The famous Dave Z who is one of the writers of receiver reviews for Passport
and his own website has some pretty bad things to say about the 340.
I had my 340 expert comment on this and here is what he said:
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He criticizes the "sloppy" use of loose wires vs. ribbon wiring being used
on an RX-325 which was a cheap, fair performer in his review of the RX-340
and finds similarities. At first it seems like a valid thing to note. But
if you read his entire web presentation you'll discover the reason for this.
Ten Tec claims that ribbon wiring can interact from within and cause
unwanted spurs/hash on a given circuit board signal path. Dedicated wires,
however sloppy in appearance, causes less degrading of the signbal from
spurs/hash, according to Ten Tec.

He states that the synch is worthless. See my previous email for my
experience with the synch. I don't know WHY he says this!! Even that
R-75-loving Phil says the synch is fair, not worthless. My guess is that
when Dave has used a 340, he never bothered to read the manual thoroughly to
learn how to use it properly!!!!!!