M2TECH JOPLIN User manual

M2TECH
JOPLIN
384KHZ/32BIT ANALOG-TO-DIGITAL CONVERTER
USER MANUAL
--- PRELIMINARY ---
REV. PrA 9/2012

JOPLIN
384kHz/32bit ANALOG-TO-DIGITAL CONVERTER
REVISION PRA SEPTEMBER 2012
Copyright © 2012, M2Tech Srl
2
M2Tech
www.m2tech.biz
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 when an USB ca le less than 3m is used: CEI EN
55022:2009 Class B (Radiated Emissions), CEI EN 55024:1999, CEI EN 55024:A2/2003, CEI EN
55024:IS1/2008 (Radio Frequency Electromagnetic Fields, 50Hz Magnetic Field Immunity Test and
Electrostatic Discharges – ESD).
For a proper operation of this unit, 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 la el a ove, printed on the product case, indicates that the product, when no more usa le, can’t e
treated as generic gar age, ut must e 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 e caused y a wrong treatment of this product as generic gar age.
Materials recycling helps saving natural resources. For more in-depth information a out recycling this
product, please contact M2Tech Srl.
W RNING: the information contained in this manual are considered to be reliable and accurate.
M2Tech reserves the right to change or modify the information any time, without prior advice. It’s up
to the customer to ensure that the manual being consulted is the latest version.

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384kHz/32bit ANALOG-TO-DIGITAL CONVERTER
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Dear customer,
thank you for purchasing JOPLIN. What you have is a first-rate analog-to-digital converter
with many unique features conceived to o tain the est audio performance out of an
analog source.
Even if sending music to a PC or a Mac is nowadays quite simple, much harder is to
o tain the est sonic performance while doing it, due to intrinsic limits in digital audio
interfaces in computers. Please visit M2Tech we site (www.m2tech. iz) to find extensive
literature a out this topic.
JOPLIN overcomes all the limits of your computer’s audio card y implementing the latest
generation hiFace TWO technology, which uses proprietary drivers and asynchronous
data transfer, along with a sophisticated electronic design.
JOPLIN features a comprehensive set of output connections which suit virtually all digital
equipment around.
JOPLIN is provided with a very complete set of equalization and filtering options to
accommodate all kind of analog signals.
We feel that your expectations will e fulfilled y JOPLIN: you’ll hear your analog sources
turned into music files or digital streams in a way like never efore, prepare for a whole
new experience!
Nadia Marino, CEO
Please annotate here your JOPLIN serial num er for future reference:
S/N: ____________________________________
Date of purchase: _________________________

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384kHz/32bit ANALOG-TO-DIGITAL CONVERTER
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INDEX
1. Unpacking and placing the unit........................................................................................6
2. Front Panel ......................................................................................................................7
3. Back Panel.......................................................................................................................8
4. Remote Control................................................................................................................9
5. Connecting and powering the unit .................................................................................10
6. Driver installation ...........................................................................................................11
6.1. O taining the driver.................................................................................................11
6.2. Installing the driver on a Windows- ased PC..........................................................11
6.3. USB Control Panel ..................................................................................................16
6.4. Uninstalling the driver..............................................................................................17
6.5. True plug’n’play operation with Mac........................................................................19
6.6. True plug’n’play operation with Linux ......................................................................19
7. Configuring the computer to use the Joplin...................................................................20
7.1. Configuring a PC with Windows XP ........................................................................20
7.1.1. Configuring for Direct Sound with Windows XP ................................................20
7.1.2. Configuring for ASIO with Windows XP ............................................................21
7.2. Configuring a PC with Windows Vista or Windows 7...............................................21
7.2.1. Configuring for Direct Sound 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 WASAPI with Windows Vista or Windows 7.............................23
7.3. Configuring a Mac ...................................................................................................23
8. Configuring the Joplin ...................................................................................................24
8.1. Navigating the menu y the front panel controls .....................................................24
8.2. Navigating the menu y the IR remote....................................................................24
8.3. Parameters meaning and choices...........................................................................25
8.3.1. Input gain..........................................................................................................25
8.3.2. Input choice ......................................................................................................25
8.3.3. Sampling frequency ..........................................................................................26
8.3.4. Resolution.........................................................................................................26
8.3.5. Equalization curve ............................................................................................27
8.3.6. Display dimming ...............................................................................................27
8.3.7. High pass (anti-rum le) filter.............................................................................27
8.3.8. Low pass (anti-hiss) filter ..................................................................................27
8.3.9. MPX filter ..........................................................................................................28
9. Notes on equalization ....................................................................................................30
9.1. Why equalization is needed for records? ................................................................30
9.2. List of phono equalization curves availa le on the Joplin and notes on their usage
.......................................................................................................................................33
9.2.1. RIAA .................................................................................................................33
9.2.2. AES ..................................................................................................................33
9.2.3. Angel (ANG) .....................................................................................................34
9.2.4. Audiophile (AUDP)............................................................................................34
9.2.5. Capitol (CAP)....................................................................................................34
9.2.6. Colum ia (COL)................................................................................................34
9.2.7. HMV..................................................................................................................34
9.2.8. Decca/London FFRR ........................................................................................34

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384kHz/32bit ANALOG-TO-DIGITAL CONVERTER
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9.2.9. MGM.................................................................................................................34
9.2.10. NAB ................................................................................................................35
9.2.11. Oiseau-Lyre (OYLR) .......................................................................................35
9.2.12. Pacific Jazz (PACJ) ........................................................................................35
9.2.13. Philips .............................................................................................................35
9.2.14. RCA (RCA1, RCA2 and RCAO) .....................................................................35
9.2.15. Brunswick .......................................................................................................35
9.2.16. Colum ia 1925, Colum ia 1938 and Colum ia England (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 9.5cm/s and 19cm/s (3¾ ips and 7½ ips) and CCIR/IEC for
38cm/s (15 ips) (IEC1 and IEC3)................................................................................37
9.3.2. NAB for 9.5cm/s (3¾ ips) and NAB for 19cm/s (7½ ips)...................................37
9.4. Acquiring with equalization......................................................................................37
9.5. Interfacing a cartridge or a tape head......................................................................37
10. Using a power supply different from the standard one.................................................38
11. Cleaning the unit..........................................................................................................38
12. Technical Specifications ..............................................................................................39

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384kHz/32bit ANALOG-TO-DIGITAL CONVERTER
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1. Unpacking and placing the unit
Place the carton ox on a ta le and open it y removing or cutting the adhesive tape.
Extract the foam upper cover. You should find the following items:
• one Joplin ADC;
• one wall adapter;
• one A-B USB ca le;
• a remote control.
Should one or more items e missing, please contact your dealer or local distri utor.
Extract the Joplin from the foam container and place it on a sta le ase, far from heat
sources. Avoid the direct sunlight on the unit. Allow for enough room around the unit for
venting. The Joplin is a high efficiency design so little heat is produced during normal
operation; anyway, it’s etter allow for adequate venting. Avoid smoke, humidity, moisture
and water from reaching the unit.
Do not place the unit on thick carpets or inside a ox or piece of furniture, or in close
contact with curtains.

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384kHz/32bit ANALOG-TO-DIGITAL CONVERTER
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2. Front Panel
1
2
3
4
Figure 1
1) Standby/Exit button. This utton has two function. When in stand y, the unit is silent
and the display is off. Stand y ends when this utton is pressed. When the unit is
operative and the menu is not eing accessed, press this utton to put the unit in stand y.
When accessing the menu, press this utton to exit the menu without changing the
selected option.
2) Encoder knob and switch. Push the kno to access the menu. More pushes allow to
navigate the various menu items. When the desired item is accessed, rotate the kno to
choose the desired value for that item. Push the kno one last time to select the desired
value and exit the menu.
3) Display. Multifunction six digits led matrix display. During normal operation, it indicates
the sampling frequency. When accessing the menu, it indicates the menu item and current
value. When clipping is reached on the analog input, it indicates the status y displaying
“CLIP”. When in stand y, a single led is on at the center of the display area. Its intensity is
set y menu.
4) VU-meter. It indicates the peak value for oth channels. Left channel is top, right
channel is immediately elow left channel. Its intensity is set y menu.

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384kHz/32bit ANALOG-TO-DIGITAL CONVERTER
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3. Back Panel
4
M2TECH JOPLIN
384 H 32BIT ANALOG-TO-DIGITAL CONVERTER k Z
DC IN
15VDC
TOSLINK OUT
USB 2.0
AES/EBU OUT
S/PDIF OUT S/PDIF IN
MADE IN ITALY
S/N:
LEFT INRIGHT IN
5
6
7
8
9
10
11
GND
12
Figure 2
4) Right channel analog input. Connect to right channel of the analog source output.
RCA female connector.
5) Left channel analog input. Connect to left channel of the analog source output. RCA
female connector.
6) ES/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 data streams. RCA female connector.
9) ToslinkTM optical digital output. Optical output for ToslinkTM ca les. ToslinkTM
connector.
10) USB 2.0 output. Connect to a PC with Windows or Linux or MacIntosh with an USB
2.0 compliant A-B ca le. USB 2.0 B female connector.
11) Power supply input. Connect the wall adaptor provided with the unit or any other
power supply capa le of 15V/500mA. 5.5mm/2.1mm supply jack (female, tip is positive).
12) Ground (chassis) post. When necessary, connect this post to the chassis wire from
the source, to reduce hum and noise pickup.

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384kHz/32bit ANALOG-TO-DIGITAL CONVERTER
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4. Remote Control
OK >
>
>
>
MENU/ESC
M2TECH
1
2
3
4
1) Standby. Push this utton to put the unit in stand y and to activate it.
4) Menu/Esc. Push this utton 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 down
to scroll through the various menu items. Push arrow left and arrow right to choose the
value for the selected item.
4) OK. When accessing the menu, push this utton to update the current item with the
displayed value.

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384 k H z /32bit ANALOG-TO-DIGITAL CONVERTER
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5. Connecting and powering the unit
DVICE: all connections to other equipment in the system must be done when all
equipment are off. Failing to comply to this advice may expose the Joplin
JoplinJoplin
Joplin to the risk
of damages.
DVICE: Windows users must install the driver prior to connecting the Joplin
JoplinJoplin
Joplin to the
PC (please refer to section 6).
Please refer to section 3, “Back Panel Description”.
Connect the “B” plug of a 2.0 USB A-B ca le to the USB connector (Figure 2, 10) of the
Joplin.
Connect the “A” plug of the ca le 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
outputs of your analog source ( e it a turnta le, a tuner, a tape recorder or even the tape
rec output of your amplifier).
Connect a digital ca le with suita le termination (RCA, XLR or optical Toslink™) from the
Joplin to your amplifier’s digital inputs or to a DAC (Figure 2, 6/7/9).
If you need to route the output of a digital source to your computer or to the amplifier, you
may connect the source to the Joplin using an RCA digital interconnect (Figure 2, 8).
Connect the wall adaptor provided with the Joplin or any other 15V/500mA power supply
to the supply connector (Figure 2, 11) of the Joplin.

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384 k H z /32bit ANALOG-TO-DIGITAL CONVERTER
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6. Driver installation
The Joplin is USB 2.0 Audio compliant. This means that no driver is needed with Apple
computers, nor with Linux- ased PC’s. The latter will need ALSA to operate the Joplin.
Windows is presently not compati le with USB 2.0 Audio, so no native support is availa le.
In this case, M2Tech provides a driver which needs to e installed prior to access the
Joplin via USB.
6.1. Obtaining the driver
The Windows driver for the Joplin is availa le on the M2Tech we site, in the page
dedicated to the Joplin (www.m2tech. iz/joplin.html). The driver is contained in self-
extracting file.
6.2. Installing the driver on a Windows-based PC
The procedure is almost the same for Windows XP, Windows Vista and Windows 7.
Dou le-click on the 7-Zip folder to automatically extract the files in a directory of your
choice (Figure 4).
Figure 4
Amongst the files extracted is “setup.exe”. Dou le-click on its icon to launch it and follow
the indications provided y the setup program (Figure 5).

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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 point, it will ask you to connect
the Joplin in one of the USB ports (Figure 6).
Figure 6

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Follow the indications and plug the device in one port, then click on “Next”. You’ll e asked
to choose the installation directory (Figure 7). After choosing it, click on “Install”.
Figure 7
The installation process continues showing the progress (Figure 8).
Figure 8

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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 Device Manager should e
checked. The Joplin will e listed under “Audio, Video and Games Controllers” (Figure 10
on next page).

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Figure 10

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6.3. USB Control Panel
A control panel is installed together with the driver, which can e used to optimize Joplin’s
USB port performance (Figure 11). More details on the Control Panel’s features in the
application note App002.
Figure 11

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6.4. Uninstalling the driver
Sometimes it is necessary to uninstall the driver to roll ack 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 the list. Dou le-click on it to launch uninstalling.
Figure 12
The installation wizard, which also handles uninstalling, will show up (Figure 13 on next
page). Click on “Uninstall” to start uninstalling.

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Figure 13
At this point, the wizard will show up the installation progress (Figure 14), up to the end.
Figure 14

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After the uninstalling of all files related to the driver is complete, the “Next” utton will e
ena led. Click on it. The final message will appear (Figure 15). Click on “Finish” to
complete uninstalling.
Figure 15
6.5. True plug’n’play operation with Mac
Mac computers with OSX 10.6.4 and later have a native support for audio devices
compliant with USB 2.0 Audio 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 e immediately recognized y the OS and ready to use. Macs with
older OS need update to use the Joplin.
6.6. True plug’n’play operation with Linux
Linux has a native support for audio devices compliant with USB 2.0 Audio class ased on
ALSA. 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 PC with Linux and it will e
immediately recognized y the OS and ready to use. ALSA version needs to e 1.0.24 or
later.

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7. Configuring the computer to use the Joplin
JoplinJoplin
Joplin
7.1. Configuring a PC with Windows XP
A PC with Windows XP can use the Joplin in two different ways: Direct Sound (DS) and
ASIO. The former is suita le for recorders which can’t operate in ASIO mode, while the
latter can e chosen (for etter performance) with players which can operate in ASIO
mode. Please consider that it-perfect operation is ensured in ASIO mode only.
7.1.1. Configuring for Direct Sound with Windows XP
Connect the Joplin to your PC. Then, go to the Control Panel and launch the Sound and
Audio Peripherals utility.
Select the Audio ta . In the Predefined Peripheral drop-down menu of the Record area,
select “M2Tech Audio 2.0 Input” (see figure 16).
Figure 16