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M2TECH 

JOPLIN M

K

III 

384

K

H

Z

/32BIT ANALOG-TO-DIGITAL CONVERTER  

 
 
 

 
 

 
 
 

USER MANUAL 

 

 
 
 

 
 

 
 

 

 
 
 

 
 

 
 
 

 
 

 
 
 

 
 

 
 
 

REV. P

r

A – 4/2019 

Summary of Contents for JOPLIN MKIII

Page 1: ...M2TECH JOPLIN MKIII 384KHZ 32BIT ANALOG TO DIGITAL CONVERTER USER MANUAL REV PrA 4 2019...

Page 2: ......

Page 3: ...nit all connections to other equipment in the system must be done when all equipment are off Failing to comply to this advice may lead to damage to the unit Recycling The label above printed on the pr...

Page 4: ...TWO technology which uses proprietary drivers and asynchronous data transfer along with a sophisticated electronic design JOPLIN MKIII features a comprehensive set of output connections which suit vi...

Page 5: ...ASIO with Windows 7 28 7 2 4 Configuring for WASAPI with Windows 7 28 7 3 Configuring a Mac 28 8 Configuring the 29 8 1 Navigating the menu by the front panel controls 29 8 2 Navigating the menu by t...

Page 6: ...mbia England CO25 CO38 and COLE 43 9 2 18 Decca FFRR 78rpm DEC 43 9 2 19 MGM 78rpm MGM7 43 9 2 20 Victor 1938 47 and Victor 1947 52 VIC3 and VIC4 43 9 3 Equalizing tapes why and when 43 9 3 1 CCIR IEC...

Page 7: ...contact your retail dealer Remove the JOPLIN MKIII from the foam enclosure and place it onto a stable base far from heat sources Avoid full sunlight on the unit Allow for ample room around the unit f...

Page 8: ...JOPLIN MKIII 384kHz 32bit ANALOG TO DIGITAL CONVERTER REVISION PRA APRIL 2019 Copyright 2019 M2Tech Srl 8 M2Tech www m2tech biz...

Page 9: ...vice can be switched on by the included remote control 4 Display with VU meter Multifunction OLED display During normal operation it indicates the sampling frequency the gain the selected input and th...

Page 10: ...JOPLIN MKIII 384kHz 32bit ANALOG TO DIGITAL CONVERTER REVISION PRA APRIL 2019 Copyright 2019 M2Tech Srl 10 M2Tech www m2tech biz...

Page 11: ...nce potentiometer Use to set the analogue input impedance to suit your cartridge s recommended load Set to 50K for line level sources 9 AES EBU digital output Generate AES EBU data streams in consumer...

Page 12: ...19 M2Tech Srl 12 M2Tech www m2tech biz 14 I2 S output Connect to a DAC provided with PS Audio I2 S input HDMI female connector 15 Power supply input Connect the wall adaptor provided with the unit or...

Page 13: ...this button to access the menu Esc Push this button to exit the menu discarding all changes Menu navigation arrows When accessing the menu push arrow up and arrow down to scroll through the various me...

Page 14: ...JOPLIN MKIII 384kHz 32bit ANALOG TO DIGITAL CONVERTER REVISION PRA APRIL 2019 Copyright 2019 M2Tech Srl 14 M2Tech www m2tech biz...

Page 15: ...OPLIN MKIII Connect the A plug of the cable to a 2 0 USB port of your computer Connect two interconnects to the analogue inputs of the JOPLIN MKIII Figure 2 6 and to the outputs of your analogue sourc...

Page 16: ...JOPLIN MKIII 384kHz 32bit ANALOG TO DIGITAL CONVERTER REVISION PRA APRIL 2019 Copyright 2019 M2Tech Srl 16 M2Tech www m2tech biz...

Page 17: ...or DXD Therefore M2Tech provides a driver which needs to be installed prior to access the JOPLIN MKIII via USB 6 1 Obtaining the driver The Windows driver for the JOPLIN MKIII is available on the M2T...

Page 18: ...9 M2Tech Srl 18 M2Tech www m2tech biz Figure 5 In Windows 7 the installation wizard will ask for authorization to start installation Accept Then the wizard will check for system features At a certain...

Page 19: ...2019 M2Tech Srl 19 M2Tech www m2tech biz Follow the indications and plug the device in one port then click on Next You ll be asked to choose the installation directory Figure 7 After choosing it clic...

Page 20: ...Figure 8 At the end of the installation process the wizard notify the completion Figure 9 Click on Finish to complete the installation Figure 9 To ensure that installation has correctly completed the...

Page 21: ...ight 2019 M2Tech Srl 21 M2Tech www m2tech biz Figure 10 6 3 USB Control Panel A control panel is installed together with the driver which can be used to optimize JOPLIN MKIII s USB port performance Fi...

Page 22: ...ure 11 6 4 Uninstalling the driver Sometimes it is necessary to uninstall the driver to roll back to a previous version Uninstall is a quite simple procedure Go to the control panel and launch the App...

Page 23: ...ht 2019 M2Tech Srl 23 M2Tech www m2tech biz Figure 12 The installation wizard which also handles uninstalling will show up Figure 13 on next page Click on Uninstall to start uninstalling Figure 13 At...

Page 24: ...2019 Copyright 2019 M2Tech Srl 24 M2Tech www m2tech biz Figure 14 After the uninstalling of all files related to the driver is complete the Next button will be enabled Click on it The final message w...

Page 25: ...tall anything just connect the JOPLIN MKIII to your Mac and it will be immediately recognized by the OS and ready to use Macs with older OS need update to use the JOPLIN MKIII 6 6 True plug n play ope...

Page 26: ...JOPLIN MKIII 384kHz 32bit ANALOG TO DIGITAL CONVERTER REVISION PRA APRIL 2019 Copyright 2019 M2Tech Srl 26 M2Tech www m2tech biz...

Page 27: ...KS can be chosen for better performance with recorders which can operate in Kernel Streaming mode WASAPI Windows Audio Standard API is a standard interface for audio players which allows to get the s...

Page 28: ...nfiguring for ASIO with Windows 7 As it happens with Kernel Streaming ASIO cannot be directly accessed ASIO must be selected in the specific recorder you choose to use 7 2 4 Configuring for WASAPI wit...

Page 29: ...ter MPX filter I2 S output format I2 S output Auxiliary pins mode Remote reception Firmware version display All parameters are stored in a non volatile memory so that they are recalled after every pow...

Page 30: ...ty to fully exploit the dynamic of the JOPLIN MKIII For example a tuner with a nominal output voltage of 500mVrms would require a gain of 5 1 that is 14dB to achieve the full ADC dynamic As well a pho...

Page 31: ...d and the actual sampling frequency is the one set by the computer audio control panel or by the recorder program The value set via the menu is restored as soon as the computer is disconnected from th...

Page 32: ...ctor or reel to reel tapes enthusiast Of course equalization can be disabled when the source doesn t require it This is obtained by choosing the FLAT value for this parameter 17 different curves for m...

Page 33: ...off frequencies are available 5kHz and 10kHz See Figure 20 for more details on low pass filter effect on frequency response The activation of the low pass filter is indicated in the display with a le...

Page 34: ...19kHz tone can be heard by a young ear and may also generate intermodulation distortion so it could be useful to eliminate it The MPX filter does this by cutting away a very narrow band around 19kHz...

Page 35: ...tain PCM 88 2 kHz when the base sampling frequency is a multiple of 48kHz and vice versa 8 3 12 I2 S output auxiliary pins mode The I2 S output of the Joplin MKIII also delivers additional information...

Page 36: ...JOPLIN MKIII 384kHz 32bit ANALOG TO DIGITAL CONVERTER REVISION PRA APRIL 2019 Copyright 2019 M2Tech Srl 36 M2Tech www m2tech biz...

Page 37: ...to the signal before sending it to the cutting lathe low frequencies are attenuated to reduce their dynamic and high frequencies are amplified to elevate them over the surface noise floor Of course th...

Page 38: ...curves of the various LP s Not only LP s are equalized equalization was used for 78rpm too as well with great variety of choices A good phono preamplifier or an ADC suitable for direct phono acquiring...

Page 39: ...ol Columbia HMV RCA Figure 23 To better understand the effect of using the wrong equalization curve to play a record Figure 24 shows the relative level versus frequency of the music when playing a Dec...

Page 40: ...the same curve as other labels e g Mercury used the same curve as Capitol so the curve set provided with the JOPLIN MKIII is the one which covers almost all the labels producing records between 1925...

Page 41: ...purposely founded to promote the work of the great composer B la Bart k Many titles are available since 1949 9 2 6 Capitol CAP Capitol had a large production of very good mono recordings 9 2 7 Columbi...

Page 42: ...play them 9 2 12 Oiseau Lyre OYLR Before being purchased by Decca Oiseau Lyre made many great recordings of classical music 9 2 13 Pacific Jazz PACJ Jazz was a great business in USA after WWII so some...

Page 43: ...MGM proprietary curve for 78rpm 9 2 20 Victor 1938 47 and Victor 1947 52 VIC3 and VIC4 Victor is an old company later purchased by RCA who produced 78rpm since 1925 The curve adopted between 1925 and...

Page 44: ...d an equalization for reel to reel tape recorders which was adopted by most European manufacturers It has been said by many that the CCIR equalization is better than the NAB one Anyway the choice of o...

Page 45: ...the available programs nor specifically recommend any of them nevertheless some indications are useful for the JOPLIN MKIII owner in order to have a glance of the available features and the possibili...

Page 46: ...JOPLIN MKIII 384kHz 32bit ANALOG TO DIGITAL CONVERTER REVISION PRA APRIL 2019 Copyright 2019 M2Tech Srl 46 M2Tech www m2tech biz...

Page 47: ...h the JOPLIN MKIII called VAN DER GRAAF MKII www m2tech biz vandergraaf html It is the best choice to push the JOPLIN MKIII performance to the highest level possible We advice users that using a diffe...

Page 48: ...JOPLIN MKIII 384kHz 32bit ANALOG TO DIGITAL CONVERTER REVISION PRA APRIL 2019 Copyright 2019 M2Tech Srl 48 M2Tech www m2tech biz...

Page 49: ...ettable by knob Analogue input gain 0 10 65dB 1dB steps Equalization numeric gain 22dB RIAA S PDIF input sensitivity 0 5Vpp 0 1V S PDIF input impedance 75 Ohms S PDIF output voltage 0 5Vpp 0 1V S PDIF...

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