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dbx PX, User Manual, Page: 45 / 48

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dbx PX User Manual Download Page 45

Summary of Contents for PX

Page 1: ...User Manual Powered Speaker Optimizer Featuring Powered Speakers PX...

Page 2: ...source indicated on the equipment rear panel To reduce the risk of fire or electric shock refer servicing to qualified service personnel or equivalent Safety Instructions Notice For Customers If Your...

Page 3: ...ation of this unit within significant electromagnetic fields should be avoided use only shielded interconnecting cables U K MAINS PLUG WARNING A molded mains plug that has been cut off from the cord i...

Page 4: ...tion 19 3 11 Navigating the Store Section 19 Section 4 Operating Functions 20 4 1 Preset Definition 20 4 2 Navigating Factory Presets 20 4 3 Editing Factory Presets 21 Section 5 Detailed Parameters 23...

Page 5: ...speakers The following are just some of the features of the DriveRack PX DriveRack PX features Stereo Feedback Elimination with 12 feedback notch filters Stereo 28 band Graphic EQ Classic dbx Compres...

Page 6: ...product to the factory for service you MUST first contact Customer Service to obtain a Return Authorization Number No returned products will be accepted at the factory without a Return Authorization N...

Page 7: ...d labor will be covered up to a period of two years A Return Authorization number must first be obtained from dbx by telephone The company shall not be liable for any consequential damage as a result...

Page 8: ...witch This switch selects between 10dBV and 4dBu nominal operating levels When the switch is in the in position the 10dBV operating level is selected When the switch is in the out position 4dBu is sel...

Page 9: ...o enter the first page of the Auto EQ Wizard PRESET RECALL Press and release to return to the preset view showing preset number preset bank user or factory preset name and signal path Press and hold t...

Page 10: ...s make connections prior to applying power to the unit Connect the output from the sending device mixer to one or both of the two XLR input connectors shown below Make output connections from Outputs...

Page 11: ...will also notify the user if any internal clipping is taking place within the unit The following message will appear CLIP Data Wheel The data wheel is used to scroll through the preset menu of the Dri...

Page 12: ...eakers For example if you re using subs and they have a polarity setting make sure they re both set to the same polarity Also if your powered speakers have a Mic Line setting make sure they re both se...

Page 13: ...next to the speaker name to scroll by speaker name Once you have selected your SUB speaker option press the NEXT PG button You will now be given the option of optimizing your main speakers levels wit...

Page 14: ...is Auto Level You will now proceed to Pink the room by adjusting the Pink level The range of bar graph is Inf dB to 20dB Be certain to raise the pink noise level to the level of loudness intended duri...

Page 15: ...e included dbx M2 RTA microphone The display will appear something like this MED You can now select any one of the several different Frequency responses for the Auto EQ The options are Flat 0 and Resp...

Page 16: ...ng the Auto EQ section please refer to the Auto EQ Optimization Tips information located in the Appendix section AFS WIZARD The DriveRack PX also offers its exclusive patented AFS Advanced Feedback Su...

Page 17: ...ic High Ultra Narrow Notch These types pertain to the Q sensitivity and algorithm type The filter is established by using the formula Q Freq divided by Bandwidth This means that a higher Q will produc...

Page 18: ...mode To return to preset mode simply press the PRESET or NEXT PG button For more information regarding feedback elimination please see the AFS parameters of the Detailed parameters section DriveRack...

Page 19: ...age in the currently selected menu SETUP AFS RECALL SUBHARMONIC COMP LIMITER UTILITY PRESET NEXT PG STORE EQ WIZARD UTILITY PREV PG WIZARD NEXT PAGE Moves to the next page in the currently selected me...

Page 20: ...d bandpass filter module navigate through the pages of the selected high pass and bandpass filter module by pressing the Next Page or Prev Page buttons successively until arriving at the desired Page...

Page 21: ...in the currently selected page COMP LIMITER 3 6 Navigating the EQ Section The EQ button toggles through the EQs used in each channel of the selected preset menu PEQ GEQ or Navigating the EQ Section To...

Page 22: ...and hold the UTILITY button Pressing the Data Wheel will select the parameter to be edited 3 9 Navigating the Wizard Section The NEXT and PREV buttons scroll through the pages of selected module Navig...

Page 23: ...eset mode press the STORE button Press the NEXT and PREV buttons to select characters in the preset name Turn the Data wheel to change the selected character Press the Data wheel to toggle between upp...

Page 24: ...routing configurations that have been designed to accommodate common sound reinforcement and installation applications The factory presets offer explanatory titles to help get you up and running in a...

Page 25: ...preset Press and hold to adjust LCD contrast Auto EQ plot selection RTA or GEQ and Sales Banner on off AFS Press and release to enter the AFS editor Press and hold to enter the first page of the AFS...

Page 26: ...eplacing PRESS STORE TO ADVANCE STORE ROCK VENUE U1 DJ Setup Rotate the DATA wheel to select the user preset number to be replaced and press the STORE button again and the existing preset will be repl...

Page 27: ...kup or microphone in phase AFS uses Precision Frequency Detection and state of the art processing to determine the exact portions of a given frequency of your feedback that need to be removed instead...

Page 28: ...In LIVE mode the live filters automatically detect and remove feedback during the performance When all of the live filters have been used they begin to round robin Essentially this means that the firs...

Page 29: ...ssional applications including nightclub and dance DJ mixing theatre and film sound music recording live music performance and broadcasting The Subharmonic Synthesizer module s two separate bands of s...

Page 30: ...the level of a signal abruptly as it passes over the threshold this is called hard knee compression OverEasy soft knee as it is sometimes called is when the volume of the sound is compressed gradually...

Page 31: ...the volume of the sound is limited gradually OverEasy limiting starts to limit before the level of the signal reaches the threshold and reaches full limiting after the level has gone above the thresh...

Page 32: ...and LR12 24 for Linkwitz Riley type with slope of 12 or 24 dB Octave Gain Sets the gain of the selected output band INFdB to 20dB For each Low Pass filter there are two parameters Frequency Adjusts t...

Page 33: ...Mute L R 5 4 3 2 1 0 1 2 3 4 5 Pan 5 4 3 2 1 0 1 2 3 4 5 Pan 5 4 3 2 1 0 1 2 3 4 5 Pan 5 4 3 2 1 0 1 2 3 4 5 Pan 5 4 3 2 1 0 1 2 3 4 5 Pan 5 4 3 2 1 0 1 2 3 4 5 Pan 5 4 3 2 1 0 1 2 3 4 5 Pan 5 4 3 2 1...

Page 34: ...1 2 3 4 5 Pan 5 4 3 2 1 0 1 2 3 4 5 1 2 3 4 10 0 5 10 20 30 5 10 0 5 10 20 30 5 10 0 5 10 20 30 5 Mute L R 5 10 0 5 10 20 30 5 Mute L R 6 10 0 5 10 20 30 5 Mute L R 10 0 5 10 20 30 5 Aux 1 0 2 4 6 8...

Page 35: ...5 4 3 2 1 0 1 2 3 4 5 1 2 3 4 10 0 5 10 20 30 5 10 0 5 10 20 30 5 10 0 5 10 20 30 5 Mute L R 5 10 0 5 10 20 30 5 Mute L R 6 10 0 5 10 20 30 5 Mute L R 10 0 5 10 20 30 5 Aux 1 0 2 4 6 8 10 Aux 2 0 2 4...

Page 36: ...1 0 1 2 3 4 5 Pan 5 4 3 2 1 0 1 2 3 4 5 Pan 5 4 3 2 1 0 1 2 3 4 5 1 2 3 4 10 0 5 10 20 30 5 10 0 5 10 20 30 5 10 0 5 10 20 30 5 Mute L R 5 10 0 5 10 20 30 5 Mute L R 6 10 0 5 10 20 30 5 Mute L R 10 0...

Page 37: ...ctory Presets all Utility settings will be defaulted and all Security settings will be defaulted Pressing the Preset button will abort the Factory Reset sequence and the unit will reset normally Syste...

Page 38: ...en press the AFS button to continue booting in the selected state The System Unlocked state allows normal operation The System Locked state is the complete lockout state No user button input of any ki...

Page 39: ...nced RF filtered Impedance 120 Max Output Level 20dBu A D PERFORMANCE Type dbx Type IV conversion system Dynamic Range 110dB A weighted 107dB unweighted Type IV dynamic range 123dB with transient mate...

Page 40: ...ry different microphone positions and adjust the location of your speakers then repink the room for a more effective Graphic EQ adjustment Adjust Output Gains If your system setup or the response you...

Page 41: ...Mono Right Mic Input Outputs Stereo Compressor AFS Notch Filters SubHarmonic Synth 3 Band PEQ 2 Band PEQ PeakPlus Limiter PeakPlus Limiter High Pass and Band Pass Filter Section Stereo Mono Pink Nois...

Page 42: ...ge speakers with 2 JBL PRX518 powered subwoofers EON10G2M118 2 JBL EON10G2 powered full range speakers with 1 JBL JRX118 powered subwoofer EON10G2S118 2 JBL EON10G2 powered full range speakers with 2...

Page 43: ...level Amplifiers are fixed gain devices turning down the amplifier input levels does not change the potential output of the amplifier it only requires more input voltage to get full output power Many...

Page 44: ...PX and turn on the limiter for each output Make sure that the threshold is all the way up to 20dB Now slowly reduce the threshold until the clip indicator of the powered speaker turns off You have suc...

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Page 48: ...th Sandy Parkway Sandy Utah 84070 Phone 801 568 7660 Fax 801 568 7662 Int l Fax 801 568 7583 E mail us at customer dbxpro com or visit us on the web at www dbxpro com A Harman International Company 18...

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