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    TOPPING - A90
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    TOPPING - A90

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    7 Day Replacement Guarantee Info

    7 Day Replacement Guarantee

    All products are covered by the Headphone Zone 7 Day Replacement Guarantee. This product is eligible for a free replacement in case you receive a damaged, defective or different item.

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    1 Year Manufacturer's Warranty Info

    Warranty & Service

    This product is covered by TOPPING's 1 Year Warranty against manufacturing defects. The Authorised service partner for all warranty claims in India is Headphone Zone.
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    7 Day Replacement Guarantee

    All products are covered by the Headphone Zone 7 Day Replacement Guarantee. This product is eligible for a free replacement in case you receive a damaged, defective or different item.

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    Chi-Fi
    Excellence

    Ideal for
    Audiophiles

    Ideal for
    Indoor Use

    For Studio &
    Professionals

    1 Year of
    Warranty

    Balanced XLR
    Output

    DESCRIPTION

    THE ULTIMATE HEADPHONE AMPLIFIER

    The Topping Audio A90 is a certified Hi-Res Audio amplifier. This high-performance Amp employs the new Nested Feedback Composite Amplifier (NFCA) module. The voltage-current hybrid feedback architecture and ultra-high gain feedback technology offer powerful performance and superb dynamic range of 145dB.
    A90

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    DRIVE ANY HEADPHONE OR IEM OF YOUR CHOICE

    Connect your A90 to any headphone or IEM of your choice. It has three output jacks i.e. 4-pin XLR, 4.4 balanced and single-ended 6.35mm. It has a high-output voltage of SE 25Vpp/ balanced 49Vpp with an output impedance that's less than 0.1Ω. You also get 3 different gain settings for single-ended (-9.5dB/0dB/9.5dB) and balanced (-3.5dB/6dB/15.5dB) connections. Apart from powerful full-sized over-ears, this amplifier is perfect for sensitive IEMs as well with a noise floor of 0.2uVrms.

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    WORKS AS A PRE-AMP TOO!

    You can easily connect your A90 in pre-amplifier mode with the Topping Audio D90 DAC as well as any active speaker or power amplifier. When in pre-amp mode, the output impedance for single-ended connections is 20Ω and for balanced connections is 40Ω.

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    SPECS

    A90 HEADPHONE AMPLIFIER SPECIFICATION
    THD+N @ 1kHz A-WT SE IN/SE OUT:<0.00007% @Output=500mW(32Ω), <0.00006% @Output=80mW(300Ω)
    BAL IN/SE OUT:<0.00009% @Output=500mW(32Ω), <0.00006% @Output=80mW(300Ω)
    SE IN/BAL OUT:<0.00007% @Output=2000mW(32Ω), <0.00006% @Output=320mW(300Ω)
    BAL IN/BAL OUT:<0.00009% @Output=2000mW(32Ω), <0.00006% @Output=320mW(300Ω)
    THD+N @ 20-20kHz 90kBW SE IN/SE OUT:<0.0004% @Output=500mW(32Ω), <0.0001% @Output=80mW(300Ω)
    BAL IN/SE OUT:<0.0004% @Output=500mW(32Ω), <0.0001% @Output=80mW(300Ω)
    SE IN/BAL OUT:<0.0004% @Output=2000mW(32Ω), <0.0001% @Output=320mW(300Ω)
    BAL IN/BAL OUT:<0.0004% @Output=2000mW(32Ω), <0.0001% @Output=320mW(300Ω)
    SNR @MAX OUT 1kHz-A-WT SE IN/SE OUT:141dB
    BAL IN/SE OUT:137dB
    SE IN/BAL OUT:145dB
    BAL IN/BAL OUT:138dB
    DYNAMIC RANGE @MAX OUT 1kHz-A-WT 
SE IN/SE OUT:141dB
    BAL IN/SE OUT:137dB
    SE IN/BAL OUT:145dB
    BAL IN/BAL OUT:138dB
    FREQUENCY RESPONSE SE IN/SE OUT:20Hz-40kHz(±0.5dB)
    BAL IN/SE OUT:20Hz-40kHz(±0.1dB)
    SE IN/BAL OUT:20Hz-40kHz(±0.5dB)
    BAL IN/BAL OUT:20Hz-40kHz(±0.1dB)
    OUTPUT LEVEL SE IN/SE OUT:9Vpp @G=L, 25Vpp @G=M, 25Vpp @G=H
    BAL IN/SE OUT:9Vpp @G=L, 25Vpp @G=M, 25Vpp @G=H
    SE IN/BAL OUT:18Vpp @G=L, 49Vpp @G=M, 49Vpp @G=H
    BAL IN/BAL OUT:18Vpp @G=L, 49Vpp @G=M, 49Vpp @G=H
    AP MEASURED NOISE LEVEL @A-WT SE IN/SE OUT:<0.7uVrms @G=L, <0.7uVrms @G=M, <0.9uVrms @G=H
    BAL IN/SE OUT:<0.7uVrms @G=L, <0.7uVrms @G=M, <0.9uVrms @G=H
    SE IN/BAL OUT:<0.9uVrms @G=L, <0.9uVrms @G=M, <1.4uVrms @G=H
    BAL IN/BAL OUT:<0.9uVrms @G=L, <0.9uVrms @G=M, <1.4uVrms @G=H
    ACTIVE NOISE LEVEL @A-WT SE IN/SE OUT:<0.2uVrms @G=L, <0.2uVrms @G=M, <0.6uVrms @G=H
    BAL IN/SE OUT:<0.2uVrms @G=L, <0.2uVrms @G=M, <0.6uVrms @G=H
    SE IN/BAL OUT:<0.6uVrms @G=L, <0.6uVrms @G=M, <1.3uVrms @G=H
    BAL IN/BAL OUT:<0.6uVrms @G=L, <0.6uVrms @G=M, <1.3uVrms @G=H
    CHANNEL CROSSTALK @1kHz 
SE IN/SE OUT:-106dB
    BAL IN/SE OUT:-102dB
    SE IN/BAL OUT:-105dB
    BAL IN/BAL OUT:-102dB
    IMD CCIF @(18kHz+19kHz) SE IN/SE OUT:-118dB
    BAL IN/SE OUT:-118dB
    SE IN/BAL OUT:-118dB
    BAL IN/BAL OUT:-118dB
    IMD SMPTE @(60kHz+7kHz) SE IN/SE OUT:-110dB@SMPTE4: 1, -115dB@SMPTE1: 1
    BAL IN/SE OUT:-110dB@SMPTE4: 1, -115dB@SMPTE1: 1
    SE IN/BAL OUT:-110dB@SMPTE4: 1, -115dB@SMPTE1: 1
    BAL IN/BAL OUT:-110dB@SMPTE4: 1, -115dB@SMPTE1: 1
    INPUT SENSITIVITY SE IN/SE OUT:9.5uVrms @G=L, 8.8uVrms @G=M, 2.9uVrms @G=H
    BAL IN/SE OUT:9.5uVrms @G=L, 8.8uVrms @G=M, 2.9uVrms @G=H
    SE IN/BAL OUT:9.5uVrms @G=L, 8.8uVrms @G=M, 2.9uVrms @G=H
    BAL IN/BAL OUT:9.5uVrms @G=L, 8.8uVrms @G=M, 2.9uVrms @G=H
    GAIN SE IN/SE OUT:-9.5dB @G=L, 0dB @G=M, 9.5dB @G=H
    BAL IN/SE OUT:-9.5dB @G=L, 0dB @G=M, 9.5dB @G=H
    SE IN/BAL OUT:-3.5dB @G=L, 6.0dB @G=M, 15.5dB @G=H
    BAL IN/BAL OUT:-3.5dB @G=L, 6.0dB @G=M, 15.5dB @G=H
    OUTPUT IMPEDANCE SE IN/SE OUT:<0.1Ω
    BAL IN/SE OUT:<0.1Ω
    SE IN/BAL OUT:<0.2Ω
    BAL IN/BAL OUT:<0.2Ω
    OUTPUT POWER SE IN/SE OUT:3300mW X 2 @16Ω THD+N<0.1%, 2000mW X 2 @32Ω THD+N<0.1%, 250mW X 2 @300Ω THD+N<0.1%, 125mW X 2 @600Ω THD+N<0.1%
    BAL IN/SE OUT:3300mW X 2 @16Ω THD+N<0.1%, 2000mW X 2 @32Ω THD+N<0.1%, 250mW X 2 @300Ω THD+N<0.1%, 125mW X 2 @600Ω THD+N<0.1%
    SE IN/BAL OUT:7600mW X 2 @16Ω THD+N<0.1%, 6400mW X 2 @32Ω THD+N<0.1%, 1000mW X 2 @300Ω THD+N<0.1%, 500mW X 2 @600Ω THD+N<0.1%
    BAL IN/BAL OUT:7600mW X 2 @16Ω THD+N<0.1%, 6400mW X 2 @32Ω THD+N<0.1%, 1000mW X 2 @300Ω THD+N<0.1%, 500mW X 2 @600Ω THD+N<0.1%
    LOAD IMPEDANCE SE IN/SE OUT:>8Ω
    BAL IN/SE OUT:>8Ω
    SE IN/BAL OUT:>8Ω
    BAL IN/BAL OUT:>8Ω
    A90 PRE-AMPLIFIER SPECIFICATION
    THD+N @ 1kHz A-WT SE IN/SE OUT:<0.00006%
    BAL IN/SE OUT:<0.00006%
    SE IN/BAL OUT:<0.00006%
    BAL IN/BAL OUT:<0.00006%
    THD+N @ 20-20kHz 90kBW SE IN/SE OUT:<0.00001%
    BAL IN/SE OUT:<0.00001%
    SE IN/BAL OUT:<0.00001%
    BAL IN/BAL OUT:<0.00001%
    SNR @1kHz-A-WT SE IN/SE OUT:141dB
    BAL IN/SE OUT:137dB
    SE IN/BAL OUT:145dB
    BAL IN/BAL OUT:138dB
    DYNAMIC RANGE @1kHz-A-WT 
SE IN/SE OUT:141dB
    BAL IN/SE OUT:137dB
    SE IN/BAL OUT:145dB
    BAL IN/BAL OUT:138dB
    FREQUENCY RESPONSE SE IN/SE OUT:20Hz-40kHz(±0.5dB)
    BAL IN/SE OUT:20Hz-40kHz(±0.1dB)
    SE IN/BAL OUT:20Hz-40kHz(±0.5dB)
    BAL IN/BAL OUT:20Hz-40kHz(±0.1dB)
    OUTPUT LEVEL SE IN/SE OUT:9Vpp @G=L, 25Vpp @G=M, 25Vpp @G=H
    BAL IN/SE OUT:9Vpp @G=L, 25Vpp @G=M, 25Vpp @G=H
    SE IN/BAL OUT:18Vpp @G=L, 49Vpp @G=M, 49Vpp @G=H
    BAL IN/BAL OUT:18Vpp @G=L, 49Vpp @G=M, 49Vpp @G=H
    AP MEASURED NOISE LEVEL @A-WT SE IN/SE OUT:<0.7uVrms @G=L, <0.7uVrms @G=M, <0.9uVrms @G=H
    BAL IN/SE OUT:<0.7uVrms @G=L, <0.7uVrms @G=M, <0.9uVrms @G=H
    SE IN/BAL OUT:<0.9uVrms @G=L, <0.9uVrms @G=M, <1.4uVrms @G=H
    BAL IN/BAL OUT:<0.9uVrms @G=L, <0.9uVrms @G=M, <1.4uVrms @G=H
    ACTIVE NOISE LEVEL @A-WT SE IN/SE OUT:<0.2uVrms @G=L, <0.2uVrms @G=M, <0.6uVrms @G=H
    BAL IN/SE OUT:<0.2uVrms @G=L, <0.2uVrms @G=M, <0.6uVrms @G=H
    SE IN/BAL OUT:<0.6uVrms @G=L, <0.6uVrms @G=M, <1.3uVrms @G=H
    BAL IN/BAL OUT:<0.6uVrms @G=L, <0.6uVrms @G=M, <1.3uVrms @G=H
    CHANNEL CROSSTALK @1kHz 
SE IN/SE OUT:-106dB
    BAL IN/SE OUT:-102dB
    SE IN/BAL OUT:-105dB
    BAL IN/BAL OUT:-102dB
    IMD CCIF @(18kHz+19kHz) SE IN/SE OUT:-118dB
    BAL IN/SE OUT:-118dB
    SE IN/BAL OUT:-118dB
    BAL IN/BAL OUT:-118dB
    IMD SMPTE @(60kHz+7kHz) SE IN/SE OUT:-110dB@SMPTE4: 1, -115dB@SMPTE1: 1
    BAL IN/SE OUT:-110dB@SMPTE4: 1, -115dB@SMPTE1: 1
    SE IN/BAL OUT:-110dB@SMPTE4: 1, -115dB@SMPTE1: 1
    BAL IN/BAL OUT:-110dB@SMPTE4: 1, -115dB@SMPTE1: 1
    INPUT SENSITIVITY SE IN/SE OUT:9.5uVrms @G=L, 8.8uVrms @G=M, 2.9uVrms @G=H
    BAL IN/SE OUT:9.5uVrms @G=L, 8.8uVrms @G=M, 2.9uVrms @G=H
    SE IN/BAL OUT:9.5uVrms @G=L, 8.8uVrms @G=M, 2.9uVrms @G=H
    BAL IN/BAL OUT:9.5uVrms @G=L, 8.8uVrms @G=M, 2.9uVrms @G=H
    GAIN SE IN/SE OUT:-9.5dB @G=L, 0dB @G=M, 9.5dB @G=H
    BAL IN/SE OUT:-9.5dB @G=L, 0dB @G=M, 9.5dB @G=H
    SE IN/BAL OUT:-3.5dB @G=L, 6.0dB @G=M, 15.5dB @G=H
    BAL IN/BAL OUT:-3.5dB @G=L, 6.0dB @G=M, 15.5dB @G=H
    OUTPUT IMPEDANCE SE IN/SE OUT:20Ω
    BAL IN/SE OUT:20Ω
    SE IN/BAL OUT:40Ω
    BAL IN/BAL OUT:40Ω
    IN THE BOX
    BOX CONTENTS 1. TOPPING A90
    2. AC Cable
    3. 6.35mm to 3.5mm Connector
    4. User Manual
    5. Warranty Card


    Headphone-Zone-TOPPING-D50s

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    COMPARISONS

    		 TOPPING - A90 vs competitors
    TOPPING - A90 TOPPING - A90 vs competitors
    ₹ 44,999/-

    		TOPPING - D70vs competitors
    TOPPING - D70 TOPPING - D70 vs competitors
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    		Aune Audio - S7 Provs competitors
    Aune Audio - S7 Pro Aune Audio - S7 Pro vs competitors
    ₹ 45,999/-

    		iFi Audio - xDSDvs competitors
    iFi Audio - xDSD iFi Audio - xDSD vs competitors
    ₹ 34,990/- ₹ 39,999/-

    Warranty
    Ideal For Desktop Desktop Desktop Smartphone & Desktop
    Weight 3.49kg 1.9kg 127g
    DAC Chip AKM AK4497 Burr Brown DSD1793
    Sample Rate 32-bit/768kHz
    Inbuilt Battery
    Battery Life 10 Hours
    Balanced Outputs
    Outputs XLR & RCA 6.35mm & XLR 3.5mm
    Digital Inputs USB
    Output level 500mW @ 16 Ohm
    Signal to Noise Ratio 127dB 124dB
    Bluetooth Version V5.0
    Bluetooth Codecs LDAC, aptX LL, aptX HD, aptX, AAC & SBC aptX & AAC
    MQA Support
    Volume Control
    Expert Verdict "Considering the price point that Topping went with unit, proud to announce that A90 receives my highest recommendation as being the one of the most complete sounding amplifier at a very attractive price!"
    Sound News     		"At just $500 I consider it a really nice unit that can compete with much pricier designs and I have no complaints in terms of its sonic performance."
    Sound News     		"The Aune Audio S7 PRO impressed me dearly with every musical genre I thrown at it. It was impressive with sensitive IEMs and harder to drive headphones alike."
    Head-Fi     		The xDSD is a very modern design and well-built portable amp/DAC and a confident freshman release for their new X-Series range.The xDSD has created a new path for iFi and an important one at that.
    Headfonics

    Warranty & Media Reviews

    1 Year Warranty

    Don't sweat it, this TOPPING A90 comes with a 1 year warranty on the Amp/DAC and 6 months warranty on the battery. TOPPING's warranty covers all manufacturing defects. All products featured on Headphone Zone are backed by an original manufacturer's warranty.

    Read more about TOPPING's warranty in India.

    IGN

    HEADFONIA RECOMMENDED AWARD

    Headfonia
    July, 2020

    Headfonics

    "The A90 simply removes itself from the playback experience and provides absolute fidelity from the musical source directly to your transducers."

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    Major HiFi

    "Considering the price point that Topping went with unit, proud to announce that A90 receives my highest recommendation as being the one of the most complete sounding amplifier at a very attractive price!"

    Read More

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