Topping A70 Pro Balanced Headphone Amplifier

Topping A70 Pro Balanced Headphone Amplifier

Name: Topping A70 Pro Balanced Headphone Amplifier
Brand: TOPPING
SKU: TOP.A70PRO.BK
Price: 979.0 NZD
Availability: InStock

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$979

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All New T'ang-ku-la Amplifier Module

T'ang-ku-la translates to 'a mountain that an eagle cannot fly over', the source of the Yangtze River. It symbolizes our spirit of climbing the peak of ultimate performance. This module uses a new three-stage feedback circuit. Further reducing noise and high frequency distortion, making the dynamic range rise to an unmatched 147dB. The new technology greatly reduces heat generation, thus greatly improving reliability, extending electronic component life, and reducing thermal noise.

Re-optimized New Circuit Architecture
Newly developed ultra-noise input stage further improved the noise performance of balanced input and increased the input impedance to 20kΩ thus having better compatibility with incoming devices.

Ground Loop Noise Disappearing Magic
When multiple devices are used in combination, ground loop noise may be encountered. A70 Pro adds a GND/LIFT switch, when ground loop noise is encountered switched to LIFT and the noise will disappear.

Aurora UI Brings A New Experience
Full color screen and three touch buttons bring a changed experience. Display of playback information, FFT or VU meters can be switched according to your requirements.

Relay Volume Control
A70 Pro uses relays and resistor networks to form R2R volume control module, which providing precise volume control, long service life, and will not deviate even at low volume.

New T'ang-ku-la amplifier module
Ground/Lift switch
Full color display with all-new Aurora UI
Relay volume control
Independent volume memory

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Headphone Amplifier Specifications
THD+N @ 1kHz (A-weighted)	Single-ended Input & Single-ended Output
	<0.000065% @ 500mW (32Ω) <0.000055% @ 80mW (300Ω)
	Balanced Input & Single-ended Output
	<0.000065% @ 500mW (32Ω) <0.000055% @ 80mW (300Ω)
	Single-ended Input & Balanced Output
	<0.000065% @ 500mW (32Ω) <0.000055% @ 80mW (300Ω)
	Balanced Input & Balanced Output
	<0.000065% @ 500mW (32Ω) <0.000055% @ 80mW (300Ω)
THD+N @ 20-20kHz 90kBW	Single-ended Input & Single-ended Output
	<0.00006% @ 500mW (32Ω) <0.00005% @ 80mW (300Ω)
	Balanced Input & Single-ended Output
	<0.00006% @ 500mW (32Ω) <0.00006% @ 80mW (300Ω)
	Single-ended Input & Balanced Output
	<0.00006% @ 2000mW (32Ω) <0.00005% @ 320mW (300Ω)
	Balanced Input & Balanced Output
	<0.00006% @ 2000mW (32Ω) <0.00005% @ 320mW (300Ω)
SNR @ Max Out 1kHz (A-weighted)	Single-ended Input & Single-ended Output
	143dB
	Balanced Input & Single-ended Output
	140dB
	Single-ended Input & Balanced Output
	147dB
	Balanced Input & Balanced Output
	142dB
Dynamic range @ Max Out 1kHz (A-weighted)	Single-ended Input & Single-ended Output
	143dB
	Balanced Input & Single-ended Output
	143dB
	Single-ended Input & Balanced Output
	147dB
	Balanced Input & Balanced Output
	142dB
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
	28Vpp @ Gain = low 27.6Vpp @Gain = high
	Balanced Input & Single-ended Output
	27.2Vpp @ Gain = low 27.6Vpp @Gain = high
	Single-ended Input & Balanced Output
	56Vpp @ Gain = low 54Vpp @Gain = high
	Balanced Input & Balanced Output
	54Vpp @ Gain = low 54Vpp @Gain = high
Noise level (Audio Precision / A-weighted)	Single-ended Input & Single-ended Output
	<0.7uVrms @ Gain = low <1.0uVrms @ Gain = high
	Balanced Input & Single-ended Output
	<0.7uVrms @ Gain = low <1.0uVrms @ Gain = high
	Single-ended Input & Balanced Output
	<0.9uVrms @ Gain = low <1.9uVrms @ Gain = high
	Balanced Input & Balanced Output
	<0.9uVrms @ Gain = low <1.9uVrms @ Gain = high
Noise level (Extrapolation / A-weighted)	Single-ended Input & Single-ended Output
	<0.2uVrms @ Gain = low <0.8uVrms @ Gain = high
	Balanced Input & Single-ended Output
	<0.2uVrms @ Gain = low <0.8uVrms @ Gain = high
	Single-ended Input & Balanced Output
	<0.6uVrms @ Gain = low <1.8uVrms @ Gain = high
	Balanced Input & Balanced Output
	<0.6uVrms @ Gain = low <1.8uVrms @ Gain = high
Crosstalk @ 1kHz	Single-ended Input & Single-ended Output
	-123dB
	Balanced Input & Single-ended Output
	-124dB
	Single-ended Input & Balanced Output
	-122dB
	Balanced Input & Balanced Output
	-133dB
Input sensitivity	Single-ended Input & Single-ended Output
	9.8Vrms @ Gain = low 2.0Vrms @ Gain = high
	Balanced Input & Single-ended Output
	10.3Vrms @ Gain = low 2.0Vrms @ Gain = high
	Single-ended Input & Balanced Output
	9.8Vrms @ Gain = low 1.8Vrms @ Gain = high
	Balanced Input & Balanced Output
	-110dB @ SMPTE4 : 1 -115dB @ SMPTE1 : 1
Gain	Single-ended Input & Single-ended Output
	0dB @ Gain = low 13.8dB @ Gain = high
	Balanced Input & Single-ended Output
	0dB @ Gain = low 13.8dB @ Gain = high
	Single-ended Input & Balanced Output
	6dB @ Gain = low 13.9dB @ Gain = high
	Balanced Input & Balanced Output
	6dB @ Gain = low 19.8dB @ 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 Output
	6000mW x 2 @ 16Ω THD+N<0.1% 3000mW x 2 @ 32Ω THD+N<0.1% 330mW x 2 @ 300Ω THD+N<0.1% 165mW x 2 @ 600Ω THD+N<0.1%
	Balanced Input & Single-ended Output
	Balanced Output
	17000mW x 2 @ 16Ω THD+N<0.1% 12600mW x 2 @ 32Ω THD+N<0.1% 1370mW x 2 @ 300Ω THD+N<0.1% 6700mW 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
	<0.00055%
	Balanced Input & Single-ended Output
	<0.000055%
	Single-ended Input & Balanced Output
	<0.000055%
	Balanced Input & Balanced Output
	<0.000055%
THD+N @ 20-20kHz 90kBW	Single-ended Input & Single-ended Output
	<0.00005%
	Balanced Input & Single-ended Output
	<0.00005%
	Single-ended Input & Balanced Output
	<0.00005%
	Balanced Input & Balanced Output
	<0.00005%
SNR @ Max Out 1kHz (A-weighted)	Single-ended Input & Single-ended Output
	143dB
	Balanced Input & Single-ended Output
	140dB
	Single-ended Input & Balanced Output
	147dB
	Balanced Input & Balanced Output
	142dB
Dynamic Range @ Max Out 1kHz (A-weighted)	Single-ended Input & Single-ended Output
	143dB
	Balanced Input & Single-ended Output
	140dB
	Single-ended Input & Balanced Output
	147dB
	Balanced Input & Balanced Output
	142dB
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
	28Vpp @ Gain = low 27.6Vpp @Gain = high
	Balanced Input & Single-ended Output
	28Vpp @ Gain = low 27.6pp @Gain = high
	Single-ended Input & Balanced Output
	56Vpp @ Gain = low 54Vpp @Gain = high
	Balanced Input & Balanced Output
	54Vpp @ Gain = low 54Vpp @Gain = high
Noise level (Audio Precision / A-weighted)	Single-ended Input & Single-ended Output
	<0.7uVrms @ Gain = low <1.0uVrms @ Gain = high
	Balanced Input & Single-ended Output
	<0.7uVrms @ Gain = low <1.0uVrms @ Gain = high
	Single-ended Input & Balanced Output
	<0.9uVrms @ Gain = low <1.9uVrms @ Gain = high
	Balanced Input & Balanced Output
	<0.9uVrms @ Gain = low <1.1.9uVrms @ Gain = high
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
	-119dB
	Balanced Input & Single-ended Output
	-123dB
	Single-ended Input & Balanced Output
	-118dB
	Balanced Input & Balanced Output
	-125dB
Input sensitivity	Single-ended Input & Single-ended Output
	10.3Vrms @ Gain = low 2.0Vrms @ Gain = high
	Balanced Input & Single-ended Output
	9.8Vrms @ Gain = low 2.0Vrms @ Gain = high
	Single-ended Input & Balanced Output
	10.3Vrms @ Gain = low 2.0Vrms @ Gain = high
	Balanced Input & Balanced Output
	9.8Vrms @ Gain = low 2.0Vrms @ Gain = high
Gain	Single-ended Input & Single-ended Output
	0dB @ Gain = low 13.8dB @ Gain = haut
	Balanced Input & Single-ended Output
	0dB @ Gain = low 13.9dB @ Gain = haut
	Single-ended Input & Balanced Output
	6dB @ Gain = low 19.8dB @ Gain = high
	Balanced Input & Balanced Output
	6dB @ Gain = low 19.9dB @ Gain = high
Output impedance	Single-ended Input & Single-ended Output
	50Ω
	Balanced Input & Single-ended Output
	50Ω
	Single-ended Input & Balanced Output
	100Ω
	Balanced Input & Balanced Output
	100Ω

A70 Pro
Remote Control
AC Cable
6.35mm to 3.5mm adaptor
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Topping A70 Pro Balanced Headphone Amplifier

Description

Headphone Amplifier Specifications

Preamplifier Specs

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