SPL SMC 7.1 Surround Controller

SKU: SMC 7.1 Surround Controller

Surround Monitor Controller * Please specify black or silver *


About this item



SPL SMC 7.1 Surround Controller

The SMC 7.1 expands analog surround monitoring to 8 channels and offers Solo, Solo-In-Place, and Solo-To-Center as well as a headphone jack.

Inputs & Speaker Management

Two 7.1 and two stereo input sources can be connected to the SMC 7.1. This is important because,x in monitoring, two productions are always compared.

A subwoofer can be added to a stereo input by activating the LFE button.

Each loudspeaker can be switched on and off individually, and the SMC 7.1 remembers the last speakers used for each source.

The Solo-In-Place function now turns the loudspeaker on/off switches into solo buttons. This allows each loudspeaker to be heard alone in its position.

Solo-To-Center places the selected loudspeaker on the center speaker so that it can be listened to precisely from the front in case critical listening is required.

An alternative output is available for connecting a pair of stereo loudspeakers.

The 45mm all-aluminum rotary knob moves an 8-level potentiometer.

Mute is especially important when the DAW sends full-range audio garbage due to a problem. Mute can be used quickly to protect speakers and hearing.

As an alternative to the speakers, headphones can be used for monitoring. The headphones can be switched on and have their own volume control.

Expansion Rack

The SMC 7.1 can be installed in the Expansion Rack to be screwed into a 19-inch rack.

The Expansion Rack is equipped with a switch that can passively route the stereo output signal of the SMC 7.1 to four stereo outputs.

In this combination, the SMC 7.1 is expanded by three additional stereo outputs.

This allows a 7.1 loudspeaker array and full-range, mid and nearfield stereo speakers to be controlled and monitored.


Analog inputs & outputs; XLR & DB25 (balanced)

Maximum input
22 dBu
Input impedance
20 kΩ
Output impedance
100 Ω
Frequency range (-3 dB)
10 Hz – 150 kHz
THD +N (10 Hz – 22 kHz, 0 dBu)
0.001 %
Noise (A-weighted)
-93 dBu
Crosstalk (1 kHz)
-92 dB
Common mode rejection (1 kHz)
82 dB
Dynamic range
115 dB

Standard Headphones Output, 6.35 mm (1/4″) TRS Jack

Tip = Left, Ring = Right, Sleeve = GND
Frequency range (-3dB)
10 Hz – 80 kHz
Crosstalk (1 kHz)
-70 dBu
Total harmonic distortion (0 dBu, 1 kHz, 40 kΩ load)
0.001 %
Noise (A-weighted)
-93 dBu
Dynamic range
115 dB

Internal Linear Power Supply with Toroidal Transformer

Operating voltage for analog audio
+/- 18 V
Operating voltage for relays and LEDs
+12 V

Mains Power Supply

Mains voltage (selectable, see fuse chamber)
230 V AC / 50; 115 V AC / 60 Hz
Sicherung für 230 V
T 500 mA
Sicherung für 115 V
T 1 A
Power consumption
max. 30 W

Maße & Gewicht

W x H x D (width x height x depth)
278 x 100 x 330 mm
11 x 4 x 13 inch
Unit weight
4.1 kg
9.04 lbs
Shipping weight (incl. packaging)
5.4 kg
11.9 lbs

Reference: 0 dBu = 0,775V. All specifications are subject to change without notice.

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