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Sound Masking System Smart SMS
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Technical Features
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SmartSMS II

Soft dB’s smartSMS II-AMP is a DSP-based system that provides unique adjustment functions and ensures the generation of optimum masking sound regardless of the characteristics of the room.


The smartSMS II-AMP is available in 1, 2, 4 or 8 channel versions, and integrates the controller, noise generators, equalizers and 25-volt amplifiers. It combines sound masking, music diffusion and paging systems, all integrated in one convenient rackmount package.


Features:
  • Fully adjustable output channels, e.g. 1/3 octave equalizers (± 0.1 dB adjustment)
  • Auxiliary inputs for music or paging, 1/3 octave band equalizer on each output
  • Up to 8 SMS-AMP units can be networked with a USB if more than 8 channels are needed
  • Inputs for active sound level sensors
  • Programmable phase-in timer (up to 2 months)
  • Volume control knob allows easy volume adjustments
  • The DSP processor is controlled from a PC connected through a USB port
  • Includes a UL and FCC certified 110-240VAC - 25 VDC external power supply
  • Optional internal clock for calendar function allows time-based automatic adjustments

Applications:


The SMS-AMP Sound Masking System only requires being connected to 25-volt speakers to generate masking sound. All the sound generators, equalizers, mixers and amplifiers are included in one simple rackmount unit.


Specifications:

SMS-AMP Version
Output
Channel
Auxiliary
Input
Active
Input
Power
per
Channel
Maximum speakers
per channel
Maximum speakers
per unit
paging
no paging
paging
no paging
SMS-AMP-1
1
1
1
20 W
16
32
16
32
SMS-AMP-2
2
2
2
40 W
32
64
64
128
SMS-AMP-4
4
2
4
40 W
32
64
120
240
SMS-AMP-8
8
4
8
40 W
32
64
120
240


AC Input: 100-240 V, 50-60 Hz
Power consumption: Maximum: 7.5 A, Typical: < 1 A
Frequency response: 100-10,000 Hz
Distortion: less than 1%
Auxiliary input impedance: 80 kOhms
Auxiliary input maximum voltage: ±10 V
Active input impedance: 80 kOhms
Active input maximum voltage: ±2 V


Dimensions and Weight

Model
SMS Size (in.)
(WxHxD)
Shipping Size (in.)
(WxHxD)
SMS Weight
(lbs)
Shipping Weight
(lbs)
SMS-AMP-1
17 x 3 7/8 x 10 3/4
22 x 9 x 15
11
17
SMS-AMP-2
17 x 3 7/8 x 10 3/4
22 x 9 x 15
14.3
20
SMS-AMP-4
17 x 3 7/8 x 10 3/4
22 x 9 x 15
18.3
24
SMS-AMP-8
17 x 3 7/8 x 16 1/8
22 x 9 x 19
31.9
37


SMART SMS-II SOFTWARE

The Smart SMS Software performs Automatic-Equalization (patent pending) and real-time frequency analysis of the sound masking.

Note that the software can be used with many Smart SMS units connected together.

  • Automatic or manual adjustment of the masking spectrum for each channel
  • Built-in frequency analyzer in 1/3 octave and narrow bands
  • Real-time display of the masking spectrum in the room
  • Rising time adjustment of sound masking (from 1 second to 6 months)
  • Function for saving measurements and parameters for reports, follow-ups or modifications
  • Internet access to the system to change the setup



SMART SMS-II SPEAKERS

SMS-25V speakers provide full-range HI-FI speakers in a custom-made high quality casing.

  • Each speaker is tested during production to ensure a consistent frequency response between units.

  • In modern offices, without suspended ceilings or with particular installations, the speakers are available in different colors or with custom-made attachments for an additional charge.
 


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