TONEWINNER AD-1PA+ Class A Power Amplifier Silver

TONEWINNER AD-1PA+ Power Amplifier Class A Stereo 2x300W 8 Ohm
Powerful Class A stereo power amplifier, the Tonewinner AD-1PA+ benefits from a high quality balanced architecture that allows it to develop significant power while ensuring a dynamic and precise sound reproduction. Its careful and intelligent integration, proof of the attention paid by the brand to their product, results in a powerful and musical device, respecting the audio signal to reveal every detail.

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Shipping date: 25-04-2024.

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Tonewinner AD-1PA+

Power Amplifier Stereo Class A 2x300W 8Ω

Tonewinner AD-1PA Amplificateur stéréo Class A 2x300W 8 Ohm

Tonewinner's AD-1PA is back in a "+" version with an optimized circuitPowerful Class A stereo power amplifier, the Tonewinner AD-1PA+ benefits from a high quality balanced architecture that allows it to develop significant power while ensuring a dynamic and precise sound reproduction. Its careful and intelligent integration, proof of the attention paid by the brand to their product, results in a powerful and musical device, respecting the audio signal to reveal every detail.

Tonewinner AD-1PA Amplificateur stéréo Class A 2x300W 8 Ohm

A Class A amplifier as powerful as it is efficient

The amplifier stage of the Tonewinner AD-1PA+ embeds 8 pairs of high power transistors TTC5200 and TTA1943 within a Class A. These allow the amplifier to deliver a consequent power of 300W RMS per channel under 8Ω.

Tonewinner AD-1PA Amplificateur stéréo Class A 2x300W 8 Ohm Tonewinner AD-1PA Amplificateur stéréo Class A 2x300W 8 Ohm

Class A/AB switch

The Tonewinner AD-1PA+ has three operating modes: Class A, Class AB or Auto. A switch allows you to select the most suitable mode according to your needs and your installation. The Auto mode automatically switches from Class A to Class AB when the temperature of the unit reaches a certain limit and switches back to Class A if the temperature drops.

Bi-wiring possibility

With its dual speaker terminals, the Tonewinner AD-1PA+ offers the possibility of bi-wiring. This method of connecting to speakers can offer an improvement in sound quality by reducing the magnetic interactions of the cables.

Tonewinner AD-1PA Amplificateur stéréo Class A 2x300W 8 Ohm

A large power supply

In order to deliver such a power, the Tonewinner AD-1PA+ is equipped with a large power supply, including a high performance toroidal transformer of no less than 1200W. 16 large filter capacitors with a total capacity of 180,000µF ensure a clean and stable electrical signal. In addition, the left and right channels are independently power supplied.

Perfect isolation

The internal design of the AD-1PA+ has been thought to physically separate the different sections of the device and thus ensure a very good isolation. This design effectively limits interference and noise.

Tonewinner AD-1PA Amplificateur stéréo Class A 2x300W 8 Ohm

Technical characteristics

Specifications
Product typePower amplifier
ChannelsStereo (2)
Amplification typeClass A
Class AB
Inputs1* Single-ended stereo RCA
1* Balanced stereo XLR
OutputsSpeaker terminals
TriggerInput and output
Output power300W RMS/channel @ 8Ω, 20Hz-20kHz, THD < 0.1%, two driven channels
500W RMS/channel @ 4Ω, 20Hz-20kHz, THD < 0.1%, one driven channel
320W RMS/channel @ 8Ω, THD < 0.1%, one driven channel
Pure class A output power100W @ 8Ω
Impedance8Ω
Channel separation≥ 80dB
Bias selectionClass A
Class AB
Auto
Speaker output modeA
B
A+B
Frequency response10Hz-100kHz (+1/-3dB)
THD+N< 0.008% @ 1kHz
SNR≥ 108dB (A-weighted)
Recommended minimum load impedance (per channel)2Ω
Damping factor> 200 @ 8Ω
Input sensitivity1.6V @ rated power, 8Ω
Gain29.5dB ±1dB
General
Supply voltage110-240V AC 50/60Hz
Dimensions444*294*449
Net weight43.4kg
Housing materialAluminum
ColorBlack and silver
Package1* Tonewinner AD-1PA+
1* Power cable
 
Data sheet
InputRCA
InputXLR
OutputSpeaker terminal
ColorSilver
ColorBlack
Channel2 (Stereo)
ClassClass A / AB
Amplifier chipTransistors
Power (W)300.0
Remote ControlNo
 
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Average votes
5.0 / 5
3 reviews
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 5/5
Date :
Excellent
Première écoute déconcertante tellement c’est détaillé sur tout la bande passante avec superbe image stéréo tant en largeur (180° sur certains morceaux) qu’en profondeur (+ étagement des plans).

Je retrouve effectivement tous les attributs cités dans l’article de Remusic.

Les instruments / voix se détachent distinctement (effet 3D) dans l’espace sonore.
Les basses sont amples, profondes, moelleuses et timbrées.
Médiums transparents, avec de la matière.
Aigus naturels, fins et cristallins qui semblent flotter en haut du mur du fond sur certains enregistrements.
Le tout dans une cohésion impeccable.

Ampli réactif au secteur (ligne dédiée symétrisée Gigawatt chez moi + terre indépendante) et donc au câble d’alimentation.
Le meilleur chez moi étant pour l’instant un Tunami V2 Shuko Charlin et IEC C004 pour une belle articulation (particulièrement dans le bas), rapidité et neutralité générales.
Sensible également au support (Finite Element Spider dont un avantage est d’être totalement ouvert pour refroidissement naturel)).

Le résultat me satisfait beaucoup (en classe A pure (bien chaud mais sans surchauffe), mais aussi en mode automatique (tiède)) et me fait oublier mes anciens amplis dont un à + de 13000€.
Difficile à accepter ? L’évidence est là pour moi.
Aucune fatigue à l’écoute, au demeurant très agréable et d’autant plus intéressante qu’on peut y percevoir les particularités des enregistrements.
Venant du monde studio pro, j’aurais pu le prendre en ampli d’écoute principale.

Environ 300 heures d'écoute au moment de cet avis, sur Streamer Antipodes EX (Switch ethernet Uptone) + Ayon Stealth en Dac / pré-ampli, et Harbeth M40.2 en HP avec connectique générale (XLR et RCA) Driade Flow 808 et secteur avec Amadeus (panachage FI-E48 et 50R + Charlin). Pièce d’écoute dédiée de 40m2 légèrement traitée en acoustique.

L’aspect résolvant et neutre de cet ampli révèlera la qualité de votre système en amont.

Et comme toujours, superbe qualité / rapidité de service / envoi d’Audiophonics. Bravo !
 (2)
 (0)
This review has been posted for TONEWINNER AD-1PA+ Power Amplifier Class A Stereo 2x300W 8 Ohm Silver
Note :
 5/5
Date :
Really a very rare winner; excellent in Class A.
There is a review on Remusic in Italian. Use google translate and you will read the same as i did before i purchased this device. Now i have it and have listened to it for a couple of days i can only say this is a Best Kept Secret Device. Very rare winner. In Class A it is perfect. When used in combination with real hifi devices it does nothing wrong. You sit front row, projection of music is real live experience. All in Class A. Strong and deep Bass. No glare in the high frequencies. Voices are real life voices. Great resolution and wonderfull transparancy. And all this voor 3.400 euro. Remusic compared it with Viola Symphony amplifier. 25.000 euro device beginning this century. I compare it with Coda 16.0, Mcintosh MC 1.25 KW and also a Audreal PA Class A amplifier. This Tonewinner doesn't blush with these competitors. My pre-amplifier is a Accuphase C 3900, AVM PA 8.3 or a Mcintosh C 1100. Loudspeakers BW 801 D4, Chario Academy Serendipity and several others. On all speakers it is doing very well. Really a rare winner. Use a ventilator to cool it down; in Class A it gets very hot. When using in auto configuration it changes very quickly in AB. You miss the Class A experience. Buy it. You will not regret it.
 (1)
 (0)
This review has been posted for TONEWINNER AD-1PA+ Power Amplifier Class A Stereo 2x300W 8 Ohm Silver
Note :
 5/5
Date :
Really a very rare winner; excellent in Class A.
This is a real rare winner. Secret tip. Excellent in Class A. Gets really hot, so i use a ventilator, very silent, to cool it down somewhat. Sound is very clear and clean. Sound picture is first row, but with big, huge and deep soundstage. Great resolution and magnificent transparancy. I play with very expensive devices, but this Tonewinner is worth the money and more. Review on Remusic is bull's eye review. The Tonewinner AD=1PA+ is really comparable with the viola symphony and worth the TAD loudspeakers. Sound is really very vivid and live like. Oncoloured. Deep Bass and no glare. Perfect voices. You can hear the effect of the 60 amperes and more than 200 damping factor. Total controle of speakers. I use BW 801 D4 and the Accuphase C-3900 and MCD 12000. Cumulus 3Tspeaker cables. The Tonewinner does not degrade these devices. Best kept secret.
 (1)
 (0)
This review has been posted for TONEWINNER AD-1PA+ Power Amplifier Class A Stereo 2x300W 8 Ohm Silver
 
TONEWINNER AD-1PA+ Power Amplifier Class A Stereo 2x300W 8 Ohm Silver
Powerful Class A stereo power amplifier, the Tonewinner AD-1PA+ benefits from a high quality balanced architecture that allows it to develop...

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