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TOPPING L70 Balanced NFCA Headphone Amplifier / Preamplifier Black

With the L70, Topping offers a highly engineered balanced NFCA headphone amplifier and preamplifier combo that delivers excellent sonic performance and is suitable for a wide range of use scenarios. Whether you are using demanding headphones, high sensitivity IEMs, or pairing with a power amplifier, the L70 is the ideal ally for pure, rich, dynamic listening.

Average votes for this product
5.0 / 5
  Based on 3 customers reviews.

By buying this product you get 27 loyalty points


Reference : 16950
New product

279,00 €tax incl.

232,50 € tax excl.
Including 0,05 € for green tax

- +

 
Shipping date: 06-02-2026.

Orders placed before 12h (GMT+1) will generally be shipped the same day (working day).

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2 Years warranty
 
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Topping L70

Balanced NFCA Headphone Amplifier / Preamplifier Black

Topping L70 Amplificateur Casque NFCA / Préamplificateur Symétrique Noir

With the L70, Topping offers a highly engineered balanced NFCA headphone amplifier and preamplifier combo that delivers excellent sonic performance and is suitable for a wide range of use scenarios. Whether you are using demanding headphones, high sensitivity IEMs, or pairing with a power amplifier, the L70 is the ideal ally for pure, rich, dynamic listening.

Topping L70 Amplificateur Casque NFCA / Préamplificateur Symétrique Noir

L70

L50

L30 II

A30 Pro

A90 Discrete

Structure

Balanced

Single-ended

Single-ended

Single-ended

Balanced

Amplifier

NFCA

NFCA

NFCA

NFCA

Discrete NFCA

Inputs

Single-ended + Balanced

Single-ended + Balanced

Single-ended

Single-ended + Balanced

Single-ended + Balanced

Outputs

Jack 6.35mm
Jack 4.4mm
XLR 4 pins

Jack 6.35mm
XLR 4 pins

Jack 6.35mm

Jack 6.35mm
Jack 4.4mm
XLR 4 pins

Jack 6.35mm
Jack 4.4 mm
XLR 4 pins

Preamplifier

Yes

No

Yes

No

Yes

Smart independent outputs

Yes

No

No

No

No

Bypass

No

Yes

No

Yes

No

Gain

Single-ended output : 0/13.8dB
Balanced output : 6/19.8dB

-14 / 0 / 14dB

-14 / 0 / 16.5dB

-14 / 0 / 14dB

Single-ended output : 0/9.5dB
Balanced output : 6/15.5dB

Single-ended output power

2* 3500mW (16 Ohm)

2* 3400mW (16 Ohm)

2* 3500mW (16 Ohm)

2* 6000mW (16 Ohm)

2* 3300mW (16 Ohm)

Puissance symétrique

2* 6000mW (16 Ohm)

-

-

-

2* 9800mW (16 Ohm)

Impédance sortie asymétrique

< 0.1 Ohm

< 0.1 Ohm

< 0.1 Ohm

< 0.1 Ohm

< 0.1 Ohm

High performance NFCA amplifier modules

The L70 uses the same NFCA (Nested Feedback Composite Amplifier) module as the A90. Its hybrid voltage/current feedback architecture combined with UHGF (Ultra High Gain Feedback) technology offers excellent DC and AC performance, extremely low THD+N and an incredibly high dynamic range of 146dB. In addition, the L70 has a high output current and a very low output impedance and noise level, allowing it to drive the vast majority of headphones on the market, including the most demanding models.

Topping L70 Amplificateur Casque NFCA / Préamplificateur Symétrique Noir

Multiple headphone outputs

The L70 is compatible with most headphone connectors. It integrates a balanced XLR 4 pins, a balanced 4.4mm jack and an single-ended 6.35mm jack. The on-board balanced amplifier circuitry is suitable for both balanced and single-ended headphones. In addition, its high output voltage and current as well as its low output impedance allow it to accompany sensitive headphones and high-impedance headphones without difficulty.

Topping L70 Amplificateur Casque NFCA / Préamplificateur Symétrique Noir

Two levels of gain

The Topping L70 provides two levels of gain to cover most needs of different headphones.

Single-ended output : Low gain : 6.0dB / High gain : 19.8dB

Balanced output : Low gain : 0dB / High gain : 13.8dB

Preamplifier function

The L70 is not only capable of driving headphones but can also be used as a preamplifier. In this mode you get the same performance as with the headphone amplifier and the single-ended 20Ω and balanced 40Ω output impedances allow compatibility with many amplifiers. In addition, the L70 comes with a remote control for convenient control.

Custom volume control

Using an R2R volume control composed of relays and a resistor network, the L70 ensures a precise adjustment, a great durability and a perfect balancing of the channels. It also incorporates a memory for the volume and gain level according to 8 profiles that can be customized according to the connected equipment.

Topping L70 Amplificateur Casque NFCA / Préamplificateur Symétrique Noir

Ground loop eliminator

A ground loop can occur when multiple devices are used together. The L70 has a GND/LIFT switch to solve this problem. In normal use, simply set it to the GND position. When a ground loop is encountered, select LIFT mode to eliminate the ground loop.

12V Trigger

The L70 integrates a 12V trigger with active (trigger output) and passive (trigger input) control. With only a simple 3.5mm jack cable, the Topping L70 can be switched on and off in sync with your other equipment with a 12V trigger interface.

Topping L70 Amplificateur Casque NFCA / Préamplificateur Symétrique Noir
Topping L70 Amplificateur Casque NFCA / Préamplificateur Symétrique Noir
1ON-OFF / Input selector button
2Balanced XLR 4 pins headphone output
3Balanced Jack 4.4mm headphone output
4Single-ended Jack 6.35mm headphone output
5Volume button
6Single-ended stereo XLR / Jack 6.35mm combo input
7Single-ended stereo RCA input
8Single-ended stereo RCA output
9Balanced stereo XLR output
1012V Trigger input
1112V Trigger output
12Ground loop elimination switch
13Firmware update port
14Power connector
15Power switch

Technical characteristics

Specifications
Product typeHeadphone amplifier
Preamplifier
Inputs1x Balanced stereo Jack 6.35mm / XLR combo
1x Single-ended stereo RCA
Outputs1x Balanced stereo XLR
1x Single-ended stereo RCA
1x Balanced XLR 4 pins headphone output
1x Balanced Jack 4.4mm headphone output
1x Single-ended Jack 6.35mm headphone output
AmplifierNFCA
Headphone amplifier measurements
SE IN / SE OUTBAL IN / SE OUTSE IN / BAL OUTBAL IN / BAL OUT
THD+N @ 1kHz (A-wt)< 0.00006% @ 500mW, 32Ω
< 0.000055% @ 80mW, 300Ω		< 0.00007% @ 500mW, 32Ω
< 0.000065% @ 80mW, 300Ω		< 0.00006% @ 2000mW, 32Ω
< 0.000055% @ 320mW, 300Ω		< 0.00007% @ 2000mW, 32Ω
< 0.000065% @ 320mW, 300Ω
THD @ 20Hz-20kHz (90kBw)< 0.00008% @ 500mW, 32Ω
< 0.00007% @ 80mW, 300Ω		< 0.00015% @ 500mW, 32Ω
< 0.00015% @ 80mW, 300Ω		< 0.00009% @ 2000mW, 32Ω
< 0.00008% @ 320mW, 300Ω		< 0.0002% @ 2000mW, 32Ω
< 0.00015% @ 320mW, 300Ω
SNR @ Max Out, 1kHz (A-wt)143dB138dB146dB139dB
Dynamic range @ 1kHz (A-wt)143dB138dB146dB139dB
Frequency response10Hz-100kHz (±0.1dB)10Hz-100kHz (±0.5dB)10Hz-100kHz (±0.1dB)10Hz-100kHz (±0.5dB)
Output level26vpp26Vpp52Vpp52Vpp
AP Measured noise level (A-wt)< 0.7µVrms @ G=L
< 1.2µVrms @ G=H		< 0.7µVrms @ G=L
< 1.2µVrms @ G=H		< 0.9µVrms @ G=L
< 2.2µVrms @ G=H		< 0.9µVrms @ G=L
< 2.2µVrms @ G=H
Effective noise level* (A-wt)< 0.3µVrms @ G=L
< 1.1µVrms @ G=H		< 0.3µVrms @ G=L
< 1.1µVrms @ G=H		< 0.7µVrms @ G=L
< 2.2µVrms @ G=H		< 0.4µVrms @ G=L
< 2.2µVrms @ G=H
Crosstalk @ 1kHz-104dB-104dB-120dB-120dB
Input sensitivity9.6Vrms @ G=L
1.9Vrms @ G=H		9.6Vrms @ G=L
1.9Vrms @ G=H		9.6Vrms @ G=L
1.9Vrms @ G=H		9.6Vrms @ G=L
1.9Vrms @ G=H
Gain0dB @ G=L
13.8dB @ G=H		0dB @ G=L
13.8dB @ G=H		6dB @ G=L
19.8dB @ G=H		6dB @ G=L
19.8dB @ G=H
Output impedance< 0.1Ω< 0.1Ω< 0.2Ω< 0.2Ω
Output power2* 3500mW @ 16Ω, THD+N < 0.1%
2* 2300mW @ 32Ω, THD+N < 0.1%
2* 1200mW @ 64Ω, THD+N < 0.1%
2* 290mW @ 300Ω, THD+N < 0.1%		2* 6000mW @ 16Ω, THD+N < 0.1%
2* 7500mW @ 32Ω, THD+N < 0.1%
2* 4700mW @ 64Ω, THD+N < 0.1%
2* 1150mW @ 300Ω, THD+N < 0.1%
2* 600mW @ 600Ω, THD+N < 0.1%
Load impedance> 8Ω
Preamplifier measurements
SE IN / SE OUTBAL IN / SE OUTSE IN / BAL OUTBAL IN / BAL OUT
THD+N @ 1kHz (A-wt)< 0.000055%< 0.00006%< 0.000055%< 0.00006%
THD @ 20Hz-20kHz (90kBw)< 0.00007%< 0.00015%< 0.00008%< 0.00015%
SNR @ 1kHz (A-wt)143dB138dB146dB139dB
Dynamic range @ 1kHz (A-wt)143dB138dB146dB139dB
Frequency response10Hz-100kHz (±0.1dB)10Hz-100kHz (±0.5dB)10Hz-100kHz (±0.1dB)10Hz-100kHz (±0.5dB)
Output level26vpp26Vpp52Vpp52Vpp
AP Measured noise level (A-wt)< 0.7µVrms @ G=L
< 1.2µVrms @ G=H		< 0.7µVrms @ G=L
< 1.2µVrms @ G=H		< 0.9µVrms @ G=L
< 2.2µVrms @ G=H		< 0.9µVrms @ G=L
< 2.2µVrms @ G=H
Effective noise level* (A-wt)< 0.3µVrms @ G=L
< 1.1µVrms @ G=H		< 0.3µVrms @ G=L
< 1.1µVrms @ G=H		< 0.7µVrms @ G=L
< 2.2µVrms @ G=H		< 0.4µVrms @ G=L
< 2.2µVrms @ G=H
Crosstalk @ 1kHz-104dB-104dB-120dB-120dB
Input sensitivity9.6Vrms @ G=L
1.9Vrms @ G=H		9.6Vrms @ G=L
1.9Vrms @ G=H		9.6Vrms @ G=L
1.9Vrms @ G=H		9.6Vrms @ G=L
1.9Vrms @ G=H
Gain0dB @ G=L
13.8dB @ G=H		0dB @ G=L
13.8dB @ G=H		6dB @ G=L
19.8dB @ G=H		6dB @ G=L
19.8dB @ G=H
Output impedance20Ω20Ω40Ω40Ω
*The effective noise level is obtained by boosting the noise of the L70 by 40dB using a low noise amplifier before the APx555B then dividing the measured noise by 100.
General
ColorBlack
Dimensions200*138*44mm
Package1x Topping L70
1x Remote control
1x Jack 6.35mm to Jack 3.5mm adapter
1x Power cable
 
Data sheet
InputRCA
InputXLR
InputJack 6.35mm
OutputXLR
OutputJack 4.4mm
OutputRCA
OutputJack 6.35mm
ColorBlack
ClassClass D / T
Remote ControlYes
 
Delivery

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Average votes
5.0 / 5
3 reviews
Why write products reviews ?
You can share your feelings about products and help other people by sharing your experience

Note :
 5/5
Date :
Transparent and convenient line-level preamplifier
I am delighted with my Topping L70. To my ears it is completely transparent, making no change to the sound of my audio system. I use it as a remote controlled line-level preamplifier (I do not have headphones). I have connected my SMSL D300 dac to the XLR input and my Denon TU-210 FM tuner to the RCA input. I have connected the XLR output to the TRS input of my Topping PA5 II amplifier. Using the remote control, I can now switch between inputs and adjust the volume from across the room without leaving my seat. I can also use the remote control to put the Topping L70 in and out of standby, with the added convenience that the 12V trigger connection places the Topping PA5 II in and out of standby at the same time. The centralised volume control provided by the Topping L70 has also allowed me to disable the volume controls in my dac and in my FIIO SR11 streamer, which makes overall operation simpler. The Topping L70 remains cool in operation. Its build quality is reassuringly excellent. It perfectly suits my particular use case, and so I am happy to offer this five-star review.
 (0)
 (0)
This review has been posted for TOPPING L70 Balanced NFCA Headphone Amplifier / Preamplifier Black
Note :
 5/5
Date :
TOPPING L70 et SHENNHEISER HD650
Au bout d'une vingtaine d'heures de rodage du L70 le résultat est parfait.
 (0)
 (1)
This review has been posted for TOPPING L70 Balanced NFCA Headphone Amplifier / Preamplifier Black
Note :
 5/5
Date :
Topping L70
Very fine pre amp...
 (1)
 (0)
This review has been posted for TOPPING L70 Balanced NFCA Headphone Amplifier / Preamplifier Black
See more reviews 
 
TOPPING L70 Balanced NFCA Headphone Amplifier / Preamplifier Black
TOPPING L70 Balanced NFCA Headphone Amplifier / Preamplifier Black
With the L70, Topping offers a highly engineered balanced NFCA headphone amplifier and preamplifier combo that delivers excellent sonic performance...

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