{"@context":"https://schema.org","@type":"Product","productID":"381521077","name":"Topping PA5 Fully Balanced Power Amplifer 140w×2 TRS×2 Input Speaker Terminal Output Class D Power Amp HiFi Amplifiers (Black)","brand":{"@type":"Brand","name":"Dilvpoetry"},"description":"TOPPING PA5 Parameters Measured: 16.6cm×12.9cm×4.1cm Weight: 0.68kg Power input: DC38V/4.0A Signal inputs: BAL1(TRS)、BAL2(TRS) Signal output: Speaker terminal (BTL output) Display: LED Standby power consumption: <0.1W PA5 Power Amplifier specifications THD+N@1kHz(A-wt): <0.0005%@4Ω 5W; <0.0004%@8Ω 5W THD+N@No-wt (20kBW): <0.0015%@4Ω 5W; <0.0006%@8Ω 5W SNR@A-wt: 124dB Dynamic Range@A-wt: 124dB Frequency Response: 20Hz-40kHz (±0.3dB) Output Level: 65Vpp@RL=4Ω; 68Vpp@RL=8Ω Noise@A-wt: <16uVrms Channel Crosstalk@1kHz: -106dB Input sensitivity: 2.6Vrms Gain: 19.1dB Channel Balance: 0.1dB Output Impedance: <0.01Ω Output Power: 140W×2@4Ω THD+N<10% 125W×2@4Ω THD+N<1% 85W×2@8Ω THD+N<10% 65W×2@8Ω THD+N<1% Adapter Impedance: 3-8Ω Note: The above data is the result of the test in TOPPING laboratory under AC220V 50Hz condition. Accessories 1 × PA5 1 × Power adaptor 1 × Power cable 1 × User manual 1 × Warranty card","image":["https://m.media-amazon.com/images/I/51UKv6ldzmL.jpg","https://m.media-amazon.com/images/I/61zGW2I8ayL.jpg","https://m.media-amazon.com/images/I/51g5o4nsqKL.jpg","https://m.media-amazon.com/images/I/61HgIdqmUeL.jpg","https://m.media-amazon.com/images/I/51InjF+yAIL.jpg","https://m.media-amazon.com/images/I/51k4VeqcABL.jpg","https://m.media-amazon.com/images/I/61BI+Esn6JL.jpg","https://m.media-amazon.com/images/I/61uJN3QRqNL.jpg"],"offers":{"@type":"Offer","priceCurrency":"USD","price":"1148.96","itemCondition":"https://schema.org/NewCondition","availability":"https://schema.org/InStock","shippingDetails":{"deliveryTime":{"@type":"ShippingDeliveryTime","minValue":17,"maxValue":17,"unitCode":"d"}}},"category":" receiversandamplifiers","review":[{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"M***I"},"datePublished":"Reviewed in the United States on May 2, 2022","name":"If the power is enough for your speakers, you may have found your last amp.","reviewBody":"The sound is just what is on the recording or the stream without any additional noise or distortion. If you look at the Audio Science Review, you will see the amp is among the very best available for a clean, transparent sound. Wonderful highs, without any glare. Deep, controlled bass. Simple to use. Occupies a minimal amount of space. I use it to drive Polk LSiM 703 bookshelf speakers to very loud volumes in a room 20 x 20. (Sensitivity is listed as 88dB.)Sound is superior to Cambridge Audio, Rega Brio, and a whole series of Class D amps I have tried.Cons - no remote, pretty plain looking - it's not going to knock your audiophile friends' socks off (at least until they hear it). May not be enough power to drive floorstanders or very inefficient speakers.Recommended without reservation, especially considering the price. On sale, it's about the same price I paid for a Marantz 1060 fifty years ago. We really do live in a golden age for electronics."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"D***D"},"datePublished":"Reviewed in the United States on June 19, 2022","name":"Great compact amplifier delivering transparent audio","reviewBody":"This amplifier is a compact, transparent amplifier. It's a perfect fit for a moderate desktop or bookshelf stereo system. I use it to drive mid-sensitivity Polk R200 bookshelf speakers in my studio, and it does the job perfectly. If you want a stereo amplifier that doesn't add any color to your sound, this amp is a great fit.The amp is a bit overly simple and opinionated with only balanced TRS inputs, however I have tried single-ended input with RCA to TRS single-ended adapters and it works fine. An auto-on/off feature is also missing, which would have been nice to have.Pros:- Plenty of power.- Transparent audio output.- Compact with no heat issues and no fans.- Nice feeling volume knob.- Good build quality.Cons:- No auto on or off feature.- Large proprietary power brick.- Only accepts balanced TRS input, requiring additional adapters from most other equipment.My order was sold by Aoshida, and they have so far provided great service."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"2.0"},"author":{"@type":"Person","name":"D***K"},"datePublished":"Reviewed in the United States on April 19, 2022","name":"Would not work, parent company Apos did not respond","reviewBody":"Hooked this up with a Topping DAC and got no sound. Contacted support after checking and triple checking all connections. Reached out twice to Apos through 2 different modes, no response in over a week. Thus returning the equipment and going with something else.Like others, found it on ASR, but really becoming less of a fan of that site"},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"3.0"},"author":{"@type":"Person","name":"C***N"},"datePublished":"Reviewed in the United States on April 3, 2022","name":"A letdown...","reviewBody":"The PA5 got great reviews from pundits at audiosciencereview, and I was quite excited to give it a try. However I have problems with it. When I turn the volume up on my preamp (reasonable volume, btw, not overly loud), one of my speakers would suddenly go silent. Sometimes it's the left speaker and sometimes it's the right speaker. When I put my ear very close to the speaker that lost sound, I can hear that it is not completely silent, but the sound is attenuated very significantly. If I power cycle the PA5 when this happens, sound would come back to the speaker, but after a short time, the problem would occur again. So it doesn't appear to be a problem with the rest of my setup, but the PA5 itself. I think it has some design issues. Either that, or the particular unit was defective. So I have no choice but to return it. This is a letdown and I hope the company can diagnose the issue on the unit I returned. If this is just a defective unit, I'm eager to give the product a second try and revise my review accordingly."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"A***R"},"datePublished":"Reviewed in the United States on February 2, 2022","name":"Amazing power and features","reviewBody":"I am in love with this amplifier. For too long have I been wanting a matching stack which includes a balanced input to a power amplifier - and one with its own volume knob is even more welcome.There's plenty of power, and dual (switchable!) balanced inputs really makes this a top-tier desktop amplifier for a bargain of a price. Goodbye ground loops! I can even hook up the balanced output from my audio interface to play instruments through my desktop speakers with no extra equipment.The amp sounds wonderful, and the matching E50/L50 components make a gorgeous, performant stack."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"M***."},"datePublished":"Reviewed in the United States on May 6, 2022","name":"Clean Class D Power","reviewBody":"This is the best Class D amp I have heard. Rivals some class AB amps. If you buy this, you will need to purchase balanced TRS cables and/or adapters. My only gripe is that the adapters should be included."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"3.0"},"author":{"@type":"Person","name":"B***Y"},"datePublished":"Reviewed in the United States on April 7, 2022","name":"The power supply can't put out the rated power.","reviewBody":"It is rated at 140 watts per channel at 10% distortion that ywould be 280 watts total. The power supply is only rated for 152 watts. It wn' start up under a heavy lard, you have to turn down the volume control and then turn it back up."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"M***E"},"datePublished":"Reviewed in the United States on January 14, 2022","name":"Excellent little amp","reviewBody":"Clear and powerful sound from the Topping PA5! The older tower speakers in my office sound remarkably fresh and clean. Arrived earlier than expected from seller Aoshida HiFi-US. First learned of this little amp from Audio Science Review."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"D***N"},"datePublished":"Reviewed in the United Kingdom on April 16, 2022","name":"Fantastic amp","reviewBody":"Great amp, may cost a bit more than some of the cheaper ones but the sound is excellent. Currently driven by my D90 dac and my A90 as a preamp"},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"4.0"},"author":{"@type":"Person","name":"E***B"},"datePublished":"Reviewed in Italy on February 10, 2022","name":"Suona benissimo……ma","reviewBody":"Preciso che lo sto restituendo. La qualità sonora è da massimo punteggio, ma il problema, che anche qualche altra recensione aveva fatto notare, è il livello della potenza in uscita.Mi ero fidato non solo dalle recensioni, ma anche perché avevo già acquistato un Topping D50s che mi sta dando ottima soddisfazione.Appena arrivato il PA5 ho cercato di collegarlo al P50s e qua il primo problema. Non sono compatibili perché il primo ha SOLO ingressi bilanciati ed il secondo uscite stereo normali. Così ho comperato dei cavi che da RCA convertono in TS. Collegato tutto alle mie Sonus Faber da 8Ohm il risultato qualitativo è stato in linea con le mie aspettative, ma con la potenza massima che sicuramente non è superiore a 20W contro gli 85W@8Ohm dichiarati. La controprova l’ho fatta sostituendo il PA5 con un poco pretenzioso e datato Pioneer A207R che dichiara 35W@8Ohm, pur mantenendo tutti gli altri componenti la potenza in uscita è decisamente superiore.Unico dubbio, e qui ammetto la mia ignoranza, forse usare una uscita RCA convertita in TS perde livello di tensione sul segnale trasferito? 0-picco contro picco-picco. Non so, lo restituisco mal volentieri perché suona veramente bene, ma tutti quei soldi per meno di 20W in Classe D non mi va di spenderliHo avuto uno scambio di informazioni con il venditore, che mi hanno portato a cambiare da 2 a 4 la valutazione complessiva.Mi è stato confermato che il problema della bassa potenza in uscita deriva dal fatto di non aver usato un DAC con uscita bilanciata, per cui, oltre ad una minore (forse) qualità, si perde segnale, come avevo già ipotizzato. La stella in meno rimane perché non è possibile che Topping abbia fatto 2 prodotti qualitativamente ottimi ed ovviamente non economici…..ma non compatibili tra loro"},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"A***O"},"datePublished":"Reviewed in Italy on April 27, 2022","name":"Gioiello","reviewBody":"Ottimo prodotto, dalle foto non si chi rende conto di quanto sia piccolo e leggero, suona magnificamente, credo sia obbligatorio collegarlo tramite un dac che abbia uscita bilanciata, sconsiglio adattatori per uscire RCA tradizionali. Un piccolo gioiello!"},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"A***ー"},"datePublished":"Reviewed in Japan on December 8, 2021","name":"toppingの力作","reviewBody":"海外の有名サイトにて非常に良好な測定値で話題となっているアンプです。当方も興味を惹かれて購入しました。ケース、スイッチ、ボリュームの感触は良好でしっかりしてます。感心したのがACアダプタで、38Vを扱う安全性に配慮した脱落防止のネジ止め式になっています。この辺りが激安品と一味違うところですね。ポップノイズ対策も充分されているようで音楽再生中に入力をガチャガチャ切り替えたり、電源をオンオフしても全く問題ありません。大きめの放熱穴があいているので発熱が気になるところですが、ほんのり暖かくなる程度です。音はバーンイン不足なので主観の第一印象のみになりますが、中低域に厚みがあり、ボーカルや高音域は明瞭でありながらほんの少し柔らかい感じに聞こえます。まとまりがあり、音場や定位なども自然です。ホワイトノイズは皆無で静寂感などは大変に素晴らしいと思います。聴き疲れしない音で自分はかなり気に入ったのですが、最近は他社の低価格アンプも相当レベルが高く満足度の高い音質ですのでコスパ的には微妙と感じます。使い勝手はリモコンやトーンコントロール、RCA入力があったほうがずっと良いですしね。なのでこの値段が許容できるコダワリの貴方にオススメします。"},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"1.0"},"author":{"@type":"Person","name":"C***0"},"datePublished":"Reviewed in France on February 16, 2022","name":"Son très clair et détaillé - Mais defaillant au bout de 3 mois ...","reviewBody":"J ai cet ampli Topping PA5 depuis une semaine associé a un DAC Topping E30 avec des anciennes enceintes colonnes JBL Xti 80. Le son est très clair et détaillé dans tous les registres. Il remplace en stéréo avec succès un ampli AVR Yamaha RVX 475. J en suis tres satisfait pour le moment.Le seul léger point négatif est qu' il n'y a pas de mode standby automatique. Il consomme 7w en permanence si on ne l'éteint pas.Mise a jour au 4 Mai 2022 : Depuis ce jour, il y a un fort bruit de fond sur le canal gauche. L'ampli est inutilisable. Je vais essayer faire fonctionner la garantie.Apparement, de nombreux utilisateurs ont le meme problème avec ce produit Topping ( cf forum Audio Science Review )"}],"aggregateRating":{"@type":"AggregateRating","ratingValue":4.076923076923077,"bestRating":5,"ratingCount":13}}