Description
The new Aune Audio BX2 Magnum Portable Headphone amplifier features generous reserves into the power supply, amplification stages, and signal path, the amplifier never strains, and it delivers stable, controlled sound that reveals true musical details and dynamics under any conditions.
The new BX2 Magnum builds its headroom around three core principles: Power Headroom: Seven independent cells with complete isolation between analog and
digital circuits-eliminating interference. Amplification Headroom: Four-channel fully balanced architecture paired with 30V high-voltage drive-unlocking exceptional dynamics and control. Signal Headroom: Physical relay switching and R2R precision volume control ensure no coloration, no loss-allowing every component to operate comfortably within its linear zone. The result: stable dynamics, balanced frequency response, and refined musicality.
Dual Nutube 6P1 Vacuum Tubes: Genuinely active in the amplification stage-not
decorative-delivering the signature warmth and richness of tube sound. Fully Balanced Four-Channel Architecture: Four independent signal paths, eliminate crosstalk, ensuring precise imaging and a well-defined soundstage. 30V Anode High-Voltage Supply: Breaking through the voltage limitations typical of portable amplifiers, delivering enhanced dynamics and authoritative low-end control. Transistor/Tube Physical Relay Switching: Pure, lossless switching with no added coloration-preserving the authentic character of each signal path. 31-Step R2R Digital Volume Control: Exceptional channel consistency with no contact noise ensuring balanced output even at low listening levels. Seven-Cell Isolated Power System: Six cells deliver ‡12V for the analog section, while a
seventh cell powers digital circuitry-separating power supplies for a quieter background.
Tube Mode: Warm, rich, and inviting. A spacious soundstage and full-bodied midrange bring out the emotion in vocals and instruments-ideal for extended listening sessions.
Transistor Mode: Precision Analysis, The Ideal Choice for Detail Enthusiasts Linear response with lightning-fast transients-rhythm is crisp, every detail revealed. Designed for those who demand the ultimate in resolution and dynamics. The two signal paths are physically independent, allowing instant switching to suit different headphones or music
genres-giving you full control over the tonal presentation.
The new BX2 Magnum features multiple input options, including 3.5mm, 4.4mm, and RCA, the BX2 Magnum supports a variety of devices from smartphones to high-end DACs. This amplifier is not only built for portability, but it can also seamlessly integrate into desktop systems, delivering the high-quality amplification necessary for both casual and professional audio setups.
Specifications:
3.5mm/RCA Input Impedance: 10kΩ
4.4mm Input Impedance: 32kΩ
3.5mm/4.4mm Output Impedance: 1Ω
Frequency Response (20Hz-80kHz): ±0.05dB
THD+N:
≤0.0005% (3.5mm output / Transistor mode)
≤0.0003% (4.4mm output / Transistor mode)
≤1% (Tube mode)
Crosstalk: <-100dB @ 1kHz, 600Ω
SNR: >117dB
Dimensions: 186×92×38 mm (excluding knob)
Battery Life: <13 hours (Transistor mode) / >8 hours (Tube mode)
Charging Time: Approx. 4.5 hours (3.7V digital power cell), Approx. 5 hours (±12V power cells)
Accessories: 3.5mm to 3.5mm cable x1, 4.4mm to 4.4mm cable x1, USB-C to USB-C charging cable x1, Velvet pouch x1, Spare silicone feet x4, Quick start guide x1, Warning card x1
Load Specifications:
G-L (Low Gain)
32Ω - 577mW (3.5mm Single-Ended Output) / 1800mW (4.4mm Balanced Output)
100Ω - 193mW (3.5mm Single-Ended Output) / 640mW (4.4mm Balanced Output)
250Ω - 77mW (3.5mm Single-Ended Output) / 256mW (4.4mm Balanced Output)
300Ω - 64mW (3.5mm Single-Ended Output) / 210mW (4.4mm Balanced Output)
600Ω - 32mW (3.5mm Single-Ended Output) / 104mW (4.4mm Balanced Output)
G-H (High Gain)
32Ω - 1400mW (3.5mm Single-Ended Output) / 5180mW (4.4mm Balanced Output)
100Ω - 476mW (3.5mm Single-Ended Output) / 1850mW (4.4mm Balanced Output)
250Ω - 196mW (3.5mm Single-Ended Output) / 770mW (4.4mm Balanced Output)
300Ω - 163mW (3.5mm Single-Ended Output) / 644mW (4.4mm Balanced Output)
600Ω - 81mW (3.5mm Single-Ended Output) / 320mW (4.4mm Balanced Output)
