SPL TwinTube Processors AES - Model 1214, Tube saturation processor, Delivers warmth and depth of analog tube equipment, Saturation: for warmth, higher loudness, from subtile to audible harmonic distortion, Harmonics: gives more presence and clarity without noticeable increase of level, Frequency response: 10 Hz - 77 kHz, CMR -74 dBu (at 1 kHz, 0dBu inputlevel), Signal to Noise A-weighted: -87 dBu, Dynamic Range: 105 dB, max. inputlevel +20 dBu, Input: XLR, electr. balanced, Impedance ca. 20 kOhm, Output: XLR, electr. balanced, optional trafosymmetriert, Impedance ca. 20 kOhm, max. outputlevel +21 dBu, Signal-LED -20 dBu, Overload-LED +18 dBu (hold 1,5 Sec.), ground lift switch, dimensions: 19" 1U