MODE refers to the secondary processing and modification of the product by some experienced senior audio equipment enthusiasts or third-party manufacturers after the audio product leaves the factory, the most common such as replacing more advanced capacitors and resistors to change the original sound color and so on.
General products are calibrated by the original designer before leaving the factory, unless it is an experienced \"old burn\" of audio equipment, generally not recommended Mode. Because this may destroy the original electrical performance of the equipment will also affect the equipment in the second-hand market, for example, replacing the frequency divider in the horn may destroy the original air tightness when opening the horn box. Therefore, it is often seen on second-hand trading forums that sellers specifically note at the end: \"no repair no mo\" this \"mo\" is the meaning of \"mode\".