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M2TECH

JOPLIN

384

K

H

Z

/32BIT ANALOG-TO-DIGITAL CONVERTER

USER MANUAL

--- PRELIMINARY ---

REV. P

r

A – 9/2012

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Summary of Contents for JOPLIN

Page 1: ...M2TECH JOPLIN 384KHZ 32BIT ANALOG TO DIGITAL CONVERTER USER MANUAL PRELIMINARY REV PrA 9 2012...

Page 2: ...it 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 pro...

Page 3: ...overcomes all the limits of your computer s audio card by implementing the latest generation hiFace TWO technology which uses proprietary drivers and asynchronous data transfer along with a sophistica...

Page 4: ...d with Windows Vista or Windows 7 22 7 2 2 Configuring for Kernel Streaming with Windows Vista or Windows 7 22 7 2 3 Configuring for ASIO with Windows Vista or Windows 7 23 7 2 4 Configuring for WASAP...

Page 5: ...land CO25 CO38 and COLE 35 9 2 17 Decca FFRR 78rpm DEC 36 9 2 18 MGM 78rpm MGM7 36 9 2 19 Victor 1938 47 and Victor 1947 52 VIC3 and VIC4 36 9 3 Equalizing tapes why and when 36 9 3 1 CCIR IEC for 9 5...

Page 6: ...Should one or more items be missing please contact your dealer or local distributor Extract the Joplin from the foam container and place it on a stable base far from heat sources Avoid the direct sunl...

Page 7: ...cess the menu More pushes allow to navigate the various menu items When the desired item is accessed rotate the knob to choose the desired value for that item Push the knob one last time to select the...

Page 8: ...EBU digital output Generate AES EBU data streams in consumer format XLR male connector 7 S PDIF digital output Generate S PDIF data streams RCA female connector 8 S PDIF digital input Accept S PDIF da...

Page 9: ...andby and to activate it 4 Menu Esc Push this button to access the menu and to exit the menu without changing the current item 4 Menu navigation arrows When accessing the menu push arrow up and arrow...

Page 10: ...o the USB connector Figure 2 10 of the Joplin Connect the A plug of the cable to a 2 0 USB port of your computer Connect two interconnects to the analog inputs of the Joplin Figure 2 4 5 and to the ou...

Page 11: ...h needs to be installed prior to access the Joplin via USB 6 1 Obtaining the driver The Windows driver for the Joplin is available on the M2Tech website in the page dedicated to the Joplin www m2tech...

Page 12: ...012 M2Tech Srl 12 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 certai...

Page 13: ...M2Tech Srl 13 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 click on...

Page 14: ...ch biz 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 De...

Page 15: ...JOPLIN 384kHz 32bit ANALOG TO DIGITAL CONVERTER REVISION PRA SEPTEMBER 2012 Copyright 2012 M2Tech Srl 15 M2Tech www m2tech biz Figure 10...

Page 16: ...yright 2012 M2Tech Srl 16 M2Tech www m2tech biz 6 3 USB Control Panel A control panel is installed together with the driver which can be used to optimize Joplin s USB port performance Figure 11 More d...

Page 17: ...the driver to roll back to a previous version Uninstall is a quite simple procedure Go to the control panel and launch the Application Installation utility Figure 12 Look for the Joplin driver item in...

Page 18: ...it ANALOG TO DIGITAL CONVERTER REVISION PRA SEPTEMBER 2012 Copyright 2012 M2Tech Srl 18 M2Tech www m2tech biz Figure 13 At this point the wizard will show up the installation progress Figure 14 up to...

Page 19: ...udio class This means that the driver is already included in the operating system and the user needs not to install anything just connect the Joplin to your Mac and it will be immediately recognized b...

Page 20: ...is suitable for recorders which can t operate in ASIO mode while the latter can be chosen for better performance with players which can operate in ASIO mode Please consider that bit perfect operation...

Page 21: ...mode for recording 7 1 2 Configuring for ASIO with Windows XP ASIO has no standard setting in Windows XP ASIO must be selected in the specific recorder you choose to use 7 2 Configuring a PC with Win...

Page 22: ...for Direct Sound with Windows Vista or Windows 7 Open control Panel and select Hardware and Sounds Under Audio click on Manage Audio Devices The following windows will appear Click on the Recording t...

Page 23: ...ccessed ASIO must be selected in the specific recorder you choose to use 7 2 4 Configuring for WASAPI with Windows Vista or Windows 7 As it happens with Kernel Streaming WASAPI cannot be directly acce...

Page 24: ...on 8 1 Navigating the menu by the front panel controls The menu is accessed by pressing the encoder knob once Figure 1 2 The first parameter Input gain is displayed along with its current value Succe...

Page 25: ...put level would need 40dB gain 65dB gain means that the full dynamic is achieved with an input voltage as low as 0 95mVrms This means that even MC cartridges with output voltages as low as 0 5mV can b...

Page 26: ...settable by the user via the menu This is because in standalone use the only usable outputs are the S PDIF AES EBU and Toslink ones which cannot operate at sampling frequencies higher than 192kHz 8 3...

Page 27: ...lue A is chosen the display activates at the highest intensity every time a control is accessed then it remains active for 5 seconds after the last control is accessed finally turning off 8 3 7 High p...

Page 28: ...sed to recreate the 38kHz frequency necessary to demodulate the difference information to be blended with the sum information to get the two stereo channels in fact L R L R 2L while L R L R 2R The 19k...

Page 29: ...JOPLIN 384kHz 32bit ANALOG TO DIGITAL CONVERTER REVISION PRA SEPTEMBER 2012 Copyright 2012 M2Tech Srl 29 M2Tech www m2tech biz Figure 21...

Page 30: ...o 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 the...

Page 31: ...t 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 acquiri...

Page 32: ...lumbia 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 on a Decca FFRR record...

Page 33: ...h the Joplin is the one which covers almost all the labels producing records between 1925 and 1954 To find out more about which curve to use with a specific record extensive literature may be found on...

Page 34: ...ich got to success after a market war against RCA who was sponsoring a 45rpm microgroove standard 9 2 7 HMV HMV His Master s Voice after the painting with the dog Nipper listening to a gramophone form...

Page 35: ...es to press their microgroove LP s Pacific Jazz was one of them 9 2 13 Philips Of course Philips one of the greatest European brands related to music developed its eq curve 9 2 14 RCA RCA1 RCA2 and RC...

Page 36: ...in Europe To make things more complicated each standard has different curves for different tape speeds as flux changes with speed The main difference between records and tapes is that almost no turnta...

Page 37: ...e A and curve B 9 4 Acquiring with equalization When no equalization curve is used then the rightmost led of each VU meter bar turn on right before clipping that is when the input signal is 1dBFS Shou...

Page 38: ...with the Joplin called PALMER POWER STATION www m2tech biz palmer html It is the best choice to push the Joplin performance to the highest level possible We advice users that using a different power s...

Page 39: ...ce 47 kOhms Analog input gain 0 10 65dB 1dB steps S PDIF input sensitivity 0 5Vpp 0 1V S PDIF input impedance 75 Ohms S PDIF output voltage 0 5Vpp 0 1V S PDIF output impedance 75 Ohms AES EBU output v...

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