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TOPPING

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.

Please keep the product in its original condition with all accessories & packaging for a successful return. We may contact you to assess the damage or defect before issuing a replacement.

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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.

Please keep the product in its original condition with all accessories & packaging for a successful return. We may contact you to assess the damage or defect before issuing a replacement.

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7 Day Easy Exchange

This product is eligible for the Headphone Zone 7 Day Easy Exchange. Don’t like your purchase? Simply exchange it for another product of your choice!

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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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Headphone-Zone-TOPPING-A90
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Headphone-Zone-TOPPING-A90

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

Headphone-Zone-TOPPING-D50s

COMPARISONS

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

TOPPING - D70vs competitors
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₹ 44,999/-

Aune Audio - S7 Provs competitors
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₹ 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.

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HEADFONIA RECOMMENDED AWARD

Headfonia
July, 2020

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