As you may already know, I am a keen contester, and 1K-FA has taken part with me in many many contests, with no signs of tear or wear.
However, since past winter, a problem came up with it, some of its front panel keys stopped operating. Since those not working were the most vital ones (ON/OFF/POWER/DISPLAY/OPERATE), I decided to contact SPE for technical advice. I only did that lately, because I mostly remote control the amplifier and all its functions through its software.
SPE`s customer support team is really prepared to face and give solution to virtually any problem that may come up with their products.
The explanation I was given for the fault, was that a specific point of the flat cable membrane that goes from the front panel to the CPU board, is constantly in touch with the left metallic chassis of the amp, and that causes a few cable lines to break as temperature rises progressively. A broken line, of course, means loss of some keys control.
I ordered a new front panel keyboard replacement, with a very low cost indeed (!), which arrived a few days later. In the envelope, there was also a piece of velcro to put between the new flat cable membrane and the point where it comes in contact with the left metallic chassis.