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<blockquote data-quote="json_35010" data-source="post: 2062939" data-attributes="member: 569181">Ok, here a better set of examples.&nbsp; I am using the A2002T to A8002T models for the examples:1) They use mostly all pin through technology instead of surface mount.2) They use cheap &quot;old school&quot; circuit boards that do not take solder properly, so down the road you run into cracked and broken joints.&nbsp; Also, sometimes the boards can crack.3) They do not properly clean the boards after they are manufactured, and the flux that is use during manufacturing is the flux that can cause problems later (corrision).4) As I had mentioned before, there is not proper protection built in to protect the internal components.&nbsp; In the event of a short, spike, or overheating problems the input circuit that sets up the power supply voltage will totally breakdown.&nbsp; These unit either carry 4 or 8 FET&#039;s in the input section.&nbsp; If any of these problems occur, all of these FET&#039;s will be blown.&nbsp;&nbsp; In the event that the proper protection circuit had been used, this would not have happened.&nbsp; Especially, not to this degree.&nbsp; Pioneer and Sony also have protection issues.5) Even down to the mounting of the internal boards, LED&#039;s, heat sinks, etc. are done in a very cheap, technologically challege way.Don&#039;t get me wrong, they do have their positives, but they have plenty of negatives.&nbsp; I feel that Audiobahn spent alot more time and money designing the externals to boost sales by their looks, and not near as much time and money designing the actual electronics.</blockquote>

[QUOTE="json_35010, post: 2062939, member: 569181"] Ok, here a better set of examples. I am using the A2002T to A8002T models for the examples: 1) They use mostly all pin through technology instead of surface mount. 2) They use cheap "old school" circuit boards that do not take solder properly, so down the road you run into cracked and broken joints. Also, sometimes the boards can crack. 3) They do not properly clean the boards after they are manufactured, and the flux that is use during manufacturing is the flux that can cause problems later (corrision). 4) As I had mentioned before, there is not proper protection built in to protect the internal components. In the event of a short, spike, or overheating problems the input circuit that sets up the power supply voltage will totally breakdown. These unit either carry 4 or 8 FET's in the input section. If any of these problems occur, all of these FET's will be blown. In the event that the proper protection circuit had been used, this would not have happened. Especially, not to this degree. Pioneer and Sony also have protection issues. 5) Even down to the mounting of the internal boards, LED's, heat sinks, etc. are done in a very cheap, technologically challege way. Don't get me wrong, they do have their positives, but they have plenty of negatives. I feel that Audiobahn spent alot more time and money designing the externals to boost sales by their looks, and not near as much time and money designing the actual electronics. [/QUOTE]

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