D series lightbox

D-75A (停产)

 双通道、55W 功放

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特点
性能

D-45 与 D-75A 是诸如录音或广播工作室近场监听、视频套件音频监听、录音/广播耳机功放或小型寻呼系统等中等功率应用的完美之选。

Crown D 系列功放经过精心设计、制造以及详尽的检查,可保证在各种负载下可靠运行,同时还配置了对流冷却, 其高可靠性在降低维护成本方面尤为重要。

有关产品存货情况和价格,请联系当地的经销商。

Recommended for: 商用.

这款双通道(立体声)功放支持配置为从单个通道(单通道)提供双倍功率。 此外还可提供以下功能:

•强大的 AB+B 类电路可产生最大效率与最低分频“陷波”失真。

•IOC®(输入/输出比较仪)会对任何超过 0.05% 的失真发出警报,以保证零失真性能。

•信号检测指示灯可检测是否有功放输出。

•旋钮式电平可进行精确的重复控制。

•超低的谐波与互调失真可产生业内最佳的动态传递函数。

•极低的噪声与超宽的动态范围。

•高阻尼因数可提供卓越的扬声器运动控制。

•对流冷却系统消除了风扇噪音,也无需进行维护。

•支持安装在标准的 19-inch (48.3-cm) 机架上。

•前面板提供耳机插孔。

•支持三年无障碍可完全转让质保,全面保护您的投资,保证产品始终符合规格。

频率响应

+/- 0.1 dB from 20 Hz to 20 kHz at 1 watt
Phase Response +10 to -15 degrees from 20 Hz to 20 kHz at 1 watt
针对噪音的信号 106 dB from 20 Hz to 20 kHz at full bandwidth FTC power

总谐波失真

Less than 0.001% at full bandwidth FTC power from 20 Hz to 400 Hz increasing linearly to 0.05% at 20 kHz
Intermodulation Distortion (60 Hz and 7 kHz 4:1) Less than 0.01% from 0.25 watts to full bandwidth FTC power, and less than 0.05% from 0.01 to 0.25 watts
Crosstalk Greater than 100 dB below full bandwidth FTC power from 100 Hz to 1 kHz decreasing linearly to 80 dB at 20 kHz
Damping Factor Greater than 400 from DC to 400 Hz
Controlled Slew Rate 6 volts per ms. (Slew rates are limited to useful levels for ultrasonic/RF protection)
Voltage Gain At maximum level setting, 8-ohm load, 0.775V input sensitivity

负载阻抗

Safe with all types of loads. Rated for 4 to 16 ohms in dual mode, and 8 to 16 ohms in bridge-mono mode
AC Line Voltage and Frequency Configurations Available 100, 120, 220 and 240 VAC (+/-10%), 50 to 400 Hz for international units (depending on the transformer configuration). North American 120VAC, 60 Hz units are not convertible and con only be used at the specified voltage and frequency. All units draw 15 wa
D series medium