The TRUTH B2031A is the substantially improved successor to our best-selling B2031. It is a high-resolution, active 2-way reference studio monitor with XLR and 1/4" TRS servo balanced inputs that delivers very neutral sound and has an extremely flat frequency response. It includes built-in 150- and 75-Watt power amps with enormous power reserve plus separately controlled limiters for low and high frequency overload protection.