Lab Gruppen C 28:4 700W 4 Channel Power Amplifier
Usually arrives in 5-9 business days.
The Lab.gruppen C 48:4 is the third largest amplifier in the C Series family, delivering an impressive 4 × 1200W at 4 ohms. The exceptional power output plus a long list of protection and monitoring features are all packed into a 2U chassis.
The C 48:4 is the third largest amplifier in the C Series family, delivering an impressive 4 × 1200W at 4 ohms. The exceptional power output plus a long list of protection and monitoring features are all packed into 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 100/70V 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 software, and remote control of channel mutes and power on/off is under network control.
| General | |
|---|---|
| Number of Channels | 4 |
| Peak Total Output all Channels Driven | 4800W |
| Peak Output Voltage Per Channel | 141V |
| Max. Output Current per Channel | 17.5 Arms |
| Max. Output Power | |
| 16 ohms | Per ch. (all ch.’s driven): 625W; Bridged per ch. :2000W |
| 8 ohms | Per ch. (all ch.’s driven): 1000W; Bridged per ch. :2400W |
| 4 ohms | Per ch. (all ch.’s driven): 1200W; Bridged per ch. :1200W |
| 2 ohms | Per ch. (all ch.’s driven): 600W |
| Hi-Z | Per ch.: 900W (70V rms / 100V peak); Bridged per ch. :1800W (140 Vrms / 200V peak) |
| Performance with Gain: 35 dB and VPL: 100V | |
| THD 20 Hz - 20 kHz for 1W | |
| THD at 1 kHz and 1 dB Below Clipping | |
| Signal To Noise Ratio | >112 dBA |
| Channel Separation (Crosstalk) at 1 kHz | >70 dB |
| Frequency Response (1W into 8 ohms) +0/-3 dB | 6.8 Hz - 34.2 kHz |
| Input Impedance | 20k Ohm |
| Input Common Mode Rejection, CMR | 50 dB |
| Output Impedance @ 100 Hz | 30m Ohm |
| Voltage Peak Limiter (VPL), Max. Peak Output | |
| VPL, Selectable per Ch. | 141, 118, 100, 85, 71, 59, 50, 42V |
| VPL, when Bridged | 282, 236, 200, 170, 142, 118, 100, 84V |
| Voltage Peak Limiter Mode (per Ch.) | Hard / Soft |
| Gain and Level | |
| Amplifier Gain Selectable (all channels) – Rear-Panel Switches | 23, 26, 29, 32, 35, 38, 41, 44 dB |
| Default Gain | 35 dB |
| Connectors and Switches | |
| 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 |
| Intelligent Fans (on/off) | Yes, depending on presence of output signal |
| Power on/off and Remote Enable on/off | Individual switches on front-panel |
| Cooling | Two fans, front-to-rear airflow, temperature controlled speed |
| Power | |
| Operating Voltage, 23V / 115V Nominal | 130 -265 / 65-135V |
| Minimum Power-Up Voltage, 230V / 115V | 171V / 85V |
| Power Average Limiter (PAL) | Yes |
| Soft Start / Inrush Current Draw | Yes / max. 5 A |
| Mains Connector | 230V CE: 16 A, CEE7; 115V ETL: 20 A / NEMA 5-20P |
| Finish | Black painted steel chassis with gray painted steel front |
| Dimensions (H x W x D) | 1.75" (88 mm) X 19" (483 mm) X 13.5" (343 mm) |
| Weight | 26.4 lbs (12 kg) |
Model #:
Usually arrives in 5-9 business days.
Model #:
Usually arrives in 5-9 business days.
Model #:
Usually arrives in 5-9 business days.
Model #:
Usually arrives in 5-9 business days.
Model #:
Usually arrives in 5-9 business days.