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SID Sound Improvement Disc
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SID Sound Improvement Disc

  (7 Reviews)

Improves the sound of CD, SACD, DVD –A & DVD, sound & picture

£21.66 Exc. VAT |  


Manufacturer:  SID


SID Sound Improvement Disc

Improves the sound of CD, SACD, DVD –A & DVD sound & picture

The Sound Improvement Disc is an accessory that is placed on top of the CD , results in a better separation of instruments and a much clearer reproduction of the voice.

The SID is the easiest and the cheapest way to upgrade your HI-FI system.



The best way to hear the difference that the SID makes to the sound is to play a piece of well known music for a maximum of 30 seconds without the SID , and then the same piece with the SID in place.

All CDs are see through no matter if they are coloured or not. One only needs to take a small torch and hold it against the silver side of a CD to see that the light is visable through the disc. It is also possible to move the CD up to 1,3mm away from the laser. Being as the CD is only 1,2mm thick it shows that it is possible for the laser to actually see right through the CD. With this in mind the correction system reacts to the varying reflections it sees from the label thus giving the system more work to do than is necessary. With this in mind the sound will be very much smoother as it has hardly any interruptions induced by false information from the correction system.

The SID disc has a special matt finish on one side and this side is placed to the CD label so that the stray laser light is absorbed , the green colour changing the red light of the laser into black thus neutralising it.

The SID is only 0,3mm thick and 2,8gr. in weight so it will fit in virtually every player.

It is probably the cheapest way to improve the sound of CD that there is on the market.



The SID comes in two versions - model 14 for Philips and Sony Transports and model 15 for certain top loaders and Players with Pioneer stable Platter and Maridian 506+508.

Why model 14 & 15?
There is a very good reason why the SID comes in two versions.The model 14 is made for CD players with Philips and Sony type transports .These transports have got a spindle 15mm diameter with a cone so that when the CD is on the spindle it takes up 1,2mm in height (see sketch) thus reducing the diameter on top of the CD to 14mm diameter. The SID sits on top of the CD and fits exactly to the 14mm diameter so as to run concentric with the CD. (All other products on the market have a15mm hole which allows them run excentric which shakes the whole mechanism)


Sketch SID Model 14


The model 15 is made for CD players which have a Pioneer transport where the CD is placed label side down on the turntable. This spindle has a longer parallel part and the SID must first be placed on the spindle - 15mm diameter matt side up then the CD on top.


Sketch SID Model 15


The model 15 must also be used on:


  • B&O

  • C.E.C.





  • JADIS JP 1

  • EINSTEIN "The Last Record Player"


  • REGA


Average Rating (7 Reviews):  
Write a Review and share your opinions!

SID Sound Improvement
Thursday, 15 March 2018  | 

The cheapest and the best tweak, i
made! The sound became holographic, detailed and soft also..

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It actually works
Sunday, 17 December 2017  | 

I was somewhat sceptical about this product (more snake oil perhaps?) but I was very impressed by the instant improvement in detail, dynamics and low frequency control and this is in a highly modified Pioneer PD-S505 precision so already a high quality source. Very pleased and highly recommended

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Every Bit Helps
Monday, 26 December 2016  | 

Model 14 used with my Oppo PD-95 universal disc player helps reveal more of the spatial cues and details helpful in creating an illusion of a live performance . Also I use the Audio Desk Systeme CD Trimmer that also helps . Their effects are additive,working on different mechanisms of playback in a fairly high-end system .

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1 of 1 people found this review helpful.

Saturday, 10 May 2014  | 

I have a MBL 1521 drive, toploaded. This is not my cup of Tea because after i put the sid in the drive it couldnt read the cd. 9 out of 10 it just dont read. without the sid it works perfectly. I dont even give it 1 star because it didnt work with my equipment.

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2 of 4 people found this review helpful.


I'm sorry this didn't work with your equipment. Please contact us to arrange to send this back for a refund.

Saturday, 1 March 2014  | 

It works!

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1 of 3 people found this review helpful.

Sound Improvement Disc
Saturday, 25 January 2014  | 

They say that the simple solutions are the best. This certainly qualifies. Once the green disc was put onto my Pioneer (stable platter mechanism) pre Chord DAC 64, the difference was akin to an expensive equipment upgrade. Just get one.

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3 of 3 people found this review helpful.

Sound improvement disc
Tuesday, 12 November 2013  | 

Easy to use and relatively cheap. Tried this with a group of people who could not see whether the disc was in the player or not-everyone agreed that the disc did slightly improve the sound.
It may make more of a noticeable difference the higher the quality of the HI-FI system-I can imagine on a poor set up there would not be a noticeable difference.

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2 of 2 people found this review helpful.

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