M2TECH - Sound & Pixel
Contents
1. RA aisi adagia 5 22 FONG sa A A i AT TA STA ANT 6 3 Back PANEL ii A tc a tlt bela B al 7 A GONMGCUONG ba 8 5 Digital Audio connections and jitter 9 6 Technical Specifications i ise a a 10 Copyright 2011 M2Tech Srl Evo DAC M2Tec HIGH PERFORMANCE 192 32 DAC REVISION PrA SEPTEMBER 2011 la 1 Unpacking The Evo DAC box contains the following items e Evo DAC e 9V 2A wall adaptor Should any item be missing please contact your dealer for a warranty claim Copyright 2011 M2Tech Srl Evo DAC M Tec HIGH PERFORMANCE 192 32 DAC REVISION PrA SEPTEMBER 2011 l 2 Front Panel MIEH Evo DAC tAH Bit I Sdigital to analog converter MADE INI ALY DC IN 9VDC rx44 441 48 XI 3 1 4 5 6 7 2 Figure 1 1 Supply input Apply 9Vpc from the wall adaptor provided in the package of from an Evo SUPPLY Another power supply may be used if necessary but user must be aware that in this case the warranty is void Tip is positive ring is negative A minimum current of 500mA is necessary This input is protected against polarity inversion 2 Input switch Allows for selection of the input coaxial S PDIF left optical Toslink center FS right 3 Power indicator Turns on when the stock wall adaptor or the Evo SUPPLY are connected to the Evo DAC 4 5 Base sampling frequency indicators The sampling frequencies of all music files can be grouped in two categories those whic2. M2 TECH EVO DAC HIGH PERFORMANCE 192 32 DIGITAL TO ANALOG CONVERTER USER MANUAL REV PRA 9 2011 Evo DAC M Tec HIGH PERFORMANCE 192 32 DAC REVISION PrA SEPTEMBER 2011 la Warning Changes or modifications not authorized by the manufacturer can invalidate the compliance to CE regulations and cause the unit to be no more suitable to use The manufacturer refuses every responsibility regarding damages to people or things due to the use of a unit which has been subject to unauthorized modifications or to misuse or to malfunction of a unit which has been subject to unauthorized modifications This unit is compliant with the following CE regulations CEI EN 55022 2009 Class B Radiated Emissions CEI EN 55024 1999 CEI EN 55024 A2 2003 CEI EN 55024 1S1 2008 Radio Frequency Electromagnetic Fields 50Hz Magnetic Field IMmunity Test and Electrostatic Discharges ESD Recycling The label above printed on the product case indicates that the product when no more usable can t be treated as generic garbage but must be disposed of at a collection point for recycling of electrical and electronic equipment in compliance with the WEEE regulation Waste of Electrical and Electronic Equipment By making sure that this unit is correctly recycled you will help preventing potential damages to environment and human health which could be caused by a wrong treatment of this product as generic garbage Materials recycling helps
3. able not included Please avoid using long cables in order to preserve the great jitter performance of this connection 50cm or 1m cables are preferred This input allows for up to 192kHz operation and up to 32 bits resolution 9 Toslink input Legacy Toslink receiver for compatibility Connect this input to the Toslink output of a digital source CD player digital receiver computer using a Toslink optical fiber interconnect This input allows fro up to 96kHz operation and up to 24 bits resolution 10 S PDIF input Connect this input to the S PDIF output of a digital source CD player digital receiver computer hiFace using a 75 Ohms digital interconnect This input allows fro up to 192kHz operation and up to 24 bits resolution 11 12 Analog outputs Connect these outputs to the inputs of a preamplifier or integrated amplifier using an RCA interconnect following the color codes red is for right channel while white or black are for left channel These outputs should not drive a power amplifier directly Copyright 2011 M2Tech Srl Evo DAC M Teo HIGH PERFORMANCE 192 32 DAC REVISION PrA SEPTEMBER 2011 L 4 Connections Connect the digital source s to the Evo DAC Page 7 nos 8 10 using suitable interconnects Connect the analog outputs of the Evo DAC Page 7 nos 11 12 to the preamplifier or integrated amplifier DO NOT connect these output directiv to a power amplifier no volume control is avai
4. h are multiples of 44 1kHz that is 44 1kHz itself 88 2kHz and 176 4kHz and those which are multiples of 48kHz that is 48kHz itself 96kHz and 192kHz When the Evo DAC is not locking any incoming signal then both indicators will be off When the Evo DAC is locking a signal which sampling frequency is from the first group then indicator 4 will lit When the Evo DAC is locking a signal which sampling frequency is from the second group then indicator 5 will lit 6 7 Sampling frequency multiple indicator Together with indicators 4 and 5 these two indicators display the incoming signal s sampling frequency When indicator 6 lits then the base sampling frequency displayed by indicators 4 and 5 must be multiplied by 1 When indicator 7 lits then the base sampling frequency displayed by indicators 4 and 5 must be multiplied by 2 When both indicators 6 and 7 lit then the base sampling frequency displayed by indicators 4 and 5 must be multiplied by 4 Some examples follow a 44 1 kHz indicators 4 and 6 lit base is 44 1 multiple is x1 b 96kHz indicators 5 and 7 lit base is 48 multiple is x2 c 192kHz indicators 5 6 and 7 lit base is 48 multiple is x4 Copyright 2011 M2Tech Srl Evo DAC M Tec HIGH PERFORMANCE 192 32 DAC REVISION PrA SEPTEMBER 2011 l 3 Back Panel Figure 2 8 F S input Connect the I S output of the hiFace Evo to this input using a straight CAT 5 c
5. lable so verv high levels are obtained which could damage the loudspeakers Connect the output plug of the wall adaptor or Evo SUPPLY to the supply connector Page 6 no 1 of Evo DAC Copyright 2011 M2Tech Srl Evo DAC M Tec HIGH PERFORMANCE 192 32 DAC REVISION PrA SEPTEMBER 2011 L 5 Digital Audio connections and jitter Usual digital audio connections all suffer to a certain extent a problem called jitter Jitter is an uncertainty in the timing of samples arrival to the DAC due to the fact that the connections carry more than one signal on a single wire or fiber data sampling frequency and bit clock all mixed in a way that the receiver can separate them Noise and the separation process itself produce jitter which is then transferred to the conversion IC The final result is an analog signal affected by the jitter effects a higher noise floor and spurious distortion tones in the signal Dynamic low level detail and imaging all are affected by jitter The only way to avoid injecting jitter into the conversion IC and in turn into the analog signal without complicated retiming circuits is to transfer all three signals data sampling frequency and bit clock each on its dedicated wire This is accomplished using IS an audio signal transfer standard usually implemented inside equipment between IC s An ES path is made of three wires plus the ground reference Of course S itself cannot ensure low jitter as n
6. oise coupled to the sampling frequency wire can still produce jitter For this reason the transmitter needs to use high current drivers in order to reduce the line sensitivity to external noises coupled to its output impedance Moreover the cable needs to be adequately shielded M2Tech uses CAT 5 connectors and cables in order to provide good shielding of the delicate I S signals The I2S output of the hiFace Evo is driven by high current drivers By connecting the hiFace Evo to the Evo DAC using the I S connection a virtually zero jitter transfer is implemented This way the great jitter performance of the hiFace Evo USB interface can be transferred down to the Evo DAC analog outputs allowing for a sonic performance hardly matched by a plain S PDIF DAC Even better performance can be obtained by powering Evo DAC and hiFace Evo if used from the Evo SUPPLY which provides a cleaner supply than the stock wall adaptor Less supply noise means less jitter Copyright 2011 M2Tech Srl Evo DAC M Tec HIGH PERFORMANCE 192 32 DAC REVISION PrA SEPTEMBER 2011 L 6 Technical Specifications Supply voltage sssseeeeeennnnnnnnnnznna 9Voc Power consumption 350mA Input sampling frequencies kHz 44 1 48 88 2 96 176 4 192 PRO SOLUTIONS rta up to 32 bits I S input up to 24 bits coax and Toslink inputs Output voltage oia 2 7V RMS T HDEN oda taa 0 002 O 1kHz OdBFS Nata 118dB A weighted O
7. perative temperature range 0 C to 40 C OR 105x50x104mm cabinet 105x50x150mm with connectors WIG oisess ste cecde enna repo 400g Not on Toslink Copyright 2011 M2Tech Srl 10
8. saving natural resources For more in depth information about recycling this product please contact M2Tech Srl Copyright 2011 M2Tech Srl Evo DAC M2Tec HIGH PERFORMANCE 192 32 DAC REVISION PrA SEPTEMBER 2011 Ja Dear customer thank you for purchasing Evo dac What you have is a high performance digital to analog converter with many unique features conceived to obtain the best audio performance in conjunction with the hi Face Evo as well as stand alone Evo DAC features a latest generation D A integrated circuit a low jitter AES receiver for S PDIF and Toslink inputs and an 1 S input compliant with hiFace Evo IS output The output buffer is based on a low noise low distortion opamp while all anti alias filter capacitors are polypropylene film capacitors An Evo DAC connected to a computer via an hiFace Evo by their I S ports make a zero jitter system capable of very high performance Gold plated RCA connectors ensure perfect contacts and life long trouble free operation We feel that your expectations will be fulfilled by Evo DAC you ll hear your music whether in files or from a digital player in a way like never before prepare for a whole new experience Nadia Marino CEO Please annotate here your Evo DAC serial number for future reference S N Date of purchase Copyright 2011 M2Tech Srl Evo DAC HIGH PERFORMANCE 192 32 DAC REVISION PrA SEPTEMBER 2011 la INDEX BIRRA U 9 72 10 4 9 a
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