Have bought 4 of these amplifiers. I was skeptical at first, because the devices really are very favorable. But when incorporating it in the right place, then there is actually an amplification of the signal. Do not think the 15.- or 20.- devices bring higher performance from the hardware store. Rather think that here the same materials are installed. But of course I can not judge ... just important is that incorporating the amplifier behind the multi-switch (if any), not before. So on the way multi-switch -> Receiver. So it was at least for me ....
