TOPPING A70PRO Fully Balanced Headphone Amplifier

Discover the pinnacle of audio amplification with the Topping A70 Pro, a fully balanced headphone amplifier designed to elevate your listening experience. Equipped with the revolutionary T'ang-ku-la Module, ultra-low noise input stage, and an astounding 17000mW x 2 output power, this amplifier redefines high-fidelity sound. Seamlessly transitioning between headphone amplifier and preamplifier, the A70 Pro offers precision control, customizable settings, and a vibrant Aurora UI—all in a sleek, powerful package.

T'ang-ku-la Module: Elevate Your Audio Journey: Named after an insurmountable mountain, the T'ang-ku-la Module signifies the amplifier's soaring spirit. Featuring a new three-stage feedback circuit, it reduces noise and distortion while achieving an unmatched 147dB dynamic range. This innovative technology not only enhances reliability and extends component life but also diminishes thermal noise for a truly immersive audio experience.

Optimized Circuit Architecture: Silence Meets Power The A70 Pro introduces an ultra-low noise input stage that enhances balanced input noise performance and increases input impedance to 20kΩ, ensuring seamless compatibility with a variety of devices. A redesigned gain architecture further diminishes noise and distortion at high gain states, delivering unparalleled clarity.

High-Powered Output, Minimal Distortion: Sonic Prowess Delivering an abundance of output power, the A70 Pro commands attention. With a remarkable output power of 17000mW@16Ω, it effortlessly drives even the most demanding headphones. The amplifier ensures a robust output thrust with ultra-low distortion and minimal noise levels, reaching as low as 0.2uVrms—a testament to its capability with high-sensitivity headphones.

Ground Loop Noise: Banished with a Switch Bid farewell to ground loop noise with the A70 Pro's GND/LIFT switch. In LIFT mode, noise vanishes, leaving you with pure, uninterrupted sound.

Aurora UI: Tailor Your Experience Experience the A70 Pro's vibrant display screen adorned with three touch buttons, featuring the Aurora UI system. Customize the device's appearance and access playback information, FFT, and VU meter effortlessly by pressing the volume knob—an innovative and visually engaging user interface.

Precise Volume Adjustment with R2R Relay Control: Fine-Tuned Brilliance Topping introduces a precise volume adjustment system for the A70 Pro, employing relays and resistor networks to create an R2R volume control module. This design ensures accurate volume adjustment with extended service life, maintaining fidelity even at low volume levels.

Expandable Inputs with EXT90 Support: Versatility Unleashed Equipped with balanced XLR and Single-Ended RCA inputs, the A70 Pro offers a robust foundation. Users can expand connectivity using the Topping EXT90 external input device, adding four Balanced XLRs and two single-ended RCA inputs, ensuring versatility and adaptability to diverse audio setups.

Specifications:
Max THD+N: <0.00005%
Max SNR: 147dB
Max dynamic range: 147dB
Frequency response: 20Hz - 40kHz
Max output levels: 56Vpp (low gain), 54Vpp (high gain)
Actual noise level (A-wt): <0.6uVrms (low gain), <1.8uVrms (high gain)
Lowest crosstalk: -133dB
Gain: 6dB (low gain), 19.8dB (high gain)
Output levels
17,000mW x2 @16Ω
12,600mW x2 @32Ω
6,000mW x2 @64Ω
1,370mW x2 @300Ω
670mW x2 @600Ω

Packing list:
TOPPING A70Pro
Remote Control
Power Cable
6.36 to 3.5mm adapter
Warranty card