MBL 1611 F User manual
ENGLISH
DEUTSCH
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mbl 1611 F
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Scope of Delivery
mbl 1611 F D/A converter
A/C power cord
Important Information!
Attention! Keep the converter away from high humidity, vibration, excessive
dust and direct sunlight. Excessive heat or cold will aect the converter´s func-
tionality. The permitted operating temperature is 10°C up to 50°C. Avoid ex-
treme variations in temperature. Do not operate the converter near other elec-
tric appliances (for instance neon light and motors). The converter should not
be opened without the assistance of a qualified technician!
KETI, CE-Marking
This product conforms to the requirements of the EMC directive and low-volt-
age directive. Your MBL component complies with the household power and
safety requirements in your area.
Warranty
Please pay attention to the details given in the warranty card which accompa-
nies the unit. Warranty is only issued, if you send back the warranty card.
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Page
3 mbl 1611 F Views
3 mbl 1611 F Front View
4 mbl 1611 F Rear View
5 1. Placement
5 2. Operation
5 2.1 Input Selectors
5 2.2 Function Keys
6 3. Display Functions
7 4. Connections
7 4.1 Inputs
7 4.2 Cable
8 4.3 Outputs
8 4.3 a) Digital
8 4.3 b) Analog
9 5. Operation
9 5.1 Line Voltage
9 5.2 Changing the Line Voltage
9 5.3 Fuses
9 5.4 Switch on the D/A Converter
10 6. Maintenance
11 7. Troubleshooting
12 8. Booting into Service Mode
13 mbl 1611 F Specifications
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input selectors
function keys
display
standby LED
disp.o LED
error LED
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digital inputs
digital outputs
options:
6: XLR
7: RCA
8: BNC
9: glass fibre
10: Toslink™
BNC (option)
analog outputs
11,12: RCA outputs right 11,12: RCA outputs left
13: XLR output right 13: XLR output left
4: USB link
5: Toslink™ 3: RCA 2: RCA 1: XLR
RCA
fuse holder
power switch
connector for
power cord
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1. Placement
Protect the D/A converter from dampness and vibrations, as well as excessive dust. It should not be exposed to
direct sunlight or strong heat sources (heating). The component should not be placed in close proximity to electric
interference sources (fluorescent lamps and motors).
2. Operation
2.1 Input Selectors
The displayed number on the left corresponds to the digital input on the rear side of the unit.
input signal
Display Unit Connector
input 1,6input 1,6 XLR (AES/EBU) 110 Ohm
input 2,3,7input 2,3,7 RCA (S/P-DIF, AES-Coax)
input 8input 8 BNC (S/P-DIF, AES-Coax)
input 4 input 4 USB link
input 5,10 input 5,10 TOSLINK™
input 9input 9 glass fibre
The inputs 6, 7, 8, 9 and 10 are options.
2.2 Function Keys
All important functions of the mbl 1611 F D/A converter can be operated via remote control.
Mute:This function mutes the sound.
True audio:The true audio may be changed between on and o. In true audio mode the display shows true au-
dio. The feature true audio on should be selected, because this setting ensures maximum sound quality. With true
audio mode being active, internal error correction is disabled. So audio data from audio source is not influenced.
Display:Dims the display in seven steps from very bright to display o. If the display is turned o, the disp. o
indicator LED is on.
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3. Display Functions
Emphasis:If the D/A converter receives a signal of an emphasis coded disc,
the display shows emphasis. The internal de-emphasis is activated.
DVD-A:If the DAC detects a signal with 96 kHz on the activated input, the
display shows the DVD-A sign.
CD:If the DAC detects a signal with 44,1 kHz on the activated input, the display
shows the CD sign.
V-DVD:If the DAC detects a signal with 48 kHz on the activated input, the dis-
play shows the V-DVD sign.
USB:If the DAC detects an USB signal via USB link, the display shows the USB
sign.
Note: The displayed sources (DVD-A, CD and V-DVD) only depend on the sam-
ple frequency (44,1, 48 or 96 kHz).
32 kHz, 88,2 kHz:If the DAC detects a signal with 32 kHz (also 88,2 kHz)
on the activated input, only the frequency is shown on the display.
o range:If the DAC detects none of the specified frequencies, the display
shows the information “o range”.
no signal:If there is no valid source connected to the selected inputs, the
display shows the information “no signal”. The display will also show this infor-
mation, if the source´s data format is incompatible.
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Error:If true audio mode is not active: the Error indicator LED is on, when transmission of digital audio data
between audio source (e.g. CD transport) and mbl 1611 F is disturbed (including defected transport, cable or wrong
input selected).
If true audio mode is active: the Error indicator LED is on, when transmission of digital audio data between audio
source (e.g. CD transport) and mbl 1611 F is disturbed (including defected transport, cable or wrong input selected)
or when received data is not valid. This happens also during track skipping, during the playback of scratched discs
or when other functions are engaged on the CD-transport like fast forward or back, stop or pause.
An error caused by a dirty disc can be avoided by cleaning it. If after thorough cleaning an error still occurs at true
audio on, the disc surface is probably scratched. The disc can now only be played in function position true audio
o. Unfortunately, at this error level sound reproduction quality will be limited.
4. Connections
4.1 Inputs
The following inputs are available:
2 x AES/EBU @ XLR (1, 6)
3 x S/P-DIF, AES-Coax @ RCA (2,3,7)
1 x S/P-DIF, AES-Coax @ BNC (8)
1 x USB link (4)
2 x TOSLINK™ (5, 10)
1 x glass fibre (9)
The inputs 6, 7, 8, 9 and 10 are options.
4.2 Cable
Appropriate cabling choices are dependent on the length of the transfer distance from digital source to the mbl
1611 F.
AES/EBU @ XLR:A balanced pair cable with 110 Ohm characteristic impedance and 46pF/m capacity. Maxi-
mum possible length 150m.
S/P-DIF, AES-Coax @ RCA:Asymmetrical coaxial cables with 75 Ohm characteristic impedance and 65pF/m
capacity. Maximum possible length 150m.
S/P-DIF, AES-Coax @ BNC:Asymmetrical coaxial cables with BNC plug connectors, 75 Ohm characteristic
impedance and 65pF/m capacity. Maximum possible length 150m.
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TOSLINK™:The transfer distance cable is composed of a plastic material - insulated conductor (universal Plas-
tic Fibre). The designation sounds APF 970/1000 with an attenuation of 400 dB/km at a wavelength of 660 nm. The
ideal cable length is between 1m and 2m. The use of longer cable is not recommended.
USB Link:USB port for connection to computer via USB cable. The recommended maximum cable length is 2
meter.
For best sound quality you should always use a high quality audio cable.
Maximum recommended cable length on dierent digital inputs:
Connector max. recommended cable length
Plastic insulated conductor (TOSLINK™) 2 meter
Combination (AES/EBU, S/P-DIF, AES-coax @ RCA and @ BNC) 20 meter
USB cable 2 meter
4.3 Outputs
4.3 a) Digital
The mbl 1611 F is equipped with a digital output (S/P-DIF @ RCA). This output can not be muted and it cannot be
switched o. The digital output of the 1611 F outputs signals with the following sampling frequencies according to
the inputs signal: 96kHz, 88,2kHz, 48kHz, 44,1kHz or 32kHz.
4.3 b) Analog
There are 2 asymetrical outputs with RCA connectors and 1 balanced output with XLR connectors. All outputs can
be used simultaneously. Please note the configuration for left and right channels.
11: RCA
12: RCA
13: Symmetric 3-pin XLR
When connecting cable, please pay attention to the fact that all outputs are paired for use (11 for 11, 12 for 12 and
13 for 13).
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5. Operation
5.1 Line Voltage
This component is supplied with a low radiating toroidal transformer. It works with an a/c voltage of 230V or 115V
50/60 Hertz. If the unit is configured für 115Vac, it is indicated on the rear panel. The line voltage selection must be
changed when the unit should be used in a country with a dierent line voltage.
5.2 Changing the Line Voltage
The switching of line voltage is done internally by modifying wire bridges. It can be accomplished only by a quali-
fied engineer or by a service facility. Changing of the line voltage will not eect the validity of your warranty.
5.3 Fuses
Attention: Before examining the fuse, disconnect the power plug!
The fuse holder is located on the rear panel of the D/A. In the fuse holder two active fuses can be found: the op-
erational and reserve (type: 5x20mm). If a change of the line voltage is aected, the value of both fuses must also
be changed (230Vac / 0.5 AT or 115Vac / 1.0 AT).
5.4 Switch on the D/A Converter
After all cable connections (input, output and power line connection) are made, the mbl 1611 F can be switched
on with the power switch on the rear panel. After that you can select the input to wich the source is connected.
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6. Cleaning the Unit
Unplug the unit before cleaning!
To clean the exterior surfaces of your mbl 1611 F use a dry, soft cloth. To wipe o fingerprints and other grease
spots use a soft, wet cloth moistened with a mild detergent dissolved in water.
Caution! The cloth must never be dripping wet! If water or other fluids enter the cabinet, you risk damaging the
unit.
Never use scouring pads, steel wool, scouring powders or harsh chemical agents, alcohol, thinners, benzine, in-
secticide or other volatile substances, as these will destroy the finish of the cabinet.
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7. Troubleshooting
If no function indicator LED illuminates
• Check whether the power plug is inserted firmly into the connector and that the power switch is pressed. Pay
attention also to whether the power line is firmly inserted to the wall outlet
• Review the fuses on the back of the D/A converter. Examine the fuse and replace it, if necessary.
To examine the fuses, the power cord must be disconnected from the component.
If no signal is detected at the D/A converter’s output
• Check the source detection on the display.
• Does the source function properly?
• Check connection between D/A converter and source.
• Check connection between D/A converter and preamplifier.
• Check whether the ‘Mute’ - function is engaged.
If any other problems or questions arise, please contact your MBL dealer or MBL customer service.
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8. Booting into Service Mode
1. turn o main power
2. press and hold the 4th button on the right button-row
3. turn on main power
4. release button
The service mode consists of six entries, four are displayed on the first, two on the second page.
You may switch between the pages by pressing button R1 ( = upmost button on the right button-row).
The entries are then selected by pressing button 1-4 on the left hand side.
To get back into main menu press button R1 (exept in „AD-Test“ and „System Defaults“).
Entries on 1st page:
1. RC5-Test: Shows the codes received from a RC5 remote control. „T“ is the toggle-bit (it must dier every
time you press a button). „Q“ is the bit-timing (a good value is between 40 and 45).
2. AD-Test: Tests the internal AD-Converters for the buttons.
3. VFD-Test: Completely lights up the VFD. You may check for defective pixels easily.
4. System Defaults: Deletes all settings that were saved previously during use. After pressing the button
wait for 5 seconds and cycle main power.
Entries on 2nd page:
1. Firmware: Shows the exact Firmware-Version incl. build and time.
2. Serial: Shows the system’s serial number (not yet implemented) and the model.
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a) General
D/A Converter Unit Multi level Delta Sigma
Sampling (f) up to 192 kHz
Digital filter Oversampling 16 times =705,6 kHz (44.1 kHz red book)
Switched capacitor filter Sample-and-hold 8 times (smoothing)
Converter (f) Oversampling 128 times = 5.6 MHz
Resolution 24 bit linear
Error Correction Repeat block on error
Signal/Noise-Ratio 117 dB
Supported Sampling (f) 96, 48, 44.1, 32 kHz
Voltage 230 V / 50 Hz
(factory set for destination country) or 115 V / 60 Hz
Power Consumption 16.5 (Stand-by)
21 VA (Idle)
30 VA (max)
Dimensions (W x H x D) 480 x 150 x 445 mm, 19 x 6 x 17.5“
Weight (net) 23 kg, 50.5 lbs
b) Digital Inputs
XLR (AES/EBU) 1 (+1 option)
Connector Style XLR
Input Impedance 110 Ohm
Nominal Voltage 2.5 Vp-p
Bandwidth 30 MHz
Pins Pin 1: ground, Pin 2: in-phase, Pin 3: o-phase
RCA (SP DIF) 1 (+1 option)
Connector Style RCA
Input Impedance 75 Ohm
Nominal Voltage 0.5 Vp-p
Bandwidth 30 MHz
Pins Internal conductor: in-phase, External conductor: ground
BNC (SP DIF) (1 option)
Connector Style BNC
Input Impedance 75 Ohm
Nominal Voltage 1 Vp-p
Bandwidth 30 MHz
Pins Internal conductor: in-phase, External conductor: ground
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Glas ST (1 option)
Wavelength 820 nm
Allowable Input Power 20 µW - 150 µW
Optimum Input Power 50 µW - 100 µW
Cut-o Frequency 30 MHz
TOSLINK™ 1 (+1 option)
Wavelength 660 nm
Allowable Input Power 3 µW - 30 µW
Optimum Input Power 10 µW
Cut-o Frequency 6 MHz
USB Link 1
Connector Style USB B type
Sample rate up to 24 bit
c) Digital Outputs
RCA (SP DIF) 1
Output Impedance 75 Ohm
Open Circuit Voltage 1.0 Vp-p
Operating Voltage 0.5 Vp-p
Cut-o Frequency 30 MHz
d) Analog Outputs
Connection 2 RCA, 1 XLR
Frequency Range DC - 20 kHz, +0.5 / -0.5 dB
Signal to Noise 117 dBr, 2 V
Dynamic 97 dB
Channel Separation 110 dB, 1 kHz
THD 0.0007%, 1 kHz
Output Level 2V, 1kHz (RCA); 4V,1kHz (XLR)
Output Impedance RCA = 100 Ohm, XLR = 200 Ohm
Design and specifications are subject to change without notice.
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mbl 1611 F
MBL Reference Line High End Audio Components
For best performance we recommend the High End Audio components of the
MBL Reference Line.
Your MBL dealer will help you to choose the optimal components for your
perfect High End Audio system.
mbl 1621 A CD Transport mbl 1611 F D/A Converter
mbl 101 E MKII Radialstrahler
mbl 6010 D Preamplifier
mbl 9007 Mono/Stereo Power Amplifier
mbl 101 X-treme Radialstrahler System
mbl 9011 Mono/Stereo Power Amplifier
mbl 9008 A Mono/Stereo Power Amplifier
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mbl 1611 F
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mbl 1611 F
Digital/Analog Wandler
Bedienungsanleitung
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Lieferumfang
mbl 1611 F D/A Wandler
A/C Netzkabel
Wichtige Informationen!
Achtung! Schützen Sie das Gerät vor hoher Luftfeuchtigkeit, starker Hitze oder
direktem Sonnenlicht. Betreiben Sie den Wandler nicht bei Temperaturen unter
10°C oder über 50°C. Der Standort des Gerätes sollte staubgeschützt und min-
destens 2 Meter von elektrischen Störquellen, beispielsweise Leuchtstoröhren
oder Motoren, entfernt sein. Setzen Sie das Gerät keinen starken Vibrationen
oder Erschütterungen aus.
KETI, CE-Marking
Dieses MBL Gerät entspricht den KETI sowie EMC Richtlinien.
Garantie
Bitte beachten Sie die dem Gerät beiliegende Garantiekarte. Die Garantie kann
ausschließlich nach Einsenden der originalen Garantiekarte gewährt werden.
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mbl 1611 F
Seite
20 mbl 1611 F Ansichten
20 mbl 1611 F Vorderansicht
21 mbl 1611 F Rückansicht
22 1. Aufstellung
22 2. Bedienung
22 2.1 Eingangswahltasten
22 2.2 Funktionstasten
23 3. Display
24 4. Verbindungen
24 4.1 Eingänge
24 4.2 Kabel
25 4.3 Ausgänge
25 4.3 a) Digital
25 4.3 b) Analog
26 5. Inbetriebnahme
26 5.1 Netzspannung
26 5.2 Änderung der Netzspannung
26 5.3 Sicherungen
26 5.4 Einschalten des Wandlers
27 6. Hinweise zur Pflege
28 7. Störungen und wie man sie behebt
29 8. Starten des Service Menüs
30 mbl 1611 F Technische Daten
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