Everything I ever owned by Harman/Kardon worked fine until it was sold, and the stuff I have still works great. And it's all been 20 years old, or older.
Probably 75% of the equipment talked about on this site is overpriced, and overrated.
Some difference need to be made on new vs vintage-i.e H/K.
As far as H/k goes they made some solid equipment in the 60-80's. They had some quality control problems in the early to mid 90's, but to seem to fix most of it.
The new stuff coming out of China maybe another story. Hopefully they get this resolved.
Contrary to some, they are very good, and very bad import (China in particuliar) factories, and everything else between. Given a solid design, quality oversite is the key. Easier said than done I can imagine, but it's do able.
My H/K td 393 and t-40 bought new in 1988 are still going strong, very solid. well tought out designs. Looking foward to my recent H/K PA 2400 purchase-see how it stacks up.
I recently bought a Onkyo 8522 (Malaysia-refurbed) for my office and still am amazed at the sweet, well balanced sound it produces through vintage DLK 1 1/2's. Nice phono section and surprising FM tuner for under $130 with 3 yr warranty.
Marantz made some nice sounding equipment, but everyone I remeber who had them in the 70's was always replacing bulbs, fuses, etc. Lucky to get a year plus, but sound wise they compared favorably with Pioneer/ Sansui/Kenwood/HH Scott/Akia.
Overall I would say the major Japan/US players in the 70-90's had some really great, and some so so equipment. I think alot of people were decieved into believing one brand was superior/inferior by their ads/ reviews or salesman. I had a subscription to Stereo Review through the 70-90's when they changed Sound and Vision (I think that's was it) and High Fidelity as well.
I remeber my fellow hifi geeks at the time (me included) would read a manufactors ad, and be totally sold on a new piece before even hearing it. Pioneer was a big hit among us younger geeks. The styling and sales ads/marketing were a big factor as I recall looking back. We finallly learned the value of equipment matching, despite Julian Hirsch telling us it didn't matter (I still have the utmost respect for his tin ears though!).
Some audio equipment in like a sports car-or women. High maintenece, but the rewards are worth it. At least to some of us!:thmbsp:
OK-the exception is Bose, I have heard dozens of their products, and their timbre and tonal characterisitcs are irritating to say the least. To me speakersare the most important link in the chain-they can more easily change the sound of electronics than the other way around.
Inexpensive components in the design, or just bad overall design- or bad execution? More of the first and last I would imagine. The old adadge fits-no high-no lows-must be Bose!