YAQIN MC-13S EL34(6CA7)X4 Vacuum Tube Hi-end Integrated Push-Pull Amplifier

I have a pair of Spendor BC1 speakers and have been using them with a NAD Amp from which I have had a lot of listening pleasure. The Speakers were made in the 60's and were designed to be used with a valve amplifier so it has always been my intention to aquire one. This is the amp I have bought. I am absolutely delighted with the clarity and detail I am now getting, hearing many things that I hadn't realised were there and being able to distinguish the difference between an electric bass guitar and a double bass! things I could only guess at before are now really "visible". The Amp was supplied without the plastic valve guards, thankfully. It arrived really well packaged with an expanded polythene fitted box surrounded by two cardboard boxes, the valves themselves were in bubble wrap bags which were slid into a hard plastic tube and then shrink wrapped. I should imageine it would be hard to damage deliberately, let alone by accident. Setting it up was very straightforward, the valves are all marked with a sticker as well as having their usual printed identifier. They all fitted into their sockets with no problem at all and were a nice snug fit once installed. So far I have listened for about six hours of playing time. Listening to some Pink Floyd, Midnight Train To Georgia, Robert Plant, Paul Simon ( amongst others) and some cult, to see if it rocked, Oh yes it does. This amp is the Mutts Nutts. Really. It is very impressive and I would have no hesitation in recommending it to anyone who want good quality sound. Thank you Yaqin.

First things first. Check the voltage. Mine says 240v on the box, 220v on the equipment. I've measured our mains supply, and it comes out at about 240. To prolong the life of the valves, I was planning on building a 240-220v bucking transformer... But haven't got around to it yet... Although no problems yet. You will need to adjust the bias on the valves... There are some decent videos on YouTube for this, if instructions aren't provided. A screwdriver for the job is. Although this amp has a "preamp" stage, the whole thing should really be treated more like a power amp, which is how it describes itself. I'm feeding my Yaqin from a vintage Pioneer Graphic equilizer (17 band), which really makes a difference. My music source was the fantastic little shanling m1, which was handy, because I included some test tones from the internet in FLAC format on it, which made initial set up of the equilizer a bit easier. I made the mistake of leaving that player on charge, and destroyed the battery (physically), so I'm now on a different FLAC player, but being more careful. All in all, good value. Not the best amp in the world, but certainly very competent. It's made much much better by changing the valves... There are some very nice ones out there, and they really do make a difference. Still, if (like I did) you're planning on taking things gradually, the supplied valves do a reasonable job.

I have had this amp for 18 mths and its not missed a beat. Immediately, I bought 4 Tungsol EL34s, 2 PSVane AU7s, and 2 JJ803Ss(AX7). The stock AX and AU7 preamp valves, frankly, are garbage.The 6CA7 power valves arent bad, just a bit heavy on the bass. Budget another £200 for decent ones. It handles all genres of music equally well, with plenty of power through the 4 ohm taps, driving 6 ohm, 90 db, Monitor Audio 3-way floorstanders. Compared with some European/American amps costing 4 times more, it is not shamed in the least. To put things into perspective, the little Rothwell phono-stage to the left of the Yaqin in the photo, cost me £380. Makes you realise just how much Amp you are getting for the money. I paid £420 plus £16 import tax and £186 for valve upgrades. UPDATE 4/12/18. Seems that 5 star reviews serve to fill manufacturers pockets, as the price has risen by £300. If that was the case when I purchased mine, I would have considered Italian or British offerings, that have decreased in price. The Yaqin now costing 1k with necessary valve upgrades and import tax. Their greed will be their downfall.

The chrome finish is excellent looks as good as it sounds. Had this amp for a few months before unboxing.used with wharf dale diamond o.1 speakers excellent sound.very clear and precise. Voice of singers sound in the room, when a riange is played in the track so clear you want them to play it again. I had to change the valves the 6ca7 as accident while moving house. Cost of getting the valves was extortion so purchased the job military grade equivalents,straight replacement great sounding, bass deeper, hi’s crystal clear. Love this amp. Have since upgrade speakers to flor standers, bass extension unbelievable.As you can tell I love my bass, but that said frequency response of amp is clear precise and responsive and sharp.all I need know is a reel to reel the to really appreciate this amp.

Habe mir diesen Yaqin Mc-13 Röhrenvollverstärker gekauft,da ich mit meinen vorherigen Verstärker,Teac ai-2000,klanglich nicht zufrieden war(trotz überragender Test).Mit den Yaqin habe ich genau den Klang ,den ich schon immer gesucht habe,keine überzogene Höhen,sehr gut in den Mitten,sehr gute weiträumige Abbildung,aber auch straff im Bass,dabei überhaupt kein Weichspüler.Betreibe den Verstärker mit Lautspecherboxen MB Quart Vera VS 1B und einen Subwoofer Magnat Quantum 730a,harmoniert prima zusammen.Verarbeitung ist auch tadellos,und das der Yaqin keine Fernbedienung hat,damit kann ich Leben! Nachtrag:Habe den Verstärker jetzt über ein Jahr,und bin zufriedener denn je.Der Verstärker hatte bislang noch keinen Defekt.Vom klanglichen Aspect,bin ich noch zufriedener,als am Anfang. Als Abspielgeräte benutze ich einen Pro-ject Perspektive mit Audio Technica AT-OC9/3,vorgeschaltet ist ein Musical Fidelity V90-LPS Vor-Verstärker,mit SMSL P1 Netzteil.Als CD-Spieler verwende ich einen Shanling CD T-100 Se.Der Klang ist einfach bombastisch.

Ottimo amplificatore valvolare con layout circuitale minimalista. Particolare attenzione richiede la regolazione manuale del bias, che fluttua ampiamente in relazione alle variazioni della tensione di rete. Risponde bene al "tube rolling".

le finitura sono un pò "economiche" ma non si poteva pretendere di più , consegnato con un fusibile bruciato ho provveduto alla taratura del bias e sostituito il fusibile, suona bene