Shelter Model 411 Type II Moving Coil Step Up Transformer
The Shelter Model 411 II is mono-functional stereo MC transformer to match with MC cartridges with internal impedance (DCR) of less than 15 ohm. The impedance tolerance is 25 ohms. The transformer is a toroidal design that applies the toroidal winding to 0.05mm thickness of supermalloy, layered ring-core. The core volume has an external diameter of 25mm, internal diameter of 16mm and height of 10mm. The termination of the wire is directly connected to in/out terminal. Therefore, the high efficiency of toroidal transformer realizes extremely low loss structure. It delivers the signal from the cartridge without coloration to the phono- terminal directly. Model 411II is a modified version of Model 411 and it has 32dB of step-up ratio of approximately 40 times.
Features
- Super Quiet
- Made in Japan
Specifications
- Input impedance: less than 15 ohm (tolerance 25 ohm)
- Step-up ratio: 32dB
- Output impedance: 47K to 50K ohms
- Dimensions: 142W x 66H x 106D (mm)
- Weight: about 1Kg
About
Shelter has been manufacturing high-end phono cartridges as a specialized analog audio manufacture by traditional manufacturing technique since the company was established in 1986. All Shelter MC phono cartridges are hand-made at a workshop in Japan by adept craftsmanship, then they are all inspected and quality assured by Yasuo Ozawa himself, the designer and founder of Shelter. The brand name of Shelter is designated with hoping that the world analog record lover who aims the summit of music playback can trust the brand and becomes a dependent on a place (shelter) of analog audio occasionally.