"Ultra" silent version for broadcasting stations and recording studios.
The double structure of the inner and outer boxes provides advanced sound insulation with floating contact surfaces. While designed for broadcasting stations and recording studios, it has also been implemented in quiet spaces such as small residential rooms, small offices, reception rooms, and executive offices.
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basic information
Rack sizes: 6U/9U/12U/15U/18U/21U/24U Depth: 1365/1465 (customization available) Width: 640mm (common) Noise reduction: Improvement of -8dB(A) compared to standard product S4.5ZR Minimum operating sound: 25.4dB(A) Middle fan, intake: exhaust = 1:1 Specification details: Individual specifications will be developed for each project.
Price information
The price range that is frequently used is approximately 500,000 to 1,000,000 yen. It is not a mass-produced product with fixed specifications. It will be a "product + technical service" aimed at ensuring successful implementation results. We will provide products with customized specifications for each customer.
Price range
P4
Delivery Time
※The usual period is 2 to 2.5 months. Sizes that are frequently available may be delivered immediately. During busy periods, there may be extensions, so please inquire each time.
Applications/Examples of results
Main clients and users <Video and Audio> TV Asahi, NHK, Victor Mastering Center, Panasonic, Miyaji Shokai, ROCK ON PRO, Photron, IMAGICA, Tamco, dts Japan, Shimizu Oct, TOA Engineering, Toei Animation, NHK Media Technology, NHK Broadcasting Technology Research Institute <Universities> The University of Tokyo, Hokkaido University, Tohoku University, Nagoya University, Kyoto University, Osaka University, Kyushu University, Tokyo Institute of Technology <Research Institutes> National Institute of Advanced Industrial Science and Technology, RIKEN, JAXA (Japan Aerospace Exploration Agency), High Energy Accelerator Research Organization, Advanced Industrial Science and Technology Center <HPC Manufacturers> Visual Technology Co., Ltd., HPC Systems Co., Ltd., HPC Tech Co., Ltd., Towa Electric Co., Ltd. <Distribution Partners> SB C&S Co., Ltd.
Detailed information
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Technical response to advanced soundproofing requirements The Ultra Quiet D.WALL is a specialized product designed to meet advanced soundproofing requirements beyond the norm. Generally, there are no established sources for determining whether the environment of the room you will be using has different requirements, making it a highly specialized area. To help customers reach appropriate judgments without confusion, Si R&D offers a "product + service" combination that includes on-site surveys conducted by technical experts. We encourage you to take advantage of this. This Ultra Quiet D.WALL was developed for broadcasting stations and recording studios, but it also fits well in rooms with fewer personnel, small offices, particularly quiet reception rooms, executive offices, and president's rooms. The key to successful implementation is not for "customers to choose products from a catalog," but rather to "accurately assess the room's requirements and match the product accordingly." The on-site surveys conducted by Si R&D will not only measure noise levels with sound meters but also include auditory assessments by skilled technicians, providing ample material for consideration. The content will cover aspects such as sound reflection, reverberation, differences between background noise and machine noise, discomfort caused by timbre and frequency distribution, as well as insights and advice that include the nature of the work involved. Additionally, we offer free preparation of reports as needed.
Line up（1）
| Model number | overview |
|---|---|
| Special Order | We will formulate a dedicated specification for each project. |
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![[Information] FAQ for Silent Racks](https://image.mono.ipros.com/public/catalog/image/01/82a/528507/IPROS45082699339917868193.jpeg?w=120&h=170)
![[Information] Advice on Installing a Silent Rack](https://image.mono.ipros.com/public/catalog/image/01/2e2/528508/IPROS85000189475979520879.jpeg?w=120&h=170)
Company information
SI Corporation is a specialized company for silent racks aimed at HPC computers and office servers. We operate with a unique business model to solve sound and heat problems, adopting a fabless production method like Apple (USA) and Muji (Japan), without having our own factories, and focusing on development. The products we develop not only excel in functional performance but also incorporate creativity and ingenuity to maximize the effects after implementation. We do not handle mass-produced items (selling products without follow-up) that do not guarantee sufficient results; instead, we provide customized specifications tailored to each project and customer, creating a system where users can derive the greatest benefits. Only with our "customized specifications" for SI silent racks can we ensure absolute success in implementation, unlike others. By concentrating on solving customer challenges and achieving their goals, our operational policy focuses solely on "favorable implementation results," always aiming to provide significant added value and benefits to all involved parties. The products developed by Si R&D are not just items but solutions that directly address customer problems and challenges.