Review on Edifier R1280T Active Bookshelf Speakers - 2.0 Stereo Near Field Monitors - Wooden Enclosure - 42 Watts RMS - Ideal for Studio Monitoring by Somsak Saladang ᠌

1. Subjectively, there is a blockage of the upper midrange. It turns out a somewhat clamped sound when the muffled mids turn into bright highs. It may take some time to "warm up" the speakers, because. columns are new. However, judging by the comparative tests of the sound of this model with other manufacturers (there is a channel on YouTube with comparative testing of the sound of different speakers in different musical genres), a blockage of the upper mids will still occur. 2. Strange bass tone control. When a 50Hz signal is applied, changing the position of the bass control from minimum to maximum does not practically change the output signal level. However, when a 100Hz signal is applied, the change in sound pressure level with the change in the position of the bass control is clearly audible. It turns out some kind of selective low-pass filter, which does not touch the deep bass, but only regulates the midbass. P. S. The problem according to claim 1 was slightly corrected after replacing the capacitor on the tweeter from 3.3 uF to 6.8 uF, which is a 1st order high-frequency filter. Thus, the tweeter began to capture the upper midrange. Perhaps, after running the speakers and warming up the speakers, you will have to slightly adjust the capacitance downward. Time will tell.