To regulate the sound of your speakers (reguliator zvuka), you have two main options: to boost and equalize sound digitally, or hardware knobs for quick, tactile physical control. 1. Software: Free Volume Boosters & Equalizers
A highly affordable passive controller that doesn't require a power supply and features a large, easy-to-use knob. It is priced around $35.90 at Alto Music . reguliator zvuka dlia kolonok skachat
For a more professional setup, this tabletop controller provides "purity" in the audio path with zero electronics to color the sound. It is available at B&H Photo or Guitar Center for about $69.99. To regulate the sound of your speakers (reguliator