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Post by novisnick on Aug 12, 2016 21:26:40 GMT -5
Update on this system, I havent really had much reason to fire up my other. Except for a few movies and some serious Hard rock-n-roll. Some other music too but most of my listening is made for tubes.
Two very diffrent sounds, I get to enjoy both and all of what music has to offer, maybe missing some very low bass from movies in the HT but I cant say its lacking really!
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Post by milsap195 on Aug 12, 2016 21:34:49 GMT -5
I have Psvane 12AX7A tubes in my Grant Fidelity CD-327A. Makes for some nice sounding music. Happy to hear you are enjoying your new gear. Nice write up BTW I have the Ps Vane tubes in a couple of my units and like the sound. I have also had 2 of the six I have purchased fail after a couple hundred hours. |
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Post by Boomzilla on Aug 12, 2016 21:37:40 GMT -5
The stereo circuits of the ST-70 are gain-matched. Should you replace the tubes on one side (and they happen to have slightly different gain than the originals), then one channel may end up louder or softer than the other. In theory, the gain characteristics of the tube class (EL-34s, for example) are closely enough matched that you shouldn't need to match from channel to channel. But if you're a perfectionist (and you are), you'll be happier with matched quartets.
Now that's the theory. In practice, you can plug any EL34 into the output sockets and provided you set the bias, it should be close enough for government work. If you just want to play with tube rolling, then buy the brand of tube you want (matched or not) and after biasing, you should be able to tell if you like them or not. Once you find a brand that you thinks sounds best in your amp, then (next time you need tubes) buy a matched quartet of those.
If your preamp has a balance control (your McIntosh C220 does), then you need worry less about using matched quartets.
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Post by novisnick on Aug 12, 2016 21:41:48 GMT -5
The stereo circuits of the ST-70 are gain-matched. Should you replace the tubes on one side (and they happen to have slightly different gain than the originals), then one channel may end up louder or softer than the other. In theory, the gain characteristics of the tube class (EL-34s, for example) are closely enough matched that you shouldn't need to match from channel to channel. But if you're a perfectionist (and you are), you'll be happier with matched quartets. Now that's the theory. In practice, you can plug any EL34 into the output sockets and provided you set the bias, it should be close enough for government work. If you just want to play with tube rolling, then buy the brand of tube you want (matched or not) and after biasing, you should be able to tell if you like them or not. Once you find a brand that you thinks sounds best in your amp, then (next time you need tubes) buy a matched quartet of those. If your preamp has a balance control (your McIntosh C220 does), then you need worry less about using matched quartets. Your memory serves you well my friend, the C220 does have a balance control as well as treble and bass controls. anyone familiar with this brand of tubes? |
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Post by novisnick on Aug 12, 2016 21:45:16 GMT -5
scott Have you had the chance to hear the Studio 100's with the ST 70 yet? You were supposed to report back?!?!
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Post by Deleted on Aug 12, 2016 22:29:52 GMT -5
Your memory serves you well my friend, the C220 does have a balance control as well as treble and bass controls. anyone familiar with this brand of tubes? EL34 has a warm British tone to my ears. The bass has good response but this tube excels in the mids, and mid highs. The top end is smooth but not too extended. I consider this tube the Marshall sound. Sounds great a low volume but really comes to life as you crank it. It breaks up earlier than say 6L6 tube. The EL34 is a great rock tube. |
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Post by novisnick on Aug 12, 2016 22:34:16 GMT -5
Your memory serves you well my friend, the C220 does have a balance control as well as treble and bass controls. anyone familiar with this brand of tubes? EL34 has a warm British tone to my ears. The bass has good response but this tube excels in the mids, and mid highs. The top end is smooth but not too extended. I consider this tube the Marshall sound. Sounds great a low volume but really comes to life as you crank it. It breaks up earlier than say 6L6 tube. The EL34 is a great rock tube. Thanks formthe feedback, highly appreciated!!  But are you speaking specifically about this manufacturer ELECTROHARMONIX or the EL 34 type tube only? |
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Post by Deleted on Aug 12, 2016 22:46:23 GMT -5
EL34 has a warm British tone to my ears. The bass has good response but this tube excels in the mids, and mid highs. The top end is smooth but not too extended. I consider this tube the Marshall sound. Sounds great a low volume but really comes to life as you crank it. It breaks up earlier than say 6L6 tube. The EL34 is a great rock tube. Thanks formthe feedback, highly appreciated!! But are you speaking specifically about this manufacturer ELECTROHARMONIX or the EL 34 type tube only? Svetlana EL34 tube. |
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Post by novisnick on Aug 16, 2016 19:08:27 GMT -5
audiobill I want double my money back!!  The fantastic sound of the electric guitar is so beautiful distorted on this LZ LP that im in tears grinning from ear to ear. OH the joy pain this amp brings me!!  The vinyl sides are blowing by so quickly!! Wow! As if Im at the recording screaching of the original tracks!! What year is this? 
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Post by novisnick on Aug 25, 2016 10:42:53 GMT -5
Surveillance camera photoes of the crime scene after the partial dismemberment !!!  More photos from the hostage takers! Blood soaked carpets!!  OH! The humanity!!! The Horror!! What will become of our little one??? |
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Post by audiobill on Aug 25, 2016 11:02:04 GMT -5
Boomzilla will have his way with her.....
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Post by monkumonku on Aug 25, 2016 11:04:33 GMT -5
Boom will have his way with her.....  |
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Post by novisnick on Aug 25, 2016 21:50:30 GMT -5
Going home!  |
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Post by novisnick on Aug 26, 2016 23:37:33 GMT -5
And now it begins!   |
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Post by bluemeanies on Aug 27, 2016 7:13:49 GMT -5
GOOD LUCK NICK!
Have fun and when you think you need a beak...you usually do!💤
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Post by Chuck Elliot on Aug 27, 2016 9:51:32 GMT -5
Please, lots of build pictures and comments if you have time. ST-70 or ST-120?
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Post by Boomzilla on Aug 27, 2016 10:32:41 GMT -5
audiobill is currently assembling novisnick's new ST-120. Nick formerly had a (copper-plated-chassis, very-gussied-up) ST-70. Having liked the tube sound, Nick's moving on up. Being in the right place at the right time, I'm the beneficiary of Nick's move, and will shortly have that very same ST-70 in my system. Whether or not I keep it is dependent on whether it can out-sing my current 12 watt Heathkits. I have some (serious) doubts, but I'm willing to be surprised. Nick's Paradigm Studio 100 speakers, being about 6dB less sensitive than my Tekton Pendragons, can probably use the extra power, so I can understand Nick's choice. But I'm finding that with the 'Dragons, even the low-output Heathkits play as loudly as I'd like. So even the 35 watt ST-70 will be gross overkill (in terms of power) for my speakers. I was, initially, highly skeptical of "tube sound" through the (very revealing) Pendragons, expecting that the bass and treble softness, alone, would make any tube amp an unsuitable match. I threw the Heathkits at the speakers (figuratively) on a whim and - well... I'll let garbulky post his impressions lest my comments affect your impressions of his. Even so - lots of fun to be had here!
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Post by novisnick on Aug 27, 2016 10:33:58 GMT -5
Please, lots of build pictures and comments if you have time. ST-70 or ST-120? Dr. Frankinstien audiobill creating my monster baby!  |
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Post by novisnick on Aug 27, 2016 10:45:45 GMT -5
Please, lots of build pictures and comments if you have time. ST-70 or ST-120? Heres a lttle for you chuck These are naked pictures, please avert the younger members eyes!   |
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Post by simpleman68 on Aug 27, 2016 10:50:49 GMT -5
I was, initially, highly skeptical of "tube sound" through the (very revealing) Pendragons, expecting that the bass and treble softness, alone, would make any tube amp an unsuitable match. I threw the Heathkits at the speakers (figuratively) on a whim and - well... I'll let garbulky post his impressions lest my comments affect your impressions of his. This is what I like the most about the tube amp. The Whispers are incredibly revealing and I think the tube amp really tamed the tweet/super tweets with a very accurate, yet laid back tone. What I can't speak to is how they'll affect your mid bass as Legacy uses built in ICE amps driving <300 hZ. When I get the ST70 back I'm going to put in on my old Polk RTi A9s to hear how they handle the bass. Would like to hear the Pendragons sometime. Forum member Thompson is 10 minutes from me. I'll have to give him a shout soon.  Scott |
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