Tegeler TSM Tube Summing Mixer, Analog Totalizer, 2x 16 balanced inputs via 4 sub-D sockets (XLR or jack via cable whip, Tascam assignment), 2x 4 balanced inputs (Neutrik stereo), Internal mixer bus with up to 22 dBu, Active tube-transformer output stage, Illuminated VU meter, Output Level switch, Frequency response: 20 - 40,000 Hz / - 1.5 dB, Dynamic:> 110 dB unaffected, Interpreting between two channels> 90 dB @ 1 kHz, Internal power supply (15 W) with high quality ring core transformer, Dimensions (wxhxd): 88 (2U) x 483x250mm