You say harman kardon are not a real hifi company then go on to recommend products by jbl and infinity which are also manufactured by harman
Harman are a premium quality audio company who make some of the best audio equipment on the market.
Ok, let me clarify what i am saying.
There is no doubt that the Harman Kardon system is better than the standard
fitted system, however, it cannot perform to the same level
as carefully chosen component speakers/system.
Now, for example, the JBL MS62C component speakers have been very
well reviewed, they do cost £199.95.
I dont think, for a moment, the H/K speakers would perform as well as a the JBL's.
They may well be a Harman company, but the performance of the speakers throughout the Harman range will have different performance levels.
You wouldn't really expect a pair of speakers costing £49.99 to sound as good as a pair costing, say, £249.99.