DigiZoid ZO FS - Headphone Amplifier

Audiophile Grade - The ZO FS uses AD8397 amplifiers from Analog Devices, known for low distortion, wide dynamic range, and high output power. In Class-A configuration, these amps deliver smooth sound reproduction from end to end of the audio spectrum. - High output voltage and current deliver 550mW into 8ohm. In combination with the precision volume control, ZO FS easily drives everything from sensitive IEMs to high impedance headphones without the need for multiple gain settings. - High frequency (LC) filters on all active component power rails eliminate EMI. Shielded audio jacks with copper alloy conductors and gold-plated contacts optimize signal integrity and improve immunity to noise from external sources. - Three dedicated dual power supplies - one each for amplifier circuits, volume control and equalization systems delivering fast and smooth power. - Full color OLED screen for at-a-glance viewing of system settings. - ALPS multifunction switch enables easy and intuitive control. Simply push in the switch to toggle through settings and rotate up/down to change levels. Physical - ZO Dimensions: 3.1 x 1.75 x 0.43 in - ZO Weight: 2.3oz - Case: Black anodized CNC machined aluminum Connectivity - Input/Output: 3.5mm - Charging: Micro-USB Battery - Type: Li-Polymer - Capacity: 600mAh - Charge Time: Approx 3 hrs - Playback Time: 10-12 hrs - Fuel Gauge: 8 levels Under the Hood - Max Input: 2.0Vrms - Input Impedance: 10k ohm - Output Impedance: 0.45 ohm - Max Output Voltage: 6Vpp at 8ohm, 8.8Vpp at 300ohm - Max Output Current: 263mA at 8ohm, 11mA at 300ohm - Power Output: 550mW at 8ohm, 32mW at 300ohm - Signal Gain: Adjustable from -87 dB to +18 dB - Volume Steps: 210 at 0.5dB per step (step 175 = 0dB) - Bass Levels: 33 selectable center frequencies from 90Hz down to 25Hz. - Treble Levels: 33 selectable center frequencies from 3kHz up to 20kHz. In the Box - ZOFS - Mini 3.5mm stereo cable - Micro-USB charging cable - Quick start guide