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1. adt audio la PDF Version User Manual MS Direction Mixer with elliptical Equalizer and MS Equalizer W731 V700 Mastering Modules MS Direction Mixer with MS EQ Home V700 Mastering Home analoge digitale Tonstudiotechnik Karl J ngling Inh Dipl Ing Gerd J ngling The M S Direction Mixer with M S EQ W731 is available in different versions Custom control ranges for several controls are possible as well as different versions of the faceplate and the control knobs The modules are available with electronically balanced and transformer balanced inputs and outputs For a general information of the module please change over to the MS Direction Mixer with MS EQ Homepage 03 ee ELLIPTIC EQ fo 2 I Input Operation Mode L R or M S When the M S switch 1 is pressed the inputs expect a M S stereo signal if not the input mode is Left Right stereo Output Operation Mode L R or M S When the M S switch 2 is pressed the outputs deliver a M S stereo signal if not the output mode is Left Right stereo Base Width Control The Base Width is controlled in the internal M S chain In the 0 position all to the left all spatial components of the stereo signal are removed The output signal is mono and appears on both channels left and right with the same level At the center position 1 0 100 the base width remains unchanged Depending on the version of the module the control range for enhanced base width is differ2. d eq to optimize the entire setting g These settings can also alter the left right balance See the for details on that Check the left right balanced after changing settings and use the Direction control 4 to compensate any differences h There are endless possible settings of course Therefore only some notes at this point using the MID and HI EQ can be more efficient than the BASE control Try to enhance the base with the eq s and reduce the setting of the base control at the same time Very often it is possible to improve the stereo image just by using the hi eq with an appropriate setting This will not affect the mono compatibility that much high settings of the Base control that enhances the entire audio band have a lot more influence on the mono compatibility than the equalizers when you have a nice stereo setting but the mono signal is not acceptable try to use the elliptical equalizer with frequency settings up to 1 kHz It is often possible to regain some mono compatibility with such a high setting of the EEQ additional Equalizer Bands The W731 has an insert point that allows to extend the module with the M S equalizer W785MS This eq adds 5 eq bands that can be used in the S or the M chain alternatively In addition each band can used in the M and the S chain in parallel This mode is very special When boosting a frequency in the S mode it is cutted with the same but reversed curve in the M Chain Control Ran
3. ent The mastering version on the module usually has a maximum range of 1 5 150 The recording version for use with microphones comes with a maximum range of 3 0 300 Custom ranges are possible Using the range above 100 the signal seems to be wider than the distance of the speakers At the same time some signal components appear to be in a room behind the speakers Direction Control The direction control is located in the internal M S chain just like the base width control The behaviour of this control is different from a normal stereo balance control While a stereo balance control cuts off the right channel when the control is set all to the left the direction control reduces the base width when turned to the right and delivers a mono signal from the addition of both stereo channel in the end position The control ranges depend on the version of the module See the box to the right for details Custom ranges are possible Bypass Switch The DIR ON switch inserts the entire module If DIR ON is not pressed the unit is hard bypassed Frequency Control of the elliptical Equalizer The elliptical EQ reduces the base width of low frequencies while the mid and high range remains unaffected The control determines the frequency where the crosstalk between left and right is 15 dB A setting of 300 Hz is not audible but reduces and Notes and Pecularities Due to the seperate mode selectors for the input and output for
4. ession of a hole in the middle of the stereo base In addition the mono compatibility is very bad you will loose a lot due to phase erasement when adding the channels to mono b Switch on the elliptical EQ 6 With the 300 Hz setting of the frequency control 7 there will be no audible difference The EEQ reduces the crosstalk at 300 Hz to 15 dB Since human ear cannot locate anything below 300 Hz this setting just centers the bass range which is of advantage for the mono compatibility when using enhanced base width Even with extreme settings for the base width only the mid and high range will be erased in mono while the centered low frequency range remains unaffected c Switch on the EQ 16 Start with the low EQ 15 and try to boost the kick drum amp bass guitar a little to bring these leading instruments more into the center Use a center frequency between 70 and 100 Hz and Q factor that limits the boost to the base frequencies of the instruments 12 o clock to 3 o clock d Now add some high frequency 9 until you hear that the stereo image becomes wider an deeper Use the frequency control 8 to optimize this setting e You are supposed to compare the original with the modified setting at this point at the latest Make sure that the setting is an improvement and check the mono compatibility again If necessary reduce the base width setting and or the boost of the high eg to regain mono compatibility f Try using the mi
5. ges We can adapt the control ranges to your needs Please let us know what you are looking for Inputs and Outputs The module is available with electronically balanced and transformer balanced inputs and outputs Appearance The colors of the faceplate the control knobs and switch caps can be determined by the customer When adding base width the left right balance changes very often Why is this When you enhance the base width you also shift a signal that was located right in the middle between center and left more to the left The location of this signal was mainly based on the level relation between left and right for this particular signal Adding base width alters this level relation The particular signal now has more level on the left channel and less level on the right channel This will of course hn Ta A z a and 10 dB 10 LOW ddt audia
6. mates the W731 can be used in Left Right or M S stereo chains as well In addition it can convert from one format to another The internal format is always M S ATTENTION When using the Base Width Range above 1 0 phase reversed signal components of the left channel appear in the right channel and vice versa This can affect the mono compatibility of the signal MAKE SURE THAT YOU CHECK THE MIX IN MONO ALL THE TIME WHEN A SETTING HAS CHANGED The Mastering Version of the W731 usually come a direction control range of 4 dB since this control is only used for corrections of the level balance with mastering The recording version has the full range from mono from left via stereo unchanged at the ceneter position to mono from right The internal inputs are also switched off and will not load the source KN The EEQ Switch activates the elliptical equalizer Po centers the bass range Settings up to 1 kHz are possible These setting can be audible however such setting can be of advantage to regain mono compatibility using enhanced base width _ HI and MID EQ are part of the internal S Channel and affect only the spatial components of the stereo signal Boosting results in a wider base in the boosted The EQ bands of the W731 allow frequency depending control of the stereo base width The Hi and Mid EQ are part RES Frequency Control of the Shelving HI EQ s E idee only th tial si Boost Cut Con
7. o the correct format pressed if the output signal 03 Ha Y EN should have M S format not pressed if the output signal should be a left right ELLIPTIC EQ fo stereo signal 4 Set the BASE control 3 to the 1 0 position center no change of the base width 5 Set the DIR control 4 to the M position center no change of the left right balance 6 Leave the elliptical equalizer switched off EEQ switch 6 not pressed 7 Set the elliptical EQ Frequency Control 7 to 300 Hz 300 Hz no audible influence 8 Set all boost cut controls of the 3 eq bands 9 12 15 to the O position center no level shift 9 Leave the EQ switched off EQ switch 16 not pressed 10 The remaining eq controls are only important when you start using the eq TOP Quickstart a Change the setting of the Base control 3 and try to find a setting that results in an improved spatial image With mastering the range between 1 1 and 1 3 is the most interesting range It adds some base width and depth and usually causes an improvement without negative effects Please note that you can do good or harm to the signal so check carefully by switching the module on and off if the setting is really of advantage or not Make sure that you always check the mix in Mono when a setting has changed Settings above 1 3 are only possible if the original mix is very narrow If you add too much base width you ll get the impr
8. trol of the HI EQ s en i frequencies will enhance Frequency Control the bell type fully parametric MID the base width cutting 10 reduces the base width in the particular band Q Factor Control of the fully parametric MID EQ The fully parametric low Boost Cut Control MID EQ s eq is part of the internal M channels and affects only the mono components It is usually used to center the low frequency range Boosting reduces Frequency Control of the bell type fully parametric the base width soaks The MS EQ W785MS can be used together with Q Factor Control of the fully parametric LOW EQ the W731 2 adas additional EQ bands Boost Cut control of the LOW EQ More details are below frequency range E adt audio 10 al 2 1 The LOW EQ is part of the internal M Channel and affects only the mono components of the stereo signal Boosting results in a reduced base width of the frequency band 13 15 6 The EQ Switch activates all 3 Equalizer Bands If the optional extension EQ W785MS is installed the EQ switch also activates the EQ bands of the external EQ Initial Setting The following setting results in a neutral setting of all stages 1 Insert the unit with the DIR ON switch 5 2 Set the INPUT MS Switch 1 to the correct format pressed if the input signal has M S format not pressed if the input signal is a left right stereo signal 3 Set the OUTPUT MS Switch 2 t
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