Features of the Lab Gruppen C 16:4 4-Channel Amplifier
- 1,600 Watt, 4-channel amplifier with up to 400 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 140 Watts into 2 Ohms, 4 x 300 Watts into 4 Ohms, 4 x 400 Watts into 8 Ohms, 4 x 400 Watts into 16 Ohms, 4 x 400 Watts into Hi-Z 70 V, 4 x 400 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 Device Control 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
Specifications
General
| Number of amplifier channels |
4 |
| Peak total output all channels driven |
1600 W |
| Peak output voltage per channel |
141 V |
| Max output current per channel |
8.5 Arms |
Max output power (all channels driven)
| 16 ohms |
400 W |
| 8 ohms |
400 W |
| 4 ohms |
300 W |
| 2 ohms |
140 W |
| Hi-Z per ch. (all ch.’s driven): 70 Vrms / 100 V peak |
400 W |
| Hi-Z per ch. (all ch.’s driven): 100 Vrms / 141 V peak |
400 W |
Max output power bridged
| 16 ohms |
800 W |
| 8 ohms |
600 W |
| 4 ohms |
Not recommended 1 |
| 2 ohms |
Not recommended 1 |
| Bridged per ch.: 140 Vrms / 200 V peak |
800 W |
Performance
| THD 20 Hz – 20 kHz at 1 W |
<0.1% |
| THD at 1 kHz and 1 dB below clipping |
<0.05% |
| Signal to Noise Ratio |
>112 dBA |
| Channel separation (Crosstalk) at 1 kHz |
>70 dB |
| Frequency response (1 W into 8 ohms) + 0 / -3 dB |
6.8 Hz – 34 kHz |
| Input impedance |
20 kOhm |
| Common Mode Rejection (CMR) |
>50 dB, 20 Hz – 20 kHz |
| Output impedance @ 100 Hz |
30 mOhm |
Gain, Sensitivity and Limiters
| VPL, selectable per ch 2 |
141, 118, 100, 85, 71, 59, 50, 42 V |
| VPL, when bridged 2 3 |
282, 236, 200, 170, 142, 118, 100, 84 V |
| Voltage Peak Limiter mode (per ch.) |
Hard / Soft |
| Amplifier gain selectable (all channels) – rear-panel switches 3 |
23, 26, 29, 32, 35, 38, 41, 44 dB |
| Default gain |
35 dB |
| Level adjustment (per channel) |
Front-panel potentiometer, 21 position detented from -inf to |
Connectors and Buttons
| Input connectors (per ch.) |
3-pin Phoenix, electronically balanced |
| Output connectors (per ch.) |
Barrier strip 2-pole screw terminals |
| Output bridge mode |
A+B and/or C+D, inputs A and C are input source |
| NomadLink network |
On board, 2 x RJ45 connectors IN and OUT |
| Intelligent fans (on/off) |
Yes, depending on presence of output signal |
| Power |
Individual switches on front panel |
| Cooling |
Two fans, front-rear airflow, temperature controlled speed |
Front-panel user interface
| Common |
NomadLink Network; Power Average Limiter (PAL)5; Power on |
| Per channel |
Signal present / High-impedance; -10 dB and -4 dB output signal;Voltage Peak Limiter (VPL); Current Peak Limiter (CPL): Very High Frequency (VHF); High temperature; Fault; Mute |
Power
| Operating voltage, 230 V / 115 V nominal |
130-265 V / 65 -135 V 4 |
| Minimum power-up voltage, 230 V / 115 V |
171 V / 85 V |
| Power Average Limiter (PAL) 5 |
Yes |
| Power Factor Correction (PFC) |
No |
| Soft-start / Inrush Current Draw |
Yes / max. 5 A |
| Mains connector |
230 V CE: 16 A, CEE7; 115 V ETL: 15 A / NEMA 5-15P |
Dimensions
| Dimensions |
W: 483 mm (19”), H: 88 mm (2 U), D: 343 mm (13.5”) |
Weight
Finish
| Finish |
Black painted steel chassis with gray painted steel front |
Approvals
| Approvals |
CE, ANSI/UL 60065 (ETL), CSA C22.2 NO. 60065, FCC |
Chris Black –
Great product