Product Highlights Distribute Signal to Multiple Headphones 1 x 1/4 #34; TRS Stereo Input 4 x 1/4 #34; TRS Stereo Headphone Outputs Dedicated Level Control Per Output Power Status Indicator Compact Heavy-Gauge Steel Chassis Includes Power Supply Mackie HM-4 specs Number of Channels 4 Input Connections 1 x 1/4 #34; TRS stereo (unbalanced) Output Connectors 4 x 1/4 #34; TRS stereo (unbalanced) Input Impedance 10 kOhms Output Impedance 47 Ohms Maximum Output Level +22 dB Function Controls 4 x volume controls Frequency Response Not specified by manufacturer Power Requirement 12 VDC power supply Current Draw lt;220 mA maximum Construction Material Heavy-gauge steel chassis Dimensions (H x W x D) 2.0 x 4.3 x 2.3 #34; / 51 x 109 x 58 mm Garansi resmi 1 tahun. Note : Tanyakan terlebih dahulu utk stoknya. thanks