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    A Matching Set

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    gener8r

    Posts : 56
    Join date : 2012-04-28

    A Matching Set

    Post by gener8r on Mon Jul 22, 2013 9:14 pm

    Latest builds; SP13 and PH16 and MK3 Clones.

    MK3 Clones:

    http://www.flickr.com/photos/59541088@N08/9348126976/

    http://www.flickr.com/photos/59541088@N08/9345342705/

    SP13:

    http://www.flickr.com/photos/59541088@N08/9348161882/

    http://www.flickr.com/photos/59541088@N08/9345525679/

    And matching PH16:

    http://www.flickr.com/photos/59541088@N08/9348262880/

    Thank You Roy for responding to all inquieries and for the Toshiba 170s, Kevin for the parts and service, and last but not least to Bob L.  for starting me down this road to where I am now.

    sKiZo

    Posts : 1285
    Join date : 2013-04-01
    Location : Michigan USA

    Re: A Matching Set

    Post by sKiZo on Tue Jul 23, 2013 12:47 am

    You sir, are an artiste!

    My favorite is the ST-70. Real clean look to it ... Although for the life of me, I can't find a wind up key listed in the specs. tongue

    PS ... whatsa Toshiba 170? And what's the pOOp on the toroidals?

    nerpissad

    Posts : 58
    Join date : 2012-09-16
    Age : 43
    Location : amsterdam

    Re: A Matching Set

    Post by nerpissad on Tue Jul 23, 2013 4:54 am

    those enclosures are simply beautiful!

    Bob Latino
    Admin

    Posts : 2376
    Join date : 2008-11-26
    Location : Massachusetts

    Re: A Matching Set

    Post by Bob Latino on Tue Jul 23, 2013 6:28 am

    Hi gener8r,

    You should have also posted the photo of your listening room (as below) with all your custom DIY gear. What a great listening room with all that custom DIY gear.

    Bob



    arledgsc

    Posts : 330
    Join date : 2012-11-30
    Location : SF Bay CA

    Re: A Matching Set

    Post by arledgsc on Tue Jul 23, 2013 3:53 pm

    Not trying to steal the thread but in Bob's picture what are those two amps on the floor in front of the center channel speaker?   I count 16 bottles per amp (2 rows of eight tubes) if I am seeing things correctly.  Look like KT88s and are these single channel mono amps? You would really have to save up some serious cash to retube those two. Shocked  Quite an impressive array of audio gear there.

    TMadden

    Posts : 99
    Join date : 2011-12-22

    Re: A Matching Set

    Post by TMadden on Tue Jul 23, 2013 6:25 pm

    Wow, incredible craftsmanship! Thanks for sharing!

    tubes4hifi
    Admin

    Posts : 1261
    Join date : 2008-11-30

    Re: A Matching Set

    Post by tubes4hifi on Tue Jul 23, 2013 8:38 pm

    Gener8r (Charles)
    a true audiophile and obviously one of my best customers! It's all good stuff!!
    Tell the world how good the SP13 is, I keep selling SP14s and have all these leftover SP13s (but I know that you are going to buy them for your friends anyway Very Happy 
    I wish my own listening room was that big and had all my goodies in it! Please, take more of mine so I have some space! Laughing 

    tubes4hifi
    Admin

    Posts : 1261
    Join date : 2008-11-30

    Re: A Matching Set

    Post by tubes4hifi on Tue Jul 23, 2013 8:43 pm

    arledgsc
    those are Rozenblit OTLs in the center, for when you get bored and need $900 worth of tubes for a 15watt amp
    they have their place, for certain people with certain speakers, for the rest of us, there are M125s or ST120s  What a Face

    turbotoy

    Posts : 47
    Join date : 2012-04-15

    Re: A Matching Set

    Post by turbotoy on Tue Jul 23, 2013 9:06 pm

    Awesome work as usual! I'll be very interested in your listening impressions of the SP13 vs SP14 and the PH16 vs any other phono stage you have to compare it to.

    tubes4hifi
    Admin

    Posts : 1261
    Join date : 2008-11-30

    Re: A Matching Set

    Post by tubes4hifi on Tue Jul 23, 2013 9:41 pm

    I hope Charles (gener8r) doesn't mind me sharing, he sent me this email a few days ago:

    OBTW, I really like the SP13. Most impressive is the separation from/between channel to channel. I took the time to find 6CG7s with the dividers. I'm not sure if they sound any different than a 6FQ7. Regardless, I am am quite impressed with this rendition of the circuit. It is a tad different sound wise than the SP14 to my ears, which can be attributable to more than just the tubes, although the only thing I used differently parts wise than the SP14s I build were the output capacitors, and of course the tubes.
    This thing is a real sleeper. I like the smaller footprint too. Overall I'd have to give the edge to the SP14 though, at least to my ears it sounds a bit closer to the core.
    Could it be the octal tubes?


    yeah, those of us who have tried OCTAL really like it! I agree with his comments of course. My new SP10 octal with phono will be built and done and listening next week.
    Also, I consolidated a few of his photos here so you can get a quick overview of them.

    gener8r

    Posts : 56
    Join date : 2012-04-28

    Re: A Matching Set

    Post by gener8r on Tue Jul 23, 2013 11:46 pm

    Thank you all for the kind comments.

    Skizo: the Toshibas mentioned are the 2SK170BLF transistors needed for the PH16's PCB in the "J1" position.  They are a chore to find and many would be needed to make a matched pair.  Roy freely gave me two different sources to procure these things, and as it turns out he sells two matched pairs cheaper than anyone else out there (hint hint).  So there's a plug for Roy as he hasn't mentioned that on here or on his website.

    When I have some time I will report back on the comparison of the PH16 to the Transcendent Sound Phono Pre.

    A few years ago, before tubes4hifi had preamp offerings, I had asked Bob for his advice on a preamp to drive my Latino ST70. He recommended the TS Grounded Grid, which is how I came to know Transcendent Sound.   I am slowly replacing all the Grounded Grids in that room with tubes4hifi SP13s and SP14s.  They are superior to the Grounded Grid.  I really do like the SP13 and chose it to go with the MK3s as I suspected the lower gain of the SP13 would be a better match for the MK3s than the higher gain SP14.  Great Combo!  I can't imagine you guys using an SP14 with an ST120 or M125s, especially with a phono stage in front of them.   The SP14 is perfect for driving my low wattage SE amps though.

    As far as amps go I have stated in more than one forum that Latino ST70 kits are the best bang for the buck in all of audio.
    An ST70 is my reference amp.  Anything else I build is always compared back to an ST70, but that's an ST70 with a VTA driver board and the Output transformers used by Bob and sold by Kevin.  I have never tried the Triode trannys.  The toroid PTs on those MK3s are Tomikos. I know Bob frowns on them, but for my use they work fine.

    The amps in that room are a combo of Transcendent Sound OTLs and Dynaco/Transformer-coupled amps.  It's an all tube 7.1 system, and each amp was chosen for the channel(s) its driving.  And yes, the amps on the floor are TS "Beasts "  and currently not used.   The should be called "furnaces," not "Beasts"

    I would like to mention that of all the tweaks I ever did, setting that room up as a listening/viewing room was the best by far and the culmination of a lifetime.  No two surfaces in that room are parrallel or perpendicular.  The right wall opens up and becomes wider by a few degrees as it goes to the back of the room in relation to the left wall.  The only true 90 degree junction is the floor and the left wall. The ceiling slopes upward a few degrees from front to back and is 4 inches taller in the back of the room than in the front.  Getting the ceiling tile grid laid out so that it sloped was challenging.  All four "corners" are diffused with off-setting angles so that there are now 8 "corners".  The system has feeding it two dedicated 20 amp circuits tied to nothing else in the house.  You should see the electric meter outside spin when its all fired up!  Fiberglass or foam insulation behind the drywall, good acoustical ceiling tile, padded carpet and stuffed sofas all add to the effect.  The builder who worked with me on it uses it in his portfolio now as apparently there is a demand for converting existing rooms into viewing and or listening spaces.  Imagine that!

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