CROWN 280A เพาเวอร์แอมป์ลายน์ 70V/100V 2 ชาแนล 2×80 วัตต์ CROWN 280A เพาเวอร์แอมป์ ยี่ห้อ CROWN
CROWN 280A
80W Power Amplifier for Two-Zone Systems
The Crown 180A, 280A, 1160A and 660A are high-value amplifiers for commercial and industrial audio. They provide 4-ohm and constant-voltage outputs (70V and 100V). The 660A, a six-channel amplifier, provides 4-ohm and constant-voltage outputs (70V and 100V) on channels 1 through 4, and 4-ohm outpus on channels 5 and 6. The amps are part of Crown’s Commercial Audio Series, which also includes mixers and mixer-amps. These low-cost units provide all necessary features in a simple building-block format. The sound system can be upgraded as a facility expands. For example, you can add more mixers for more inputs, or add more power amps (or mixer-amps) to handle more zones
คุณสมบัติ
- 180A, 280A and 1160A have 1 or 2 inputs, 1 or 2 amplifier output channels.
- Ideal for commercial and industrial use
- Balanced Phoenix-type line inputs; touch-proofed screw-terminal speaker outputs
- Advanced protection system includes output current limiting, DC protection, circuit breaker/fuse, and thermal protection
- Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment and guarantees its specifications
สเปค
| Frequency Response | (at 1 watt from 4-ohm tap): 70 Hz to 19 kHz +/-1 dB, (at line out): 20 Hz to 20 kHz +/- 1 dB |
| Power Bandwidth | (at 4-ohm tap, 2 dB below maximum 1 kHz power): 50 Hz to 20 kHz with < 0.5% THD |
| Signal to Noise Ratio | (ref. to rated power, master volume at minimum): 85 dB |
| DC Output Offset | < +/-5 mV |
| THD | Less than 0.5% at rated power at 1 kHz |
| Input Sensitivity | (for full output at miximum gain): 800 mV |
| Input Impedance (nominal) | 100 kilohms |
| Minimum Load Impedance | 100V ouput: 160 ohms, 70V output: 80 ohms, 4-ohm output: 4/8 ohms |
| Crosstalk (all controls at “10”) | -70 dB at 1 kHz |
| Line Output Level (nominal) | 1V into 10 kilohms |
| AC Line Voltages Available | 100V 50/60 Hz, 120V 60Hz, 220V 50/60 Hz, 230V 50/60 Hz, 240V 50/60 Hz |
| Operating Temperature/Humidity | 0 degrees C to 40 degrees C at 95% relative humidity (non-condensing) |
| Storage Temperature | -20 degrees C to 85 degrees C |
