SM5120 series mixers-amplifiers

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Functional features:

Functional features:

Mixer –amplifier, power output 120 W, 5 inputs (4 inputs MIC/LINE; 1 input RCA). Device is intended for operation in 100-volt networks of small background sound systems. The main functionality of SM5120 is the option of connecting external power amplifiers through the symmetrical SLAVE output, and the signal can be taken as to the volume control and after (this is a separate PRE / POST switch). This function is relevant, if the mixer-amplifier is connected in parallel to several additional power amplifiers. It is very convenient to change the volume of the entire amplifier system using a single regulator for SM5120. The same unit is equipped with a comfortable set of additional features: switchable phantom power on all microphone inputs, switchable sound activated input 1 priority, regulated volume control Bim-Bom signal, the inclusion of an emergency input 1 priority with an external control signal (dry contacts). A complete set of equipment includes a fixture for its mounting in a rack and four rubber self-adhesive feets. 

The main technical characteristics

The main technical characteristics:

Parameter name

SM5120

SM5240

Output voltage rating, V min

50; 100

Output power, limited by distortions, W, min

120

240

Nominal impedance, Ohm:– output 50 V– output 100 V

 20,883

 10,441,7

Input impedance at INPUT 1–4, kOhm, min:

– MIC

– LINE

 

0,6

5

Input impedance at INPUT 5, kOhm, min:

 10

Minimal EMF of supply at INPUT 1–4, mV, max:

– MIC

– LINE

 

 1,5

100

Minimal EMF of supply at INPUT 5, mV, max:

200

Output impedance at MIXER OUTPUTS (LINE, SLAVE), Ohm, max

600

Output power MIXER OUTPUTS, V, min:

– LINE

– SLAVE

 

1

1,23 (+4dBu)

Minimum allowable load impedance on outputs MIXER OUTPUTS (LINE, SLAVE), kOhm

1

The limits of the tone control at the LF (100 Hz) and HF (10kHz), dB, min

±10

Effective frequency range limited of amplifying, Hz, not narrow

50 ... 16000

Frequency-response ripple of amplifying in the effective frequency range (at the middle position of tone control LF and HF), dB, max

3

Total harmonic distortions at the output of the frequency range in the nominal output power ,%, max

1

1,5

Signal/noise ratio in the nominal output power, dB, min

65

65

Phantom power supply voltage, V

15±10%

Protection degree

IP20

Total dimensions, mm, max

483х245х96

Weight, kg, max

5

Alternating-current power VA, max

240