Additional Information
The monitor
& Talkback controller (MTC) from SPL is a central analog volume
control for system independent stereo monitoring. Its features include
a Cue Mix for the musician (the musician’s track and track mix) along
with a Talkback communications option.
The advantages
of the MTC become especially apparent in combination with modern audio
and video production tools such as ProTools™, Nuendo™, Cubase™, Logic™,
Deck™ etc. Monitor levels and source management can be handled
independently of the software and with virtually no loss in quality.
You no longer need to set up additional aux sends for monitoring. In
addition, you won‘t have to worry about over- or underdriving the
converters due to monitor levels.
One of the MTC‘s
biggest advantages is the possibility to manage up to six different
stereo input sources: comparing and monitoring is much easier than
having to import all of your audio files and set up monitor mixes – not
to mention the inevitable A/D-D/A conversions.
SPL‘s renowned
electronic balancing circuitry forms the basis for the MTC‘s I/O
architecture. Its extended frequency range up to 100 kHz, exceptional
dynamic spectrum and excellent common mode rejection ensure specs that
exceed SACD standards, as only highest quality analog circuitry can
provide.
Last but not
least, the MTC‘s rugged and ergonomic desktop enclosure with its
slanted front panel harmonizes perfectly with the desktop production
environment.
Special Features
Status
LEDs
An LED over each front panel switch indicates activity by illuminating
when its corresponding switch is turned on.
If the Talkback function is activated by an external switch, the Talk
LED will nonetheless illuminate.
Master Volume
The master volume potentiometer globally controls volume for up to
three stereo speaker pairs. This analog control regulates the audio
signal directly to avoid any coloration/distortion typical of VCAs,
DCAs, etc., which require higher inter-channel tolerances and tend
toward higher distortion figures. Moreover, this potentiometer
possesses an optimal rotational torque and “feel” for precise hand
control.
Speaker Calibration
The MTC dispenses with speaker output trims, as they would
unnecessarily stress the signal pathes—all active speakers and also
power amps have input trims.
The adjustment process should begin with the quietest monitor pair
(smallest sound pressure level) with the input sensitivity at maximum
level.
Leaving the MTC Master Volume control as set, you then perform the same
adjustment for the other monitor/speaker pairs until each produces the
same sound level as the first pair. Lacking an sound pressure level
meter, you may still accomplish this adjustment well enough by ear.
Footswitch
This 1/4 inch footswitch input can accept an on/off switch or key that
allows remote control of the Talkback function. Any sort of switch or
key (including footswitches familiar to keyboard players) can be used
here.
Slave Out
The balanced 1/4 inch Slave Out jacks provide for summed output of all
active 2Tr inputs (Mix, 2TrA to 2TrD). As an example, the monitor
signal may also be routed to a recording medium, or, while one listens
to a CD player, the output may simultaneously be routed to a DAW. You
may likewise connect stereo metering equipment.
The musician‘s signal (coming from the Musician input) is not routed to
the Slave Out, as it is only used for latency-free monitoring, but not
for recording.
Talk Out
The Talk Out connection routes the dry Talkback mic signal through its
balanced 1/4 inch jack to create an alternative listening option (for
example, to another room).
This function is particularly useful when, for instance, the engineer
wishes to avoid forcing all performers in the recording room to wear
headphones. Also advertising narrators are not often happy wearing
headphones. Routing through the Talk Out circuit, the engineer can
communicate directly to narrators or musicians over an active monitor
placed in the recording room.
Headphone output
This is
where your headphone can be connected for monitoring the control room
mix—in parallel to the chosen loudspeaker monitor pair. The Headphone
output can be toggled in or out with the HP On switch, so muting is
possible without having to detach it each time.
The MTC 2381 can
manage up to six stereo input sources and up to three stereo speaker
pairs (connection via XLR connectors from Neutrik).
The inputs are
divided as follows:
- Musician
input (balanced jacks)
- Mix
input (balanced jacks)
- 2-Track
A to D (2 x bal. jacks, 2 x unbal. jacks)
Rear view
Detailed rear view
Wiring diagram
Detailed view wiring diagram
Specifications
Frequency Range:
10 Hz - 100 kHz (+/- 3 dB)
Input
Impedance
balanced
via Sub-D: 50 kOhm
unbalanced
via RCA: › 10 kOhm
Output
Impedance
balanced
via RCA: ‹600 Ohm
THD + N:
0,006 %
Noise
(A-weighted): › 80 dBu
Overload
Resistance: +22 dBu
Dynamic
Range: 110 dB
CMRR: › 70
dBu
Phase:
-20°@20 kHz
Crosstalk
L-R: › -70 dB@1 kHz/0 dBu
Dimensions: H x B x T (mm): 91 x 272 x 220
Weight 2,3
kg
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