The compact Studiophile AV 40 powered reference monitors deliver the same proven M-Audio technology favored by top producers, recording engineers and musicians around the world. The combination of 4? polypropylene-coated drivers and 3/4? ferrofluid-cooled silk dome tweeters provides punchy lows, crisp highs and a balanced, uncolored response. Custom cabinets with dense wood construction deliver more accurate bass response than you could ever get from plastic multimedia speakers. And for the highest possible fidelity, the Studiophile AV 40 monitors also feature OptImage III wave-guide technology and a 20 watt-per-channel internal amplifier that utilizes Class A/B architecture. The Studiophile AV 40 reference monitors are the perfect solution for traveling musicians or anyone who wants top-notch sound from their desktop multimedia system. M-Audio's proprietary OptImage III wave guide improves overall detail and clarity while minimizing sound issues that can plague other compact monitors. The system works by improving the overall efficiency of the tweeter as well as time-aligning the drivers. This ensures that the audio from each driver reaches the listener at the same time, guaranteeing precise stereo imaging and accurate response. If you require extra bass response, the Studiophile AV 40 monitors have you covered. MDF wooden cabinets, bass reflex design and an integrated bass boost switch let the Studiophile AV 40s crank out plenty of low end?perfect for urban/dance music, DVDs and more. Unchecked, all speakers emit electromagnetic waves that can wreak havoc with your computer's video monitor or a nearby TV. The Studiophile AV 40 monitors are magnetically shielded so that all of your electronic equipment can coexist on your desktop without interference. Front-panel volume control Rear-panel on/off control Bass boost control MDF cabinet with bass reflex port design Frequency Response - 85 Hz - 20,0