| Model |
C Series 68:4 |
| General |
| Number of amplifier channels |
4 |
| Peak total output all channels driven |
6800 W |
| Peak output voltage per channel |
141 V |
| Max output current per channel |
24.5 Arms |
| Max output power (all channels driven) |
| 16 ohms |
650 W |
| 8 ohms |
1200 W |
| 4 ohms |
1700 W |
| 2 ohms |
1200 W |
| Hi-Z per ch. (all ch.’s driven): 70 Vrms / 100 V peak |
1600 W |
| Max output power bridged |
| 16 ohms |
2400 W |
| 8 ohms |
3400 W |
| 4 ohms |
2400 W |
| 2 ohms |
Not recommended 1 |
| Bridged per ch.: 140 Vrms / 200 V peak |
3200 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: 20 A / NEMA 5-20P; C16:4: 15A/NEMA 5-15P |
| Dimensions |
| Dimensions |
W: 483 mm (19”), H: 88 mm (2 U), D: 343 mm (13.5”) |
| Weight |
| Weight |
12 kg (26.4 lbs) |
| Finish |
| Finish |
Black painted steel chassis with gray painted steel front |
| Approvals |
| Approvals |
CE, ANSI/UL 60065 (ETL), CSA C22.2 NO. 60065, FCC |
