COMPACT 4-OUT HEADPHONE AMP The ZHA-4 splits a single stereo headphone output into four separate powered 1/8 headphone jacks, each with their own volume and mute control. Perfect for bands, podcasts, productions, and more.

• Portable, stereo headphone amplifier designed for demanding and critical audio monitoring.
• 4 independent 3.5 mm headphone outputs, each with a dedicated volume control knob.
• Independent mute buttons for each channel provides the ability to mute each output channel immediately without affecting overall output settings.
• High versatility of the two-way power system. Powered by either two AA batteries or the USB Type-C connector from USB AC adapter or USB battery pack. SPECS GAIN: 24 dB CLIPPING LEVEL: +18 dBu OUTPUT IMPEDANCE: 47 Ohm FREQUENCY CHARACTERISTICS: 10 - 50 kHz, +/-1.0 dB DYNAMIC RANGE: 100 dB INPUT IMPEDANCE: 10 kOhm POWER SUPPLY: 2*AA batteries (alkaline, nickel-metal hydride or lithium) / External USB Type-C DC5V / 1 A WEIGHT: 180 g EXTERNAL DIMENSIONS: 130 x 70 x 52 mm ESTIMATED CONTINUOUS OPERATION TIME USING BATTERIES: about 3.5 hours with Alkaline / about 4.5 hours with NiMH (1900 mAh) / about 8.5 hours with Lithium *Connecting 4 headphones with 32 Ohm load *Continuous battery operation times were determined using in-house testing methods. They will vary greatly according to use conditions. WHAT'S IN THE BOX
• ZHA-4 Handy Headphone Amplifier
• Stereo Mini Audio Cable (19 / 50cm)
• Quick Guide