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dbx IEM, User Manual

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®

Getting Started

Section 1

IEM

5

parameters on a page can be adjusted, and by pushing the 

NEXT PAGE

and 

PREV PAGE

but-

tons all the compressor parameters can be accessed. (for a complete list of compressor parame-
ters please see Section 3, Software Operations).  The different bands of the multiband compres-
sor can be accessed by pressing the 

COMPRESSOR

button.  Each additional push of the

COMPRESSOR

button allows access to the next band.

As you have seen, by using the multiband compressor/limiter along with the other tools avail-
able in the IEM Processor, you will be able to create a realistic sounding, and more controlled
in-ear monitor mix. 

IEM User Manual

Summary of Contents for IEM

Page 1: ... IEM In EarMonitor PROCESSOR User Manual ...

Page 2: ...H A POWER CORD WARNING THIS APPLIANCE MUST BE EARTHED The cores in the mains lead are coloured in accordance with the following code GREEN and YELLOW Earth BLUE Neutral BROWN Live As colours of the cores in the mains lead of this appliance may not correspond with the coloured markings identifying the terminals in your plug proceed as follows The core which is coloured green and yellow must be conn...

Page 3: ...i VARNING Explosionsfara vid felaktigt batteribyte Använd samma batteri typ eller en ekvivalent typ som rekommenderas av apparattil lverkaren Kassera använt batteri enligt fabrikantens instruk tion IMPORTANT SAFETY INSTRUCTIONS ELECTROMAGNETIC COMPATIBILITY This unit conforms to the Product Specifications noted on the Declaration of Conformity Operation is subject to the fol lowing two conditions ...

Page 4: ...ection 4 Detailed Parameters 4 1 Multiband Compression 20 4 2 Multiband Limiting 22 4 3 Peak Limiting 23 4 4 EQ 23 4 5 XOver 25 4 6 Stereo Adjust 25 4 7 Reverb 25 Section 5 Utilities 5 1 Misc 28 5 2 MIDI Channels 28 5 3 MIDI CC Map 28 5 4 MIDI Program Changes 29 5 5 SYSEX Program Dump 29 5 6 SYSEX Bulk Dump 29 5 7 A D Calibrate 30 Section 6 Application Guide 6 1 Mixer to IEM to In Ear Transmitter ...

Page 5: ...INTRO CUSTOMER SERVICE INFO What is IEM WARRANTY INFO INTRODUCTION IEM ...

Page 6: ... offered in the IEM Lexicon Reverb Algorithms 48 bit internal dynamics signal path for increased headroom and low level resolution Patented TYPE IV A D Conversion system with TSE 4 band crossover with variable slopes 4 band stereo Compressor and limiter with classic dbx Compression 5 band EQ Hi and Lo shelves 3 band fully parametric PeakStopPlus limiting Stereo adjust to control your stereo image ...

Page 7: ... free from defects in materials and workmanship under normal use and service 3 dbx liability under this warranty is limited to repairing or at our discretion replacing defec tive materials that show evidence of defect provided the product is returned to dbx WITH RETURN AUTHORIZATION from the factory where all parts and labor will be covered up to a period of two years A Return Authorization number...

Page 8: ...Introduction IEM User Manual iv IEM ...

Page 9: ... Getting Started Section 1 IEM ...

Page 10: ...s Analog Input Output Connectors Each analog channel features both XLR and 1 4 TRS electronically balanced connections They may be used in a balanced or unbalanced configuration Analog Input and Output Level Controls These controls adjust the analog audio levels of the IEM at the input and output stages Note that the analog output level controls do not affect any digital processing The IEM is desi...

Page 11: ... the most useful tools available in the IEM for setting up a proper compression curve is the curve window In the curve window you can see the combined effects of dynamics related parameters expressed in a graphical format The figure below shows the different parts of the curve window you will see as you edit the compressor and limiter func tions of the IEM When working with the EQ the curve window...

Page 12: ...AGE buttons to move between different crossover points The slope can be changed by pushing the DATA WHEEL to move to the slope parameter line Turning the DATA WHEEL changes the slope of the crossover Changing the crossover slope changes the way the frequency bands interact For example a broader slope e g 6 dB Octave allows the adjacent bands to have much more interaction than a slope of 18 dB Octa...

Page 13: ...Section 3 Software Operations The different bands of the multiband compres sor can be accessed by pressing the COMPRESSOR button Each additional push of the COMPRESSOR button allows access to the next band As you have seen by using the multiband compressor limiter along with the other tools avail able in the IEM Processor you will be able to create a realistic sounding and more controlled in ear m...

Page 14: ...Getting Started 6 Section 1 IEM IEM User Manual ...

Page 15: ... NAVIGATION Section 2 IEM ...

Page 16: ...atio Gain Attack Hold Release Page 1 Page 2 Page 3 Control of each of the bands within the IEM s multiband dynamic modules is made possible in two different ways You may either use the All page or individual band adjustments The All page is signified by a large All seen where the program number would normally be Adjusting settings in this page will adjust the settings in all four bands as a group ...

Page 17: ... Page or Prev Page successively until arriving at the desired Page Limiter On Loc Off Threshold Attack Hold Release OverEasy Auto On Off Band 1 On Off Threshold Attack Hold Release OverEasy Auto On Off Band 2 On Off Threshold Attack Hold Release OverEasy Auto On Off Band 3 On Off Threshold Attack Hold Release OverEasy Auto On Off Band 4 On Off Threshold Attack Hold Release OverEasy Auto On Off 2 2...

Page 18: ...the Pages by depressing Next Page or Prev Page successively until arriving at the desired Page Band 1 FC Slope Level Band 2 FC Q Level Band 3 FC Q Level Band 4 FC Q Level Band 5 FC Slope Level Edge 2 FC Slope Edge 3 FC Slope EQ On Off Pos Pre Post Type Edge 1 FC Slope Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 2 3 Navigating the EQ Section 2 4 Navigating the X over Section ...

Page 19: ... arriving at the desired Page St Adj On Off Balance M S Page 1 STEREO ADJUST 2 5 Navigating the STEREO ADJUST section REVERB Navigate through the Pages by depressing Next Page or Prev Page successively until arriving at the desired Page Spread RTC Rolloff Reverb Off Type Reverb Time Mix Page 1 Page 2 Reverb 2 6 Navigating the REVERB section ...

Page 20: ...y Navigate through the Pages by depressing Next Page or Prev Page successively until arriving at the desired Page Limiter Limiter Limiter Limiter Limiter MIDI CH Sysex Ch Merge On Off Receive MIDI Prg as Prg A D Cal Bulk Dump Dump Setup Type Limiter Contrast AutoLoad MtrSpeed Page 10 Limiter Input Clock SRC Page 1 Limiter Output BNC Freq Page 2 Limiter DigIn Ch 1 DigIn Ch 2 HighPass on off Page 3 ...

Page 21: ...SOFTWARE OPERATIONS SOFTWARE Section 3 IEM ...

Page 22: ...s FX chain Saving a program Saving a program is done by following these steps 1 Press the STORE button The screen looks like this 3 At this point you can edit the program name The curve window shows instructions on how to do this Using the DATA WHEEL as a selector and the PREV PAGE and NEXT PAGE buttons as the cursor create the name you want to use then press the store button to save the name 3 2 ...

Page 23: ...n for at least two seconds All digital dynamics modules and reverb are rendered inactive Analog Meters The IEM s analog input meters show the signal after the input controls These analog meters are referenced in dBu The meter will accurately represent the input level only when the input con trols are set to zero TSE Level Meters These meters show that the program material has entered into Tape Sat...

Page 24: ...d meter has three segments The first is the minus sign It indicates that the threshold set in the compressor section is not being exceeded by the program material There is no processing taking place in the compressor section if the threshold is not being exceeded no matter what the other compressor settings are The next part of the thresh old meter is the o It represents the OverEasy range of comp...

Page 25: ...METER MONITOR button twice you are able to access the monitor selection page Use the DATA WHEEL to select at which point you would like to monitor The headphone graphic and arrow change to show the point in the signal chain you are monitoring The text under Monitor Out shows which band and position you are currently selecting As you adjust the dynamic processing within individual bands it helps to...

Page 26: ...Software Operations 18 Section 3 IEM IEM User Manual ...

Page 27: ...DETAILED PARAMETERS PARAMETERS Section 4 IEM ...

Page 28: ... the signal reaches the threshold and reaches full compression after the signal has gone above the threshold This OverEasy compression by its very nature sounds much smoother and more natural and will be used for most applications When it is gentle natural sounding or light com pression that you are looking for the IEM has what we call VariKnee VariKnee gives you ten levels of OverEasy compression...

Page 29: ... is 1 dB over the threshold Gain 20 to 20 dB per band This is used to compensate for the gain lost during compression By using heavy compression on a signal and then boosting the signal with the output gain we can than create a signal that sounds much louder than it was Attack 0 1 m Sec to 200 m Sec per band Attack is how fast the compressor starts to compress the signal after it passes the thresh...

Page 30: ...threshold down below the bulk of the signal level we can then be limiting all the time This will effectively take all the dynamics out of a signal and is used as a form of extra heavy compression OverEasy Off to 10 per band or global There are ten levels of OverEasy that can be used on the IEM s limiters Auto On Off LOC and On Off When auto is turned on the IEM will continuously set the attack hol...

Page 31: ... hold release controls itself Type PkStop or RMS The Type parameter is used to select either the PeakStopPlus or RMS limiter Attack 01 to 200 m Sec This is the speed at which the IEM limiter starts to compress the signal once it has crossed the threshold Set the attack time longer for lower frequency bands and shorter for higher fre quency bands Hold 0 to 500 m Sec Hold is the time the limiter sta...

Page 32: ...The following figure shows the difference between constant and adaptive Q parametric filters Band 1 FC 20 0 Hz to 20 0 kHz This controls the corner frequency for the low frequency shelving EQ band Slope 3 to 12 dB Octave Sets the slope of the shelf Level 12 to 12 dB Amount of boost or cut Adjustable in 1 2 dB steps Band 2 3 4 FC 20 0 Hz to 20 0 kHz This controls the center point for the parametric...

Page 33: ...8 dB Octave per band Your choice of 2 different slopes for each of the 3 crossover points The Stereo Adjust control lets you change the width of the stereo mix St Adj On Off This parameter is used to turn the Stereo Adjust effect on and off Balance 100 to 100 This lets you adjust the panning of your signal from one side to the other 0 is center so 100 becomes extreme left and 100 becomes extreme r...

Page 34: ...cay time of the reverb algorithm Mix 0 to 50 This parameter is used to control the amount of reverb that is mixed into the signal path Mix changes are made in 5 increments Spread 0 to 10 The Spread parameter controls the length of early reflections RTC Room Time Constant 1 00 to 8 00 kHz The RTC parameter is used to simulate room absorbtion Rolloff 1 00 to 8 00 kHz The Rolloff parameter is used to...

Page 35: ...UTILITIES UTILITIES Section 5 IEM ...

Page 36: ...ctions are OFF 1 16 OMNI Merge MIDI merging allows any incoming MIDI data to be merged with MIDI data generated by the IEM This merged data will then be transmitted to the MIDI out port Selections are ON OFF MIDI The IEM has been engineered to provide the user with a mind boggling array of MIDI control lable parameters This means that once you have set up your MIDI device it will control the same ...

Page 37: ...l setup This is done through MIDI System Exclusive data protocols System Exclusive data or SYSEX as it is often called can be shared between two IEM s by simply connecting the MIDI Out of one IEM to the MIDI In of the other To ensure data integrity the two IEM s should be using the same software version the version is displayed when the unit powers up Data can also be sent to an external MIDI reco...

Page 38: ...lowing text will appear in the third parameter area A D CAL FAIL If this happens you should turn the IEM off then back on If the problem persists call dbx technical support at 1 801 568 7660 for assistance Call after the unit is allowed to warm up to operating temperature approx 10 min utes IEM User Manual ...

Page 39: ...APPLICATION GUIDE APPLICATIONS Section 6 IEM ...

Page 40: ...er Software 1 Once signal is passing through the unit adjust levels on the front panel of the IEM 2 Make adjustments to each individual effect by pressing each respective effect button and then proceed to make parameters adjustments accordingly 6 1 Mixer to IEM Out Stereo Mix Output 1 In IEM Input Ch 1 Out Stereo Mix Output 2 In IEM Input Ch 2 Out IEM Ch Ch1 Out IEM Ch 2 In In Ear Trans Input Ch 1...

Page 41: ...and 2 of the Wireless Transmitter Software 1 Once signal is passing through the unit adjust levels on the front panel of the IEM 2 Make adjustments to each individual effect by pressing each respective effect button and then proceed to make parameters adjustments accordingly 6 2 Mixer to IEM with Bandpass Sub Out Stereo Mix Output 1 In IEM Input Ch 1 Out Stereo Mix Output 2 In IEM Input Ch 2 Out I...

Page 42: ...Application Guide 34 Section 6 IEM IEM User Manual ...

Page 43: ... Appendix IEM ...

Page 44: ...he PROGRAM button during power up UNTIL CHG RESTART appears on the LCD Select Startup Program with the encoder Press PROGRAM again to load the selected program The IEM s controls may also be locked effectively disabling the front panel Pressing and holding the UTILITY button while powering on the IEM displays an instruction screen telling you to press the PREV PAGE button to toggle the locked stat...

Page 45: ...e don t take into account the practical headroom available The max signal to noise specification of analog tape is measured by defining the max signal as the point where a given signal level and fre quency produces a given percent Total Harmonic Distortion THD typically the level at which a 1 kHz signal produces 3 THD In actual use the signal can easily exceed this max signal level by 5 10 or even...

Page 46: ...ned digital systems have a wide linear region compared to analog tape and the dynamic range of A D converters has improved significantly in recent years The dbx Type IV Conversion System takes advantage of this and utilizes the top 4 dB of the A D converter s linear dynamic range to create a logarithmic overload region This allows high level transient signals passing far above the point where the ...

Page 47: ... this density of digital codes to represent more input dynamic range in this region Another advantage of the logarithmic mapping of our dbx Type IV Conversion System is that it preserves the high frequency detail of the signal in the overload region Figs 3a through 3d illustrate what happens when you over load an A D converter without Type IV Fig 3a shows an input signal having both low frequency ...

Page 48: ...B IEM IEM User Manual Figure 3b Signal of Fig 3a Going Beyond the A D Clip Level Amplitude Time A D Clip Level A D Clip Level Figure 3a Signal Having Low and High Frequency Content Amplitude Time TypeIV White Paper ...

Page 49: ...ral sound With Type IV enabled you will get a more accurate and pure representation of the original wide dynamic range signal You will absolutely agree that we really do give you something for nothing We give you peace of mind knowing that you never have to worry about clipping your A D again And when you listen to the noise floor of your A D you ll realize that we never compromise your noise perf...

Page 50: ...e screws in the reverse order Fig C 1 QUANTUM II JACK BOARD QUANTUM II JACK BOARD COMPONENT SIDE COMPONENT SIDE 80 6379 P1 80 6379 P1 JUMPERS IN RELAY BYPASS JUMPERS IN RELAY BYPASS JUMPERS OUT RELAY MUTE JUMPERS OUT RELAY MUTE J1 J1 J2 J2 WA1 WA1 H1 H1 L1 L1 J5 J5 R1 R1 J3 J3 J4 J4 J6 J6 J7 J7 J8 J8 L2 L2 L3 L3 L4 L4 L5 L5 L6 L6 L7 L7 L8 L8 R2 R2 R3 R3 R4 R4 WA2 WA2 WA3 WA3 WA4 WA4 D112 D112 K3 K...

Page 51: ...e format unless noted otherwise F7 h System Exclusive End Message byte Procedures In the following section SYS_HEAD refers to a valid System Exclusive header The System Exclusive header starts with the System Exclusive begin message byte and includes all bytes through the device id byte F7 h is the System Exclusive Message End byte All SYSEX numbers in the format definition of each procedure are g...

Page 52: ...ograms into the IEM A software version number is imbedded in the data Receive Key Scan Code 54h SYS_HEAD 54 h cc F7 h cc Code for the Key Scan note there is only one byte not two The Receive Key Scan Code procedure is used to emulate a button press on the front panel of the IEM See the Key Scan Code Maps for a list of Key Scan codes The device will respond with a Receive Key Accepted procedure Enc...

Page 53: ...gram Dump Version 00 01 00 01 Program Type and Setup Number 00 00 00 00 Setup Transmit Count Lo Bytes Hi Bytes 00 0A 00 06 12 Character Setup Name dynamic 00 31 00 3A 00 52 00 76 00 62 00 20 00 32 00 3A 00 47 00 74 00 52 00 76 Null to indicate end of Character String 00 00 Misc Program Data too dynamic to document 00 07 00 00 00 06 00 00 00 03 00 06 00 03 00 32 00 08 00 03 00 00 00 00 00 02 00 04 ...

Page 54: ...nked Band2 Compressor On Off cc 45 Linked Band2 Compressor OverEasy cc 46 Linked Band2 Compressor Auto On Off cc 47 Linked Band2 Compressor Threshold cc 48 Linked Band2 Compressor Ratio cc 49 Linked Band2 Compressor Gain cc 50 Linked Band2 Compressor Attack cc 51 Linked Band2 Compressor Hold time cc 52 Linked Band2 Compressor Release cc 53 Linked Band3 Compressor On Off cc 54 Linked Band3 Compress...

Page 55: ... EQ Band1 Slope cc 109 Linked IEM Parametric EQ Band1 Lvl cc 110 Linked IEM Parametric EQ Band2 Freq cc 111 Linked IEM Parametric EQ Band2 Q cc 112 Linked IEM Parametric EQ Band2 Lvl cc 113 Linked IEM Parametric EQ Band3 Freq cc 114 Linked IEM Parametric EQ Band3 Q cc 115 Linked IEM Parametric EQ Band3 Lvl cc 116 Linked IEM Parametric EQ Band4 Freq cc 117 Linked IEM Parametric EQ Band4 Q cc 118 Li...

Page 56: ...n Buds 4 Small Hall 5 No Comp 6 Large Hall 7 IEM No Verb 8 Acoustic 9 Room IEM 10 Heavy Comp Factory Programs 1 Template 2 Natural 3 Rockin Buds 4 Small Hall 5 No Comp 6 Large Hall 7 IEM No Verb 8 Acoustic 9 Room IEM 10 Heavy Comp Factory Presets IEM User Manual ...

Page 57: ...vertor Dynamic Range 114 dB typical A weighted 22 kHz bandwidth 112 dB typical unweighted 22 kHz bandwidth Type IV Dynamic Range Up to 127 dB with transient material A weighted 22 kHz bandwidth Up to 125 dB with transient material unweighted 22 kHz bandwidth Typically 119 dB with program material A weighted 22 kHz bandwidth Typically 117 dB with program material unweighted 22 kHz bandwidth THD Noi...

Page 58: ...Sandy Utah 84070 Phone 801 568 7660 Fax 801 568 7662 Int l Fax 801 568 7583 Questions or comments E mail us at customer dbxpro com or visit our World Wide Web home page at www dbxpro com A Harman International Company 18 0439 B ...

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