Originally Posted by FOH
Wow, this cap issue, ...unbelievable.
I stop in here on occasion, I haven't followed every post, but I have seen many references to contact with JT of Sanway. I understand each inquiry to help in a particular owner issue, but what about the overall picture?
Question, do the individuals involved feel they can collectively effect change? Has Sanway exhibited evidence or behavior to support this premise? Are things trending one way or the other certainly hope those involved ultimately get the resolution they are striving for.
Originally Posted by FOH
In an effort to more closely follow along, I found the above contribution and I don't understand the "can't handle the current" aspect.
Even a 20amp circuit would pass 40amps continously, even with brutal sine wave test tones, for up to 30 seconds or so. Peak current draw easily can hit 500%-700% a breaker rating, even with demanding "long" peaks of 1-3 seconds.
Great points about sine wave testing, thermal handling, fan modding etc. Instead of remoting a loud amp, a modest hush box type environment, can be fabricated to address the noise issue. I've done it, easy stuff.
Has anyone, ie. Not, yourself, etc., summarized this thread, and put together a prioritized simple list of caveats or steps one can benefit from, when buying one of these? If not, what would those suggestions be? What exact steps would you take to rectify just the primary issues, given the opportunity at the design/mfg level?
The amps are designed for 230V 15A 50 Hz operation. When converted to 120V 30A, you can see the difference at a glance. The higher voltage amp runs at higher efficiency, thus less heat, it draws less current, thus all switches, cords, etc on the AC input side run cooler as well, especially at idle and most especially at extremely low frequencies, which these amps are designed to amplify like no other I'm aware of.
not has tried since day one to offer a clearing station for a fee in which he would have set up a simple routine to test major components and operation. That failed to gain traction with the DIYers who always want to pay a dollar less, or whatever the reason was.
I tried a while back to mention this idea again and and a second and a third time and was chided for being a broken record and handed some BS when I suggested interested folks at least form a buying block to negotiate with Sanway and leverage a half dozen other such agents against him for better quality control. At the very least, when there was some "We all knew we might get hosed going in" types of posts (that you can bet Tang read with glee) I suggested that that sort of nonsense should be purged and discouraged in this thread.
So, no... no progress has been made on that front. I really don't care, I just tried to suggest the obvious and try to help people who are interested or who have a problem, but only in PM. In this thread, not so much. It isn't worth taking flak for.
Bottom line: This is a DIY forum. These amps offer maximum output and bandwidth for 6 cents a watt. I'm not aware of anything that ever came close to that offer. It should allow for some serious DIY effort toward education, upgrading and trouble shooting, IMO. There is plenty of opportunity to modify the product, but as I said, it isn't worth taking flak to suggest and I wouldn't do it publicly or give the info to the Asian agent anyway. I do it myself stateside.