Download Rolls RDB104 Music Mixer User Manual
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RPQ160b Parametric Equilizer LOW SHELF 50 100 200 30 20 HIGH SHELF 4 6 10 LEVEL 0 200 2 600 100 1.5 MADE IN USA FREQ 400 WIDTH 16 FREQ 800 HZ 500 166 LEVEL 1.1k FREQ 800 166 900 KHZ 30 1 CLIP -12 dB +12 70 HZ 1.5k 3 ACTIVE 300 300 LEVEL 1.1k WIDTH 0 800 FREQ 2.1k 400 1.8k WIDTH 0 800 FREQ 2.1k 400 1.8k 3.3k WIDTH LEVEL 0 2k FREQ 4k 900 7k 6k .3 -15 dB +15 OCT WIDTH LEVEL 0 12k 150 HZ 3k 3 .3 -15 dB +15 OCT 300 HZ PARAMETRIC EQUALIZER RPQ160b dB +15 150 HZ 3k 3 .3 -15 dB +15 OCT 300 HZ 10k 3 .3 -15 dB +15 OCT 600 HZ 20k 3 .3 -15 dB +15 OCT POWER www.rolls.com Rolls Corporation Salt Lake City, UT 06/09 3.3k 7k 400 www.rolls.com EVEL 0 LEVEL 0 QUICK START OPERATION GUIDE 10k 2 1 RCAX2 J2A 2 1 3 WIDTH 3 WIDTH * R47 C18 10U P100K 2 R37 R1 R2 3 2 U5A P4A U6A 4560 10K P100K X2 P7A 1 1 2 P4B C15 2 2 P1A P100KC 3.3K R34 4.7K R44 P7B 150 - 3K 5 6 6 5 6 +12V Vbias +12V U6B 7 R46 47K R45 33K 4560 R36 47K R35 33K 4560 +12V U5B U1B 7 4560 P100KC P1B 4 LOW SHELF 120PF C16 R41 22K BAND 2 4.7K 5 120PF C12 R31 22K 6 R7 HPF C4 .1 P100K X2 FREQ 5 70 - 1.5K P100K X2 470PF R43 4.7K R42 22K R6 33K BAND 1 .27 R5 1K 1N4148 C3 FREQ 5 R38 * R33 4.7K 1 C11 .001 R32 22K R28 * 4560 C17 .27 C13 .47 R40 P100K X2 U1A R3 10K 1% 4560 R30 10K Vbias 10K 1% 10K 1% P8 * C14 10U P100K 2 P5 120PF C1 10U C35 10U C34 R4 10K 1% 4 XLR F PC 4 5 8 J1 PHONE 1/4 1 3 3 1 CR1 4 6 8 120PF 7 Vbias 10K P11 * * R67 C26 10U P100K WIDTH R57 C22 10U P100K P14 Vbias WIDTH 10K R8 R9 4.7K 3 2 10K R50 5 6 3 2 P100K X2 P13A 1 R63 3.3K 2 C23 22K C20 120PF P13B P100K X2 650 - 20K R64 3.3K BAND 4 FREQ 5 120PF R62 R58 * P100K X2 300 - 10K P10B FREQ 5 R54 3.3K 5 6 P100K P15 +12V 3 5 6 R56 47K R55 33K 120PF C24 R61 22K U7B 1 4560 CUT/BOOST 4560 U2A 120PF C6 +12V R51 22K R13 3 100 2 R14 10K CR3 1N4148 2K R20 BAND 3 C19 220PF C25 .047 10K P100K P9 P100K P12 R53 3.3K 2 C21 .1 4560 U8A R60 P100K X2 P10A 1 R52 22K 7 P100K P6 R12 10K R48 * U2B 4560 +12V R11 10K C5 120PF LDRR D3 Q1 2N3904 OVER LOAD Vbias 4560 U7A P100KW R10 P2 4.7K CR2 1N4148 100K 4 J3 4 1 3 4 C2 1 3 4 6 8 4 6 8 3 4 +12V 7 U8B 1 R66 47K R65 33K 4560 P100KC P3A R15 3.3K CR4 1N4148 2 8 1 3 7 6 JAPDC J6 3 1 R16 DPDT R21 4.7K 4 U3A C31 C39 503 C40 503 +12V 1N4001 1000UF 16V 3 1 D6 1N4001 POWER 4560 1 +12V SW1B 6 DPDT C8 .001 2 * = FACTORY SELECT SW2A 2 3 1DPDT 3 2 LDRR SW1A D2 3.3K 2 .0027 P100KC P3B 4 C7 HI SHELF 5 R19 4 6 C27 503 C42 503 C33 2200U C32 2200U C28 503 D4 1N4001 C41 503 D5 R17 10K R22 10K 5 3 2 10K +12V Vbias 5 6 R23 U4A U4B 1 R26 51 51 Q2 MPSA06 R109 C44 47K 47UF R110 47K 22K R111 4560 4560 7 R24 10U C9 47U C36 5 6 +12V U3B 4560 RCAX2 J2B 7 5968 S 350 W Murray, Utah 84107 Rb Document Number: RPQ160B.SCH RPQ160b PARAMETRIC EQUALIZER Date: 2 April 2009 Size: 3 PHONE 1/4 J4 Rev: B Sheet 1 of 1 C43 10U Vbias J5 XLR JACK M ROLLS CORPORATION 503 C45 Title R108 47K LDBLU D1 R68 10K 47K +12V R107 R27 51 10U C10 3 R25 100K Thank you for your purchasing the RPQ160 Parametric Equalizer. The RPQ160 uses T filters for equalization circuits to avoid the complexity and distortion of state-variable filters. The RPQ160 is a four-band parametric equalizer designed for years of reliable use. Please read this manual carefully to get the best results from your RPQ160. 8 4 8 4 lbs. 2 Weight: 1 Output Impedance: Shelving Slope: Size: Ω (20K balanced) 50Ω 12 dB / Octave 19" x 4" x 1.75" 2 SPECIFICATIONS 4 INSPECTION 1. Unpack and inspect the RPQ160 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. 8 R18 INTRODUCTION SCHEMATIC DESCRIPTION DESCRIPTION REAR PANEL FRONT PANEL MADE IN USA www.rolls.com ROLLS + - PS12 LOW SHELF 50 100 200 30 20 WARNING DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE BACK. NO USER SERVICABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. SERIAL NUMBER CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC - NE PAS ENLEVER BALLANCED 1/4” FREQ 400 600 100 16 KHZ 30 HZ 500 1 FREQ 2.1k WIDTH CLIP -12 dB +12 WIDTH LEVEL 0 300 FREQ 800 166 900 70 HZ 1.5k ACTIVE LEVEL 1.1k WIDTH 0 800 FREQ 2.1k 400 1.8k 3 .3 -15 dB +15 OCT 150 HZ 3k 3 .3 -15 dB +15 OCT 300 HZ BALLANCED 300 E DE CHOC - NE PAS ENLEVER 200 400 www.rolls.com FREQ 800 166 OUTPUTS LEVEL 0 1.5 MADE IN USA L NG DO NOT EXPOSE THIS MENT TO RAIN OR MOISTURE. DUCE THE RISK OF ELECTRIC K DO NOT REMOVE BACK. ER SERVICABLE PARTS . REFER SERVICING TO FIED SERVICE PERSONNEL. HIGH SHELF 4 6 10 2 INPUTS LEVEL 1.1k WIDTH 0 800 400 1.8k 3.3k LEVEL 0 2k FREQ 4k 900 7k 6k WIDTH LEVEL 0 12k PARAMETRIC EQUALIZER RPQ160b +15 150 HZ 3k 3 .3 -15 dB +15 OCT 300 HZ 10k 3 .3 -15 dB +15 OCT 600 HZ 20k 3 .3 -15 dB +15 OCT POWER BALLANCED 1/4” OUTPUT: Balanced XLR and balanced 1/4” and RCA jacks for connection to a mixing board, power amplifier or recording device. INPUT: Balanced XLR and balanced 1/4” and RCA jacks for connection to the output of a mixing board, instrument, or other device with the signal to be processed. CONNECTION Turn off all equipment before making any connections. Mount the RPQ160 in a properly grounded rack, and make sure the rack is properly ventilated. Ambient temperatures should not exceed 113 degrees F (45 degrees C) when the equipment is in use. Connect your RPQ160 using XLR, RCA or 1/4” connectors. Connect the AC power cord to a properly grounded AC outlet. Route the AC power cord away from audio lines. LOW SHELF: High Pass Filter control; adjusts the amount of low frequency rolloff from 500 Hz down to 16Hz for the entire output of the RPQ160. HIGH SHELF: Low Pass Filter control; adjusts the amount of high frequency rolloff from 1 kHz up to 20 kHz for the entire output of the RPQ160. NOTE: THERE IS NO BYPASS SWITCH FOR THE LOW OR HIGH SHELF FILTERS - SIMPLY TURN THE LOW SHELF COMPLETELY COUNTERCLOCKWISE, AND THE HIGH SHELF COMPLETELY CLOCKWISE TO BYPASS THESE CIRCUITS. LEVEL: Adjusts the overall signal level of the RPQ160. NOTE: The following three descriptions are identical for all four bands of equalization. FREQUENCY: Selects the frequency to be boost or cut. The band frequency ranges are listed below: Band 1: 70 Hz to 1.5 kHz Band 2: 150 Hz to 3 kHz Band 3: 300 Hz to 10 kHz Band 4: 600 Hz to 20 kHz WIDTH: (Q): Varies the shape or width of the equalization being boost or cut from .3 to 3 octaves wide. LEVEL: Boosts or cuts the signal of the indicated band from -15 to +15 dB. Power Switch: Applies power to the RPQ160 when the unit is connected to a properly grounded ac outlet. The Power LED will light when the RPQ160 is on. OPERATION OPERATION Cont. The two shelving filters are designed to roll off the frequency response of the Signal; the Low Shelf cuts the frequencies 3 dB at the control’s indicated setting and rolls off below, and the High Shelf cuts the frequencies 3 dB at the indicated setting and rolls of above. The Low Shelf Sweep Diagram shows the response curve of the Low Self filter at its minimum and maximum setting. O dB Set at 16Hz Shown below is the typical symmetrical response curve of a swept parametric band filter with the Frequency control set at 1 kHz, the Level set at +15 and -15 dB, and the Octave control set at .3, .5, 1, and 3. These curves remain consistent over the frequency spectrum, they simply shift to whatever frequency setting is indicated by the Frequency control. The shape is most narrow when the OCT control is set at .3, and is widest at the 3 setting. 20 Set at 500 Hz 15 10 LOW SHELF SWEEP DIAGRAM 5 The High Shelf Sweep Diagram shows the response curve of the High Self filter at its minimum and maximum setting. O dB Set at 30 kHz Amplitude, 5 dB/division 20 40 80 160 320 640 12k 16k 20k Frequency (Hz) -5 -10 -15 -20 50 100 200 600 1k Frequency (Hz) 2k 6k 10k 20k Set at 1 kHz 20 40 80 160 320 640 12k 20k 40k Frequency (Hz) HIGH SHELF SWEEP DIAGRAM Please note that when the Low Shelf is set fully counterclockwise (16 Hz), the filter is essentially bypassed. Similarly, when the High Self control is set fully clockwise (30 kHz), that filter is essentially bypassed. The Level control has a detente at the center (0 dB) position. if the Clip LED is lighting, the Level control may be turned counterclockwise to reduce the gain of the RPQ160, thereby reducing the clipping. If a weak signal is present, the Level control may be turned up (clockwise) to increase the gain. To achieve the maximum signal to noise ratio, the Level should be set 3 dB below the clipping level. This is done by adjusting the Level control with a normal signal present until the Clip LED lights, then turning the Level down to just below the point when the LED goes out. APPLICATIONS The RPQ160’s precise equalization has many applications including school or church gymnasiums, home or professional recording studios, live sound, or musical instruments. When coupled with a spectrum analyzer, the RPQ160 can match exactly the properties of typical acoustic resonances and reflections, and make immediate improvements to any installed system’s amplitude and phase response. Live applications include equalizing trouble spots where a mix may be muddy, too harsh, flat, and even eliminate feedback precisely without affecting the flavor of the overall sound. Recording studios benefit from the RPQ160’s precise equalization in notching out trouble frequencies that need to be removed, or by re-equalizing a final mix.