MP222 Studio Pro Preamp
Contents
1.2. 1 dB 14 dB 20 dB 70 dB 30 mA 48 VDC 4 Female XLR 5 5 X 2 1 mm tip negative 1 8 3 5mm stereo out 2 Male XLR 6 75 w x 5 125 d x 1 75 h 1 75 Ibs SCHEMATIC DESCRIPTION m L FRONT PANEL a a i sg g zo lh g ca z 9 8 3 2s oe 5 b E 5 x 4 g s Hgy EA Be olay ROLLS MP222 ese ey A gt 6883 85 ey www rolls com By MADE IN USA ESS gog OES RoE 2253 2 23 LEVEL row aw of 7 K ees 5 EA z vr PHASE CUT PHASE CUT 2 e nie sls e n gt REEN o 8 oa at g on a 3 d a38 5 z EN es8 7 7 3 EN 7 ge g 80Hz 30 dB 80Hz GH S n No 38 8 AR Studio Pro panes i INPUT Two Channel microphone Preamp pwr ig x s 3H He Af i 2 FRONT PANEL DESCRIPTION H S oS s 3 85 Heer H H a ae E sist ie ds Note Channel One descriptions are identical to Channel Two oS 3 3 Bue O2aN IT 5 a gt Jip 4 i yi i ia 2 j AS INPUT g by F 2 iT Standard XLR type balanced input pin 2 is hot for Microphones ae 3 aTe 30 dB Pad a ss This switch changes the level of the input When in it attenuates the input level a a X a a down by 30 dB _ EN EN i J gZ
3. For warranty registration please visit the rolls web site at www rolls com ROLLS CORPORATION SALT LAKE CITY UTAH 10 11 MP222 Studio Pro Preamp oaan ROLLS MP222 MADE IN USA A www rolls com 48V LEVEL LOW LEVEL LOW PAD sin PHASE CUT PAD ae e i yf 4 3 ON 180 core 30 dB OO sort pi 0 to INPUT 2 Studio Pro Preamp Two Channel Microphone Preamp pwr INPUT OUTPUT OUTPUT DUAL pe OUTPUT a CH1 TIP CHANNEL 2 CH2 RING COIRE M1 CHANNEL 1 QUICK START OPERATION GUIDE INTRODUCTION Thank you for purchasing the new MP222 Studio Pro Preamp two channel microphone preamp Although having many possible uses this microphone preamp was designed for studio applications It has a transformer balanced mic input section and many variable options for getting your mic to sound just as you want it to when recording It is great if you are just looking for studio quality mic processing or any application where a high quality mic preamp is needed Please review this manual carefully as it contains important information regarding the proper use of this product INSPECTION 1 Unpack and Inspect the MP222 package Your MP222 was carefully packed at the factory in a protective carton None theless be sure to examine the unit and the carton for any signs of damage that may have occurred during shipping If obvious physical damage is noticed contact the carrier immediately to make a damage claim W
4. See FRONT PANEL section of this manual for more info on the PAD switch Improper PAD switch setting will make the unit seem very low in overall volume 30 dB to be exact Make sure if you are using a Mic that the PAD switch on the front of the MP222 is set to the outward position OFF and if you are using a Line level input signal that the switch is in the inward 30 dB setting ON If you are using the DUAL OUTPUT connect it to the Input of your recording device that also uses a stereo 1 8 3 5mm Tip Ring Sleeve plug Follow the silk screening on the back of the of the unit The tip is connected to channel 1 and the ring is connected to channel 2 This will make channel 1 effectively the left output and channel 2 the right output going into a stereo application Connect the Rolls PS27s power supply Once your MP222 is properly connected the pwr LED on the front panel will light If you are using condenser type microphones apply the phantom power to the desired channels Test the microphone levels by speaking into the microphones at a normal operating volume and adjust the Mic Level controls until you achieve desired levels Adjust each control to the desired setting Adjust the PHASE and LOW CUT as desired These can be set to any level com bination that is desired in both mic or line level Just do what sounds best to you For best results we recommend recording a couple of test runs to ensure you have proper levels set
5. e suggest saving the shipping carton and packing materials for safely transporting the unit in the future 2 Please visit our web site at www rolls com click on the Register Your Warranty Here text and follow the instructions to register your MP222 Disclaimer This Quick start guide assumes that the user has a basic knowledge of audio connections It also assumes that the user has had some experience with record ing or high end preamps Training and operation is the dealers responsibility At Rolls we do not sell directly to customers We have factory authorized dealers and it is the dealers respon sibility to gather your equipment list and recommend proper products to the consumer Do not call the Rolls factory and expect help with your setup We rely on our dealers to do such work There is only so much that can be done over the phone so PLEASE CONTACT YOUR LOCAL DEALER WITH QUESTIONS If you have purchased you item online or used you are on your own WE HIGHLY RECOMMEND THAT IF YOU ARE NOT FAMILIAR WITH SUCH PRODUCTS TO PLEASE BUY THEM FROM A REPUTABLE FACTORY AUTHORIZED DEALER THAT OFFERS CUSTOMER SUPPORT Input Impedance mic Output Impedance THD Noise S N Ratio Frequency Response Max Output Level Max Input Level Max Gain Current Draw Phantom Power Input Connectors DC Power Jack Output connectors Size Weight SPECIFICATIONS 600 Ohms or greater XLR 50 Ohms 02 110 dB 20 Hz 30 kHz 0
6. lanced outputs The output circuitry has a very wide range and can accommodate most mic XLR inputs If you select the proper set ting for the 30 dB switch on the front of the MP222 MIC LINE SWITCH This is for setting up the output XLR s for either Mic or Line level The mic line switch will effect the XLR and DUAL OUTPUT levels IN LINE OUT MIC DUAL OUTPUT Tip Ring Sleeve stereo 1 8 3 5mm jack for connection to a computer or other stereo type inputs The tip of the jack is connected to channel 1 and the ring is connected to channel 2 This will make channel 1 effectively the left output and channel 2 the right output going into a stereo application 15 VDC JACK For connection to the Rolls PS27s 15VDC power supply CONNECTION OPERATION Connect microphones to the MP222 via balanced XLR cables Make sure that you are using the proper Mic Line switch setting If the output level of the MP222 seems very low or very loud it might be that you are using the wrong mic line switch setting If you are using a Mic output level the mic line switch on the back of the MP222 is set to the Mic setting and if you are using a Line level output signal that the switch is in the line setting The mic line switch will effect the XLR and DUAL OUTPUT levels IN LINE OUT MIC Make sure that the input PAD switch is in the proper setting Start with the PAD switch in the outward position OFF for most Microphone applications and adjust it as needed
7. z z e es a 4 al PHANTOM POWER 48V ae a Z5 i Ak Turns on the internal 48 volt power supply when using phantom powered micro i i tk 5 I phones It should be turned off when not in use The Phantom Power switch is a s s alte o EdE g X3 IA great way to turn off or mute a condenser mic If you are recording and want to ae 7 Xs 7 g3 35 i turn your mic off this is the best way to mute it for either short or long periods of a NE o Z z i by g Qoa g x time IF sea i ie ar Cae Ld 4 Tele rales Bs 88 z LEVEL z lt Saeed a pi i pa a Sets the output level as desired for best signal to noise ratio it should be z a 2 By 2 i k oT 3 z Hi T eM set in the middle to start Wy o gf alesis I is a ee Ff a gt T 2i o PERET 7 Aau IN Z ux gt lk g This is a variable setting from 0 or in phase to 180 degrees out of phase and Ho oH S Je eee he everything in between by adjusting the level of the knob 5 Od 4 1X z iy ee LOW CUT This is a high pass filter that when depressed cuts the low end of the signal at 80Hz REAR PANEL OUTPUT OUTPUT DUAL E OUTPUT E CH1 TIP a CHANNEL 1 CHANNEL 2 CH2 RING ROLLS INPUTS 1 2 XLR balanced inputs for connection to any standard dynamic or condenser microphone The input circuitry has a very wide input range and can accommodate almost any mic to line level signal if you select the proper setting for the Mic Line switch OUTPUTS 1 2 XLR ba
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