"Ultra" silent version for broadcasting stations and recording studios.
A double structure with an inner box and outer box, featuring advanced sound insulation with floating contact surfaces. While designed for broadcasting stations and recording studios, there are also examples of implementation in 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 (custom sizes available) Width: 640mm (common) Noise reduction: Improvement of -8dB(A) compared to standard product S4.5ZR Minimum operating noise: 25.4dB(A) Middle fan, intake: exhaust = 1:1 Specifications details: Individual custom specifications 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 individually tailored 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 Ultra Quiet-D.WALL is a specialized product that meets advanced soundproofing requirements beyond the usual standards. Generally, there are no established sources for determining whether the environment of the room you will use has different requirements, making it a highly specialized area. To help customers reach appropriate judgments without confusion, Si R&D offers a "product + service" that combines specialized technology with on-site surveys. 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 few personnel, small offices, particularly quiet meeting 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." On-site surveys by Si R&D will not only measure noise levels with sound meters but also include auditory assessments by skilled professionals, providing ample material for consideration. The content will cover aspects such as sound reflection, reverberation, differences between ambient 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, and, if necessary, we will also prepare reports free of charge.
Line up（1）
| Model number | overview |
|---|---|
| Special Order | We will develop a dedicated specification for each project. |
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![[Information] FAQ for Silent Racks](https://image.www.ipros.com/public/catalog/image/01/82a/528507/IPROS45082699339917868193.jpeg?w=120&h=170)
![[Information] Advice on Installing a Silent Rack](https://image.www.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 issues, adopting a fabless production method like Apple (USA) and Muji (Japan), without having factories in-house, focusing on development. The products we develop not only excel in functional performance but also incorporate creativity and ingenuity to maximize the effects after installation. 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 gain the most benefits. Only our "customized specifications" of SI silent racks can lead to 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; they are solutions that directly address customer problems and challenges.