They're powered, so no need for a power amp. Specs and info from the KRK website.
It features a 1 KRK designed Kevlar® tweeter and 8 lightweight KRK designed woven Kevlar® woofer. Using Kevlar® for both the woofer and tweeter these KRK monitors give you extremely smooth midrange definition without colorization and pristine high-end with tight, controlled low-end as well as a wide sweet spot and beautiful imaging. The 230W KRK designed, bi-amped Class-D amplifier delivers superior transient speed and up to 118 dB of SPL. KRK´s optimized front-ported bass reflex enclosure design avoids boundary coupling to allow flexibility in room positioning. 49 different DSP driven EQ presets deliver superior control for room/desk correction as well as personal taste.
The solid aluminum front-baffle and EVA foam pad is like having a built in stabilizer that improves transient response and imaging. 1 KRK custom designed Kevlar® tweeter. 8 KRK custom designed Woven Kevlar® woofer. Optimized front ported bass reflex enclosure design. Acoustic and desk loading condition correction Low Frequency EQs.
Mid and High Frequency EQs. 49 different DSP driven EQ presets give you superior control for room/desk correction as well as personal taste. Precise input level attenuation switch.Standby, ground lift, input sensitivity, and logo LED selectors. Optional protective grille included for mobile broadcast applications. Friction lock, Neutrik combo (XLR and TRS) connector. Robust EVA foam pad for non-skid and acoustic isolation. Universal threaded mounting bracket points.
You can look them up, if you need more info. The item "KRK V8S4 V8 Series 4 8 2-Way Powered Reference Monitor Pair Studio Speakers NEW" is in sale since Tuesday, March 12, 2019.
This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Speakers & Monitors". The seller is "protrade21" and is located in Spring Hill, Tennessee. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Colombia, Panama, Jamaica, Viet nam, Uruguay, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Gibraltar, Guadeloupe, Iceland, Jordan, Cambodia, Cayman islands, Sri lanka, Luxembourg, Martinique, Maldives, Nicaragua, Oman, Peru, Pakistan, Paraguay, Reunion.