Tegeler Audio Manufaktur TSM Tube Summing Mixer, 2×16 balanced inputs (Neutrik TRS), Internal mixbuss up to +22 dBu, Transformer-Tube-Transformer output stage, Big VU meters, Adjustable output level, Bandwidth: 20 - 40.000 Hz +/- 1,5 dB, Dynamic: > 110 dB unweighted, Crosstalk > 90 dB @ 1kHz, Internal power supply with premium toroide transformer, 220V-240V/50Hz or 100V -120V/60Hz, Dimensions: Height (H/W/D): 88 (2U) x 483 x 250 mm