输入
| 幻像电源 |
48 V |
| 模拟输入增益 |
0 - 30 dB |
| 最大输入振幅 |
+19 dB |
| 输入噪声等效 |
<-124 dB |
| 麦克风/线路开 关增益 |
33 dB |
| 输入阻抗 |
10000 Ω |
端口 & 界面
| 并口数量 |
2 |
| EF Bus出 |
1 |
| 调制解调器 (RJ-11)接口 |
2 |
| EF Bus入 |
1 |
| 音响的连接 |
2x 3.5mm |
技术细节
| 平均等待时间 |
13 ms |
| 会聚 |
40 dB/s |
| 取消跨度 |
270 ms |
| 频率范围 |
20 - 20000 Hz |
| 回声消除 |
40 dB |
能量控制
| 输出电流 |
20 mA |
| 接受频率 |
47/63 Hz |
| 输出功率 |
10 W |
| 输入电压 |
110 - 240 V |
输出
| 输出增益 |
-100 - 20 dB |
| 最大输出振幅 |
+23 dB |
| 输出阻抗 |
33 Ω |
电话
| 电话输入增益 |
-100 - 20 dB |
| 接起电话回路电 流 |
16 - 120 mA |
| 电话输出增益 |
-100 - 20 dB |
| 电话的频率响应 |
250 - 3300 Hz |
| 电话的动态范围 |
>70 dB |
扩音器
| 信号-噪声比(信噪比) |
90 dB |
| 阻抗 |
16 Ω |
另外
| 输出电源 |
8 Ohm, >10W, 20-20000 Hz, + 0.2/- 0.5 dB |
| RS-232接口 |
1 |
Integrates with Polycom SoundStation VTX 1000 conference phones and Polycom VSX 7000 and Polycom VSX 8000 series video conferencing units
- Four microphone/line level inputs (phantom power available for each input
- Individual channel acoustic echo cancellation
- Third-generation DSP noise cancellation algorithms (patent pending) remove ambient background noise prior to mixing which results in a much cleaner audio feed
- Typically installed in smaller rooms that require audio conferencing
- Polycom Vortex EF2241 Automatic Mic / Matrix Mixer with Phone Hybrid and Power Amp
Features and Benefits
- Offers four microphone/line inputs, four line inputs, eight line outputs
- Integrated phone add and 10-watt power amplifier
- Offers full-bandwidth performance
- Fastest acoustic echo cancellation performance available
- Multiple units can be linked or can work in conjunction with Polycom Vortex units
- Can be programmed from the front panel or by using included Conference Composer software
Solutions
All Vortex products integrate with the Polycom SoundStation VTX 1000 and Polycom VSX series video conferencing units, such as the Polycom VSX 8000 system, for premium quality voice and video conferencing.
