of the original sub-chassis. Improving the performance of the suspended design of LP12 is the aim - enhancing the organic sound of the Linn not detracting from it.

The SERENE Sub-Chassis can be fitted to any LP12 and works with original arm boards as well as SERENE Arm Boards. The combination of SERENE Sub-Chassis and a SERENE Arm Board ensures the vital connection between the sub-chassis and the arm board is assured over time. No loosening of the fixings maintains a rigid base for the arm and the cartridge to do their job. Stack Audio believes that the SERENE Sub-Chassis and the SERENE Arm Boards perform at the very best when paired together.

Made from Solid Surface with threaded brass inserts, the underside of the SERENE Arm Board is hollowed out to ensure a perfect centre of gravity and minimal contact with the sub-chassis thereby minimising vibration transmission. Removal of the last colourations and vibrations at the final point of contact with the tonearm ensures that the SERENE Arm Board allows your preferred arm to reveal more detail with increased focus.

Commensurate with their performance SERENE Arm Boards are finished in a luxurious deep gloss piano black. The SERENE Arm Boards are available in 6 standard fittings for Linn, Rega, SME and Naim plus the option of custom fittings for any other tone arm.

Stack Audio is unique in offering an upgrade for the Linn cross brace made from 8mm Solid Surface and AVDC with 6 rubber mounts for the power supply. The SERENE cross brace stiffens the plinth and, crucially, isolates vibration from the spindle and motor to the power supply oscillator. The purpose of the oscillator is to control the timing of the motor. Any vibration that reaches the oscillator will alter this timing to the detriment of the performance of the music.

Like the SERENE Sub-Chassis, the SERENE Cross Brace has been refined through 3 phases. A straight forward replacement for the original Linn cross brace, the SERENE Cross Brace comes with all necessary fixings.

The top plate is the most connected component within the LP12. It is harbouring vibration transmitted from the motor, the spindle and plinth. It has the largest, thinnest surface area in an LP12 picking up vibration in the air caused by the speakers and acting as pipe transmitting it to sub-chassis and spindle. To counter this Stack Audio offers you a choice of two significantly enhanced top plates: the SERENE and the ULTIMATE. Both incorporate our AVDC vibration trap, are precision cut to fit flush and come with all the necessary fixings. To support different customer requirements, we offer both top plates with and without a switch cut-out and in both standard and 7 o’clock motor positions. 

The ULTIMATE Top Plate is made from aluminium and has a deeper frame underneath with the AVDC layer between. The ULTIMATE frame is precision machined on both sides and will ensure the top plate never warps. With hexagonal pockets and 4 extra contact points, the ULTIMATE Top Plate builds upon the SERENE Top Plate with even more secure fixings, rigidity and enhanced vibration dissipation. As standard, the ULTIMATE Top Plate is anodised aluminium with a choice of black or silver finishes. Alternatively, if you prefer, we can supply a brushed stainless steel Top Plate with the ULTIMATE frame for the classic LP12 look.


The ULTIMATE feet are made from wood with four layers of AVDC in addition to the Sorbothane layer. It also comprises of two metal parts. Fully adjustable, the ULTIMATE feet provide the maximum level of vibration dissipation between the LP12 and its stand.




Shipping Weight 4.0000kg
Shipping Width 0.450m
Shipping Height 0.060m
Shipping Length 0.350m
Shipping Cubic 0.009450000m3

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