Product Features

AcoustiPack™ Sound-proofing Kit

Acoustically improves an already superbly quiet PC case!
Easy to fit - pre-shaped, self-adhesive acoustic materials
Fully detailed kit - total of 18 parts (we've done the hard work for you!)
Full instructions included
Hidden - once fitted, the kit remains hidden
BONUS - FREE Set of Ultra-Soft Fan Mounts for the Air Duct*

View Features and Benefits of Antec Sonata II Case

Technical Specifications

AcoustiPack™ Pre-Cut for Sonata II

Total number of parts: 18
Acoustic foam blocks: 3
Kit weight: 2.5Kg
Kit box dimensions: 450x380x75(H)mm
Boxed with instructions
FREE Ultra-Soft Fan Mounts (Model: AFM03B) with Promotional Kits

View Technical Specifications of Antec Sonata II Case

Antec Sonata II Pre-cut AcoustiPack. Image showning installed kit: the roof is lined with acoustic materials.

Antec Sonata II Pre-cut AcoustiPack. Image showning installed kit: the floor is lined, and there are foam blocks for unused HDD slots.

Antec Sonata II Pre-cut AcoustiPack. Image showning installed kit: the pre-cut pack contains two small parts that can be installed behind the motherboard to help reduce any case resonance.

View the Antec Sonata II PC Case.

Pre-cut Kit for the Antec Sonata II

Product Code: AP AntecSon II/I

Ultimate Noise Reduction - squeeze every last dB out of the superb Antec Sonata II quiet PC case! An effective sound-proofing accessory kit from Acousti Products made especially for the Antec Sonata II. Make an already quiet case even quieter!

Please note, this kit also fits the Antec Sonata I quiet PC case.

View our full description and images of the Antec Sonata II PC Case.

Side view of the Sonata II with AcoustiPack fitted. The Antec PSU is not shown fitted, and the case side panel door has been removed. Various quiet case features are highlighted.

For a detailed explanation of how the kit fits download the Fitting Recommendations (available in PDF - see below). These graphically show the case and the acoustic material parts in an expanded view with notes.

The AcoustiPack™ Pre-cut Sound-Proofing Kit

View of the pre-shaped soundproofing kit for tthe Antec Sonata II. The image shows foam blocks in the background. There are 18 parts to this kit in total. Some parts require pressing out before fitting.

Side-on view of the Antec Sonata II showing the door with dark gray acoustic composite soundproofing material applied.

Fitting Recommendations

Antec Sonata II/I Fitting Directions v1 NOTE THESE ARE 1.6Mb

First work out where each part fits in the case and fit ONLY in the order shown on the instructions because some parts will NOT fit if installed before others!

We've found that removing only part of the backing sheet when fitting self-adhesive parts is the easiest way to fit them. For example, when fitting the self-adhesive door panel to the inside of the Sonata II door - peel back a small proportion of the backing sheet first, locate the self-adhesive part against the hinge edge as directed, and only proceed when you are certain that the part location is correct. If you make a mistake - the materials can be re-positioned - not to worry!

Please take care to read the fitting directions before assembling this product. It is the responsibility of the machine builder to position the materials appropriately to facilitate the normal functioning of internal components.

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Reviews & Feedback

PCMag.com's article on Making a Quiet Case Quieter features the Antec Sonata II with the AcoustiPack pre-cut kit.

"...it's an attractive case and has room for expansion. This case also has a sturdy but relatively accessible interior, so it's fairly easy to work on. (A large cooling duct that vents air from the CPU cooler out of the case gets in the way, but that part is easy to remove.) Those are not the only reasons for choosing the Sonata II, however: the AcoustiPack precut noise reduction kit really won us over. You can buy noise reduction plastic or foam materials, of course, and you can cut them yourself for any PC case. But anyone who's tried to cut a straight line through a piece of foam with a craft knife or Dremel will understand the appeal of a precut kit.

"...the AcoustiPack kit provides substantial noise reduction..."[full article]

The Italian website pcimprover.it installed their Antec Sonata II PC case with a GlobalWin SAK 38 heat sink. They then took sound measurements both with and without the AcoustiPack™ Pre-Cut Soundproofing Kit installed.

Their tests showed that with the AcoustiPack™ soundproofing kit the noise emissions were reduced from 45dB(A) to 36dB(A) which is approximately 3 times lower noise output! It also showed that the frequency of sound was also lower.

They would recommend AcoustiPack™ to anyone wanting to significantly reduce the noise of their PC without sacrificing performance. [full Italian review]

ExtremeTech.com built a modded Antec Sonata II with an Athlon 64 FX-57, Seasonic S12 600 PSU, Zalman CNPS 7700 and eVGA GeForce 7900 GTX. The resulting SPL (A-weighted) was an extremely quiet 29dB(A)!

"...we didn't expect the Sonata by itself to be quiet enough, but then we discovered the AcoustiPack™ pre-cut noise reduction kit for the Antec Sonata II. It's certainly true that you can buy noise reduction plastic or foam materials, cut them yourself, and use them with any PC case. Anyone who has ever watched in horror as someone tried to cut a straight line with a craft knife or Dremel will instantly understand the appeal of a pre-cut kit...

"...the system was eerily quiet overall, in a quiet office with nothing else running. At one meter from the front, you had to strain to hear the system run, even at full bore...

"Pros: Easy to apply; relatively low cost; works well
Cons: Need to take care in applying the material; this kit is only for the Sonata or Sonata II
Summary: If you want to build a quiet PC, then this kit can give you a big head start, with no need to measure and cut. And it's fairly inexpensive." Rating: 9/10 [full review]

"Nice one. I used it and I am pleased." Georgi, Bulgaria.

"Simply incredible. I saw this kit in a friend's computer and was astonished by the quality and quietness of his computer." John, USA

"Makes the silent chassis even more silent... Thought it was impossible, but no..." Sonny, Sweden

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