Description
The Sonifex CM-HPR1 passive headphone volume control allows you to connect a stereo balanced line input via RJ45 using the StudioHub+ pinout to create a headphone output with level control for any headphone over 150 ohms impedance. Transformer balanced at a ratio of 2:1 your ensured that any headphone load the unit is presented with is reflected to the input at a 1:4 ratio, suitably loaded for a good quality line output stages.SpecificationsInput/Output Level Ratio: 2:01Input/Output Impedance Ratio: 4:01Minimum Headphone Impedance: 150OMax Input Level: +28dBuMax Output Level: +22dBuFrequency Response: 20Hz to 20kHz, +0/-0.5dBNoise: