TOPPING LA90D Discrete Amplifier Class AB 2x120W / 1x180W 4 Ohm Black

TOPPING LA90D Discrete Amplifier Class AB 2x120W / 1x180W 4 Ohm Black
Topping now offers the excellent LA90 in a version using discrete circuits, the LA90 Discrete. The result is a powerful amplifier with incredible metering for a breathtaking listening experience. The new NFCA discrete amplifier circuitry ensures extremely clear and precise sound reproduction. The amplifier has the same features as the first LA90, with mono or stereo operation, adjustable gain and a combined balanced input connector for 6.35mm jack or XLR.

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Reference : 17500
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Shipping date: 03-05-2024.

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Topping LA90D

Discrete Amplifier Class AB 2x120W / 1x180W 4 Ohm Black

TOPPING LA90D Amplificateur Discret Class AB 2x120W / 1x180W 4 Ohm Noir

Topping now offers the excellent LA90 in a version using discrete circuits, the LA90 Discrete. The result is a powerful amplifier with incredible metering for a breathtaking listening experience. The new NFCA discrete amplifier circuitry ensures extremely clear and precise sound reproduction. The amplifier has the same features as the first LA90, with mono or stereo operation, adjustable gain and a combined balanced input connector for 6.35mm jack or XLR.

TOPPING LA90D Amplificateur Discret Class AB 2x120W / 1x180W 4 Ohm Noir

A robust and massive chassis

The LA90 Discrete is clad in a precision CNC machined aluminum chassis. This enclosure gives the amplifier a modern design while effectively protecting the components of the unit. The sides of the LA90 Discrete have large heat sinks, allowing the heat emitted by the internal electronics to be effectively dissipated.

TOPPING LA90D Amplificateur Discret Class AB 2x120W / 1x180W 4 Ohm Noir

High power & Low distortion

The THD+N of the LA90 Discrete is extremely low, measured at less than 0.0001% under 4/8Ω 5W. These performances allow it in fact an accurate reproduction of the source signal.

TOPPING LA90D Amplificateur Discret Class AB 2x120W / 1x180W 4 Ohm Noir

Balanced inputs

The LA90 Discrete provides three balanced inputs. The inputs have a combined format, allowing the use of both XLR and Jack 6.35mm TRS cables. In addition, three connectors allow the unit to be used in mono mode.

Topping LA90 Amplificateur 2x90W 4Ω / 1x180W 8Ω Noir
Topping LA90 Amplificateur 2x90W 4Ω / 1x180W 8Ω Noir

Two levels of gain

To accommodate the vast majority of audio systems, including the most demanding, the LA90 Discrete offers two levels of adjustable gain. The first, Low Gain, offers a gain of +9.4dB in stereo or +15.4dB in mono, while the second, High Gain, provides a gain of +19.4dB in stereo or +25.4dB in mono.

Mono & Stereo

The Topping LA90 Discrete can be configured and wired to operate in either stereo or mono mode, with the combination of two LA90Ds then providing higher power. When used in mono mode, the minimum impedance is 4Ω.

TOPPING LA90D Amplificateur Discret Class AB 2x120W / 1x180W 4 Ohm Noir

Volume control

The volume of the LA90 Discrete can be adjusted with the large front panel knob. It is also possible to bypass the volume control of the LA90 Discrete in order to combine it with a HiFi preamplifier. The latter is useful for synchronizing the volume of two LA90 Discrete in mono mode.

TOPPING LA90D Amplificateur Discret Class AB 2x120W / 1x180W 4 Ohm Noir
TOPPING LA90D Amplificateur Discret Class AB 2x120W / 1x180W 4 Ohm Noir

12V Trigger

The Topping LA90 Discrete is equipped with a 12V trigger input and output. It can thus be connected to other devices and allow an automatic switch on and off of them.

Technical characteristics

Specifications
Product typeDiscrete amplifier
Inputs3x Combined Jack 6.35mm TRS / XLR
OutputsSpeaker terminals
Measurements
ParameterStereoMono
THD+N @ 1kHz (A-wt)< 0.00009% @ 4Ω 5W< 0.0002% @ 4Ω 5W
< 0.00009% @ 8Ω 5W< 0.0001% @ 8Ω 5W
THD+N @ 20Hz-20kHz, 90kBw (A-wt)< 0.0005% @ 4Ω 5W< 0.0007% @ 4Ω 5W
< 0.0003% @ 8Ω 5W< 0.0005% @ 8Ω 5W
SNR @ A-Weighting141dB143dB
Dynamic range @ A-Weighting141dB143dB
Frequency response20Hz-40kHz (±0.2dB)20Hz-40kHz (±0.2dB)
10Hz-100kHz (±0.4dB)10Hz-100kHz (±0.4dB)
Output level51Vpp @ 4Ω80Vpp @ 4Ω
58Vpp @ 8Ω106Vpp @ 8Ω
Noise @ A-Weighting< 1.8µVrms @ G=L< 2.5µVrms @ G=L
< 3.4µVrms @ G=H< 4.8µVrms @ G=H
Channel crosstalk @ 1kHz-138dB-
Input sensitivity7.3Vrms @ G=L6.9Vrms @ G=L
2.2Vrms @ G=H2.2Vrms @ G=H
Gain9.44dB @ G=L15.4dB @ G=L
19.4dB @ G=H25.4dB @ G=H
Channel balance0.2dB-
Output impedance< 3mΩ< 5mΩ
Output power2x 120W @ 4Ω THD+N < 10%1x 180W @ 4Ω THD+N < 1%
2x10W @ 4Ω THD+N < 1%
2x 66W @ 8Ω THD+N < 10%1x 220W @ 8Ω THD+N < 10%
2x 56W @ 8Ω THD+N < 1%1x 180W @ 8Ω THD+N < 1%
Load impedance≥ 4Ω≥ 4Ω
General
Dimensions220*205*90mm
ColorBlack
Package1x Topping LA90D
1x Power supply
1x Speaker jumper cable
 
Data sheet
InputJack 6.35mm
InputXLR
OutputSpeaker terminal
ColorBlack
Channel1 (Mono)
Channel2 (Stereo)
ClassClass A / AB
Amplifier chipNFCA
Power (W)180.0
Power (W)120.0
Remote ControlNo
 
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Average votes
5.0 / 5
3 reviews
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 5/5
Date :
Vielen Dank an das Audiophonics Team!
Seit 35Jahren ist HiFi für mich ein Hobby. Viele Geräte sind seit dem gekommen und auch wieder über den Gebrauchtmarkt gegangen. Was soll man sagen? Ab und zu braucht man
halt wieder was neues … Dieses Mal sollte es ein Class D Amp werden um in meinen langen
Hörsitzungen nicht so viel Strom zu verbrauchen. So groß würden meiner Meinung nach die Unterschiede nicht sein wenn man doch nur die Endstufe tauscht …dachte ich. Doch nach dem Audiophonics mir 2 verschiedene Class D Endstufen geschickt hatte wollte ich schnell wieder meine alte Endstufe zurück … doch die war bereits verkauft. Dann sind 2 von diesen kleinen LA 90 d angekommen … Und jetzt bin ich wieder sehr glücklich mit dem Klang in meinem System. Die Maximale Lautstärke ist sowieso nicht wichtig für mich und nur wenn es laut sein soll sind hier Abstriche zu machen … klar mit den kleinen Verstärkern kann man keine Bäume ausreißen. Einen LA 90 d würde ich nicht für Lautsprecher unter 88dB empfehlen … Und zwei auch nicht für Lautsprecher unter 86 dB Wirkungsgrad. Ansonsten können die alles was ein Verstärker um 5000 Euro kann … die Frage ist also nur wieviel möchten Sie ausgeben? Wie laut hören Sie? Und welche Lautsprecher haben Sie?
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This review has been posted for TOPPING LA90D Discrete Amplifier Class AB 2x120W / 1x180W 4 Ohm Black
Note :
 5/5
Date :
Excellent ampli
Ampli acheté pour ses performances S/B car utilisé sur un tweeter à ruban Viawave. Promesse tenue ! Avant cela, je l'ai testé sur mes enceintes DIY TWW, charge 2Ohm et il n'a pas bronché, même en poussant le volume, qui en passant, est suffisant, il n'est pas aussi "faiblard" qu'on semble le suggérer. En comparaison avec mes Class D Purifi (+ Sparkos), la différence est très subtile mais c'est le petit qui gagne. Je le recommande pour des enceintes avec un rendement confortable et certainement pour une utilisation dans un système actif avec des HP de la plus haute qualité.
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This review has been posted for TOPPING LA90D Discrete Amplifier Class AB 2x120W / 1x180W 4 Ohm Black
Note :
 5/5
Date :
The last amp you'll ever need
You know why you're here.
You've seen the measurements.
You know what this is amp is capable of - especially in bridged mode.

Is it expensive? Kind of.
Is it expensive compared to all the ultra expensive voodoo amps out there? No, it's actually a steal.

Go grab it and be happy ever after.


No but really, so far I bought two of them. Absolutely incredible clean sound - no frequency dependend distortion!

Only thing left to see is reliability, but this amp didn't even get remotely warm in my first week of usage. So I expect it to last decades, at least.
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This review has been posted for TOPPING LA90D Discrete Amplifier Class AB 2x120W / 1x180W 4 Ohm Black
 
TOPPING LA90D Discrete Amplifier Class AB 2x120W / 1x180W 4 Ohm Black
Topping now offers the excellent LA90 in a version using discrete circuits, the LA90 Discrete. The result is a powerful amplifier with incredible...

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