Specifications：                                                                                                                          

* Dynamic range: 130dB

* Signal to noise: 119dB@100Hz

* Maximum input: 10V

* Frequency range: 10Hz to 40kHz

* Linearity 20Hz to 20kHz: 0.1dB

* Phase coherence:

* 10 degrees at 20 Hz

* 0 degrees at 1kHz

* Distortion at 20Hz: < 0.5%

* Input impedance: 220k ohms

* Output impedance: 600 ohms

* Construction: Welded steel

* Input connectors: Two 1/4 in. phone

* Output connectors: XLR male