Rockville APM8C 8" 2-Way 500W Active/Powered USB Studio Monitor Speakers Pair, Cherrywood Rockville APM8C 8&quot; 2-Way 500 Watt Active Pair of USB Studio Monitor Speakers in Classic Wood Finish (Pair). RMS 250 Watt. Two-Way Active Studio Monitor Speaker System. Quad Amp Design: Each Driver Features Frequency Specific Independent Amplifiers The enclosure is 0.5&quot; thick while the front board of it is a full 1&quot; thickness to give you the ultimate best sound quality! Comes in 3 enclosure finish options Wood finish painted black. Wood finish painted white. Wood finish with vinyl front board Full Range Class &quot;D&quot; Amplifier Circuitry with Auto-Switching Power Supply. LED Power on Indicator on Rear Panel. Ferro Fluid Enhanced 1.5 inch Neodymium Silk Dome Tweeter With Metal Grill Protection. Tweeter has 1&quot; voice coil diameter 110 Volt compatible with SMPS technology. Every Speaker in Production Undergoes a Computer Generated Sound Check Test to Ensure it Upholds to our Specifications and Standards. We use a &quot;6Sigma&quot; style Quality Assurance of Each Product. Transducer Production Line to Make the SPL Performance Stable.One Complete Pair with Mater/Salve Output Connection with Included Noise Rejection Cabling.Includes a noise rejection cable to connect the 2 speakers together.The cable locks in secure &amp; tight Inputs / Outputs / Controls: Volume control. Bass/Treble Control -4dB to 4dB (allows you to adjust high and low frequency independently). 1/4&quot; and XLR combo input jack. High Speed USB jack. RCA input. 3.5mm Headphone output. Details: Certification: CE and RoHS Compliant. Amplifier: Class D, very efficient amplifier with top components! (ADI--ADAU1701, TI--TPA3116, SMPS). System Impedance: Tweeter 6 Ohm. Woofer 4 Ohm. Signal to noise ratio: 91dB (Maximum output with THD+1&lt;1%, A-weight). Max SPL: 106dB @ 1w/1m. THD: 0.10%. Frequency Response: 30Hz - 20 kHz. 500 Watts peak output per pair. 250 Watt RMS output per pair. Each speaker produces 125 watts peak and 250 watts RMS. Input voltage: 120V. Components: 1&quot; neodymium silk dome tweeter and 8&quot; woofer with rubber surrounds and polypropylene cone.Product Dimensions in Inches: (W*H*D): 9.9'' x 15.4'' x 12.2''. Shipping Dimensions in Inches: (W*H*D) 30.0'' x 19.53'' x 13.94''. Net Weight(Pair): 33 LBS. Shipping Weight (Pair): 38.4 LBS. Includes speaker linking cable and power plug. Input Impedance (Ohms): 10 K Ohm Balanced. System Volume: (-30dB to +6dB)