SPL Phonitor se Black, Headphone Amplifier, Powerful headphone amplifier for studio and hi-fi applications, Unbalanced analog RCA inputs, VOLTAiR - 120 volt technology, Phonitor matrix with 2 presets (C1 / Off / C2), Headphone output: 6.3 mm stereo jack socket, Frequency response headphone output: 10 - 300,000 Hz (-3 dB), Crosstalk at 1 kHz: -90 dB, THD + N (10 Hz - 22 kHz, 0 dBu): 0.00091%, Noise (A-weighted): -103 dB, Dynamic range: 135.5 dB, Max. Output power (600 O): 2 x 2.7 W., Max. Output power (250 O): 2 x 5 W, Max. Output power (32 O): 2 x 1 W, Dimensions (W x H x D): 278 x 57 x 330 mm, Weight: 2.8 kg, Colour: Black