SBooster Ultra MKII
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Shipping Information
Orders placed before 3 PM on weekdays are shipped the same day - Free shipping on orders over 1000:- (within Sweden)
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Multiple payment options
Pay easily with Klarna, Apple Pay, Google Pay, Card, Paypal etc
SBooster Ultra MKII
- The innovative electronic design filters and optimizes the input power and is fine-tuned within the audible range.
- The Ultra MKII circuit uses upgraded input and output buffers with higher capacity and solid conductive polymer capacitors to reduce output ripple and expand the bandwidth of the filter circuit.
- The transient response has improved by 40-50% compared to the Ultra MKI by adding new components and reducing the output impedance to a minimum.
- The output circuit is now equipped with an impedance correction filter to achieve improved performance over a wider bandwidth.
- "Sbooster Decoy": We all love having our audio devices in metal enclosures, but... a lot of sound also comes from the radiation of the used electronic components, which cannot escape from the metal enclosure and continue to bounce around inside. How can you eliminate this noise? With the help of Sbooster's innovative "Sbooster Decoy" that lures the unwanted sound out of the metal enclosure.
- Star-ground-design: Ultra MKII is a star-ground design. Almost every component has its own ground connection. This makes the electronic construction more stable and provides a pleasant feeling in the music.
- Newly designed input and output cables: The cables on the Ultra MKII have only one purpose: to transfer all the benefits of the BOTW P&P ECO and Ultra MKII design without any form of interference on the audio device. The input and output cables feature high-quality oxygen-free copper in the conductors and are double-shielded. The interchangeable DC connectors are equipped with custom-made gold-plated contact pins.

Shop for over 990 SEK and we’ll ship for free!
If you order before 3 PM on weekdays, we will ship the same day, provided the item is in stock. Normal delivery time is 1-5 business days, but during high order volumes or for certain products, delivery may take longer. If any of the items you ordered are out of stock, we will notify you as soon as possible.
We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 14 days of delivery. For exchanges or purchases of a new item in connection with a return, we cover the return shipping cost. Please note, however, that there are exceptions where free return shipping does not apply, such as large and heavy items or expensive shipping relative to the item’s value. This is decided on a case-by-case basis.
What does our stock status mean?
In stock - Ships immediately the same day if ordered before 3 PM (weekdays)
3-8 days - In stock at supplier and ordered immediately
4-12 days - In stock at supplier and ordered immediately
We offer a warranty of at least 2 years on all products, and some items come with an extended warranty of up to 5 years. This way, you avoid costly insurance and can feel secure as a customer. If any issues arise during the warranty period, you are welcome to contact us, and we will resolve it quickly and smoothly.
- Versatile payment options and secure transactions. Invoice or installment payment with Klarna, card payment, etc.
- Fast deliveries: Orders received before 3 PM are shipped the same day
- Secure product delivery with reliable logistics partners (DHL & UPS)
- Price guarantee to ensure our customers get the best possible deal
- Fast & professional customer service via email and phone. (email responses within 24 hours)