Topping A90 Balanced Headphone Amplifier Black

Topping A90 Balanced Headphone Amplifier Silver

Topping A90 Balanced Headphone Amplifier

Topping A90 Balanced Headphone Amplifier

Name: Topping A90 Balanced Headphone Amplifier
Brand: TOPPING
SKU: TOP.A90.BK
Price: 789.0 AUD
Availability: OutOfStock
Rating: 5.0 (2 reviews)

TOPPINGSKU: TOP.A90.BK

Price:

$789

*Check with our team or your local store for availability.

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Australian sourced stock, with full local warranty.

Topping challenges the whole market of headphone amplifiers with its A90 : an exceptional performance desktop headphone amplifier / preamplifier. With a SINAD up to 123dB (measured by Audio Science Review) on its balanced output and an incredibly low distortion of 0.000086%, the A90 significantly expands the boundaries of what most advanced home audio equipment can offer.

Balanced & single-ended connectivity
Topping A90 has a stereo balanced input XLR 3-pole and an single-ended input stereo RCA connector on its rear face . It offers a balanced (XLR) / single--ended (RCA) as preamplified output.

The connectors dedicated to the headphone amplifier are located on the front panel. A90 has all the connections necessary to easily connect headphones / IEM with various characteristics and requirements: a balanced output on XLR 4-pole connector, a second balanced output on jack TRRS 4.4mm connector Balanced headphone outputs are capable of delivering a power of 250mW and have an output impedance of 0135 ?.

Finally tthe frontpanel offers an unbalanced output on 6.35mm connector with a power output of 125mW.

Volume control, source selection / outputs
The preamplifier / headphone amplifier A90 provides a volume control through a rotary knob directly accessible from its facade.

On its front side, three selectors allow easy control of all the device functions to immediately find the best configuration for your setup.

A first selector allows selecting the output mode and can switch between preamplifier mode and headset amplifier mode. These two modes can not be active simultaneously. This switch is also used to turn off the device.

A second bipolar selector serves as source selection and allows the user to select between balanced and single-ended input. It is therefore possible to connect two separate devices on each of these inputs and use the A90 as simple source selector.

The last selector is a gain control with three levels (low gain / medium gain / high gain) to get the best performance according to your sources and the type of headphones used.

It's a great companion of active monitors stacked with D90 DAC when A90 work as pre-amp application.
Full balanced and SE headphone output
A90 is provided with a wide range of adaptation to headphones
A90 is equipped with three gain settings of -9.5dB/ 0dB / 9.5dB for SE and -35dB / 6.0dB / 15.5dB for balanced

Headphone Amplifier Specifications
THD+N @ 1kHz (A-weighted)	Single-ended Input & Single-ended Output
	<0.00007% @ 500mW (32Ω) <0.00006% @ 80mW (300Ω)
	Balanced Input & Single-ended Output
	<0.00009% @ 500mW (32Ω) <0.00006% @ 80mW (300Ω)
	Single-ended Input & Balanced Output
	<0.00007% @ 2000mW (32Ω) <0.00006% @ 320mW (300Ω)
	Balanced Input & Balanced Output
	<0.00009% @ 2000mW (32Ω) <0.00006% @ 320mW (300Ω)
THD+N @ 20-20kHz 90kBW	Single-ended Input & Single-ended Output
	<0.00004% @ 500mW (32Ω) <0.00001% @ 80mW (300Ω)
	Balanced Input & Single-ended Output
	<0.00004% @ 500mW (32Ω) <0.00001% @ 80mW (300Ω)
	Single-ended Input & Balanced Output
	<0.00004% @ 2000mW (32Ω) <0.00001% @ 320mW (300Ω)
	Balanced Input & Balanced Output
	<0.00004% @ 2000mW (32Ω) <0.00001% @ 320mW (300Ω)
SNR @ Max Out 1kHz (A-weighted)	Single-ended Input & Single-ended Output
	141dB
	Balanced Input & Single-ended Output
	137dB
	Single-ended Input & Balanced Output
	145dB
	Balanced Input & Balanced Output
	138dB
Dynamic range @ Max Out 1kHz (A-weighted)	Single-ended Input & Single-ended Output
	141dB
	Balanced Input & Single-ended Output
	137dB
	Single-ended Input & Balanced Output
	145dB
	Balanced Input & Balanced Output
	138dB
Frequency Response	Single-ended Input & Single-ended Output
	20Hz-40kHz (±0.05dB)
	Balanced Input & Single-ended Output
	20Hz-40kHz (±0.01dB)
	Single-ended Input & Balanced Output
	20Hz-40kHz (±0.05dB)
	Balanced Input & Balanced Output
	20Hz-40kHz (±0.01dB)
Output level	Single-ended Input & Single-ended Output
	9Vpp @ Gain = low 25Vpp @Gain = medium 25Vpp @Gain = high
	Balanced Input & Single-ended Output
	9Vpp @ Gain = low 25Vpp @Gain = medium 25Vpp @Gain = high
	Single-ended Input & Balanced Output
	18Vpp @ Gain = low 49Vpp @Gain = medium 49Vpp @Gain = high
	Balanced Input & Balanced Output
	18Vpp @ Gain = low 49Vpp @Gain = medium 49Vpp @Gain = high
Noise level (Audio Precision / A-weighted)	Single-ended Input & Single-ended Output
	<0.7uVrms @ Gain = low <0.7uVrms @ Gain = medium <0.9uVrms @ Gain = high
	Balanced Input & Single-ended Output
	<0.7uVrms @ Gain = low <0.7uVrms @ Gain = medium <0.9uVrms @ Gain = high
	Single-ended Input & Balanced Output
	<0.9uVrms @ Gain = low <0.9uVrms @ Gain = medium <1.4uVrms @ Gain = high
	Balanced Input & Balanced Output
	<0.9uVrms @ Gain = low <0.9uVrms @ Gain = medium <1.4uVrms @ Gain = high
Noise level (Extrapolation / A-weighted)	Single-ended Input & Single-ended Output
	<0.2uVrms @ Gain = low <0.2uVrms @ Gain = medium <0.6uVrms @ Gain = high
	Balanced Input & Single-ended Output
	<0.2uVrms @ Gain = low <0.2uVrms @ Gain = medium <0.6uVrms @ Gain = high
	Single-ended Input & Balanced Output
	<0.6uVrms @ Gain = low <0.6uVrms @ Gain = medium <1.3uVrms @ Gain = high
	Balanced Input & Balanced Output
	<0.6uVrms @ Gain = low <0.6uVrms @ Gain = medium <1.3uVrms @ Gain = high
Crosstalk @ 1kHz	Single-ended Input & Single-ended Output
	-106dB
	Balanced Input & Single-ended Output
	-102dB
	Single-ended Input & Balanced Output
	-105dB
	Balanced Input & Balanced Output
	-105dB
IMD CCIF @ 18kHz +19kHz	Single-ended Input & Single-ended Output
	-118dB
	Balanced Input & Single-ended Output
	-118dB
	Single-ended Input & Balanced Output
	-118dB
	Balanced Input & Balanced Output
	-118dB
IMD SMPTE @ 60Hz +7kHz	Single-ended Input & Single-ended Output
	-110dB @ SMPTE4 : 1 -115dB @ SMPTE1 : 1
	Balanced Input & Single-ended Output
	-110dB @ SMPTE4 : 1 -115dB @ SMPTE1 : 1
	Single-ended Input & Balanced Output
	-110dB @ SMPTE4 : 1 -115dB @ SMPTE1 : 1
	Balanced Input & Balanced Output
	-110dB @ SMPTE4 : 1 -115dB @ SMPTE1 : 1
Input sensitivity	Single-ended Input & Single-ended Output
	9.5Vrms @ Gain = low 8.8Vrms @ Gain = medium 2.9Vrms @ Gain = high
	Balanced Input & Single-ended Output
	9.5Vrms @ Gain = low 8.8Vrms @ Gain = medium 2.9Vrms @ Gain = high
	Single-ended Input & Balanced Output
	9.5Vrms @ Gain = low 8.8Vrms @ Gain = medium 2.9Vrms @ Gain = high
	Balanced Input & Balanced Output
	-110dB @ SMPTE4 : 1 -115dB @ SMPTE1 : 1
Gain	Single-ended Input & Single-ended Output
	-9.5dB @ Gain = low 0dB @ Gain = medium 9.5dB @ Gain = high
	Balanced Input & Single-ended Output
	-9.5dB @ Gain = low 0dB @ Gain = medium 9.5dB @ Gain = high
	Single-ended Input & Balanced Output
	-3.5dB @ Gain = low 6dB @ Gain = medium 15.5dB @ Gain = high
	Balanced Input & Balanced Output
	-3.5dB @ Gain = low 6dB @ Gain = medium 15.5dB @ Gain = high
Output impedance	Single-ended Input & Single-ended Output
	<0.1Ω
	Balanced Input & Single-ended Output
	<0.1Ω
	Single-ended Input & Balanced Output
	<0.2Ω
	Balanced Input & Balanced Output
	<0.2Ω
Output power	Single-ended Input & Single-ended Output
	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%
	Balanced Input & Single-ended Output
	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%
	Single-ended Input & Balanced Output
	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%
	Balanced Input & Balanced Output
	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	Single-ended Input & Single-ended Output
	>8Ω
	Balanced Input & Single-ended Output
	>8Ω
	Single-ended Input & Balanced Output
	>8Ω
	Balanced Input & Balanced Output
	>8Ω
Preamplifier Specs
THD+N @ 1kHz (A-weighted)	Single-ended Input & Single-ended Output
	<0.00006%
	Balanced Input & Single-ended Output
	<0.00006%
	Single-ended Input & Balanced Output
	<0.00006%
	Balanced Input & Balanced Output
	<0.00006%
THD+N @ 20-20kHz 90kBW	Single-ended Input & Single-ended Output
	<0.0001%
	Balanced Input & Single-ended Output
	<0.0001%
	Single-ended Input & Balanced Output
	<0.0001%
	Balanced Input & Balanced Output
	<0.0001%
SNR @ Max Out 1kHz (A-weighted)	Single-ended Input & Single-ended Output
	141dB
	Balanced Input & Single-ended Output
	137dB
	Single-ended Input & Balanced Output
	145dB
	Balanced Input & Balanced Output
	138dB
Plage dynamique @ Max Out 1kHz (A-weighted)	Single-ended Input & Single-ended Output
	141dB
	Balanced Input & Single-ended Output
	137dB
	Single-ended Input & Balanced Output
	145dB
	Balanced Input & Balanced Output
	138dB
Frequency Response	Single-ended Input & Single-ended Output
	20Hz-40kHz (±0.05dB)
	Balanced Input & Single-ended Output
	20Hz-40kHz (±0.01dB)
	Single-ended Input & Balanced Output
	20Hz-40kHz (±0.05dB)
	Balanced Input & Balanced Output
	20Hz-40kHz (±0.01dB)
Output level	Single-ended Input & Single-ended Output
	9Vpp @ Gain = bas 25Vpp @Gain = moyen 25Vpp @Gain = haut
	Balanced Input & Single-ended Output
	9Vpp @ Gain = bas 25Vpp @Gain = moyen 25Vpp @Gain = haut
	Single-ended Input & Balanced Output
	18Vpp @ Gain = bas 49Vpp @Gain = moyen 49Vpp @Gain = haut
	Balanced Input & Balanced Output
	18Vpp @ Gain = bas 49Vpp @Gain = moyen 49Vpp @Gain = haut
Noise level (Audio Precision / A-weighted)	Single-ended Input & Single-ended Output
	<0.7uVrms @ Gain = bas <0.7uVrms @ Gain = moyen <0.9uVrms @ Gain = haut
	Balanced Input & Single-ended Output
	<0.7uVrms @ Gain = bas <0.7uVrms @ Gain = moyen <0.9uVrms @ Gain = haut
	Single-ended Input & Balanced Output
	<0.9uVrms @ Gain = bas <0.9uVrms @ Gain = moyen <1.4uVrms @ Gain = haut
	Balanced Input & Balanced Output
	<0.9uVrms @ Gain = bas <0.9uVrms @ Gain = moyen <1.4uVrms @ Gain = haut
Noise level (Extrapolation / A-weighted)	Single-ended Input & Single-ended Output
	<0.2uVrms @ Gain = bas <0.2uVrms @ Gain = moyen <0.6uVrms @ Gain = haut
	Balanced Input & Single-ended Output
	<0.2uVrms @ Gain = bas <0.2uVrms @ Gain = moyen <0.6uVrms @ Gain = haut
	Single-ended Input & Balanced Output
	<0.6uVrms @ Gain = bas <0.6uVrms @ Gain = moyen <1.3uVrms @ Gain = haut
	Balanced Input & Balanced Output
	<0.6uVrms @ Gain = bas <0.6uVrms @ Gain = moyen <1.3uVrms @ Gain = haut
Crosstalk @ 1kHz	Single-ended Input & Single-ended Output
	-106dB
	Balanced Input & Single-ended Output
	-102dB
	Single-ended Input & Balanced Output
	-105dB
	Balanced Input & Balanced Output
	-102dB
IMD CCIF @ 18kHz +19kHz	Single-ended Input & Single-ended Output
	-118dB
	Balanced Input & Single-ended Output
	-118dB
	Single-ended Input & Balanced Output
	-118dB
	Balanced Input & Balanced Output
	-118dB
IMD SMPTE @ 60Hz +7kHz	Single-ended Input & Single-ended Output
	-110dB @ SMPTE4 : 1 -115dB @ SMPTE1 : 1
	Balanced Input & Single-ended Output
	-110dB @ SMPTE4 : 1 -115dB @ SMPTE1 : 1
	Single-ended Input & Balanced Output
	-110dB @ SMPTE4 : 1 -115dB @ SMPTE1 : 1
	Balanced Input & Balanced Output
	-110dB @ SMPTE4 : 1 -115dB @ SMPTE1 : 1
Input sensitivity	Single-ended Input & Single-ended Output
	9.5Vrms @ Gain = bas 8.8Vrms @ Gain = moyen 2.9Vrms @ Gain = haut
	Balanced Input & Single-ended Output
	9.5Vrms @ Gain = bas 8.8Vrms @ Gain = moyen 2.9Vrms @ Gain = haut
	Single-ended Input & Balanced Output
	9.5Vrms @ Gain = bas 8.8Vrms @ Gain = moyen 2.9Vrms @ Gain = haut
	Balanced Input & Balanced Output
	9.5Vrms @ Gain = bas 8.8Vrms @ Gain = moyen 2.9Vrms @ Gain = haut
Gain	Single-ended Input & Single-ended Output
	-9.5dB @ Gain = bas 0dB @ Gain = moyen 9.5dB @ Gain = haut
	Balanced Input & Single-ended Output
	-9.5dB @ Gain = bas 0dB @ Gain = moyen 9.5dB @ Gain = haut
	Single-ended Input & Balanced Output
	-3.5dB @ Gain = bas 6dB @ Gain = moyen 15.5dB @ Gain = haut
	Balanced Input & Balanced Output
	-3.5dB @ Gain = bas 6dB @ Gain = moyen 15.5dB @ Gain = haut
Output impedance	Single-ended Input & Single-ended Output
	20Ω
	Balanced Input & Single-ended Output
	20Ω
	Single-ended Input & Balanced Output
	40Ω
	Balanced Input & Balanced Output
	40Ω

A90 Balanced Headphone Amplifier
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6.35mm to 3.5mm Connector
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Topping A90 Balanced Headphone Amplifier

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Headphone Amplifier Specifications

Preamplifier Specs

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