The C 28:4 is one of two mid-power 4-channel amplifiers in the C Series family providing 4 x 700 W output into 4 ohms loads, packaged in a 2U chassis.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. VPL works in combination with adjustable input gain to achieve maximum headroom regardless of input levels or output impedances.Every C Series is ready for the NomadLink® network right out of the box. With NomadLink®, key amplifier parameters are displayed via DeviceControl PC software, and remote control of channel mutes and power on/off is under network control.
Unprecedented power density
Four Channels
Lo-Z or Hi-Z (70V/100V)
Patented Class TD amplifier topology
Voltage Peak Limiter (VPL)
Phoenix-type input connectors
Screw terminal output connectors
Comprehensive protection and warning
Efficient and uniform Intercooler® cooling
NomadLink® network ready
Amplifier Signal Type - Audio
Amplifier Type - Power Amplifier
Spec Sheet available - Yes
Maximum Frequency Response (Bandwidth):
20 kHz
Maximum Frequency Response (Bandwidth):
20000 Hz
Minimum Frequency Response (Bandwidth):
20 Hz
Minimum Frequency Response (Bandwidth):
0.02 kHz
Impedance:
20000 ohm
Number of Channels:
4
Number of Watts Per Channel:
700 Watt
Power Handling:
2800 Watt
Rack Units (Height):
2
Sensitivity:
112 dB
Total Harmonic Distortion + Noise (THD+N):
0.10 %
AC Voltage:
265 Volts
Current Draw:
5 Amps
Depth:
343 mm
Height:
88 mm
Width:
483 mm
Product Weight:
12 kg
THD at 1 kHz and 1 dB below clipping:
<0.05%
Channel separation (Crosstalk) at 1 kHz:
>70 dB
Frequency response (1 W into 8 ohms) +0/-3 dB:
6.8 Hz - 34 kHz
Input Common Mode Rejection, CMR:
50 dB
Output impedance @ 100 Hz:
30 mOhm
VPL, selectable per ch. 3):
141, 118, 100, 85, 71, 59, 50, 42 V
VPL, when bridged 3) 1):
282, 236, 200, 170, 142, 118, 100, 84 V
Voltage Peak Limiter mode (per ch.):
Hard / Soft
Amplifier gain selectable (all channels):
23, 26, 29, 32, 35, 38, 41, 44 dB
Default gain:
35 dB
Level adjustment (per ch.):
Front-panel potentiometer, 21 position detented from -inf to 0 dB, hidden behind security panel/dust filter grille