Questo prodotto ha un'ttima resa sonora considerato il prezzo e le dimensioni. Confrontato con diversi amplificatori che ho in studio di registrazione ha dimostrato di avere delle ottime capacità anche se è un prodotto non professionale. Non è un valvolare a tutti gli stadi. Usa le valvole nello stadio buffer ed il resto è a transistor. Ha un'ottima risposta lineare che lo rende ottimo per l'ascolto. Si possono cambiare le valvole per avere una maggiore qualità del suono. Se non si è esperti evitare di fare esperimenti con le vavole. Lo consiglio perchè non è caro e non è nemmeno una fregatura come molti audiofili sostengono.

I bought this on the strength of reviews, price etc and cos I wanted to try a valve amp. Only after I bought did I see stuff online about it being a "scam" cos its not a real valve amp etc. My heart sank. Then I started listening to it. It's lovely. It sounds nicer than my Rega Elicit I think. It connects to BT very quickly and easily, looks great, nice functionality. I think the negative online stuff must have been because maybe it once marketed itself as a full valve amp instead of hybrid or maybe it's just snotty audiophiles looking at spec rather than sound. I don't care, I really like this amp. Grown very attached to it within a few days. Most other amps get irritating after a while. I can keep this one on all day long and it feels like a log fire is in the room. I was tempted to drop 1 star cos it came with a non UK plug on, but that's a minor issue. I just filched the plug off the fridge freezer and job done.

This item was purchased to replace a mid 80's valve amp separates system and I was a little nervous. I need not have worried, I have only tried it out via bluetooth so far, but it has an amazing sound.

El amplificador tiene un sonido fantástico. No se nota para nada que sólo tiene 10 W de potencia. Por precio y calidad de sonido es un producto muy recomendable para un primer contacto con las vávulas de vacío. Sin embargo, no sé de quién será la culpa (amazon o fabricante), estoy casi seguro que es un artículo de segunda mano. El embalaje, además de estar muy deteriorado por el uso, no se corresponde con el fabricante. El aspecto externo del amplificador es bueno pero las cuatro vávulas de potencia parecen estar ya muy usadas. De momento suena bien pero no sé el tiempo que les queda de vida útil. Estoy enfadado porque yo lo compré pensando que era un producto nuevo.

Tiene un sonido muy bueno. Vengo de un receptor av yamaha para cine y este amplificador no se queda atrás. Sonido cálido, brillante y llena por completo una sala de 30 metros cuadrados. Utilizados con dos altavoces de estanteria klipsch.

Ich gebe zu, daß ich am Anfang etwas skeptisch hinsichtlich der Leistung dieses Vollröhrenverstärkers war. Allerdings waren meine Bedenken völlig unbegründet. Wenn man nicht gerade eine Festhalle beschallen möchte, ist die Leistung völlig ausreichend. Selbst bei höherer Lautstärke ist der Sound noch brillant und wahnsinnig druckvoll. Natürlich hängt dies immer auch von den Boxen ab. Verpackung und Versand waren vorbildlich, die in Betriebnahme völlig problemlos. Tatsächlich riecht er am Anfang, wer noch die alten Röhrenradios kennt, wird den Geruch kennen. Ich finde es nicht weiter störend. Ein Hingucker ist der Kleine allemal. Ich habe die verschiedensten Stile von Klassik (Mahler, Vinyl), Jazz (M. Halsall, Vinyl) über Elektro (DePhazz, CD) bis Metal (Dream Theater, CD) ausprobiert und war aufgrund des druckvollen und differenzierten Klanges begeistert. Transparenz und räumliches Klangbild sind sehr gut, teilweise beeindruckend - vor allem für den Preis. Bei sehr hohen Lautstärken (also hier war dann richtig Rambazamba) wurden die hohen Gitarren dann etwas verzerrt und klirrend dargestellt und der VR-20 kommt an seine Grenzen - wie nicht anders zu erwarten in diesem Preissegment und den aufgerufenen Leistungsparametern. Wer also an die Grenze des erträglichen gehen möchte, sollte dann eine Nummer grösser kaufen (und gleich einen Termin beim HNO vereinbaren;-). Toller Verstärker!

This thing is 89 pounds (I actually payed 66 for "used" which was in condition as new, idk why they are selling them as used, they are in perfect new condition.) This amp for 89 (let alone 60 something) pounds is a total steal!! Heck, balanced cables for this amp cost me more than the amp itself! The sound quality (if you feed it balanced input with XLR and output with balanced output) is terrific. Please don't run it in single ended more, please just don't. It sounds so much better in balanced mode. You don't need an expensive DAC to run in in balanced mode, I use Fiio K3, which is a cheap small portable amp with true balanced output you just need a 2.5mm jack to 2 x XLR cable to make it work with this, and it sounds amazing. When I talk about sound quality here I talk about BALANCED out and BALANCED in, so keep that in mind. (Single ended mode doesn't sound bad tough by any means, imo a lot better than majority of cheap Chinese tube amps). ADVANTAGES: - You can really hear the "tube" sound with this, no question. Sound is rich and warm (Deep lows and buttery mids) with sharp but smooth highs. - Chinese tubes in this amp are actually really good sounding, you don't need to hunt for better tubes, however they do distort quite a bit and they make the sound very "tube like" because of that, some people will not like this. For me they sound great, just like tubes are supposed to sound! - Balanced makes a difference, gives you a lot more power to drive high impedance headphones and you can hear the difference. Please use it in balanced mode. - Amp has appealing and clean design. Body is solid metal with very thick plates on front and back, very well built. - Digital volume control gets a rid of any channel imbalance, very good feature. PROBLEMS: - BLUE LEDs under tubes look so unnatural! If they were red or amber it would look infinitely better. Same for blue LED screen, I think tubes ask for red LEDs in general, it just looks better!!!! and costs nothing... - The "knob" on the front is a digital rotary encoder that controls volume and outputs/inputs. The knob wiggles and is very flimsy. The know will definitely fail, I can already see myself replacing the rotary encoder... I would much prefer analog potenciometer connected to digital volume controller. - Why not put a nice oled screen instead of that hideous blue led screen? It costs pennies and displays a lot more information without burning your eyes to the back of your head. BOTTOMLINE: This is an outstanding amp for the price. You can really hear the "tube sound", it's true balanced, can drive even hardest to drive headphones. The problems I pointed out are just minor issues that don't present any issues with actual sound of it.

Spesa e resa non sempre coincidono, questo è un discorso che vale in molti ambiti, ma nel mondo dell'HiFi è proprio eclatante. Ormai ci sono decine e decine di dac e amplificatori, non per forza made in China, che offrono un suono perfettamente trasparente, con una dinamica infinita e con una potenza erogata sufficiente a muovere tutte (o quasi) le cuffie esistenti. Nell'HiFi si strapagano prodotti che magari suonano in maniera pessima e sono pieni di distorsioni, comunque non sempre percepibili e\o percepite come sgradevoli, anzi.. e qui nascono i miti degli abbinamenti perfetti, delle sinergie, che poi si tramandano online e non. Un mondo controverso, dove psicoacustica, autosuggestione e memoria ingannevole la fanno da padrona. Questo Loxjie P20 è un finto valvolare e i puristi storceranno il naso ben prima di ammettere che suona benissimo, al livello di amplificatori sia valvolari che e a transistor che costano 10 o 20 volte di più e posso assicurarvelo perché l'ho testato e paragonato personalmente. Forse è colpa mia che non ho un udito superdotato? Non saprei, ma alle misurazioni il p20 ne esce a testa altissima (guardate su S.B.A.F.). Come dicevo, chiamarlo valvolare è un azzardo: ingresso e finale sono gestiti da opamp (vade retro! cit. l'audiofilo maniaco), le valvole son messe lì a fare "non si sa cosa" tra il circuito del volume e le uscite dove si collegano le cuffie.. sono lì per distorcere un paio di armoniche e assieme alla resistenza da 47ohm in uscita, danno al suono quel tipico caratterino da valvolare: basso esplosivo, un lieve riscaldamento al tono, una smussatina e il medio che avanza un po'. Fatto.. Un amplificatore ibrido, bilanciato, che suona molto corretto, con una dinamica impossibile da mettere alle strette a patto di non voler perdere l'udito, con le tipiche nuance di un valvolare, con una buona potenza se si sfrutta l'uscita bilanciata, con un'estetica piacevole e un prezzo di soli 99 euro (quando non è in sconto). Nessun trucco o inganno, è tutto vero, ma è dura da accettare per alcuni. Il Loxjie P20 va benissimo con la maggior parte delle cuffie dinamiche, in particolare quelle con impedenza da 250ohm in su. In bilanciato eroga il doppio della potenza e suona distintamente meglio, quindi se proprio le vostre cuffie sono sprovviste di cavo bilanciato, acquistate un adattatore XLR --> jack e il gioco è fatto. Suona comunque bene anche sfruttando l'uscita single ended: io ci collego le hd598 e, nonostante la loro impedenza bassina, con questo ampli restituiscono un suono splendido. Basta portare il volume a -25 (poco oltre la metà) per avere volumi da concerto rock live. In bilanciato ci piloto anche le fuoriclasse Twin Pulse Extreme della Spirit Torino, cuffie a doppio driver in carico isobarico con 64ohm di impedenza, e il suono restituito è da panico. Un basso che fa vibrare il teschio e al contempo controllato, voci calde e succulente, buon dettaglio e trasparenza senza estremizzazioni, una scena molto credibile e una dinamica da live. Ovviamente anche il dac e la sorgente fanno la loro parte, quindi il resto della catena è sempre importante. L'oggettino è ampiamente upgradabile, non aspettatevi stravolgimenti, ma chi ha ascoltato tanti prodotti e sa quello che cerca ne rimarrà molto soddisfatto. Io ho sostituito le valvole originali (già di buona qualità) con delle 6N3P-DR accoppiate con margine di errore 1% e triodi bilanciati. Ho inoltre sostituito l'alimentatore in dotazione con un alimentatore Ifi Audio ipower compatibile (12V e almeno 1.67 ampere, mentre per quanto riguarda lo spinotto DC serve un 5.5mm x 2.5mm). I risultati: un suono un po' più trasparente, una scena sonora un po' più ampia e un basso un po' più raffinato, meno boomy con le cuffie a bassa impedenza. Si potrebbero anche provare altri opamp, vedrò.. e nel caso tornerò ad aggiornare la review. Mi ritengo già più che soddisfatto. Vi sconsiglio in ogni caso di utilizzare il P20 con gli auricolari ad altissima efficienza, perché l'elevata impedenza di uscita genererà un lieve rumore di fondo e gonfierà particolarmente la gamma bassa. Perché 4 stelle? Per il semplice motivo che è un "prodotto ingannevole", dove le valvole hanno un ruolo marginale. Eccellente per il resto.. merita almeno una prova.

I bought this to test out balanced vs single ended headphones/amplification, there's only one way of knowing if I can hear a difference. It was the cheapest fully balanced amp I could find and seemed surprisingly well featured for the money. Rather than drop a bundle on an expensive balanced amp I figured I'd test the waters first. I actually paid £67 for an Amazon return and it was unused, I think they may have been sent the wrong colour - incidentally at the moment I write this there's a red one available for the same price so move fast if you want one!. It has a digital volume control, so there's no channel imbalance. It also has a useful LED screen that allows you to swap from single ended/balanced in and singled/balanced out using the volume knob that also functions as an on/off switch. It's quick and easy to use, there's a very short warm up time and the relays make a satisfying click as they switch between the inputs and outputs. You can't drive both outputs at once, it's either balanced or single ended. The unit itself is well made, it's a good weight with a nice finish. The volume knob makes positive clicks as you rotate it from -60 to 0, and also clicks as you press it. It's perhaps a little wobbly, but it's not a problem. The tubes glow a little, but there's also some internal LED's that make the tubes shine purple. I'm not normally a fan of LED's under tubes but I kinda dig the way these look. I swapped the power supply out for a 5A one just to make sure it was well fed. I think it helped, or at least didn't hurt - I've read about people turning their P20's on and the tubes/display taking their sweet time but mine is fine. I think the supplied power supply is only 1.75A which is pretty low. With my 5A supply start up is instant and it's capable of producing some nice low frequencies at fairly loud volume. It's a hybrid amp but I'm not sure just how involved the tubes are. The unit itself does get warm - so keep the vents clear! - but the tubes themselves don't get that warm or glow brightly and audible effects are subtle. Running it side by side with my solid state and tube amps reveals it sounds closer to solid state, while my Little Dot II and Dark Voice 336se sound quite different. However, there's a touch of tube and I'm sure there's fun to be had with tube rolling, it's quite possible the stock tubes just aren't that "tuby". But that might be just what you want - a touch of tube. I certainly find it enjoyable. Unfortunately the Loxjie doesn't work as a pre-amp, but if you fancy adding a touch of tube to an existing solid state setup then I can recommend the Nobsound 6J2 (Douk Audio D2) tube pre-amp for about £40. It's an excellent little device and spices things up nicely with minimum fuss and investment. Running an RME-ADI2-DAC into the balanced and single ended inputs allowed me to quickly switch between balanced vs single ended inputs, balanced vs singled outputs, combinations of them all, volume matched. I've tried it with a variety of Sennheiser - my favourites with tubes, maybe ten other dynamics, and even a few planar magnetics which play nicely with the hybrid output. In fact it's cost me more to buy the cables than it did the amp!. Unfortunately for me, if there's a difference between balanced and single ended, both input and output, then I simply can't hear it - and I've tried!. It hasn't mattered what combination of songs, sources, headphones, inputs or outputs I've used; I can't detect any changes at all when A/B'ing between them. Single ended in to single end out sounds the same to me as balanced in balanced out. Your mileage may vary but that's been my experience. I wish I could say differently as I was hoping there was more to balanced outputs than increased power. I can see the benefits of balanced interconnects for noise rejection, but as I was using short runs any benefits were inaudible. It wouldn't surprise me if the extra power that balanced outputs can provide is what some people perceive as superior, or perhaps it's extra power in reserve that allows for peaks when the music calls for it. I know from trying to drive the Tin P1's that unless you give them sufficient power and have plenty in reserve they just don't sing as they should. I'm just guessing here, I really have no idea what the truth is. However, my experience with the Loxjie didn't point to any audible performance gains going fully balanced. However, I suspect that some amplifiers and DACs truly are best when run balanced, but I suppose that would also mean some are best run single ended. It really would come down to the individual products involved I guess. It drives 300ohm 6XXs through both the single ended and balanced outputs, so it has enough power for most people. However there's not much left in the tank so if you want to listen at high volumes then you'd be better served by a more powerful amplifier. Or just turn it down a bit - tinnitus is no fun!. As long as it's able to push your (fair impedence) phones it stays audibly clean, it has particularly nice bottom end and it doesn't become harsh. So the good news is that it's a nice sounding amplifier with enough power to push fairly demanding headphones. The unfortunate news is that for me the balanced output offers nothing that my single ended amplifiers don't. In fact they have considerably more power than the P20's balanced output. It did run out of steam with my difficult to drive headphones. At the other end of the scale, running low impedance headphones such as IEMs exposes the relatively high noise floor (compared to solid state at least), although it's audibly clean with less sensitive headphones. I've a feeling that although the amplification is solid state the output impedance is pretty high, which may affect the frequency response of some of your headphones even more than the tubes will. I don't want this review to sound negative but I'd be remiss if I didn't mention the amp's limitations and my impressions of the balanced performance. I like the Loxjie and use it quite often. I was hoping to find an audible change by going balanced so I'm a bit disappointed I didn't find one. But if I need obscene amounts of watts in future then perhaps another more powerful balanced amp will be the only way to go. So all in all, the balanced inputs/outputs don't seem to make any difference, it isn't nearly as tubey as some other tube amps, the output impedance is probably too high, and objectively I'd guess it doesn't measure that well. However, despite all of that, I still rate it five stars purely because it's so inexpensive, it's simple to use, it sounds good and I enjoy listening to it - I've no problem recommending it for what it is. I like tube amps despite their shortcomings and this one is no different. There's sometimes a gulf between what measurements say and how enjoyable something is to listen to and tube amps seem to fall into that category. You can buy solid state amps for around a hundred quid that will run rings around it in terms of measurements, and if you want high power and/or low distortion/noise then that might be a better choice (add a Nobsound pre-amp for the best of both worlds!). For me the Loxjie is great to use and listen to, and comparing amps/inputs/outputs blind was fun and a bit of an eye opener for me, excuse the pun. No, don't excuse it, I'm proud of that one!. As it stands the P20 is a neat little piece of gear and I'm sure most people will find it meets their needs very well. It's a nice amp, easy to use, it's built well and looks good too. For the money I paid, or even the full RRP, I can't see anyone being unhappy. Happy listening!