AKG DMS Tetrad User manual

DMSTetrad
USER INSTRUCTIONS
............................
2
Please read the manual before using the equipment!
BEDIENUNGSANLEITUNG .................... 22
Bitte vor Inbetriebnahme des Gerätes lesen!
MODE D’EMPLOI................................. 42
Veuillez lire cette notice avant d’utiliser le système!
MODO DE EMPLEO.............................. 62
¡Sirvase leer el manual antes de utilizar el equipo!

2 DMSTetrad
Table of Contents
1Safety and the environment.......................................................................................3
Safety..........................................................................................................................3
Environment ................................................................................................................3
2Description.................................................................................................................4
Introduction .................................................................................................................4
Scope of delivery..........................................................................................................4
Optional accessories ....................................................................................................4
Receiver DSRTetrad .....................................................................................................4
Front panel ............................................................................................................5
Rear panel.............................................................................................................6
DHTTetrad D5 handheld transmitter ..............................................................................7
Controls.................................................................................................................7
DHTTetrad P5 handheld transmitter...............................................................................8
DPTTetrad bodypack transmitter ...................................................................................9
Controls.................................................................................................................9
Microphones, instrument cable .............................................................................10
3Installation and Connection .....................................................................................11
Attaching antennas ....................................................................................................11
Attaching antennas to the rear panel .....................................................................11
Attaching antennas to the front panel on the rack brackets.....................................11
Positioning the receiver ..............................................................................................11
Rack assembly...........................................................................................................11
Connecting the receiver to the mains voltage...............................................................12
Connecting the audio outputs of the DSRTetrad receiver...............................................12
Connecting the receiver to a balanced input...........................................................12
Connecting the receiver to a speaker.....................................................................12
4Setting up ................................................................................................................13
Setting up the receiver................................................................................................13
Inserting and testing batteries in the handheld transmitter DHTTetrad............................13
Inserting and testing batteries in the pocket transmitter DPTTetrad ...............................13
Identifying the channel and/or appliance......................................................................14
Assign the transmitter to a free channel or change the channel.....................................14
Registering a new transmitter on the receiver ..............................................................14
Setting up the handheld transmitter.............................................................................15
Setting up the pocket transmitter ................................................................................15
Connecting a microphone .....................................................................................15
Connecting an instrument.....................................................................................16
Adjusting the audio level on the receiver......................................................................16
Adjusting the internal interference protection ...............................................................16
Switching off the DMSTetrad system...........................................................................16
5Microphone technique.............................................................................................17
DHTTetrad handheld transmitter..................................................................................17
Working distance and proximity effect ...................................................................17
Angle of incidence................................................................................................17
Feedback.............................................................................................................17
Backing vocals.....................................................................................................17
DPTTetrad bodypack transmitter .................................................................................18
C111 LP ear hook microphone..............................................................................18
Putting on the microphone....................................................................................18
Windshield...........................................................................................................18
Moisture shield ....................................................................................................18
6Cleaning...................................................................................................................19
Cleaning the surfaces.................................................................................................19
Internal windshield of handheld transmitter..................................................................19
7Troubleshooting.......................................................................................................20
8Technical data .........................................................................................................21
Table of Contents

DMSTetrad 3
Safety and the environmen
t
Do not spill any liquids on the equipment.
Do not place any containers containing liquid on the device or the power pack.
The equipment must only be used in dry rooms.
The equipment must only be opened, serviced, and repaired by authorized personnel. The
equipment contains no user-serviceable parts.
Before connecting the equipment to power, check that the AC mains voltage stated on the
supplied AC adapter is identical to the AC mains voltage available where you will use the
equipment.
Only operate the equipment with the supplied AC adapter with a 12 V DC output. Using
adapters with a different output voltage or current type may cause serious damage to the unit.
If any solid object or liquid should get into the equipment, shut down the system immediately.
Disconnect the AC adapter from the power outlet at once and have the equipment checked by
our customer service department.
If the equipment is not going to be used for a long time, disconnect the AC adapter from the
power outlet. Please note that if you turn the equipment off while leaving the AC adapter
plugged in, it is not fully isolated from the power supply.
Do not place the equipment near heat sources such as radiators, heating ducts, amplifiers,
etc. and do not expose it to direct sunlight, excessive dust, moisture, rain, mechanical
vibrations, or shock.
To avoid hum or interference, route all audio lines, particularly those connected to the
microphone inputs, away from power lines of any type. If you use cable ducts, be sure to use
separate ducts for the audio lines.
Clean the equipment with a moistened (not wet) cloth only. Be sure to disconnect the AC
adapter from the power outlet before cleaning the equipment. Never use caustic or scouring
cleaners or cleaning products containing alcohol or solvents since these may damage the
enamel and plastic parts.
Only use the equipment for the applications described in this manual. AKG cannot accept any
liability for damages resulting from improper handling or misuse.
The power supply unit consumes a small amount of electricity even when the unit is switched
off. To save energy, unplug the power supply unit from the socket if you are not going to be
using the unit for some time.
The packaging is recyclable. Dispose of the packaging in an appropriate recycling collection
system.
If you scrap the unit, separate the case, electronics and cables and dispose of all the
components in accordance with the appropriate waste disposal regulations.
1Safety and the environment
Safety
Environment

4 DMSTetrad
Description
Thank you for your decision to buy an AKG product. Please read the user instructions
carefully before using the unit and keep them in a safe place so that you can refer to them in the
future at any time. We wish you a lot of fun and success!
The DMSTetrad is available in 3 sets with receiver DSRTetrad:
DMSTetrad Performer Set DMSTetrad Vocal Set P5 DMSTetrad Vocal Set D5
1 receiver DSRTetrad
1 pocket transmitter DPTTetrad
1 MKG L instrument cable
1 C111 LP ear hook microphone
2 detachable antennas
2 antenna attachment cables
2 size AA batteries
2 rack brackets incl. mounting material
1 mains adapter (EU/UK/US)
1 warranty card
1 quick start guide
1 receiver DSRTetrad
1 handheld transmitter DHTTetrad P5
2 detachable antennas
2 antenna attachment cables
2 size AA batteries
1 stand adapter (SA63 CD)
2 rack brackets incl. mounting material
1 mains adapter (EU/UK/US)
1 warranty card
1 quick start guide
1 receiver DSRTetrad
1 handheld transmitter DHTTetrad P5
2 detachable antennas
2 antenna attachment cables
2 size AA batteries
1 stand adapter (SA63 CD)
2 rack brackets incl. mounting material
1 mains adapter (EU/UK/US)
1 warranty card
1 quick start guide
Check that the packaging contains all of the items listed for your system. If anything is missing,
please contact your AKG dealer.
Optional accessories can be found at www.akg.com. Your dealer will be happy to advise you.
The DSRTetrad is a stationary receiver for up to 4 transmitters of the DMSTetrad system.
The DSRTetrad operates in the 2.4 GHz ISM frequency range. Digital and bidirectional
communication between transmitter and receiver. Uncompressed (24 bit) and encrypted (128 bit
AES) transmission.
NOTE
To ensure error-free operation, please make sure that other devices that operate in the 2.4 GHz
range (e.g. Wi-Fi, Bluetooth, access points) are switched off.
If this is not possible, you can increase the resilience of the system to other 2.4 GHz devices with
the INTERFERENCE PROTECTION switch (11) on the receiver. (Position "MID" or "HIGH")
2Description
Introduction
Scope of delivery
Optional accessories
Receiver DSRTetrad

DMSTetrad 5
Description
Front panel
Figure 1: Front panel controls on the DSRTetrad receiver
NOTE
The controls (2 and 3) as well as the LEDs (4 to 6) are identical for all channels.
1ON/OFF button: If the receiver is turned on and ready for operation, this button is lit green. To
turn off the DMSTetrad system, simply switch off the receiver. Switching off the receiver
switches off all transmitters connected to this receiver.
2VOLUME potentiometer: This potentiometer allows continuous adjustment of the audio
output level on this channel (12). The mixing function means that this potentiometer also
influences the sum output (14) of the DSRTetrad.
3CONNECT: This button has two functions:
Press briefly: Check the transmitter assigned to this channel.
Press and hold (approx. 2 seconds): Assign a transmitter to a free channel or
register a transmitter on this channel.
4BAT LED: This LED lights up when the batteries of the transmitter registered on this channel
are starting to fade. If the LED starts to flash red the batteries will be flat within about one hour.
Replace batteries as soon as possible.
5LINK LED: This LED is green when a registered transmitter on this channel is active and ready
for operation. The LED flashes green during channel identification and channel assignment.
6CLIP LED: This LED is red if the audio level on this channel is too high.
7Detachable antennas: The best transmission and reception performances are achieved
when both antennas are pointing upwards in "normal position" (see image on the cover page).
DSRTetrad
1
2
3
5
4
67

6 DMSTetrad
Description
Rear panel
Figure 2: Rear panel controls on the DSRTetrad receiver
8Antenna connectors: Serve to connect the detachable antennas (7) or external antennas.
9DC IN jack 12 V, 0.5 A: For connecting the provided AC adaptor.
10 Strain relief: For the supply cable of the provided AC adaptor.
11 INTERFERENCE PROTECTION switch: For adjusting the internal interference protection.
12 Channel Out/balanced (x 4): Balanced audio output on 3-pole XLR jack. This output
transmits the audio signal of the respective channel. You can connect the microphone inputs on
a mixer to these outputs, for example.
13 Sum output control to regulate the audio level by +20 dB.
14 MIX OUT/balanced (x 1): Balanced audio output on 3-pole XLR jack. This output transmits
the combined audio signal of all 4 channels and you can connect it directly to an active speaker.
DSRTetrad
8
9
10
11
13 14
12

DMSTetrad 7
Description
The DHTTetrad D5 handheld transmitter operates within the 2.4 GHz ISM frequency range. The
transmitter uses two antennas integrated within the housing.
The capsule in the transmitter is the patented dynamic AKG D5 capsule with its supercardioid
polar pattern. It provides low handling noise sensitivity, high gain before feedback and brilliant
sound quality, as well as a built-in wind and pop filter to reduce wind and breath noise.
Controls
15 Status LED: Indicates the transmitter's
operating status.
LED lit green: The transmitter is
connected to the receiver
LED lit red: From the moment the LED
changes to red, the battery capacity will
provide a maximum of one operating hour.
We recommend replacing the batteries
with new ones as soon as possible.
16 Battery cover: See “Inserting and testing
batteries in the handheld transmitter” (page 13).
17 On/Off button:
On: Power to the transmitter is on. The
transmitter is ready for use as soon as it is
switched on.
Off (Digital Mute): Power to the
transmitter is off.
18 Connect button: This button has two functions:
Press briefly: Check the assigned channel on the receiver
Press and hold down (approximately 2 seconds): Assign a free channel on the
receiver to this transmitter.
17 /18 On/Off / Connect button: Use the On/Off (17) and Connect button (18) to assign this
transmitter to a free channel on the receiver. After two minutes without radio contact to the
receiver, the transmitter switches off automatically.
19 GAIN switch: This slide switch allows you to set the audio input sensitivity of the transmitter
to one of two positions: "HIGH" = high input sensitivity, "LOW" = low input sensitivity.
20 Antenna section: The handheld transmitter has a digital diversity antenna system with two
antennas integrated within the housing.
NOTE
Do not hold the transmitter by the antenna section (20) as this will reduce the transmission range.
DHTTetrad D5 handheld transmitter
Figure 3: Controls on DHTTetrad D5
transmitter
15
18
19
20
16
17

8 DMSTetrad
Description
The DHTTetrad P5 handheld transmitter features a dynamic standard capsule with supercardioid
polar pattern.
The controls are identical with those of the DHTTetrad D5.
DHTTetrad P5 handheld transmitter

DMSTetrad 9
Description
You can use the DPTTetrad bodypack transmitter with both dynamic microphones and
condenser microphones operating on a supply voltage of approx. 4 V. Alternatively you may also
connect an electric guitar, electric bass or keytar.
The DPTTetrad operates within the 2.4 GHz ISM frequency range.
Controls
15 Status LED: Indicates the transmitter's operating
status.
LED lit green: The transmitter is connected to
the receiver
LED lit red: From the moment the LED changes
to red, the battery capacity will provide a
maximum of one operating hour. We
recommend replacing the batteries with new
ones as soon as possible.
17 On/Off button:
On: Power to the transmitter is on. The
transmitter is ready for use as soon as it is
switched on.
Off (Digital Mute): Power to the transmitter is
off.
18 Connect button: This button has two functions:
Press briefly: Check the assigned channel on
the receiver
Press and hold down (approximately 2
seconds): Assign a free channel on the receiver
to this transmitter.
17 /18 On/Off / Connect button: Use the On/Off (17) and Connect button (18) to assign this
transmitter to a free channel on the receiver. After two minutes without radio contact to the
receiver, the transmitter switches off automatically.
21 Audio input is a 3-pin mini-XLR connector. Automatically matches the connector pinout of
the recommended AKG microphones or the MKG L instrument cable.
22 Cover: The sliding cover prevents the transmitter from being switched on/off inadvertently
23 Belt clip: For fixing the bodypack transmitter to your
belt. Attach the bodypack transmitter to a belt or in a
pocket with the battery compartment cover facing away
from the body.
24 Battery compartment cover with integrated
screwdriver. See “Inserting and testing batteries in the
pocket transmitter” (page 13).
25 GAIN control: This rotary control allows you to match
the transmitter input gain to the connected microphone or
instrument.
DPTTetrad bodypack transmitter
Figure 4: Controls on DPTTetrad
transmitter
Figure 5: Attachment of
bodypack transmitter to belt
15
17
18
21
22
23 24
25

10 DMSTetrad
Description
Microphones, instrument cable
The following AKG microphones can easily be connected to the audio input of the DPTTetrad:
C111 LP, CK77 WR-L, HC577 L, CK97
The MKG L instrument cable from AKG allows you to connect an electric guitar, electric bass
or keytar to the bodypack transmitter.
The MKG L instrument cable is included in the DMSTetrad Performer Set and is also available
separately as an accessory.
NOTE
Keep the microphones used at least 10 cm away from the bodypack transmitter to prevent
interference in the microphone capsule from being audible in the audio transfer.