Whirlwind IMCOML Line Level Combiner

Line Level Combiner - 2 In, 1 Out This unit not only combines two line-level signals into one line level output, it also compensates for the 6dB of gain that occurs when two in-phase signals are combined. A handy ground-lift switch breaks the shield connection between the inputs. Use the line level combiner when you want to create a mono mix from a stereo source but need to keep the original stereo signals isolated. It's great for feeding a DAT player or CD into a mono system or single channel on a board. Connections are female XLRs in, male XLR out.Features: Use fewer input channels by combining two mic lines into one. Use the polarity reverse switch to combine two mics - one with polarity reversed - to remove background noise and feedback or combine and correct polarity when using a pair of mics above and below a drum or in front and rear of an open backed guitar amp. Connections are female XLRs in, male XLR out. Specifications: Frequency response:+/-0.3dB 20Hz-20kHz Total harmonic distortion + noise: Less than 0.025% at 1kHz Isolation between inputs: Greater Than 42dB Insertion loss: -0.6dB, 50 Ohms source impedance -3.8dB, 200 Ohms source impedance Output level: -3.8dB with both channels at 0dB sine wave input, in phase Maximum input level: +28dBm Input impedance: 600 Ohms Output impedance: Less than 100 Ohms