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General| Signal-to-Noise Ratio | ≥110dB |
|---|---|
| SNR | ≥110dB |
| Matching Headphone Impedance | 16-300Ω |
| Frequency Response (±3dB) | 20Hz-20kHz |
| Type | Headphone Amplifier |
| Frequency Response | 20Hz-20kHz |
| Total Harmonic Distortion | ≤0.001% |
| PC-USB operating system | Linux |
| THD | ≤0.001% |
| Headphone output power | 1000mW @16Ω, 500mW @32Ω, 65mW @300Ω |
| Output mode | RCA |
Details the operational controls and indicators on the front of the device.
Outlines the input/output ports and interfaces on the rear of the device.
Addresses common noise and humming problems when the device is powered on.
Guides users on resolving issues when all cables are connected but no sound is produced.
Provides solutions for when a Bluetooth device cannot pair with the BOX X3.
Explains causes and fixes for unstable or intermittent Bluetooth connections.
Clarifies the function of the multi-function knob for power and volume.
Details how to select and switch between different audio input sources.
Addresses simultaneous connection of headsets and active speakers via AUX input.
Explains the necessity of a ground wire for turntables without a dedicated connection.
Instructions on how to properly connect the ground wire to the device.
Clarifies if the device supports Moving Coil (MC) cartridges.
Guidance on using the device with turntables that have selectable preamps.
How to connect the BOX X3 to an external power amplifier.
Explains compatibility with turntables and headphones.
How to connect the preamp directly to powered or passive speakers.
Identifies the type of equalization used in the preamp.
Instructions for connecting a subwoofer to the unit.
Lists compatible vacuum tubes for replacement and DIY.
Tips for troubleshooting and improving the audio output quality.
Information on whether the device can be left on continuously.
Addresses issues with vacuum tubes damaged during shipping.
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