SPL Audio SMC 7.1 Surround Monitor Controller + Expansion Rack Black

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.

The SPL Expansion Rack is not only a 19” rack housing for the Phonitor 3, Phonitor 3 DAC and SMC7.1, it also expands the connection possibilities.

A passive four-way switch integrated into the Expansion Rack allows the speaker output signal to be switched between up to four stereo speaker pairs.

With the Expansion Rack, a desktop device, such as the Phonitor 3, can be installed in a 19-inch rack. All compatible devices are installed in the same way. Detailed, illustrated installation instructions can be downloaded a little further down on this product page.

The Expansion Rack is equipped with a rotary switch that passively routes the stereo output signal of a built-in device to four stereo outputs. Switching takes place passively, i.e. without active electronics in the signal path and without a power supply. Phonitor 3, Phonitor 3 DAC or SMC 7.1 are expanded with three additional stereo outputs together with the Expansion Rack so that for example full-range, midfield and nearfield monitors can be connected.

• Inputs & Speaker Management
Two 7.1 and two stereo input sources can be connected to the SMC 7.1. This is important because in monitoring, two productions are always compared with each other.

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 at its position.

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

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

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

Mute is especially important when the DAW is sending 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.

SMC 7.1:

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
• Wiring: 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

Dimensions & Weight
• 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

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EXPANSION RACK:

Passive 1 to 4 Splitter
• Input, 1x stereo: XLR (balanced)
• Outputs, 4x stereo: XLR (balanced)

Dimensions & Weight
• W x H x D (Width x Height x Depth): 482 x 88 x 303 mm
19 x 3.46 x 11.93 inch
• Weight: 2.7 kg
5.95 lbs