USER MANUAL - Mastering Mansion
Contents
1. It might be desirable to use a superior sounding amplifier equipped with unbalanced ins to an inferior one which has balanced inputs The DAC can drive unbalanced inputs as easily as balanced ones Pin 2 of out XLR should be feeding signal of the RCA pin 1 should be connected to shield and pin 3 should be disconnected If ready made XLR to RCA adapter is used make sure pin 3 is disconnected inside typically it s shorted to gnd Additionally since typical unbalanced input is more sensitive at 10dBV it might be necessary to lower the output gain using internal trimpots see alignment Typically the DAC runs on its internal clock in Superclock tm mode In this mode Mytek DAC serves as a very stable low jitter clock source which enables TOTAL jitter immunity which means that any jitter at the DAC digital in is completely removed In this mode all digital input formats sound exactly the same with no jitter distortion due to jittery source jittery CD or long input cables Because of careful design this clock is as good or better than dedicated studio clock generators Additionally in Superlock tm mode signal of any format any FS 16 20 or 24 bit is upsampled to 192k 24 bit resulting in overall more realistic and accurate sound When synced to digital input the DAC works as a typical CD Player DAC where jitter is attenuated but its effects can be heard This second mode is provided for comparison purpo2. Units sent without RMA will not be accepted Mytek extends affordable repair service for all units manufactured to date that are not covered by this Warranty 14
3. 2 192k Superlock tm 3 Play the program you should be seeing level on the meters as well as hearing the signal at output XLRs and headphones Turn up the volume knob if necessary If levels at your power amp are inadequate for the volume knob position change the out alignment using trimpots Analog Output Alignment 1 Turn the output pot all the way up or disable it 2 Play a digital audio source DAW generator test CD etc set to approx 1kHz at the peak operating level you have chosen let s say you have chosen 18dB 2 Send the signal from the analog output to the console VU meter If you don t have a VU meter you can use an AC voltmeter set to measure AC RMS values 0 VU at 4dB corresponds to 1 225 Volts RMS measured between pin hot 2 and pin cold 3 at the output XLRs 3 Using a tweaker or a small screwdriver adjust the analog output trimpots until the VU meter reads 0 VU The alignment has to be performed with accuracy of 0 1dB to be considered accurate Similar alignment procedure with 0 1dB accuracy is required for valid A B listening comparisons btwn different pieces of equipment A slightly louder source is typically perceived as better sounding Output driving unbalanced destination Stereo96 DAC is equipped with 2 XLR analog outputs For best signal to noise performance it is recommended the signal destination has a typical kOhm impedance 1 20kOhm input with standard 4dB line level balanced signal
4. MYTEK DIGITAL USA VOLUME STEREO96 DAC MYIEK DIGITAL USA r O PHONES N INPUT OPD SYNC ONU Cee O 20 O O i Oaes Osureriock 60 O MASTERING DIGITAL TO ANALOG CONVERTER USER MANUAL VER 7 April 2007 Use ver 5 manual for earlier units without toslink This manual may be updated Download the newest version at Attp www mytekdigital com For technical support technical tips and support check Attp www mytekdigital com or contact Mytek tech support at info2007 mytekdigital com or at tel 646 613 1822 fax 212 202 5331 Mytek 211 Centre Street New York NY 10013 USA Quick Star sc5ts eau tcas coe E E cae nena eoues 3 Tntrod ction sinso ees cane odcndaniaainereddninatnantelccniiines 4 Operation Internal jumper and trimpots 0 008 5 Operation Typical setup Balanced Output 7 Operation Analog output alignment 6008 8 Operation Unbalanced Output ccc ccceseeeteeeteeeteeeees 9 Rack mount shelfi eE age secendeasetheanev ees 11 Companion Stereo96 ADC cecece eee eee eee eeeneens 12 SpeciCatilONns s 5 ccssaciewwecetiesaesiasive setesawoterseadigausies 13 Warranty COnditions cceceeceec re dern eiee 14 Quick Start Output volume knob sets the output volume with range from mute to max This is factory default The knob can be disabled with internal jumpers Additionally internal precision 10 turn trimpots ca
5. emove top cover to access Internal analog output jumpers JP2 JP4 insert front stereo potentiometer as the output XLR volume control default used typically when power amp or powered speakers are connected to output Turn it down for unbalanced consumer 10dBV sources JP1 JP3 bypass output capacitors default is off caps in the signal path Removing the cas extends the bandwidth down to 0Hz DC but requires that digital signal has little or no DC component If not sure leave these jumpers off Internal input gain trimpots Overall L R signal gain turn it down for unbalanced consumer 10dBV sources use sinewave alignment procedure described further if necessary Default is typical 4dB output level a T1 Amp 20mm Lee Slow Blow Stereo96DAC internal trimpots and jumper assignments remove top cover to access 115VAC 230VAC power switch car var T use Typical Setup Balanced Output Stereo96 DAC is equipped with 2 XLR analog outputs For best signal to noise performance it is recommended the signal destination has a typical kOhm impedance 1 20kOhm input with standard 4dB line level balanced signal Alternatively a more sensitive unbalanced signal destination can be used as described in subsequent paragra
6. ications 2 channel 24bit PCM 192 kHz D to A conversion in SuperLock tm mode 96 kHz D to A conversion in input sync mode when digital input sync is used All sample rates playback with 100 kHz analog bandwidth in SuperLock tm mode 24 bit 16 24 bit input accepted 120dB A weighted 117dB Total 107dB lt 0 0005 lt 10picoseconds 4dBm balanced or unbalanced 75 Ohm trimpots and potentiometer for level control For variable or preset output level controls switch selectable with high performance conductive plastic attenuator for direct conn to power amp or speaker Hi speed 25 200kHz AES EBU SPDIF Optical TOSLINK SPDIF AES Digital 4 input source selection switch lt 10psec Total jitter immunity via Superlock technology Hi End High Current Class AB Amplifier 100 115 V 220 240V 50 60Hz switchable 1 3 rack space wide x 1U high x 8 deep 5 5 x 1 6 8 4 pounds 13 Warranty This Stereo96DAC digital audio converter is warranted by Mytek to the original purchaser against defects in workmanship and materials used in manufacture for a period of one year from the date of purchase Faults due to customer misuse unauthorized modifications or accidents are not covered by this warranty No other warranty is expressed or implied Any faulty unit should be sent shipping prepaid to the manufacturer service center Prior to shipping the client should obtain from Mytek an RMA for warranty services
7. ing Powermac laptops up to 96kHz Hi Fidelity high drive any type of headphones with ultimate fidelity It s able to provide up to 1 Amp of instant current drive The headphone out is the same as XLR and it s always routed through the knob Analog outputs are 4dB balanced and can be used to drive consumer unbalanced Leave pin 3 floatingfor unbl and if necessary turn down output gain using internal trimpots Cel IN OUTL OUTR WWW MYTEKDIGITAL COM Analog outputs are 4dB balanced Tehy can also be used to drive unbalanced inputs pin1 GND pin 2 signal pin 3 NC If the signal is too hot for consumer unbalanced input turn down the gain using internal precision gain trimpots Introduction to Stereo96 Series Converters The MYTEK Stereo96 series consists of two 1 3 rack units the Stereo96 ADC and the Stereo 96 DAC They are also a part of extended family of 1 3 rack units which also includes Stereol92 converters SRC and Studio Clock Stereo96 converters can be used as stand alone devices for variety of studio applications such as mastering recording and playback whenever the highest quality conversion is required Users choose Mytek converters primarily for their outstanding sound quality The sound of Mytek converters can be described as transparent We design our converters to be as faithful to the signal as possible rather than follow philosophy of some other manufacturers who offer analog or tube sou
8. n be used to set the overall gain of the output Refer to Internal jumper settings for details Oros Or Sample rate selection Sets the desired sample rate When used with external clock select FS closest matching that of supplied external wordclock O30 9 INPUT OSF syNC Omu O 2 0 jo ho Oas e Omm When converter is synced to input its behaviour is similar to real world situtation with somebut not full immunity to jitter Superlock Mode uses stable internal clock and provides the best clock stability 10ps and thus the best conversion In Superlock tm mode any signal is upsampled to full 24 bit 192k resolution and subsequently converted to analog The two modes are provided for comparison reasons ie real world vs ideal sound with no jitter Line power is 115VAC 50 60Hz factory default or internal switch accessible after removing the top cover 1 Amp slow blow 20mm fuse is also accessible under the cover 110 220VAC MO ce SPDIF En IN2 SWITCH AND FUSE INSIDE AES EBU SPDIF1 SPDIF2 and OPTICAL inputs are seamlessly switchable on the front panel this switch can be used as input selector for 4 sources They operate in single wire mode for all sampling frequencies Inputs accept signal up to 96k Peak meter in dBFS The red LED headphone out can drive marked 0 corresponds to 1 sample overload 230VAC 50 60Hz switchable by ee SPDIF format allows to interface with Mac computers includ
9. nding converters Mytek converters are closest to a straight wire which is especially evident when used at full 24 96 resolution Sonically they are equal or better than the most expensive mastering converters Even when used in 16 bit mode the Stereo96 converters produce 20dB 10 times less distortion than typical converters found in budget recording equipment On Mytek website you can find and download various sound samples to evaluate Stereo96 series sound quality and compare it to the sound of other high end converter units To download samples log onto http www mytekdigital com compare listening_tests htm Stereo96 DAC features include 2 channel 24bit 96 kHz D to A conversion 192k upsampling in SuperLock tm mode All sample rates playback with 100 kHz analog bandwidth in SuperLock tm mode THD N 107 dB 0 0005 120 dB Dynamic Range A weighted AES EBU and S PDIF hi speed digital inputs 25 200kHz Digital input source selection switch Balanced 4dB outputs 29 dBu with adjustable gain trimpots Unbalanced operation with consumer levels Variable or preset output level controls switch selectable with high pe rformance conductive plastic attenuator Direct connection to powered monitors the built in attenuator can be used as volume control Built in 0 5A high current drive hi speed headphone amplifier Total jitter immunity via Superlock technology Stereo96DAC internal trimpots and jumper assignments r
10. ph In typical setup the DAC is running on its internal clock in Superlock tm mode In this mode Mytek DAC serves as a very stable low jitter clock source which enables TOTAL jitter immunity which means that any jitter at the DAC digital in is completely removed In this mode all digital input formats sound exactly the same with no jitter distortion due to jittery source jittery CD or long input cables Because of careful design this clock is as good or better than dedicated studio clock generators Additionally in Superlock tm mode signal of any format any FS 16 20 or 24 bit is upsampled to 192k 24 bit resulting in overall more realistic and accurate sound When synced to digital input the DAC works as a typical CD Player DAC where jitter is attenuated but its effects can be heard This second mode is provided for comparison purposes it allows mastering engineer to assess how the program will sound when played by consumers on their typical DACs Setup for typical balanced operation includes following steps 1 Setup internal jumpers to desired mode of knob operation Setup all other connections Set sync to Superlock tm Alternatively for testing purposed set sync to external 2 Select desired signal source Solid selector led at given input means proper input lock If input led is flashing there is either no signal or a problem with locking to it The DAC will automatically sync to any frequency btwn 32 96k external sync or 3
11. ses it allows mastering engineer to assess how the program will sound when played by consumers on their typical DACs Setup for typical balanced operation includes following steps 1 Setup internal jumpers to desired mode of knob operation Setup all other connections Set sync to Superlock tm Alternatively for testing purposed set sync to external 2 Select desired signal source Solid selector led at given input means proper input lock If input led is flashing there is either no signal or a problem with locking to it The DAC will automatically sync to any frequency btwn 32 96k external sync or 32 192k Superlock tm 3 Play the program you should be seeing level on the meters as well as hearing the signal at output XLRs and headphones Turn up the volume knob if necessary If levels at your power amp are inadequate for the volume knob position change the out alignment using trimpots 10 Rack Mount Shelf The Stereo96 DAC is 1 3 rack space wide and 1U tall Mytek provides a 1U rack mount shelf as accessory to mount up to 3 of 1 3 rack units The units are attached to shelf with small screw connecting the shelf to bottom through a threaded hole on the bottom of the unit 11 Companion Stereo96 ADC this page will be updated 12 Conversion Resolution Dynamic Range THD Noise Internal clock jitter Analog Outputs Digital Inputs Jitter Headphone Amp Mains Dimensions Weight Specif
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