The EZ-HDA4B contains four stereo headphone amplifiers with individual front-panel volume controls. Headphone outputs are provided on rear-panel MINI jacks. One stereo input signal feeds all the amplifiers. Stereo RCA jacks, a MINI jack and a 1/4″ jack are provided for connecting the input source. The EZ-HDA4B is used in music stores, houses of worship, studios, museums, home component systems and commercial sound systems.Main Features:One Stereo Input to Four Stereo OutputsUnbalanced Inputs on Rear PanelInput on MINI, 1/4″ (6.3 mm) or RCA JacksHeadphone Outputs on Rear PanelOutputs on MINI JacksFront-Panel LEVEL Control for Each OutputSpecifications:Inputs (3): Stereo on dual RCA jacks, stereo mini jack or 1/4 (6.3 mm) TRS, > 10 k, -10 dBV nominal, +8.5 dBV max. (RCA and 1/4), -16 dBV nominal, +2 dBV max. (Mini)Outputs (4): Stereo on Mini jacks (rear panel), 60 mW (100 load)Level control: Off to +2.5 dB gain (RCA and 1/4 inputs, 100 output load), Off to +9 dB gain (Mini input, 100 output load)Frequency Response: 20 Hz to 50 kHz (1.5 dB, 100 load)THD+N: < 0.1% (10 mW output, 100 load)Crosstalk: < -75 dB (1 kHz)Noise: < -95 dB (below 10 mW output, 100 load, maximum gain)24 Vdc power supply current: 40 mA (idle), 65 mA (max.)Case dimensions: 5.75 (14.6 cm)W x 3 (7.6 cm)DMounting size: 1/3 rack width.Package Type: Cardboard BoxPackage Dimensions: 9.5 x 7 x 2.25 in.Shipping Weight: 0.975 lbs.WEEE weight: 0.575 lbs.Tariff code: 8543.70.9960