Kinki Studio EX-M1


I’ve always wanted something simple and not a jack-of-all-trades when it comes to my stereo. KISS (keep it simple, stupid) is something I use in my approach to most things in life. Why overcomplicate? The Kinki EX-M1 is just an integrated, and that’s not meant as a pejorative. There’s no DAC or streaming capabilities, or room correction algorithms built in, and it won’t fold you laundry. There are 4 inputs out back, three unbalanced (RCA) and one balanced (XLR) which I’ve read is a simple and not a true balanced. Either way, it adds another type of input which can come in handy. The binding post are copies of WBT versions and are a joy to work with.

It has a frequency response of 10-150kHz (+/- 3db) and outputs 215W into 8ohms. It retails for approx. $2,200. Here is a link to more specs:
https://www.vinshineaudio.com/product-page/kinki-studio-ex-m1

Because of it’s silvery finish it has an imposing appearance but compared to my black Marantz PM-15S2b, it’s about the same size. Personally, I love the look. When they say it’s built like a vault, this is the vault they refer to. The weight is imposing as well (55.12 lbs.) so take care when maneuvering it. You can turn it on with the remote or by pressing in the selector knob on the left. Turning it off is done by pressing and holding the same knob for 5 seconds, or by remote. The default volume setting when turned on is set at 10 so make sure to turn it down to 0 before playing anything unless your speakers are of low sensitivity. A well made manual is supplied but alas, it’s only in Chinese, but Alvin told me they’re making one in English.

Having 255 steps of attenuation gives one extraordinary range to get to exactly where you like to listen. You can go up 10 to 15 steps and not notice much of a change, at first, until something dynamic asserts itself or when you realize that in general, it’s now more impactful. Using the remote allows you to quickly go through the steps and adjust on the fly. I find this most handy and now use it to tailor the song or piece of music to my tastes.

As an integrated, it simply excels in it’s purpose. As verbose as I can tend to be, it leaves me speechless in describing it. It does nothing to detract. It does everything to commend. It’s incredibly fast and yet so utterly smooth. Musical presence is immediate but not etched, hyped or shrill. It’s light on it’s feet but can pounce and stomp when called for.

Liu, the amp’s designer, does not believe in exaggerated base and yet this amp goes lower, tighter and simply growls tone, details and ambience that I haven’t heard before. Lower registers of the piano left me slack jawed as I basked in the reverberations of the soundboard. The same goes for cello, guitar, percussion and massed strings. Imaging is the best I’ve heard in my system. Nothing wavers (unless done in post production) and separation is tops. With The Milk Carton Kids, the two of them finally are completely separated and at a greater distance apart than what I’ve been used to or thought they’d be. Small chamber music pieces have me scanning the soundstage as different pieces play distinctly in their own space. Back up vocals are distinct as well with no smearing. They may harmonize but they are clearly different.

Highs are fully extended, again, beyond what I’m accustomed to hearing. They can go on well into a piece and you can hear the decay even when some bigger play takes center stage. Bells and chimes can tickle like the real thing. And speaking of stage, it’s of one piece, the same no matter where you care to go. All the way left, right, up or down, even as far back as you care to look. The strength of the music lies everywhere you care to listen. The only limits are what was done in the recording.

It has no noise floor that I can detect. On Abdullah Ibrahim’s The Song Is My Story, he’s not up on stage, as usual, but I’m sitting next to him while he plays (I listen in the near field so that helps). The piano is the full width of the soundstage, steady as a rock, and the notes flow out around, up, and beneath me (great mike placement). Notes can and do come out of a completely black background unless the recording is done with less tricks and then you easily hear the venue, the room, the stage, the setting. And, I never thought I’d say this but FM now sounds pretty fantastic, considering it’s limits.

The sound is so pure that it’s reoriented the way I listen to music. I no longer listen analytically but for the sheer pleasure. It’s so rewarding and relaxing. Listening to favorites, I’ve noticed that some sound different enough for me to notice that there was some exaggeration or emphasis of certain parts of the frequency with my older set up. Whether it was the house sound that some say certain brands have or just the limits of the design I can’t rightly say. Maybe it’s all the extra circuitry added to accommodate all the extra features I have no use for. No matter. I’m content. Happy as a puppy with two pee pees.

Also, I have to give thanks to Alvin for his great customer service. He’s the most attentive distributor I’ve dealt with. His response to any question I had were immediate and thorough, as long as one is mindful of the time differences (just check your clock on your smartphone to coordinate appropriate time zones). 👍 He even followed up with shipping notices, delivery times, and any question I had with the unit’s operation or features, which reminds me, since it draws about 30-40 watts when on, make sure to leave it in standby when not is use. It can get very warm to kind of hot, but not hot enough for me to lay my hand on it for any length of time. If I had more space it wouldn’t be a concern (it cools off quickly). That leads me to believe that maybe since my JBL 4319 monitors are 92db, and that it doesn’t take much to make them sing, that the EX-M1, which is a Class A/B design, operates in Class A for the first several watts, which could account for the warmth of the unit along with the wonderful tonal density and texture. Someone with more know how can look into that.

All in all, it’s the best money I’ve spent and now I have no desire to upgrade to some PC based system. My CDs and SACDs sound fantastic, even the old ones along with the reissues. To think you’re getting a real taste of what the well heeled have been enjoying for a fraction of the price makes this a true bargain if there ever was one. Let me also add that I received no consideration from the manufacturer or distributor and these are my views and opinions.

All the best,
Nonoise






nonoise

Showing 20 responses by benlzy

Hi guys, I decided to participate in the discussion here since there wasn’t much activity about the Kinki amp in our local forum. I’ve had the ex-m1 for about 2 weeks now, and I agree with everything you guys have said. Fast but smooth, highly detailed, transparent, superb bass control and transients.

However, I want to ask if any of the other owners find it lacking juice reserve. I’m playing in a relatively small dedicated room, 13’ by 10’. Regular listening volume on most albums doesn’t exceed 30, but I sometimes crank it to 50+ when I want to play slightly louder. That said, there are certain tracks or albums that require much more juice for it to sound properly dynamic and loud. A couple of these tracks are Hans Theessink - Mississippi, and Hugh Masekela - Stimela (The Coal Train) from The Dali CD 1. On said tracks, I have actually pumped up the volume to the max 255, without it sounding unbearably loud. But then again I’m on the ’low gain’ setting, connect via rca interconnects. Understand from Alvin that ’high gain’ is only +4db.

Though I’m not a person who listens at a high volume often (at night my listening volume is 10), it is fun to crank it up occasionally. I don’t think my speakers are particularly hard to drive, as they rate in at 88dm/8ohms (only dipping to 6.4ohms). But this worries me a little, as I have never ever in my life, cranked up an amp to max volume. My previous Job INTegrated, though rated lower in power, felt like it had a lot more juice reserve than the Kinki ex-m1.

Wonder if the other owners can chip in and share their experiences.
@uncola 
The volume increment from 0-30 is quite substantial, but the gain from 30-255 I feel it probably less than 10-30. At the 100+ range, you can crank up 10-20 notches without even perceiving an increase in volume. I'm listening to them in a rather near field setting too (small room), about 6' away from the spks.

@nonoise 
Yea I guess it's all about the recording. I will switch to high gain then on those albums. 99% of the time I won't have to go into the triple digit range, but it's just startling to me as I've never max-ed out an amp before. There was no distortion even at max volume though, which accounts for something.
@vingard

I have had the Job INTegrated for 3 years. During this period, I have heard many other systems out there - at friends’ places; HiFi shows; dealer shops etc. Singapore is a really small country and a visit to any ’hifi location’ typically takes less than an hour of travelling, so everything that you want to listen to, you sort of can.

In these 3 years, I have never been tempted to replace the Job INTegrated with anything else, despite all that I’ve heard. For me, the INT sounds great and provides excellent value for what it costs, and I know that I have to spend considerably more to achieve the performance it delivered, if I decided to ’upgrade’.

The INT is not without flaw, but it fits splendidly in my system. Despite it not being the most resolving, dynamic or refined sounding dac/amp, it had a great tonality and musicality which I find lacking in plenty of ’high-end’ systems. They just go loud and attack you with thunderous bass and punchy dynamics - not what I’m after.

However, with time, my itchy fingers made me change some things in my system, which resulted in a snowball effect - everything suddenly became a bottleneck, and the Job INT too, couldn’t match up to the ’upgrades’ I brought in. In came Alvin, who provided me an opportunity to try the Kinki dac. Needless to say, I was impressed by it, and decided to get both the Kinki dac and amp.

So with this back story out of the way, let me try to describe the sonic differences. This is a comparison between the Job INT and the Kinki dac/amp combo. RCA connection.

The Kinki combo has a very, very low noise floor. You have to strain to hear the electronic hiss with your ears beside the tweeter. The INT however, is rather noisy, and you can start to hear hiss from the speakers about 2’-3’ away.

The Kinki combo is also way more detailed and dynamic than the INT. Bass growls and punches you hard. The INT in comparison, had a rounder bass which is definitely not as tight or defined. Bass lines aren’t particularly clear with the INT, when compared to the Kinki combo.

The Kinki combo also has a wider soundstage and depth. You get a better sense of air around each performer, and everything has its place in the soundstage. The Kinki also doesn’t lose its composure when it goes loud. There is no perceived distortion even at max volume. The INT however, though it may go louder, starts to lose composure. At loud volumes, it kinda struggles and you’ll start to feel that all you’re listening to is a wall of noise without much depth.

Before getting the Kinki combo, I was worried that it would sound too sterile and clinical but it proved otherwise. I still prefer the INT’s tonality as there’s more warmth in the mids, which makes it sweeter and more enjoyable, especially with female vocals. However, I’m not losing sleep over this as the Kinki combo is really outperforming what I thought possible in its price bracket. I’m also only using the stock power cord that came together for the dac, as I didn’t have a spare ’audiophile grade’ cord lying around for this additional component. I don’t want to step on anybody’s toes, but to me, power cords do make a difference in the sound, and I think the Kinki combo can only get better as I start to tune it to my liking after the dac and amp are properly burnt in.
Just to clarify, the INT is quite sensitive to power cord changes; the warmth and musicality I’m getting may very well be attributed to the cord I’m using with it, the Branda from Telos Audio. This cord retails for more than the INT but my idea was that, since I’m already saving on other equipment and interconnect costs, might as well feed the INT with an awesome one. I don’t really follow any equipment to cable cost ratio. As long as it sounds good to me and is within budget, I’ll go for it!

Maybe after I replace the stock cord on the Kinki dac with a proper one, I’ll get the same musicality and lushness I did before, only this time with way more detail, refinement and control.

I don’t understand how the amp can feel cool to the touch to some of you here. Mine gets freaking hot after extended play time, if I don’t turn on the air-conditioning! But then again, Singapore is pretty hot all year round so probably that’s why.
@mboldda1

I have indeed heard the Pontus at my place, but only for a night when a friend brought it over. At that time it was being paired with an Audio Analogue Accento amp, and I don’t think I would be able to write an accurate review to compare it to the Kinki dac. These are 2 completely different sets of equipment, with tone, musicality and flavour going in favour of the pontus/aacento combo (with triode wire labs xlr), but speed, detail (micro as well), midrange clarity, soundstage and bass control going in favour of the Kinki combo.

Before getting the Kinki dac, I did mention my findings on the Pontus and Terminator in a variety of setups to Alvin, who then suggested that the Kinki dac might be what I was looking for, without spending an arm and leg. He was kind enough to provide me with an extended home trial (I used a Nuprime integrated during the trial as my Job INT doesn’t allow me to bypass the internal dac). After listening to it, I decided to go ahead with the purchase of the Kinki combo.
@jetter

Although I mentioned extended playtime, leaving the amp on with no music playing gets the amp hot too after a couple of hours. However with the AC set to around 77degF, the amp now runs warm, and I can comfortably rest my hand on the case without burning myself. I normally leave it on at volume 1 to play burn in tracks overnight, during these 2 weeks, and I don’t turn the AC on when I’m not in the room listening.

However, it has never been ’cool’ to the touch for me. The only time it’s cool is when it’s just being turned on. Otherwise, it will go between warm (with AC on) to hot (no AC). When I say hot, I do mean hot, as I’m unable to rest my hand on it even if I tried.
That certainly makes sense @almarg . Thank you so much for your input! The voltage in my apartment is 238-239V.
I have added a quality power cord to replace the stock cord on the Kinki dac and the improvement was immense. Felt like a whole different dac altogether! Very, very pleased with the outcome and though I already knew cords made a difference, I wasn't expecting such a leap in performance. Guess the Kinki is really sensitive to cord changes!
Recently, I was fortunate enough to try a whole bunch of different RCA and XLR cables for the Kinki combo. Though the amp is of a SE design, there was a particular XLR cable that matched up well in the system and I went with that.

However, I’m getting more ’hiss’ from my tweeters than I did with an RCA connection, with RCA being almost dead silent even at high gain/max volume (no music playing). Anyone else using XLR cables and noticed this as well?

PS: The hiss isn’t audible from the listening position, and it’s overall still a very quiet amp.
@almarg

Now that you mentioned it, I was expecting a huge increase in volume after swapping to XLR, but that wasn’t the case. It was however, still louder than RCA at the same volume indicator. Just an example, Ed Sheeran’s Divide plays loud at 5 on XLR, whereas on RCA, 6-7 is comparable to 5. Might just be a difference in cables; not truly accurate unless I use cables of the same make.

On high gain, increasing the volume to 40ish is enough to generate audible hiss from my listening position, without music playing. There aren’t any albums that requires listening at 40+ range at high gain, maybe perhaps O-Zone Percussion Group or the likes, when you just want to enjoy the high dynamic contrast of your system. But hearing this hiss is startling, because on RCA connection I’ve increased it to 255 with minimal hiss.

Kinda bugs me that the Dac-1 is of a balanced design while the amp isn’t. I’ve also noticed that when I’m increasing or decreasing volume by holding down the volume button, I’m getting pops from the speakers, usually after increments of 4-5 (apart from the resistor clicks). Should I be worried?
My source is a sotm sms200 neo into a sotm txusb ultra, which feeds the usb signal to my Kinki dac-1. The sms200 is powered by the uptone lps1.2, and the txusb is powered by a custom lps, fitted with an in line digital filter.

The Kinki dac-1, ex-m1 and custom lps are powered by a 2500W power conditioner. The sms200 and network switch are powered by lps1.2 and lps1, on a separate distributor.

I highly doubt it's noise as there wasn't any previously. Let me contact Alvin and see if he's free to pop in for a listen.
Hmm, I’m fine with the resistor clicks; was referring to pop sounds from the speakers. Like when you first start up and there’s a loud pop, that sort of thing. Since you’re also on XLR and using high gain, can you try turning the volume up without playing any music, and see whether the hissing from the tweeters gets more audible?
Well, deduced that it isn't the amp's fault. When the amp is switched on and everything else is off, dead silent. Once the dac is turned on, the popping starts (when I toggle volume). A lot more noticeable on XLR, less so on RCA. This is without my source (sms200) being connected. Alvin's checking with the Kinki chief on the issue (sent him a couple of recorded videos). Despite everything, I still think it's a stellar product if judged solely on sound quality. 
Suspected issue with the grounding/earthing of the dac, causing some potential difference btwn the dac-1 and ex-m1, resulting in the pops I've been hearing. Anywho, the problem has already been looked into and all new units shouldn't have this problem. 
The suspected issue was the earth wasn’t connected in the dac-1 and no, I have not tried grounding both equipment to the same point externally. Previously I was using an AIO Job INT, and didn’t find the need to venture into ’proper’ grounding. Now that I have separate devices, maybe the time is now :)

The Kinki dac and amp are both connected to the same furutech ncf receptacle on my power conditioner, an 8 socket custom made conditioner with furutech internal cabling, with each receptacle star grounded to a common copper bar within the chassis.
Just thought this could be of interest to the discussion. Over the weekend, I brought the EX-M1s to a friend's place and compared it against his Esoteric F-03A. While the Kinki didn't exactly slay the japanese dragon (lost in terms of high extension refinement, detail retrieval, timbre, placement of instruments in the soundstage), it still put up a pretty good fight. Then again, the F-03A costs about 6-7 times more than the EX-M1.
Nice review @mboldda1 ! The EX-M1 certainly feels like it's gonna be my last amp for now.. I ain't got no deep pockets like Bill Gates! The monoblocks do seem interesting though. But that's another box, another pre, and a few more sets of cables. Best let my wallet recover.