I bought an early one (black box) from Oz. At that time they were matched with a wall wart, which they said was all that was needed. A local friend built a fully regulated power supply for mine which improved performance noticeably, particularly with bass production and overall dynamics. About that time, JLTi began offering their own outboard PS as an option. That’s why I ask.
review iPhono 2
So, I have written about the 1st gen iPhono in the past, comparing it to the very fine Coincident phonostage which I believe is about $6k. I preferred the iPhono but I could just as easily imagine someone else going for the Coincident unit. In that review I thought the Coincident had a better sustain, decay and bloom while the iPhono was hands down the winner in the prat department. The iPhono made my feet move, the Coincident, not so much.
Later on I added the iPower to the fray and the iPhono shored up the areas it lacked. As a former owner of the very very nice Graaf GM70 I was a bit surprised and dismayed when I finally received the iPhono and heard it once fully run-in. I would not have shelled out the thousands of dollars I paid for the GM70 and the vintage NOS tubs I purchased to make it sing, oh and the $1600 I had to spend on the Ortofon ST-80SE SUT to use with the MM inputs of the Graaf as I could not get it quiet enough to tolerate with the MC inputs. The very small $400 iPhono basically did everything the Graaf did (with the iPower that is).
My reference phonostage for the last few years (and probably many more to come) is the fabulous AMR PH77 and I’m running it with a set of Bendix 6900 tubes which elevates its performance even more than the already stellar stock configurations performance. In comparison to my PH77, I found the 1st gen iPhono to be a bit thin and during crescendos it could become a little ragged. Still, it remained in my arsenal as a handy and trusty back-up. The PH77 is of course tubed and as we tube owners know all too well, sometimes they fail and you are down for a while.
Compared to most phonostages I have heard, some of them costing up to $9k I found the 1st gen iPhono to be able to hold its own in some cases crazy as it may sound it was just plain better. I believe AMR intended the iPhono/iTube to be used in conjunction as a sort of baby AMR PH77 and I ran it that way for some time and yes, it does share that familial DNA when it comes to sonic signature.
Move forward some years and I have in my possession the iPhono2 and the iTube 2. To say that the iPhono 2 is better than its predecessor is far too simple a statement. Mr. Fremer thought it to be at least twice as good as the original. I would agree with his assessment. Out of the box with the included iPower is shows far more prowess in the areas of bass but otherwise is pretty close to the original. After about 20 hours a bit more fluidity begins to appear. Again at the 100 and about the 340 hour mark big jumps occur in the areas of fluidity and continuousness. When you get to 480 hours forget about it!
This thing sounds like it has a tube in it, and I don’t mean in that classic overly warm soft rose colored sound that I found so fantastic when I was new to high end audio. No, I am referring to a pellucid but meaty embodiment and rendering of the music. A sound one would immediately associate with MUCH costlier gear.
Most of my listening has been done with my second turntable system which is composed of a Technics SL-1200 GAE with a fully broken in Denon 103R on a LP Zupreme 15 gram headshell and my London Reference. The phono stage then feeds the iCan Pro (best pre I have heard and I have owned 2 MFA Ref units, the baby Ref and the full Ref), the Tube Research Labs GTP 2, and many more. I have had in my system for evaluation the Veloce (battery powered) the Allnic L3000 and many others. From the pre it goes to the custom active crossover and then to a Graaf Modena for the mids, a Harmonix Reimyo PAT777 for the Raal Ribbons and a pair of Acoustic Reality Thaumaturges ($25K when available) for the woofers. The speaker is called the Encore and is my own design. I simply got tired of paying for passive boxes made of MDF with wood screws going directly into the glued wood dust and sold for tens of thousands of dollars but I digress :)
The sound is at once flowing and dynamic. It grabs and holds my attention and really gets my foot tapping. The sound is MUCH more refined and fuller than the original iPhono with no hint of raggedness during large scale bombastic music. For instance it scales far more convincingly on some of the more challenging passages in Hans Zimmers wonderful soundtrack to Gladiator. The original could sound a bit blocky if you take my meaning. It did not have the ability to gracefully scale the mountain so to speak. The iPhono 2 does it with much more ease and refinement.
Here is where it gets interesting. As good as the iPhono 2 is out of the box and it is very very good (and especially after 340 hours or more) in fact far far better than the DS Audio optical cartridge system that I auditioned, it can be made to sound a good deal better. Now this is my own thing, the iFi line of SMPS’s are admittedly super quiet and much better than most SMPS such as the ones inside my apple gear, but I hate them ALL.
I do not like green eggs and.., ahem. Sorry, just flashed back to Dr. Seuss when I thought of my aversion to SMPS’s.
I mean I understand why they are used, efficient, cheaper to ship and inherently regulated. But they still hurt the sound of my system. As an aside I am actually having a custom linear PS built for my SL-1200 GAE to replace the awful SMPS that Technics installed. So to the point, I replaced the iPower with a linear regulated lab grade power supply. I don’t like hyperbole so I offer none but the result was nothing short of breath taking. There is a great deal more that can be had from that little silver box with a good (and I do mean good) linear supply.
Next I added the iTube 2 to the fray. As I mentioned before AMR always sorta intended this combo to be a baby PH77 as was or may still be mentioned on the iFi site. How to put this; everything I have said about the iPhono 2 up to this point; multiply it by 2 times again. Now you have that sorta living presence that the performers are in your vicinity. Things are rounder, more palpable and it breathes much easier. Again I powered the iTube 2 with a linear supply along with the iCan Pro. Please don’t misunderstand me, I lived with these units powered via there very good SMPS’s for quite a while and they made beautiful music BUT I knew there was much more to be had.
Like Mr. Fremer (paraphrased) stated, to get better than the iPhono 2 you are going to have spend much more and you still may not surpass this unit. I auditioned a $16K current phono stage that people rave over and my ears tell me that it cannot compete with iPhono 2/ iTube 2 combination. I will not call this a reference phono stage. It is great and I listen to it daily but I reserve titles like reference for the likes of Ypsilon, VDH Grail SB and my AMR PH77. The little combo does far more than I could have imagined. It capable of truly astounding musical reproduction on a grand scale.
Remember to let it run in for at least 100 (and I suggest 300) hours before you really start to judge it but my guess is it won’t take most people that long to know that this is special gear designed by some super gifted engineers who also happen to actually be able to HEAR. Thanks for reading and I hope this helps someone make a decision one way or the other. Happy listening.
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chakster, does your JLTi include the optional outboard power supply? I bought an early one (black box) from Oz. At that time they were matched with a wall wart, which they said was all that was needed. A local friend built a fully regulated power supply for mine which improved performance noticeably, particularly with bass production and overall dynamics. About that time, JLTi began offering their own outboard PS as an option. That’s why I ask. |
rauliruegas: Let me chime in here and speak on my own behalf. I am probably going to regret this. rauliruegas you wrote: "That’s why I posted is a " tricky " design. It’s not a true SS design and certainly not a full bipolar one." The iPhono is solid state end of story. There is not a valve device to be found in it. The iPhono does NOT differentiate from the RIAA curve (provided of the 6 available that is the one you have selected) so I don’t understand your posting of " they manipulated the signal to achieve a " signature ". They did not let it " goes " the design with out " touched " with out changed.". If you are conflating the use of differing SS devices such as mosfet’s combined with bipolars or Jfets with "manipulating a signal" while still maintaining the RIAA curve I would humbly suggest you are in error. Based on your argument, any and all devices, that are arranged in such a way as to present a certain set of characteristics, say the CCIR curve, would portend manipulation of that curve if they did not use one specific type of device throughout the circuit. Lets say that someone built a CCIR EQ circuit using all octals and then another person built a circuit with the exact same transfer function but using octals and 9 pin miniatures and lets throw in a jfet for the fun of it. If that EQ curve measures the same, they did NOT manipulate that signal. The Strain Gauge system (the older version more so than his latest efforts) could be said to manipulate the RIAA curve because if I am not mistaken is does not adhere to the RIAA curve (and I am NOT picking on that system, just highlighting a fact for demonstration purposes). As an example my AMR PH 77 has a unique in-house designed curve for DMM records. That IS a manipulation of the RIAA curve. I believe your terminology is incorrect. If you are writing about signatures, then sure. Most manufacturers go for a certain signature, hence a "house-sound". Unless you can produce a frequency plot or a circuit diagram that details a gross deviation from the RIAA specification within the iPhono 2 your words are at best reckless. Now if someone doesn’t like the unit, so what. I don’t like most gear that the reviewers and many people rave about especially when it comes to dacs and phono stages. I was shopping recently for my 4th phono stage and I compared the Pass Labs XP25, Sim Audio 810P, SPL Phonos and a few others in the same system. Based on magazine reviews and various sites and the psycho babble nuts who show up from time to time to tell us we only hear what we want to hear and that the most expensive units influence us, I should have chosen the Pass. I love Pass gear and at one time had the AWESOME Aleph 1.2 amps which by the way I should have kept, I still regret not hanging on to that amplifier, sigh. Ok, back to the point, the XP 25 was probably the one I liked least of all. I found it thin, sterile and detached from the music but it was airy. The best by FAR was the SPL Phonos and I bought it. Is it better than my iPhono 2 on a linear supply? Yes it is. It is the first phono stage other than my PH 77 that I have preferred to the iPhono 2 but it is noisier than the iPhono 2. The noise is not an issue unless you really have to go high into gain or volume which in my case I do not. The Sim was about $9K, Pass was $10.6K and the SPL is $2.5K. The point is that the iPhono 2 is a serious piece of gear and while it has vanquished many very expensive phono stages, I did find one (albeit 5 times the cost) that I prefer. All of the above because you (Raul) wrote in another post "There is no way that tubes can compete with a good SS design if what we want is to be truer to the recording. ". I can tell you as the owner of a fully sorted R2R deck with R2R Safety Master of Jacintha "Here’’s to Ben" and "Jacintha is her Name" and the 45’s of both albums including the newly released 1 Plate Master limited edition of "Jacintha’s Here’s to Ben" my SP10 MK3 Kuzma/Anna/PH77 sounds closer to the R2R than any other phono stage I have heard. This tube vs SS nonsense needs to stop. I have said for years the better my gear gets i.e. the better the individual pieces are the more they sound alike REGARDLESS of the underlying topology. This should make sense to anyone who understands what we are going after. My Graaf Modena OTL sounds very very much like my Acoustic Reality Thaumaturges. If you a listen to live unamplified music or visit the Opera, etc. and your goal is an attempt at the recreation of that live sound AND if you go after gear that REALLY sounds truer to life and not what some on-the-take reviewer says is the best this month you should notice that more and more of your gear sounds very very similar regardless of its design. |
Dear @audiofun : Perhaps you are not aware what was or what is the iPhono manufacturer touted: Class A TubeState that is touted here: https://ifi-audio.com/portfolio-view/micro-iphono2/ Well this is what you can read in the manufacturer site on that Class A Tube State meaning: Class A, TubeState® The micro iCAN uses a discrete circuit that deliberately models the way tubes amplify audio. The TubeState creates a warm, spacious and natural sound, without the noise and distortion most tube circuits produce. This TubeState® circuit is exclusive to iFi, and it dishes out quite a large dollop of sonic improvement, over and above other mains powered Class A headphone amplifiers. """ All the iFI use that TubeState circuit. """ uses a discrete circuit that deliberately models the way tubes amplify audio. """ that for a non-technical an expert engineering ( I'm talking of me. ) like you has a name: manipulation. Btw, I never posted it was not a SS design. """ This tube vs SS nonsense... """ No sense? where are your facts where belongs your true foundations on that statement. Because not once but several times I posted irrefutable facts some of them scientific facts that are against your no sense statement. Never mind, be happy with what you have, this is the more important issue. Regards and enjoy the MUSIC NOT DISTORTIONS, R. |
rauliruegas: you wrote: Btw, I never posted it was not a SS design. you listed the very link (a few messages back in this thread) to one of your previous posts: https://forum.audiogon.com/discussions/review-iphono-2/post?postid=1415693#1415693 where you wrote: "It’s not a true SS design and certainly not a full bipolar one. No single Ifi product is." TubeState is a trademarked name designed to indicate a unique cricuit. Again, going after a signature sound is not what you described. You wrote: " They did not let it " goes " the design with out " touched " with out changed." I responded by mentioning that the RIAA curve was not touched. Please please show me a circuit ANY circuit SS or tubed or hybrid where the electrons go through it "untouched". I want to see that circuit. What circuit are you using for your litmus test that has absolutely NO signature in order to compare and determine that the iFi is in your words "manipulating" the signal. This circuit adds no EQ’ing other than the RIAA curve (or one of the other 5 curves). You are conflating a marketing term to denote a circuit which a designer identified as sounding "musical, or pleasant" with manipulaton akin to noise shaping in some dacs. When Krell produced the Cast Transmission system which some thought sounded better than voltage amplification, did they manipulate the signal. No, same levels, no added EQ’ing but current amplification can sound differecnt than voltage amplification in the same way that components can measure the same and sound completely different. |
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