ROLLS PM350B
Owner's Manual

INTRODUCTION Thank you for your purchase of the PM350b Personal Monitor Mixer Plus. This unit mixes a microphone signal with a 1/4" Tip-Ring-Sleeve stereo or mono instrument level signal and a 1/4" TRS stereo or mono monitor signal. The Mic Input and Thru jacks have a switchable ground lift, as do the 1/4" TRS Instrument Outputs. The instrument input connects to two independent 1/4" TRS balanced outputs via electronic balancing circuits. The PM350b is designed for performers who want to monitor their own sounds, such as their vocals and instruments, with the main mix via headphones or earphones. It's very popular with drummers who need to mix a click track with a monitor signal. Church choir singers love the PM350b to monitor their voices over the musicians. The PM350b is shipped with an external AC adapter. INSPECTION 1. Unpack and inspect the PM350b box and package. If obvious physical damage is noticed, contact the carrier immediately to make a damage claim. We suggest saving the shipping carton and packing materials for safely transporting the unit in the future. 2. Please complete the Warranty Registration Card and return it to the factory. TABLE OF CONTENTS INTRODUCTION INSPECTION TABLE OF CONTENTS DESCRIPTION CONNECTION OPERATION SCHEMATIC SPECIFICATIONS WARRANTY 1 1 1 2 3 4 5 6 BACK COVER
This symbol indicates that there are important operating and maintenance 1 instructions in the accompanying this unit. literature

SPECIFICATIONS Max Input Level: Inst. Input Impedance: Inst. Output Freq. Response: Output Impedance, Hdphn: Output Impedance, Inst.: Gain: Hdphn Freq. Response: S/N Ratio: Power: Size (W x H x D): Weight: -20 dB XLR, +40 dB Line, +15 dB Instrument 50K ohms 10 - 30 kHz +/- 3 dB 10 ohms 2 ea; 100 ohms balanced 20 dB 1/4", 50 dB XLR 20 - 20 kHz 90 dB 9 - 16 VDC 4.5" x 3.3" x 1.5" 1 lb (.45 Kg)

WARNING
USING THIS SYSTEM AT EXCESSIVE VOLUMES CAN CAUSE PERMANENT HEARING DAMAGE. USE AS LOW A VOLUME AS POSSIBLE
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.

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. In addition to the volume setting on this Personal Monitor unit, the SPL in the ear is affected by ambient sound from floor wedges or other devices. The isolation provided by the fit of quality earphones is also an important factor in determining the SPL in the ear. Follow these guidelines in the use of this product to protect your ears from damage: 1. Turn up the volume only to the point where hearing is comfortable. 2. Ringing in the ears may indicate that the levels are too high. Lower the volume level. 3. Have your ears checked by an audiologist on a regular basis. If you experience wax buildup in your ears, stop using the system until an audiologist has examined your ears. 4. Wipe the earphones with an antiseptic before and after use to avoid infections. Stop using the earphones if they are causing great discomfort or infection.

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