TOPPING A30 PRO Headphone Amplifier NFCA Black

NFCA & 10x OPA1656

The A30 Pro takes advantage of the new optimized NFCA circuit to achieve incredible unbalanced performance. The 10 OPA1656 AOPs connected in parallel and the UHGF (Ultra High Gain Feedback) technology ensure excellent AC and DC characteristics. The high current of the Topping A30 Pro allows it to be used with a wide range of headphone models without difficulty. Measured characteristics such as an ultra low noise of only 0.3µV or a dynamic range of 145dB allow the Topping A30 Pro to offer a rich, precise and lively sound reproduction.

A particularly complete connectivity

The Topping A30 Pro offers a complete panel of connectors. We find unbalanced RCA and balanced XLR on the input. On the output side, we find unbalanced RCA but also a balanced output on two pass-through mono 6.35mm jacks, as well as three headphone outputs in balanced 4.4mm jack, balanced XLR 4 pins and unbalanced 6.35mm jack.

Furthermore, in the case of an RCA use with several devices, a GND/LIFT switch allows to cancel the noise that can be generated by ground loops. The LIFT position allows you to use the ground of the connected equipment instead of the A30 Pro.

Finally, we note that in the case of the use of a headphone with an impedance higher than 250Ω, the A30 Pro works in Class A.

Specifications
Product type	Headphone amplifier
Inputs	1x Single-ended stereo RCA 1x Balanced stereo XLR
Outputs	1x Single-ended Jack 6.35mm headphone output 1x Single-ended Jack 4.4mm headphone output 1x Single-ended XLR 4 poles headphone output 1x Single-ended stereo RCA (pass through) 2x Balanced mono Jack 6.35mm (pass through)
THD	0.00009% @ 1kHz
SINAD	121dB
SNR	128dB @ Medium Gain, 4V In/Out 95dB @ Medium Gain, 50mV Out, 600Ω
THD	0.00009% @ 1kHz
Frequency response	10Hz - 30kHz

Specifications

Product type

Headphone amplifier

Inputs

1x Single-ended stereo RCA
1x Balanced stereo XLR

Outputs

1x Single-ended Jack 6.35mm headphone output
1x Single-ended Jack 4.4mm headphone output
1x Single-ended XLR 4 poles headphone output

1x Single-ended stereo RCA (pass through)
2x Balanced mono Jack 6.35mm (pass through)

THD

0.00009% @ 1kHz

SINAD

121dB

SNR

128dB @ Medium Gain, 4V In/Out
95dB @ Medium Gain, 50mV Out, 600Ω

THD

0.00009% @ 1kHz

Frequency response

10Hz - 30kHz

Measurements
	Single-ended input	Balanced input
THD+N @ 1kHz A-Weighting	< 0.00007% @ 3.5W, 32Ω < 0.00006% @ 90mW, 300Ω	< 0.00007% @ 3.2W, 32Ω < 0.00006% @ 86mW, 300Ω
THD @ 20Hz-20kHz 90kBW	< 0.00008% @ 760mW, 32Ω < 0.00007% @ 81mW, 300Ω	< 0.00007% @ 760mW, 32Ω < 0.00007% @ 81mW, 300Ω
SNR @ Max Out, 1kHz, A-Weighting	145dB	140dB
SNR @ 50mV Out, 1kHz	104dB	104dB
Dynamic range @ 1kHz, A-Weighting	145dB	140dB
Frequency response	20Hz-40kHz (±0.05dB)	20Hz-40kHz (±0.1dB)
Output level	34Vpp @ G=L 34Vpp @ G=M 45Vpp @ G=H	6.6Vpp @ G=L 34Vpp @ G=M 45Vpp @ G=H
Noise level @ A-Weighting	< 0.3µVrms @ G=L < 0.3µVrms @ G=M < 0.9µVrms @ G=H	< 0.3µVrms @ G=L < 0.3µVrms @ G=M < 1.1µVrms @ G=H
Crosstalk @ 1kHz	-106dB	-101dB
IMD CCIF @ 18kHz+19kHz	-116dB	-116dB
IMD SMPTE @ 60Hz+7kHz	-110dB @ SMPTE4:1 -115dB @ SMPTE1:1	-110dB @ SMPTE4:1 -116dB @ SMPTE1:1
Input sensitivity	60Vrms @ G=L 12.6Vrms @ G=M 2.7Vrms @ G=H	12.7Vrms @ G=L 12.7Vrms @ G=M 2.7Vrms @ G=H
Gain	-14dB @ G=L 0dB @ G=M 14dB @ G=H	-14dB @ G=L 0dB @ G=M 14dB @ G=H
Output impedance	< 0.1Ω	< 0.1Ω
Output power	2x 6000mW @ 16Ω, THD+N < 0.1% 2x 5500mW @ 32Ω THD+N < 0.1% 2x 840mW @ 300Ω, THD+N < 0.1%

Measurements

Single-ended input

Balanced input

THD+N @ 1kHz A-Weighting

< 0.00007% @ 3.5W, 32Ω
< 0.00006% @ 90mW, 300Ω

< 0.00007% @ 3.2W, 32Ω
< 0.00006% @ 86mW, 300Ω

THD @ 20Hz-20kHz 90kBW

< 0.00008% @ 760mW, 32Ω
< 0.00007% @ 81mW, 300Ω

< 0.00007% @ 760mW, 32Ω
< 0.00007% @ 81mW, 300Ω

SNR @ Max Out, 1kHz, A-Weighting

145dB

140dB

SNR @ 50mV Out, 1kHz

104dB

Dynamic range @ 1kHz, A-Weighting

145dB

140dB

Frequency response

20Hz-40kHz (±0.05dB)

20Hz-40kHz (±0.1dB)

Output level

34Vpp @ G=L
34Vpp @ G=M
45Vpp @ G=H

6.6Vpp @ G=L
34Vpp @ G=M
45Vpp @ G=H

Noise level @ A-Weighting

< 0.3µVrms @ G=L
< 0.3µVrms @ G=M
< 0.9µVrms @ G=H

< 0.3µVrms @ G=L
< 0.3µVrms @ G=M
< 1.1µVrms @ G=H

Crosstalk @ 1kHz

-106dB

-101dB

IMD CCIF @ 18kHz+19kHz

-116dB

IMD SMPTE @ 60Hz+7kHz

-110dB @ SMPTE4:1
-115dB @ SMPTE1:1

-110dB @ SMPTE4:1
-116dB @ SMPTE1:1

Input sensitivity

60Vrms @ G=L
12.6Vrms @ G=M
2.7Vrms @ G=H

12.7Vrms @ G=L
12.7Vrms @ G=M
2.7Vrms @ G=H

Gain

-14dB @ G=L
0dB @ G=M
14dB @ G=H

Output impedance

< 0.1Ω

Output power

2x 6000mW @ 16Ω, THD+N < 0.1%
2x 5500mW @ 32Ω THD+N < 0.1%
2x 840mW @ 300Ω, THD+N < 0.1%

General
Dimensions	174x138x45mm
Net weight	870g
Color	Black
Package	1x Topping A30 Pro 1x Power cable

General

Dimensions

174x138x45mm

Net weight

870g

Color

Black

Package

1x Topping A30 Pro
1x Power cable

Input	XLR
Input	RCA
Output	Jack 6.35mm
Output	XLR
Output	Jack 4.4mm
Output	RCA
Color	Black
Class	N/A
Remote Control	No

Une merveille
Que ce soit sur un dac TDA1541WW Nakamichi DAC101 ou sur un Sabre ESS9018 Breeze modifié, câbles Isoda 08, casque Sony MDR CD3000, cet ampli est non seulement d'une puissance extreme mais aussi d'une transparence et d'un silence sans égal.
Quelles que soient les modifications en amont il les restitue immédiatement avec naturel et richesse de timbre, dynamique sans faille et image sonore ultra précise.

(0)

This review has been posted for TOPPING A30 PRO Headphone Amplifier NFCA Black

A little monster.
Little in size, But a giant in sound.
Drives all my headphones without any problems, even the more difficult with high impedance
The price is unbelievable, considering the quality of the amplifier.
It's not my only headphone amplifier, but it's become a favorite..

(0)

This review has been posted for TOPPING A30 PRO Headphone Amplifier NFCA Black

Véritable 'pépite'...
Ce 'petit' Ampli-Casques est tout simplement sensationnel !
En effet, pour son prix modeste, et en dessous des 800 à 1000 eur, impossible de trouver un ampli capable de 'pousser' mon AKG 340 qui est monstrueusement gourmant en puissance avec ses 2 x 400 Ohms !
Non seulement il arrive à bien 'driver' l'ogre 340 mais en plus la qualité sonore est au Rendez-Vous ! (DAC à 2700 eur en amont tout de même !).
Donc, avec une bonne source vous aurez un grand plaisir d'écoute de TOUS types de casques (3 niveaux de gain) pour un budget abordable. Merci AUDIOPHONICS pour vos produits 'miracles' abordables.

(3)

(0)

This review has been posted for TOPPING A30 PRO Headphone Amplifier NFCA Black