User manual ROLLS PM50S

[. . . ] Personal Monitor Amplifier PERSONAL MONITOR AMP gnd lift PM50s MIC THRU PHONES LIMITED WARRANTY 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. [. . . ] This unit is a unique device for monitoring ones self and program material at the same time. It has a monitor level control and a mic level control, a mic pass-through XLR jack, 1/4" and 1/8" phone jacks, and a switchable mono/stereo 1/4" monitor input jack. The Mic In and Thru has a switchable ground lift for ellimination of ground loops. The PM50s is designed for performers who need to monitor their own signal, such as their vocals, with the main mix. It has become very popular with drummers who need to mix a click track with a monitor signal. Church choir singers love the PM50 to monitor their voices over the musicians. And many sound technicians use the PM50 as a quick line tester to troubleshoot audio systems. DESCRIPTION MIC THRU: XLR jack paralleled (hard-wired) to the MIC INPUT jack for passthrough to a mixer or other input device. MIC INPUT: XLR balanced jack for connection to a condenser or dynamic microphone. gnd/lift: Header jumper for connecting or disconnecting the XLR ground (pin 1) to cassis ground. The PM50s is configured at the factory with pin 1 connected to ground. MONITOR INPUT: 1/4" TRS stereo jack for connection to a line source such as a mixer monitor/auxiliary output, cassette player output, CD player output etc. stereo/mono: Header jumper to configure the Monitor input for TRS stereo or TS mono operation. The PM50s is configured at the factory in MIC MIC MONITOR stereo mode. THRU INPUT INPUT WARNING In order to use this system safely, avoid prolonged listening at excessive sound pressure levels. Please use the following guidelines established by the Occupational Safety Health Administration (OSHA) on maximum time exposure to sound pressure levels before hearing damage occurs. USING THIS SYSTEM AT EXCESSIVE VOLUMES CAN CAUSE PERMANENT HEARING DAMAGE. USE AS LOW A VOLUME AS POSSIBLE 90 dB SPL at 8 hours 95 dB SPL at 4 hours 100 dB SPL at 2 hours 105 dB SPL at 1 hour 110 dB SPL at 1/2 hour 115 dB SPL at 15 minutes 120 dB SPL - avoid or damage may occur It is difficult to measure the exact Sound Pressure Levels (SPL) present at the eardrum in live applications. [. . . ] MONITOR VOLUME: Adjusts the level of the incoming signal from the Monitor Input. MIC VOLUME: Adjusts the level of signal coming from the MIC INPUT. HEADPHONE OUTPUTS: One 1/4" Stereo jack and one 1/8" (3. 5mm) jack for connection to stereo headphones or earphones. gnd lift ster mon PERSONAL MONITOR AMP PM50s MIC LEVEL 9 - 15 VDC PHONES pwr MONITOR LEVEL [. . . ]