Trevor James horns come highly recommended by many teachers as a good quality student horn. They start at around £500 -£600. Their newish pro model, the TJ raw, retails at £2500 and has had brilliant reviews. Before the ultra-cheap horns (G4M etc) at around £200, became usable, TJ was a much safer option.
Their website makes no mention of them having a different name in the past. If they did, the horns from the pre-name change would have older style ergonomics and wouldn't be the easiest to play for a beginner, like any older sax.
Hmmm. I remember the fanfare when Trevor James saxes were launched, and there was no mention of a previous company. I've also seen a James and Young sax advertised recently, and it looked very much like a modern Chinese sax using a Western sounding name to get over people's prejudices about Chinese names. It was new or nearly new. So my guess would be that the two brand names have nothing in common.
Established in London in 1979, we have grown from very specialist beginnings servicing and repairing the flutes of professional London musicians to 33 years later, being one of the World’s most prestigious student, conservatory and professional instrument designers and suppliers.