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Line Magnetic 219ia vs Mc225

I am currently changing things up my system. I am looking to purchase a tube amp and have narrowed down quite a bit. I am unsure however, whether it would be more wise to go with a SET design or a push-pull design. The two amps in particular that I have in mind are either a Line Magnetic 210ia or 219ia SET 845/300B amplifier, or a vintage mc225 push pull amp with 7591 tubes of course. I waved the idea of a primaluna around but am pretty set on the two amps I’ve mentioned.. More will be familiar with the mc225 than will be with the line magnetic, but they get stupendous reviews and feedback, placing them as some of the best out there, next to shindo etc., in the tube amp world. The 225 obviously has its cult following as well, and is renowned and said by many to be maybe the best Mac amp of all time. (doesn’t matter)... anyway..

I am predominantly a record listener, but also listen to some digital and CD. My source pieces consist of a VPI Classic 2 turntable with a Soundsmith Zephyr 2 cartridge, an OPPO 105, and a Marantz 7701 preamp/ phono stage.

I have sold my previous speakers, and will be picking up a pair of 60’s vertical cornwalls this week. 102db obviously means that i do not have to consider wattage as a factor at all. I listen at low to moderate levels generally. Even 2 watts will have the cornwalls blaring. At this point the consideration is quality of wattage and current. The current will be responsible on the power to drive the 15" bass drivers in the cornwalls way more so than the wattage. The line magnetic SET amps will have no issues driving my speakers as they have large quality made transformers and move tons of current.

Here is the thing. I listen to jazz, classical cello and bass arco works, etc etc. I like soft rock as well. I also listen to very aggressive forms of rock. Hardcore, metal, thrash/speed metal, power violence, sludge, crust punk, etc etc. Those familiar, know what i mean. I am unsure on whether to go with a SET amp or PUSH PULL. Will one suit me better, or does it not necessarily matter, and either should do just fine? I know that the mc225 is known for being tubey, however natural, tight low end etc. The 219ia is known for being extremely transparent, refined, with a bold tight low end, beautiful 300B midrange, etc. Read Steve Huff’s review of this amp if you are unfamiliar. He calls it just about the best amp he has ever heard..... However will it does for the heavier stuff i listen to? This music is listened to on LP form more than less, and is recorded well and many are analog recordings.

Any input by those familiar with these two amps OR with push pull/SET amp comparisons in their own setups, please chime it with advice. I do appreciate it!

jkull
charles1dad's avatar
charles1dad
10,250 posts
 
Hi jkull,
It appears that the 300b tubes individual character are apparent as driver tubes just they are when used as output tubes. Your description of the sound of the KR is quite similar to how it was in my amplifier. Like I have written previously I gave a slight edge to the EML XLS but could unquestionably live happily with either of these exceptional tubes. No surprise to me that you preferred the KR to the Full Music 300b. I’d check to be sure that the EML mesh is suitable as a driver tube in your amplifier's circuit. It’s a very beautiful organic sounding tube under the right circumstances.
Charles 
jkull OP
95 posts
 
I have furthermore sold my designated digital playback/DAC component, my oppo 105, and have replaced it with the LM502ca DAC.. Rolled the 12AU7’s to NOS mullard C4003’s right out of the gate. Have had the DAC for a few days now and the sound is improving and improving. It is an improvement over the oppo, with the quality and amount of bass being the extremely obvious mention here. Between the KR300’s and this new DAC (using the tube stage basically always), the bass has become much improved in my setup. Digital glare has been much reduced compared to the oppo, and the sound is more textured. I expect even further improvement once the NOS tung-sol 6x4 rectifier tube arrives, to replace the stock Chinese 6z4. This is said to bring a very nice improvement, even greater that the rolling of the 12AU7’s in this DAC. I will upgrade the coupling caps to silver/gold in oil mundorfs shortly as well. Very happy with this DAC so far and feel that is is a definite improvement and a better piece as it is strictly ’audio dedicated’.
charles1dad's avatar
charles1dad
10,250 posts
 
Hi jkull,
It appears to me that since your acquisition of the Line Magnetic 219ia your system has taken a sharp turn toward naturalness and realism. No doubt that this change in your digital source takes you further down that road.  I don't believe there will be any looking back. I'm sure music played though your current system is organic and captivating. 
Charles 
miyabi
5 posts
 
Think, even if you will take LM-515CD, sound will improve significantly, comparing Oppo or some other middle class solid state CD players. It`s going much closer to analog sound, have some vibrations, deep and warm mids, which hard to find at that price range or higher enough.
At my experience with LM 219 and LM 210, replacement of 300B tubes, is not so much step ahead. I tried STC-4300, one of the best sounding tubes ever, and improvement was just for some very experienced listeners, so stock Shuguang tubes are good enough. 
Very interesting story, that LM 219 actually so good in basic version, so even if you will try to find some preamp for further system upgrade, it will be not easy story. At my experience only Shindo gave some real step ahead, that can be valuable. 
It looks, one of the good idea for upgrade, to make a right choice with interconnects and speaker cables.

jkull OP
95 posts
 
Charles - absolutely.  my system has went from a nice marantz receiver and oppo to now the LM502 and soon enough a SET phono.  Surely more of a pure audio angle approach has been taken and I'm very happy, and am appreciative of the input, encouragement, and help from yourself almarg and a few others.

Miyabi- indeed the LM Amos are great from the factory.  I am utilizing the pre amp in my 219ia and have no plans of changing that right now. The tele 12AX7's made a dramatic change.  The soundstage larger, much more imaging, separation, you name it, it literally improved everything.  The WE310A's were the least effective tube swap. I did it bc I got them for a good price, NOS, and hell, WE tubes last forever.  The 300's did however make a nice change. The KR's improved the bass, and sweetness.  keep in mind I am running through horn tweeters and midrange.  With this, sometimes too transparent or receiving if a system can become TOO overbearing on the ear.  So eq'ing through tube rolling allows for the balancing of all of this.  The KR's helped well here.  I listen to classical and jazz, all the way to thrash metal. When you get into the heavy guitar driven music, this is when a fatiguing system can kill you the most.  The stock full music 300B's are very very transparent and can have some bite on that high end. They are a great tube and we're fine by me, but the KR's have sweetened things. As good of a source piece that the oppo is for the money, it CAN be shrill, and fatiguing.  The LM502Ca with what little hours are only on it now, has greatly improved listenability. The biggest very audible improvement from the oppo to the LM is in acoustics.  The upright bass on my jazz albums sounds wonderful.  I hear much more wood, much more resonance in the body of the bass, and in the cello.  There is just.'more' there. It manages to depict and extract MORE details while somehow NOT making the extraction more fatiguing.  Wonderful
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