User manual ROLLS DB24

[. . . ] This product is warranted to the original consumer purchaser to be free from defects in materials and workmanship under normal installation, use and service for a period of one (1) year from the date of purchase as shown on the purchaser's receipt. The obligation of Rolls Corporation under this warranty shall be limited to repair or replacement (at our option), during the warranty period of any part which proves defective in material or workmanship under normal installation, use and service, provided the product is returned to Rolls Corporation, TRANSPORTATION CHARGES PREPAID. Products returned to us or to an authorized Service Center must be accompanied by a copy of the purchase receipt. [. . . ] Consumer audio equipment such as CD players, DVD players, MP3 players, etc. , may be easily connected to a professional audio system. SPECIFICATIONS Input Impedance : Frequency Response: Output Impedance: Max Output Level: Connectors: Controls: Weight: Dimensions: Rolls Corporation Salt Lake City, UT 2/07 20k - 600 Ohms 50 - 15kHz +/- 3 dB 600 Ohms +4 dBm 2 ea; XLR Male, 1; Stereo RCA, 1; 1/8" (3. 5mm) TRS, 2 ea; 1/4" TRS 2 ea; Variable attenuators, 2 ea; Ground Lift switches 1. 5 lbs. 3. 42" w x 1. 45" h x 3. 325" d Operations Guide INTRODUCTION Thank you for purchasing the DB24 Stereo Direct Interface. This sturdy device is designed and manufactured to the most demanding specifications in order to provide years of faithful survice. The DB24 converts high impedance audio signals to low impedance via Rolls proprietary audio transformers, and a variety of inputs. CONNECTION / OPERATION 1/4" Jacks: Stereo Operation Operation: A. Individual Right and Left connections - Connect Tip-Sleeve 1/4" plugs to the Right and Left Input jacks. Stereo Tip-Ring-Sleeve connection - Connect a Tip-Ring-Sleeve 1/4" plug to the Left/Stereo Input jack. IMPORTANT NOTE: Connecting a Tip-Sleeve MONO plug into this jack, with nothing connected to the Right/Mono Input will result in the Right/Mono Input being shorted to ground. 1/4" Jack: Mono Operation Connect a Tip-Sleeve Mono plug to the Right/Mono Operation: Input. 1/8" (3. 5mm) Jack Connect a Tip-Ring-Sleeve stereo plug into this jack for stereo Jack: operation only. NOTE: Connecting a Tip-Sleeve MONO plug into this jack, with nothing connected to the Right/Mono 1/4" Input will result in the Right/Mono Input being shorted to ground. RCA Jacks: Connect Stereo RCA plugs into these jacks for stereo or dual-mono operation. Connect XLR outputs to the next device in your signal chain. Adjust the Right and Left Level controls for an appropriate input level. For example, for maximum amount of attenuation (least amount of signal), turn the Level control to -60. [. . . ] - Right Level: Adjusts the input level to the Right channel. Mon: 1/4" Tip Sleeve jack for connection to the "Right" portion of a stereo signal, or to a "Mono" signal. REAR PANEL SCHEMATIC NOTE: DESCIPTIONS FOR THE FOLLOWING ARE IDENTICAL FOR THE LEFT AND RIGHT OUTPUTS. - Ground Lift (Labeled "gnd/lift"): When positioned to the side of the switch labeled "lift", the shield of the XLR plug is separated from the ground pin (pin 1). - Left/Right OUT: Balanced XLR jacks - for connection to mixer inputs, amplifiers, etc. [. . . ]