PDB4 Four Channel Passive Direct Box USER'S GUIDE
IMPORTANT SAFETY INSTRUCTIONS - READ FIRST This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the accompanying literature. Please read the manual. Read instructions Retain these safety and operating instructions for future reference. Heed all warnings printed here and on the equipment. Follow the operating instructions printed in this user guide. Do not open There are no user serviceable parts inside.
OVERVIEW The ART PDB4 Four Channel Passive Direct Box is a deceptively simple, yet surprisingly useful addition to any serious collection of audio equipment. The PDB4 is a four channel passive direct box that features four quality fully transformer isolated direct boxes in a 1U 19-inch rack mount chassis. Inputs and outputs of each of the four channels are isolated to maximize channel separation. Transformer isolation on each output helps to eliminate system ground loops.
USING A PDB4 1. Electric guitar and bass pick up output signals The high impedance signal from a guitar or bass guitar pickup is translated by the PDB4 into a low impedance balanced signal required by mixing consoles. Suggested setting – set the input attenuation to 0dB. 2. Keyboards and line level signals The PDB4 automatically balances and matches the line level outputs of modern electronic keyboards.
WARRANTY INFORMATION Limited Warranty Applied Research and Technology will provide warranty and service for this unit in accordance with the following warrants: Applied Research and Technology, (ART) warrants to the original purchaser that this product and the components thereof will be free from defects in workmanship and materials for a period of three years from the date of purchase.
SERVICE The following information is provided in the unlikely event that your unit requires service. 1. Be sure that the unit is the cause of the problem. Check to make sure that the unit has power supplied, that all cables are connected correctly, and that the cables themselves are in working condition. You may want to consult with your dealer for assistance in troubleshooting or testing your particular configuration. 2. If you believe that the ART unit is at fault, go to www.artproaudio.com.
SPECIFICATIONS Ground Lift Switchable Input Attenuation Switchable (0dB, -20dB, -40dB) Input Impedance 50k Ohms Output Impedance 600 Ohms Input Jacks 1/4" TS unbalanced Output Jack XLR Male balanced Frequency Response 10Hz - 50kHz +/-0.5dB@+4dBuhigh, 19" Enclosure Steel 1U high, 19" rack mount Dimensions (HWD) 1.75” x 19” x 6” (44mmx483mmx152mm) Weight 6.5 lbs. (2.
www.artproaudio.com E-mail: support@artproaudio.com © 2013 Applied Research & Technology PDB4 V1.
