The SERENE Project

SERENE from Stack Audio is a game changing series of upgrades for Linn owners. Enhance the organic sound of your LP12, whatever the model, whatever the age. Designed, developed and manufactured in the UK, the result is SERENE. Exceptional upgrades for the LP12.

Sub–Chassis. Arm Board. Top Plate. Base Board. Whichever upgrade you choose, the aim is the same. The removal of vibrations and colourations from 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.

Core Design Philosophy

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. The world of LP12 upgrades can be confusing. Please feel free to give us a call to get better understanding of upgrade paths, installation e.t.c. 01392581089

Innovative Materials and Design

Solid Surface

We trialled many different materials throughout the SERENE project, but one stood out: Solid Surface. A composite of acrylic polymer, aluminium and minerals makes Solid Surface profoundly inert and stable. It resonates significantly less than metal or wood and is denser than acrylic alone.

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


The Advanced Vibration Dissipation Composite is used in the SERENE Base Board, Top Plates and ULTIMATE feet for the Base Board.

This advanced material acts as a laminate, trapping and dissipating vibration immediately. AVDC is a key part of the system of SERENE LP12 upgrades targeting all sources of vibration affecting the turntable.

The SERENE LP12 upgrades are designed by us and manufactured in the UK sharing production facilities with products for aerospace, medical and military applications.

SERENE Sub-Chassis

The sub-chassis is the backbone of the LP12 and is the core of the SERENE project. Refined through 3 phases, the SERENE Sub-Chassis is machined from Solid Surface with a honeycomb structure on the underside for maximum strength and dissipation of vibrations. Varying pocket depths ensure this complex form has the mass and balance of the original sub-chassis. Improving on the performance of the suspended design of the LP12 is the aim, enhancing the organic LP12 sound

The SERENE Sub-Chassis can be fitted to any LP12 and all arm boards. The combination of the Stack Audio SERENE Sub-Chassis and Arm Board however ensures this vital connection is assured over time – they work at their best when paired together

SERENE Arm Board

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 but secure contact with the sub-chassis. Removal of the vibrations at final point of contact with tonearm ensures the SERENE Arm Board lets your preferred arm reveal more detail and more focus.

Reflecting their musical performance, SERENE LP12 Arm Boards are polished to a high gloss piano black finish. They are available in 6 standard fittings for Linn, Linn Ittok, Rega, Rega 3, SME.

Top Plates

The top plate is the most interconnected part of the LP12 and is subject to both internal and external vibrations. Like all the SERENE upgrades, the Stack Audio top plates are designed to be rigid and stable and dissipate vibration. There are two levels of top plate to choose from, SERENE and ULTIMATE. Both feature a sandwich construction incorporating a layer of AVDC and are precision cut to fit flush to the plinth.

SERENE Top Plate

The SERENE Top Plate is machined from high grade brushed stainless steel and is a direct replacement for the LP12 top plate. Bonded to the underside with AVDC is a recessed 1.5mm frame which ensures the top plate is less prone to warping, is more rigid and sits flush with the plinth


The new ULTIMATE FF Top Plate is machined from aerospace grade aluminium. It has a thicker body with inset frame for ultimate rigidity. The custom fixings are designed to ensure precise alignment. It is available in black or silver anodised aluminium


SERENE Baseboards

For the Serene Base Boards Stack Audio has focussed on combining sonic improvements with making it simple to keep your LP12 set up to sound its best. Vibration dissipation is core to both base boards along with adjustable feet and easy access to adjust the sub-chassis springs. Both sit flush with all plinths and are compatible with all internal power supplies and DC motor positions.​ There are two versions to chose from: SERENE and ULTIMATE.


SERENE Baseboard

The all new SERENE Base Board is constructed from 2 layers of precision cut aluminium, joined together with a layer AVDC for effective vibration dissipation. It comes with 3 height adjustable aluminium and Sorbothane feet.

ULTIMATE Baseboard

The ULTIMATE Base Board is machined from high mass Solid Surface for the maximum dissipation of both internal and external vibrations.​ It features unique 6 layer feet incorporating AVDC. The ULTIMATE Base Board provides the highest level of isolation for your LP12​ ​



  • Adrian M (Australia): Ultimate Full Set

    "I particularly enjoy being able to follow vocals, even when buried in the music mix, hearing far more emotion in the the phrasing of the lyrics. The soundstage is solid, deep and wide, base notes really are notes - powerful and easy to differentiate. The treble is spectacular" Read More
  • Trevor C (UK): Top Plate, Sub-Chassis, Arm Board, Base Board

    "Having taken the plunge and purchased the Stack Audio top plate, subchassis, armboard and base board I can honestly say the quality of manufacture and attention to detail is absolutely first class." Read More
  • Keith G: Sub-Chassis, Arm Board

    "Solid Surface Sub-Chassis and Arm board - wow !! What a difference - gone from a Fiesta to a Ferrari !! Many thanks. To give the LP12 a last chance and tempted by the price and concept I decided to give the Solid Surface combination a punt - turns out a great move - best value and most significant upgrade I have ever made." Read More
  • Andrew T: Sub-Chassis, Arm Board

    "The original Linn sub chassis did not resolve complex mid-range recordings such as Abba. With the Serene Sub-Chassis every word was audible and there was space between the instruments. The arm board fitted very securely and looks and feels a million dollars." Read More
  • Tony P: Sub-Chassis, Arm Board, Cross Brace (Platform Set)

    "I’m noticing far better soundstaging in all three dimensions where recorded and I’m hearing more of the engineering decisions made during recording and mixdown. Tonal balance has been largely unaltered. The general effect if I may use a video analogy is that the systems’ contrast has been turned up and made more vivid allowing expressions in the music that are often lost in greyness to emerge and make musical sense." Read More
  • Ross B (Snowdonia, UK): Sub-Chassis, Arm Board, Cross Brace (Platform Set)

    "In terms of sound quality there are huge improvements, top end is clearer and more detailed and lower registers are much more defined and bass hits you in the chest! However midrange is detailed and retains some of the 'warmth' that the LP12 is renowned for and something I like personally, female vocals in particular are excellent." Read More
  • Mike W (USA): Cross Brace

    "While installing I noticed that the new braces are much more rigid, are dead to the "rap" test and fit more tightly; the stock ones "ring" and flop around until bolted down. During playback, on both decks the most noticeable difference was "blacker blacks"; not so much more detail as less background grunge competing with detail." Read More
  • Mathew S (Yorkshire, UK): Sub-Chassis, Arm Board, Cross Brace (Platform Set)

    "The difference is really quite stark, whilst trying to avoid the usual hi-fi cliches it sounded like there was more headroom and the individual instruments have more space, noise that I hadn’t realised was there was now clearly absent.I think they have a product here that could turn the whole 3rd party upgrade scene on its head." Read More
  • Robert J (USA): Arm Board

    "The three brass inserts allow a faultless connection between the sub-chassis and the arm board, bettering many offerings at up to five times this price point, and dare I say it, giving some well known extremely high end one piece solutions something to think about." Read More
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Structure Set: The SERENE Top Plates, Base Board stiffen up the rigidity of the plinth, dissipating vibration from external and internal sources.

Platform Set: The SERENE Solid Surface Arm Board and Sub-Chassis are the perfect platform for your tone arm and platter

Full Set: All 4 components of the full set of SERENE upgrades combine to provide the highest level of improvement. The maximum removal of vibrations and colourations within the LP12. The lowest possible noise floor that means you hear more detail, more focus and a greater soundstage. The whole really is greater than the sum of the parts. Simply put, more musicality.