![essb audio chain essb audio chain](https://ae01.alicdn.com/kf/H8ab0eb066582436e946cf410c5e012fbH.jpg)
There is nothing worse than what an impedance mismatch does to your audio, which is so often overlooked by the average ham. The variable attenuator and ability to wire your connections either HiZ or LoZ is VERY nice. I’ve tried it now with several radios and it works like a charm.
ESSB AUDIO CHAIN HOW TO
(Just to buy a good Jensen transformer at 1 pc, you are looking at $75 minimum.)Īpplication: Julius has done a GREAT job in supplying all the information on how to hook the iBox up with just about anything. I will point out that this is something anyone could homebrew and upgrade the components considerably, but you are going to spend more than you would think. I’d pay more for some upgraded components.
![essb audio chain essb audio chain](https://i.ytimg.com/vi/WADk8IiR024/hqdefault.jpg)
Add the labor in packaging and support, $60 seems a fair price as it is provided. I estimate there are about $35 in parts maximum, which is due mostly to transformer, custom cut box and circuit board. I’d happily pay an extra $25 for a metal case and a good Jensen transformer with metal can, but that’s just me. These are big no-no’s in the professional audio world where strong RF is not normally present, so I was concerned to see this in a radio application where high RF can be present. I have to admit, the components are fairly cheap. Other than the too small of box, I was concerned with the unshielded (no can) transformer and plastic box. If you understand what is going on electrically and can read a schematic, it is pretty simple and no problem. The instructions were a bit incomplete, as they are not aimed at a first time kit builder. You need proper tools and experience to not mess this kit up. While simple electrically, it requires good skills at soldering with low wattage and very short runs of shielded wire in tight spaces. Kit build: This is a case of a lot of stuff in a VERY small box. I’m seasoned ex-pro audio engineer and professionally trained at soldering. I use it for ESSB and standard 3KHz SSB audio. I’ve been using the iBox for over three years.