เครื่องขยายเสียง LAB GRUPPEN C20:8X Power Amplifier
แอมป์ขยายเสียง LAB GRUPPEN C20:8X, เป็นเพาเวอร์แอมป์แบบ 8 ชาแนล มีกำลังขับ 8×250 วัตต์ per channel at 70 V, 4 ohms, 8 ohms, and 16 ohms, All channels individually selectable for lo-Z or hi-Z Loudspeakers 2 ohm-16 ohm, NomadLink® network ready
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฿121,000.00 ฿108,900.00
Description
LAB GRUPPEN C20:8X C Series 8-Channel Amplifier (8x250W)
แอมป์ขยายเสียง LAB GRUPPEN C20:8X, เป็นเพาเวอร์แอมป์แบบ 8 ชาแนล มีกำลังขับ 8×250 วัตต์ per channel at 70 V, 4 ohms, 8 ohms, and 16 ohms, All channels individually selectable for lo-Z or hi-Z Loudspeakers 2 ohm-16 ohm, NomadLink® network ready
The C 20:8X is the most powerful eight-channel amplifier in the C Series family, delivering an impressive 8 × 250 W* at 4 ohms, 8 ohms, 16 ohms or 70 Vrms; 500 W at 100 Vrms is available in bridge mode.
The C 20:8X is one of four C…X models in the C Series, each uniquely suited for a range of installed applications with relatively lower power output requirements. C…X models share most features of the original (higher power) C Series models, and they share the same compact, lightweight 2U chassis. However, the C…X models are offered in both four- and eight-channel versions, offering even greater channel density and installation flexibility. Also, because the unique benefits of Class TD® are more applicable at higher power levels, the C…X models employ a cost-efficient proprietary Class D output design. Other features unique to C…X models include a universal power supply, selectable 35 Hz high-pass filter, and built-in GPIO control facilities.
C 20:8X 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 70 V loudspeakers (100 V in bridge mode). VPL works in combination with adjustable input gain (adjustable in 4-channel blocks) to achieve maximum headroom regardless of input levels or output impedances. Additionally a 35 Hz high pass filter may be inserted in each 4-channel section.
Every C Series amplifier 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.
GPIO facilities – provided exclusively on C…X models – allow access to key amplifier functions such as power on/off and fault reporting.
* Maximum continuous output power, all 8 channels driven, VPL set at 100 V and Gain set at 32 dB.
Features:
- Eight channels in 2U – Extremely high channel density reduces space requirements and installation time
- High continuous output power of 250 W per channel at 70 V, 4 ohms, 8 ohms, and 16 ohms*
- All channels individually selectable for lo-Z or hi-Z Loudspeakers (2 ohm – 16 ohm) and distributed systems can be connected to the same unit
- Bridged operation – Channel pairs bridgeable for increased output or for driving 100 V systems
- Patented output stage based on Class D topology
- High efficiency for lower thermal stress
- General Purpose Input/Output (GPIO) – Compatible with third-party control systems
- NomadLink® network ready
- Universal Power Factor Corrected PSU with IEC inlet
- Efficient cooling – Dual variable speed, intelligent fans and parallel airflow over output devices provide uniform cooling
- Comprehensive circuit protection and fault indication
- Phoenix-style input connectors and barrier strip output connectors
Specifications
| General | |
| Number of amplifier channels | 8 |
| Peak total output all channels driven | 2000 W |
| Peak output voltage per channel | 100 V |
| Max output current per channel | 8 Arms |
| Max output power (all channels driven) | |
| 16 ohms | 250 W |
| 8 ohms | 250 W |
| 4 ohms | 250 W |
| 2 ohms | 125 W |
| Hi-Z per ch. (all ch.’s driven): 70 Vrms / 100 V peak | 250 W |
| Max output power bridged | |
| 16 ohms | 500 W |
| 8 ohms | 500 W |
| 4 ohms | 250 W |
| 2 ohms | Not recommended 1 |
| Bridged per ch.: 140 Vrms / 200 V peak | 500 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 | 48 mOhm |
| Gain, Sensitivity and Limiters | |
| VPL, selectable per ch 2 | 100, 63, 45, 32 V |
| VPL, when bridged 2 3 | 200, 126, 90, 64 V |
| Voltage Peak Limiter mode (per ch.) | Hard / Soft |
| Amplifier gain selectable (all channels) – rear-panel switches 3 | 29, 32, 35, 38 dB |
| Default gain | 32 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, C+D, E+F, G+H, inputs A, C, E, G are signal source |
| High pass filter | Fixed at 35 Hz, switchable per channel |
| 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 |
| General Purpose Outputs (GPO) | Contact Closure types, 2-pole Phoenix |
| General Purpose Inputs (GPI) | Contact Closure types, 2-pole Phoenix |
| Front-panel user interface | |
| Common | NomadLink Network; Power Average Limiter (PAL)4; Power on |
| Per channel | Signal present / High-impedance; Voltage Peak Limiter (VPL); Current Peak Limiter (CPL): Very High Frequency (VHF); High temperature; Fault; Mute |
| Power | |
| Operating voltage, 230 V / 115 V nominal | Universal power supply 65-265 V |
| Minimum power-up voltage, 230 V / 115 V | 80 V |
| Power Average Limiter (PAL) 4 | Yes |
| Power Factor Correction (PFC) | Yes |
| Soft-start / Inrush Current Draw | Yes / max. 5 A |
| Mains connector | IEC inlet |
| Dimensions | |
| Dimensions | W: 483 mm (19”), H: 88 mm (2 U), D: 343 mm (13.5”) |
| Weight | |
| Weight | 8.5 kg (18.75 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 |
Note:
- 1: Regarding n.r. (not recommended) notes: The amplifier will be fully operational in bridge-mode into 2 ohm and high impedance (Hi-Z) loads, but due to physical constraints in the construction, the max. output power will not be significantly higher than running individual channels and therefore this mode of operation is not recommended.
- 2: For sine waves, peak voltage output values translate to Vrms with the formula V/1.41 = Vrms. E.g. 100 V peak equals app. 70 Vrms. Hence, outputs can be set for high-impedance loads without requiring a transformer.
- 3: Automatic -6 dB gain compensation when bridging channels. Ch.’s A+B and/or C+D, can be bridged individually.
- 4: PAL can reduce the maximum output power to keep the power supply operating safely, and/or to prevent excessive current draw tripping the mains breaker. Refer to Operation Manual.
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