Beyerdynamic DT 1770 Pro 250 Ohm Studio Recording Headphones w/Tesla Driver Bundle with Rockville BluTube 70w Tube Amplifier/Home Theater Stereo Receiver w/ Bluetooth
- Built-in Preamplifier. (2) sets of RCA inputs to connect to any audio device like a TV, Laptop, or MP3 player, etc. Headphone output. VU meter. Adjustable bass and treble (2 band equalizer). USB input for music files from USB thumb drive. USB can charge your phone or other USB device. Rear Speaker Terminals: Banana plug / binding post outputs for 2 speakers. Frequency Response (3dB): 25Hz-20kHz. Input Impedance: 47kO. Input Sensitivity: 300mV. Output Impendence: 4-8ohm.