People often ask me, what cores are we using for our transformers? Why some manufacturers name theirs as grain oriented silicon steel, Hi-B, Oriental Hi-B and etc? Well, there are many names, and actually some of them are the same. In order not to instill confusion, let me clarify some of the terms we use here.
By the way - we offer custom made high grade Single and Double C Core Power Transformers now!
Here are some of the names of our standard Si Fe grain oriented cores:
- 23ZDMH85 - C Core
- 27ZH105 (aka Z6H) - EI core 0.27mm lamination thickness
- 27Z130 (aka Z9) - EI core 0.27mm lamination thickness
- 27Z145 (aka Z10) - EI core 0.27mm lamination thickness
- 30Z145 (aka Z11) - EI core 0.30mm lamination thickness
There are high grade core materials used for transformers. A lot of the other guys are using the lower grade materials, non grain oriented cores that are inefficient, larger in size comparison, hotter and sound worse. We don't use them for our high grade products. Period.
For cost sensitive users, we will consider coming out with more cost effective products in near future, depending on demand and user requests. We will specify clearly what materials will be used if customers ask for low cost products.
J&K Audio Design
15 May 2014