Visual Sound D-SH1 音频放大器和前置放大器

RDL, Radio Design Labs","The D\/DS SH1 is used in applications requiring headphones of any impedance to be driven from consumer or professional audio sources. The D\/DS-SH1 is ideally suited to applications as diverse as language translation, museums, interview studios and music stores. The module mounts conveniently in a precut opening in a wood or metal enclosure or in various RDL mounting accessories. The D\/DS SH1 is a dual channel headphone amplifier with balanced\/unbalanced left and right inputs. Each input accepts operating levels between -20 dBV and +20 dBu. Two recessed slide switches located on the side of the rear enclosure are set prior to mounting the module. One switch is provided for setting the input sensitivity. The mode switch selects between stereo and mono operation. In the mono position, the left input is used to drive both output channels. When the module is used in a monaural system, only the left channel input must be wired. The front panel level control is a long life potentiometer controlling matched VCAs. Audio does not pass through this control, assuring years of noise free level adjustment. The output amplifiers deliver more than 50 mW into either high or low impedance headphones through a durable, metal ¼\" (6.3 mm) standard headphone jack. Module operation is from a 24 Vdc ground referenced power supply. It can also operate from a 12 Vdc supply with a 6 dB reduction in headroom and a maximum output power of 10 mW.

特性

• 面板式耳机放大器
• 壁挂式耳机放大器
• 积分长寿命vca立体声电平控制
• 平衡或不平衡输入
• 开关可选输入灵敏度
• 可选择单声道(左)或立体声操作
• 用于驱动高阻抗或低阻抗耳机的放大器
• Decora®安装的便利性
• Convenience of Decora® Mounting Possibilities