HAYDEN Headphone Amplifier 4 Channels Metal Stereo Audio Amplifier, Mini Earphone Splitter with Power Adapter-4x Quarter Inch Balanced TRS Headphones Output and TRS Audio Input for Sound Mixer. PROVIDES 4 INDEPENDENT CHANNELS - The HAYDEN 4-Channel Headphone Amp can share a single audio source with up to 4 headphone outputs. It is compatible with 1/4' and 3.5mm TRS/TS inputs. CONTROL EACH CHANNEL INDEPENDENTLY - Adjust the volume of each connected headphone with the individual volume control knobs to each listener's volume level preference. OFFERS STEREO TO MONO SWITCH- Conveniently change the stereo input signal to mono with the stereo-to-mono Switch. AMP UP THE AUDIO! - Each channel provides up to 20dB gain. The low output impedance of the amp delivers sufficient power to your headphones. This enables your headphones to perform at their best. hayden headphone amplifier - - hayden ha400 headphone amplifier - - headphones to connect to amp - - headphones that need an amp - - headphones to hear tv better - - does an amp make headphones sound better - - hayden amplifier - - hayden high 5 amp - - hayden ampli - - beyerdynamic headphone amp - - bluetooth headphone amplifiers - - hayden hy-i4ii 4-channel headphone amplifier - - denon headphone amp - - d & a hawk amplifier - - hayden amp - - headphone amplifier with equalizer - - headphone amplifier guitar center - - hayden guitar amp - - guitar headphone amplifiers - - headphones connected to pc but no sound - - headphones showing up as speakers - - j hayden - - hayden jbl - - kendir-k1 headphones - - klipsch headphone amplifier - - kd headphones - - op amp headphone amplifier - - pyle headphone amp - - pioneer headphone amp - - q headphones +53% $0.02 $1.89 quinn audio headphones - - wireless headphone amplif INCLUDES AN EXTERNAL POWER SUPPLY - The HAYDEN 4-Channel Headphone Amp comes with an UL certified AC 5V 2A power adapter. The amplifier has a LED indicator that illuminates when powered on.