SPL MTC Mk2 Monitor and Talkback Controller User Manual

: June 4, 2024
: spl

Table of Contents

SPL MTC Mk2 Monitor and Talkback Controller
Getting started
Source selection
- Phonitor Matrix
Specifications
Security Advices
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Download This Manual (PDF format)

SPL MTC Mk2 Monitor and Talkback Controller

Getting started

Read the safety instructions starting on page 11.
Make sure that the mains voltage of the MTC Mk2 mentioned in the specifications (page 10) corresponds to the voltage of your region.
The power switch on the back of the MTC Mk2 must be in the off position.
(Off = O / On = I).

Connect the supplied power cord to the power connector of the MTC Mk2 and to a power outlet.
If the supplied power cord does not match your mains socket outlet, please contact your dealer.
The devices that are to be connected to the MTC Mk2 must be be switched off.
Connect the outputs of your analog sources to the analog inputs of the MTC Mk2. Please use appropriate audio cables (TRS, RCA).
Audio cables not included in the scope of delivery.
Connect audio cables between the MTC Mk2 and following amplifiers or active monitors (XLR, TRS).
Audio cables not included in the scope of delivery.

Connect headphones to the headphone outputs of the MTC Mk2.

Warning: Never connect a mono jack cable to the front panel stereo jack. Make sure that the stereo jack is fully inserted, otherwise a short circuit might damage the headphone amplifier.

Power on
Turn down the volume and the headphone volume of the MTC Mk2.
Switch on the power switch on the rear panel of the MTC Mk2 (On = I).
The Power LED and all activated switches light up.

SPL MTC Mk2 Monitor and Talkback Controller-1

Power off
Turn down the volume and the headphone volume of the MTC Mk2.
Switch off the power switch on the rear panel of the MTC Mk2 (Off = O).
The Power LED and all activated switches will no longer light up.

SPL MTC Mk2 Monitor and Talkback Controller-2

Source selection

Use the IN buttons to select one or multiple analog input sources:

IN A (TRS, balanced)
IN B (TRS, balanced)
IN C (TRS, balanced)
IN D (RCA, unbalanced)

SPL MTC Mk2 Monitor and Talkback Controller-3

Speaker selection
Use the SP 1, SP 2, SP 3 and SUB switches to activate the corresponding speaker outputs. Multiple selection is possible.

SP 1 (XLR)
SP 2 (XLR)
SP 3 (TRS, balanced)
SUB (XLR, mono signal, L+R summed)

Phonitor Matrix

The Phonitor Matrix enables speaker-like listening on headphones by blending the left and right signals, respectively time-delayed (interaural time difference) and attenuated (interaural level difference) to the opposite side.
The opening angle (angle – interaural time difference) is fixed at 30°.
The CROSSFEED control adjusts the interaural level difference. If the control is set to “0”, the Phonitor Matrix is deactivated.
The Phonitor Matrix parameter “Center” is fixed at a -1 dB attenuation.

Talkback
By pressing the Talkback button, the signal of the talkback microphone is mixed to the headphone output 2 (Artist) and the output CUE OUT. At the same time, the input source signal for headphone output 2 (Artist) and the output CUE OUT is attenuated by 3 dB.
The talkback LEVEL determines the volume of the talkback microphone signal.
Alternatively, the talkback function can be switched with a footswitch (jack connector on the rear panel of the MTC Mk2).

Cue Mix – the artist‘s mix
When CUE MIX is activated, the artist only hears the signal of the IN C/CUE MIX input on the headphone output 2 as well as on the CUE OUT (when the talkback function is acti-vated, he also hears the talkback microphone signal). This way, the artist can be fed with his individual monitor mix.
The Phonitor Matrix as well as the monitoring modes are deactivated when when CUE MIX is activated for headphone output 2 as well as on the CUE OUT.

Monitoring modes
With the channel swap function LR SWAP L and R of the input sources are swapped.
The phase inversion Ø inverts the phase of the input sources by 180°.
The MONO control can be used to check the mix for mono compatibility.
Tip: M/S – Mid or Side? By using the MONO and the phase invert switch in combination, it is possible to only monitor the M or S signal. When “Mono mode” and phase inversion is active, only the S signal is played back.
If the phase inversion is switched off, the mono signal corresponding to the M signal is played back. Separate monitoring of the M and S signals has become a standard for many mixing and mastering engineers.

DIP switches

With the DIP switches on the bottom of the device you can adjust the following settings:

DIP-Switch 1: ON = Attenuates the input signals for the artist and cue mix by an additional 10 dB when the talkback function is activated.
DIP-Switch 2: ON = All inputs are attenuated by 6 dB
DIP-Switch 3: ON = All inputs are attenuated by 10 dB
DIP-Switch 2 + 3 ON = All inputs are attenuated by 13 dB
DIP-Switch 4: ON = No function

Specifications

Analog inputs & outputs; XLR & TRS Jack (balanced), RCA

Internal Linear Power Supply with Toroidal Transformer

|
Operating voltage for analog audio| +/- 18 V
Operating voltage for relais und LEDs| + 12 V

Mains Power Supply

|
Mains voltage| 85-264 V AC / 47-440 Hz
Fuse| 1 A
Power consumption| 15 W

Dimensions & Weight

|
W x H x D (width x height x depth)| 272 x 91 x 275 mm
| 10.71 x 3.58 x 10.83 inch
Unit weight| 3 kg
| 6.61 lbs
Shipping weight (incl. packaging)| 4.2 kg
| 9.26 lbs

Security Advices

Before starting up the device:

Read thoroughly and follow the security advices.
Read thoroughly and follow the Quickstart.
Observe all warning instructions on the device.
Please keep the user manual as well as the security advices in a safe place for future reference.

Warning
Always follow the security advices listed below to avoid serious injuries or even deadly accidents due to electric shocks, short circuit, fire or other dangers. The following are examples of such risks and do not represent an exhaustive list:

Power supply/Power cord
Do not place the power cord near heat sources such as heaters or radiators and do not excessively bend or otherwise damage the cord, do not place heavy objects on it, or place it in a position where anyone could walk on, trip over, or roll anything over it.
Only use the voltage indicated on the device.
Only use the supplied power cord/plug.
If you intend to use the device in an area other than in the one you purchased it, the included power cord may not be compatible. In this case please contact your dealer.
Be sure to connect the device to an appropriate mains socket outlet with a protective grounding connection. Improper grounding can cause electrical shock.

Do not open
This device contains no user-serviceable parts. Do not open the device or attempt to disassemble the internal parts or modify them in any way. If it should appear to be malfunctioning, turn off the power immediately, unplug the power cord from the mains socket outlet and have it inspected by a qualified professional.

Water warning
Do not expose the device to rain, or use it near water or in damp or wet conditions, or place anything on it
(such as vases, bottles or glasses) containing liquids which might spill into any openings. If any liquid such as water seeps into the device, turn off the power immedi-ately and unplug the power cord from the mains socket outlet. Then have the device inspected by a qualified professional.
Never insert or remove an electric plug with wet hands.

Fire warning
Do not put burning items, such as candles, on the unit. A burning item may fall over and cause a fire.

Lightning
Before thunderstorms or other severe weather, discon-nect the device from the mains socket outlet; do not do this during a storm in order to avoid life threatening lightning strikes. Similarly, disconnect all the power connections of other devices, antenna and phone/network cables which may be interconnected so that no damage results from such secondary connections.

If you notice any abnormality
When one of the following problems occur, immediately turn off the power switch and disconnect the electric plug from the mains socket outlet. Then have the device inspected by a qualified professional.

T0he power cord or plug gets frayed or damaged.
The device emits unusual smells or smoke.
An object has fallen into the unit.
There is a sudden loss of sound during the use of the the device.

Caution
Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others, or damage to the device or other property. These precautions include, but are not limited to, the following:

Power supply/Power cord
When removing the electric plug from the device or an mains socket outlet, always pull on the plug itself and not the cord. Pulling the cord may damage it.
Unplug the device from the mains socket outlet when the device is not used for a while.

Location
Do not place the device in an unstable position where it might accidentally fall over.
Do not block the vents. This device has ventilation holes to prevent the internal temperature from rising too high. In particular, do not place the device on its side or upside down. Inadequate ventilation can result in overheating, possibly causing damage to the device or even fire.
Do not place the device in a location where it may come into contact with corrosive gases or salty air. This may result in malfunction.
Before moving the device, remove all connected cables. When setting up the device, make sure that the mains socket outlet you are using is easily accessible. If some trouble or malfunction occurs, immediately turn off the power switch and disconnect the plug from the mains socket outlet. Even when the power switch is turned off, electricity is still flowing to the product at a minimum rate. When you are not using the device for a long time, make sure to unplug the power cord from the wall mains socket outlet.

Connections
Before connecting the device to other devices, power down all devices. Before power on or off the devices, set all volume levels to minimum.
Only use appropriate cables to connect the device with other devices. Make sure that the cables you use are intact and comply with the electrical specifications of the connection. Other connections can lead to health risks and damage the equipment.

Handling
Operate the controls and switches only as described in the manual. Incorrect adjustments outside safe para-meters can lead to damage. Never use excessive force on the switches or controls.
Do not insert your fingers or hands in any gaps or open-ings of the device.
Avoid inserting or dropping foreign objects (paper, plastic, metal, etc.) into any gaps or openings of the device. If this happens, power down immediately and unplug the power cord from the mains socket outlet. Then have the device inspected by a qualified profes-sional.
Do not expose the device to excessive dust or vibrations or extreme cold or heat (such as direct sunlight, near a heater or in a car during the day) to prevent the possi-bility of causing damage to the housing, the internal components or unstable operation.
If the ambient temperature of the device suddenly changes, condensation can occur (if for example the device is relocated or is affected by a heater or air condi-tioning).
Using the device while condensation is present may result in malfunction. Do not power on the device for a few hours until the condensation is gone. Only then it is safe to power on.

Cleaning
Disconnect the device from your mains socket outlet before cleaning.
Do not use any solvents, as these can damage the chassis finish. Use a dry cloth, if necessary, with an acid-free cleaning oil.

Disclaimer
Windows® is a registered trademark of Microsoft® Corporation in the United States and other countries. Apple, Mac and Macintosh are trademarks of Apple Inc., registered in the U.S. and other countries.
The company names and product names in this manual are the trademarks or registered trademarks of their respective companies.
SPL and the SPL Logo are registered trademarks of SPL electronics GmbH.
SPL cannot be held responsible for damage caused by improper use or modification of the device or data that is lost or destroyed.

Notes on Environmental Protection

At the end of its operating life, this product must not be disposed with regular household waste but must be returned to a collection point for the recycling of electrical and elec-tronic equipment.
The wheelie bin symbol on the product, user manual and packaging indicates that.
For proper treatment, recovery and recycling of old products, please take them to applicable collection points in accordance with your national legislation and the Directives 2012/19/EU.
The materials can be reused in accordance with their markings. Through reuse, recycling of raw materials, or other forms of recycling of old products, you are making an important contribution to the protection of our environment.

Your local administrative office can advise you of the responsible waste disposal point.
This directive only applies to countries inside the EU. If you wish to discard devices outside the EU, please contact your local authorities or dealer and ask for the correct method of disposal.
WEEE-Reg-No.: 973 349 88
© 2022 SPL electronics GmbH | spl.audio

Further information: mtc-mk2.spl.audio