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Topping - A900

Headphone Amplifier + Preamp

₹ 119,999

Inclusive of all taxes

    DELIVERY

    Dispatches in 48 hours

    RETURNS & WARRANTY

     7 Day Replacement Guarantee

    1 Year Warranty

Topping Presents Hi-Fi Headphone Amplifier - The A900, An Upgrade To Your Audio Setup

Topping introduces the A900, an ultra-flagship headphone amplifier, born from a relentless pursuit of pure sound. Its refined industrial design reflects Topping's music-first philosophy, clean, angular lines that symbolise precision, balance, and harmony. Bold yet understated, it mirrors a perfectly composed score where structure meets emotion. Inside, the A900 adopts the advanced T’ang-ku-la amplifier architecture with record-breaking 151dB dynamic range and ultra-low 0.00003% THD, paired with a fully balanced relay volume control, isolated power supply, versatile connectivity, and up to 22,000mW output. Designed for both headphones and preamp use, it pairs seamlessly with the flagship D900 DAC to form a true reference-grade system, effortlessly powerful, meticulously refined and always letting the music take centre stage.

Features Optimised T’ang-ku-la Amplifier Architecture For Exceptional Performance

Topping A900 adopts the advanced T’ang-ku-la amplifier architecture with a patented three-stage feedback circuit. This design reduces circuit noise and high-frequency distortion, pushing the dynamic range to a record-breaking 151dB and full-band THD (90kBW) down to an ultra-low 0.00003%. It also minimises heat generation, improving long-term reliability while lowering thermal noise. With three T’ang-ku-la modules forming a 6-channel fully differential balanced design, the A900 maintains true full-link balanced amplification and delivers up to 22,000mW (@160) of powerful output.

Equipped With Fully Balanced Relay Volume Control For Precise Audio

Topping A900 features a fully balanced relay-based volume control system, achieving channel crosstalk as low as -153dB. This ensures pure, transparent sound reproduction with lifelike vocals and intricate instrumental details. Its precise 0.5dB step adjustments allow for smooth, nuanced control, offering a refined and comfortable listening experience at every level.

Seamless & Audiophile-Grade Connectivity For Professional Sound

Topping A900 is equipped with premium Neutrik connectors on the rear panel, providing three sets of stereo combo balanced inputs for maximum compatibility with professional audio equipment. On the output side, it supports six headphone ports across four mainstream connection standards – 6.35mm single-ended, 4.4mm balanced, 4-pin XLR, and dual 3-pin XLR using high-quality connectors from Neutrik and Japan’s NDICS Pentaconn. Outputs can be configured independently or simultaneously, making it versatile for audiophiles and studio users alike.

Extended Usability With Pure Preamp Mode For High-Fidelity Audio

Topping A900 includes high-quality preamp outputs and a dedicated pure preamp mode. With THD+N

Embeds Isolated Power Supply For Lossless & Clean Audio Output

Topping A900 employs a physically isolated power supply design, separating the digital processing circuit from the two analogue amplification circuits. This reduces interference, ensuring stable, reference-grade voltage for uncompromised audio performance.

Fused With Responsive Control Interface & Comes With A Premium Remote Control

Topping A900 features a 2-inch full-colour display that provides real-time playback information, FFT spectrum, or VU meter views. The intuitive interface combines three touch-sensitive buttons with a multifunction volume knob for precise adjustments. Users can personalise the interface with 9 background colours, tailoring both function and aesthetics to their preference. It includes a premium remote crafted from a single block of high-strength aluminium alloy using CNC machining, followed by fine sandblasting for a refined look and feel. It offers convenient control without compromising build quality.

Crafted With Premium Materials Featuring Angular Lines For An Aesthetic Look

Topping A900 features clean, angular lines that go beyond structure, reflecting a deeper sense of aesthetic order. Bold yet restrained, like notes in a precise composition, its design balances logic and emotion. Beneath the sleek exterior lies a refined sound for an exceptional experience.

Pair With Topping's Flagship DAC D900 For An Upgraded Performance

Topping A900 pairs seamlessly with Topping's ultra-flagship DAC, the D900, creating a reference-grade DAC & amp combo. With extensive input/output options and hi-end-level acoustics, this setup delivers both fun and uncompromising performance for the discerning listener.

All You Need To Know About The Topping A900

Headphone Output

4.4mm (Balanced) 4-PIN XLR (Balanced) 6.35mm (Single-Ended)

Input

XLR+6.35mm TRS Combo

Output

XLR

Amplifier Specifications (BAL IN/SE OUT)

THD+N @1kHz A-wt : THD @20-20kHz 90kBW : SNR @MAX OUT 1kHz A-wt : 143dB Dynamic Range @1kHz A-wt : 143dB Frequency Response : 20Hz-40kHz (+0.05dB) 10Hz-200kHz (+0.1dB) Output Level : 30 Vpp @G=L30 Vpp @G=M 30 Vpp @G=H AP Measured Noise Level A-wt : Actual Noise Level @A-wt : Channel Crosstalk @1kHz : -105dB Input Sensitivity : 22.0Vms @G=L 7.0Vrms @G=M 2.1Vmms @G=H Gain : -6.1dB @G-L+4.3dB @G=M+13.8dB @G=H Output Impedance : Output Power : 6000mW x 2 @16Ω THD+N 3000mW x 2 @32Ω THD+N 1550mW x 2 @64Ω THD+N 660mW x 2 @150Ω THD+N 330mW x 2 @300Ω THD+N 165mW x 2 @600Ω THD+N Adapter Impedance : >8Ω

Amplifier Specifications (BAL IN/BAL OUT)

THD+N @1kHz A-wt : THD @20-20kHz 90kBW : SNR @MAX OUT 1kHz A-wt : 151dB Dynamic Range @1kHz A-wt : 151dB Frequency Response : 20Hz-40kHz (+0.05dB)10Hz-200kHz (+0.1dB) Output Level : 60Vpp @G-L60Vpp @G=M60Vpp @G=H AP Measured Noise Level A-wt : Actual Noise Level @A-wt : Channel Crosstalk @1kHz : -153dB Input Sensitivity : 22.0Vrms @G-L 7.0Vrms @G=M 2.1Vrms @G=H Gain : -0.1dB @G=L +10.3dB @G=M +19.8dB @G=H Output Impedance : Output Power : 22000mW x 2 @16Ω THD+N 14000mW x 2 @32Ω THD+N 7000mW x 2 @64Ω THD+N 3000mW x 2 @150Ω THD+N 1500mW x 2 @300Ω THD+N 750mW x 2 @600Ω THD+N Adapter Impedance : >8Ω

Box content

1. Topping A9002. Remote Control 3. 6.35mm to 3.5mm Adaptor AC Cable 4. Quick Start Guide 5. Product Information Card

Box content

1. Topping A9002. Remote Control 3. 6.35mm to 3.5mm Adaptor AC Cable 4. Quick Start Guide 5. Product Information Card

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Our customer support is available Monday to Friday: 11am-6pm.

The warranty period on Topping A900 is for 1 year. To read more information click here.

The Topping A900 adopts TOPPING’s advanced T’ang-ku-la amplifier architecture, achieving a record-breaking 151dB dynamic range and ultra-low 0.00003% THD. It combines power, precision, and reliability with a fully balanced relay volume control and premium connectivity.

The Topping A900 provides up to 22,000mW (@16Ω), making it capable of driving demanding headphones with ease while maintaining pristine sound quality.

Yes. The Topping A900 includes high-quality preamp outputs with a dedicated pure preamp mode, achieving THD+N What kind of volume control system does the Topping A900 use? It uses a fully balanced relay-based volume control, ensuring ultra-low channel crosstalk (-153dB) and precise adjustments in 0.5dB steps for refined listening. What connectivity options are available on the Topping A900? The Topping A900 comes with premium Neutrik connectors, including three sets of stereo combo balanced inputs and versatile headphone outputs. This makes it suitable for both audiophile and studio use.

It uses a fully balanced relay-based volume control, ensuring ultra-low channel crosstalk (-153dB) and precise adjustments in 0.5dB steps for refined listening.

The Topping A900 comes with premium Neutrik connectors, including three sets of stereo combo balanced inputs and versatile headphone outputs. This makes it suitable for both audiophile and studio use.

It uses a fully balanced relay-based volume control, ensuring ultra-low channel crosstalk (-153dB) and precise adjustments in 0.5dB steps for refined listening.

The Topping A900 comes with premium Neutrik connectors, including three sets of stereo combo balanced inputs and versatile headphone outputs. This makes it suitable for both audiophile and studio use.

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