LAB.GRUPPEN C 28:4 (C28:4) 2800 Watt 4 Channel Amplifier with NomadLink Network Monitoring and Dedicated Control for Install Applications
Price RM7,800.00
Product SKU C 28:4
Size (L x W x H) 53 cm x 37 cm x 10 cm
Availability In Stock
Shipping Fee
Malaysia Not Applicable
  • 2,800 Watt, 4-channel amplifier with up to 700 Watts output per channel and NomadLink network for monitoring and control

  • Selectable gain plus scalable Voltage Peak Limiter (VPL) and bridge-mode operation allow custom configuration for any application

  • 4 x 300 Watts into 2 Ohms, 4 x 700 Watts into 4 Ohms, 4 x 700 Watts into 8 Ohms, 4 x 600 Watts into 16 Ohms, 4 x 700 Watts into Hi-Z 70 V, 4 x 700 Watts into Hi-Z 100 V

  • Proven and reliable Class-TD output stage delivers Class-A/B audio quality with Class-D efficiency

  • Regulated Switch Mode Power Supply (R.SMPS) ensures constant power output at all times

  • Intuitive DeviceControl software monitors and controls key functions via the NomadLink network

  • Comprehensive protection scheme including current, voltage, DC, temperature, short circuit and open load warnings

  • Efficient Intercooler copper cooling system dissipates more heat for extended peak output

  • 4 x balanced analog audio inputs on 3-pin Phoenix* connectors

  • 4 x barrier strip 2-pole screw terminal output connectors

  • Removable dust filter grille for increased air circulation

  • Compact and durable 2U rackmount chassis saves space in install applications


The C 28:4 is one of two mid-power, four-channel amplifiers in the C Series family. Attractively packaged in a 2U chassis, it provides 4 × 700 W output into 4 ohm loads.

C Series amplifiers are uniquely capable of adapting to a wide variety of demanding load conditions. Each channel has an individually configurable Voltage Peak Limiter (VPL™), which allows the output to be optimized for any loudspeaker load – whether a single large subwoofer or a series of small 100/70 V loudspeakers. 




Number of amplifier channels: 4

Peak total output all channels driven: 2800 W

Peak output voltage per channel: 141 V

Max output current per channel: 12 Arms


Max output power (all channels driven)

16 ohms: 600 W

8 ohms: 700 W

4 ohms: 700 W

2 ohms: 300 W

Hi-Z per ch. (all ch.’s driven): 70 Vrms / 100 V peak: 700 W

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Power Amplifier x1