| 麦克风前置放大器连接器 |
Female XLR Pin 2 Hot; Electronically balanced/unbalanced |
| 麦克风前置放大器输入的阻抗 |
1.9 kΩ |
| 共模 |
>85 dB from 20 Hz to 3 kHz, >70 dB from 3 kHz to 20 kHz |
| 乐器输入连接器 |
Tip-Sleeve ¼” Jack |
| 输入的类型 |
(instrument) Unbalanced |
| 乐器输入阻抗 |
500 k Ω |
最大输入 |
(instrument) +21dBu unbalanced |
| 前置功放插入连接器 |
Tip-Ring-Sleeve ¼”, RF filtered |
| 前置功放插入类型 |
Unbalanced, Tip = send, Ring = return |
| 线路输出(前置功放和压缩器/限幅器)连接器 |
Male XLR and Tip-Ring-Sleeve ¼” (Pin 2 and Tip hot) |
| 线路输出(前置功放和压缩器/限幅器)类型 |
Servo-balanced/unbalanced |
| 线路输出(前置功放和压缩器/限幅器)阻抗 |
Balanced 30 Ω, unbalanced 15 Ω |
| 线路输出(前置功放和压缩器/限幅器)最大输出电平 |
> +21 dBm (into a 600 ohm load) |
| 压缩器边链插入连接器 |
Tip-Ring-Sleeve ¼”, RF filtered |
| 压缩器边链插入类型 |
Unbalanced, Ring = output, Tip = input |
| 压缩器边链插入阻抗 |
1 kΩ (output), 50 kΩ (input) |
| 真空管式 |
12AU7A / ECC82 |
| 真空管栅极电源 |
+250V DC |
| 真空管加热器电源 |
+12V DC |
| 频率响应(麦克风输入) |
20 Hz to 50 kHz, +0/-1dB, 40 dB gain |
| 频率响应(乐器输入) |
30 Hz to 70 kHz, +0/-1dB, unity gain |
| THD + 噪声(麦克风输入到线路输出) |
0.25% typical at 0 dBu out, 1 kHz, 40 dB gain |
| THD + 噪声(乐器输入到线路输出) |
0.2% typical at 0 dBu out, 1kHz, unity gain |
| 等效噪声电平 |
Typically > -123 dBu with a 150 Ω source load, 22 Hz to 22 kHz |
| 噪声层 |
Mic Insert to Comp Output: <-93 dBu, unity gain, EQ flat and no gain reduction |
| 前置功放功能开关/控件:乐器输入 |
Selects between microphone XLR input and front panel ¼” instrument input |
| 前置功放功能开关/控件:+48V |
Sends +48 VDC through 6.81 kΩ resistors to pins 2 and 3 of the microphone input |
| 前置功放功能开关/控件:20dB 衰减器 |
Attenuates the microphone input by 20 dB |
| 前置功放功能开关/控件:极性反转 |
Reverses pins 2 and 3 of the microphone input XLR |
| 前置功放功能开关/控件:80 Hz 低频切除 |
Enables an 80 Hz, 12 dB/octave high pass filter in the microphone and instrument signal path |
| 前置功放功能开关/控件:增益控制范围 |
-∞ to +55 dB for Microphone Input; -∞ to +40 dB for Instrument Input |
| 前置功放功能开关/控件:后置管衰减 |
-∞ to 0 dB |
| 前置功放功能开关/控件:峰值指示灯 |
Illuminates RED when the Preamp is within 3 dB of clipping |
| EQ 低频 |
100 Hz, Low-pass shelving filter |
| EQ 高频 |
10 kHz, High-pass shelving filter |
| EQ 中频 |
Sweepable from 100 Hz to 8 kHz |
| EQ 功能开关/控件:窄 |
Selects the “Q” of the MID Frequency EQ. “OUT” position Q = 0.9; “IN” position Q = 2.9 |
| EQ 增益 |
(All Bands) Sweepable from –15 to +15 dB |
| 压缩机的阈值范围 |
-40 dBu to +20 dBu |
| 压缩机阈值特性 |
Selectable OverEasy™ or Hard Knee |
| 压缩机比率 |
Variable 1:1 to ∞:1; 60 dB maximum Compression |
| 压缩机攻击/释放模式 |
Selectable Manual or Auto |
| 压缩机手动攻击时间 |
Scalable program-dependent; Typically 400 dB/msec to 1 dB/msec |
| 压缩机手动发布时间 |
Scalable program-dependent; Typically 4000 dB/sec to 10 dB/sec |
| 压缩机自动攻击时间 |
Program-dependent, typically 15 ms for 10 dB, 5 ms for 20 dB, 3 ms for 30 dB |
| 压缩机自动发布时间 |
Program-dependent, typically 120 dB/sec |
| Compressor Output Level Control Range |
-20 dB to +20 dB |
| Compressor Peak Indicator |
Illuminates RED when the Compressor/Limiter is within 3 dB of clipping |
| 限流器类型 |
dbx PeakPlus™ |
| 力矩限制器的阈值范围 |
-4 dBu to + 22 dBu (off) |
| 力矩限制器的比例 |
∞:1 |
| 限幅器启动和释放 |
Program-dependent |
电源 |
Universal switch-mode |
| 工作电压 |
100 – 240 VAC, 50/60 Hz |
| 电源要求 |
20 Watts |
| 保险丝 |
T2.5AL 250V |
| 打开时间 |
Approximately 2 seconds |
尺寸 |
3.5”H X 19”W X 8”D (88.9mmH X 482.6mmW X 203.2mmD) |
| 重量 |
8.1 lbs (3.7 kg) |
运输重量 |
11.0 lbs (5.0 kg) |