If you are using a Dolby ProLogic Surround Sound decoder, use the “normal”(not wide) setting for the center channel.If you are using a Dolby Digital AC-3 decoder, set the center channel bassmanagement system setting to “Small.”Even though the ProCenter is a very wide range speaker with excellent dynamicrange, our experience has indicated that these settings will give you the best overallperformance from your system.It is our pleasure to offer assistance if you have any questions regarding yourProCenter or their set-up. Please contact your nearest Definitive Technology dealeror contact us directly at 410-363-7148.Technical AssistanceSetting the Center Channel Adjustmenton Your Surround Sound DecoderVisit us at www.definitivetech.comand learn about all our exciting products. 3ProCenter 1000 SpecificationsDimensions: 143/4" W x 5" D x 5" HWeight: 8 lbs. eachFrequency Response: 47 Hz – 30 kHzEfficiency: 90 dBNominal Impedance: Compatible with 4 – 8 ohm outputs.Driver Complement: Two 41/2" cast basket bass/midrange driverscoupled to two 41/2" pressure-driven planarlow-frequency radiators.Rec. Assoc. Ampl.: 10 – 200 watts/channelProCenter 2000 SpecificationsDimensions: 17" W x 61/2" D x 61/2" HWeight: 12 lbs. eachFrequency Response: 42 Hz – 30 kHzEfficiency: 91 dBNominal Impedance: Compatible with 4 – 8 ohm outputs.Driver Complement: Two 51/4" cast basket bass/midrange driverscoupled to two 51/4" pressure-driven planarlow-frequency radiators.Rec. Assoc. Ampl.: 10 – 250 watts/channelSpecifications subject to changeSpecifications