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2359glenn | studio - Page 156

post #2326 of 10634
Quote:
Originally Posted by Xcalibur255 View Post

Quote:
Originally Posted by Ultrainferno View Post


Edit. Btw, I found a huge stock of almost 200 C3G tubes. if anyone's interested (Do I hear a "group buy" request? wink.gif )

Can you give me any more details?  I certainly don't think we need that many but if the pricing is good it is worth looking into.  It would also be good to know the production origin and maker (Siemens, Telefunken, ITT-Lorenz), some of these tubes are from the German Post lifetime buyout production run and some are military stock.  In this case the military stock is the less desirable stock to have contrary to normal tube logic.

I'll do a group-buy even though I don't have a tube amp. For $5 to $15, I'm in.

post #2327 of 10634
Thread Starter 

Well stated Xcalibur255; Clayton SF. I was actually surprised how good the Denon's @ 25 ohms sounded (behaved?biggrin.gif). Despite, several around Head-Fi telling me I was wasting time because of the whole impedance mis-match thang. Both Glenn's amp and the Denon deserve credit 'cause the pairing never stumbled. I believe in trying things out for myself anyway...

 

Also had a chance to run DT-880's @ 600 ohm; K701's @ 60 ohms(I think?).


Edited by Silent One - 3/23/13 at 4:28pm
post #2328 of 10634
Thread Starter 
Quote:
Originally Posted by wolfetan44 View Post

Quote:
Originally Posted by Xcalibur255 View Post

Quote:
Originally Posted by Ultrainferno View Post


Edit. Btw, I found a huge stock of almost 200 C3G tubes. if anyone's interested (Do I hear a "group buy" request? wink.gif )

Can you give me any more details?  I certainly don't think we need that many but if the pricing is good it is worth looking into.  It would also be good to know the production origin and maker (Siemens, Telefunken, ITT-Lorenz), some of these tubes are from the German Post lifetime buyout production run and some are military stock.  In this case the military stock is the less desirable stock to have contrary to normal tube logic.

I'll do a group-buy even though I don't have a tube amp. For $5 to $15, I'm in.

 

If you're not careful, you're gonna end up a Tube addict. wink_face.gif Tell him, rosgr63!

post #2329 of 10634
Thread Starter 
Quote:
Originally Posted by Xcalibur255 View Post

Quote:
Originally Posted by wolfetan44 View Post

Is the OTL amp Glenn's known for good for all impedances? I would want it to work well with a Grado, I think thats the only low impedance headphone I would have..

 

I find my amp to perform very well with low impedance phones.  If they are high sensitivity you might get some hum.  There was just a whisper of it with my K701s, I tried my tv phones (JVC HARX900) and there was definitely hum there.  Even then the JVCs sounded good, much better than they do on anything else I could play them on.  But if you are picky about hum it is something to keep in mind. 

 

OTL amps by their nature work better with high impedance loads, but this particular design has very good drive even with low impedance loads.  On paper the K701 was never a good match for my amp but I thought they sounded amazing together, I actually wish more people could hear this I think even K701 haters would be surprised.  Right up to the day they got blown up I never stopped being impressed.

 

The amp drives the 50ohm LCD-2s with finesse and authority too, no hum and no sense at all of them being underdamped or underpowered.  The dynamics are amazing.  I also (just a couple of days ago actually) decided to get a more traditional dancing partner for the OTL in the form of some 600 ohm Beyer DT880s.  Even without break-in the combo already sounds good and it was improving by the hour as I was playing them last night.

 

How is your run with the LCD-2, by the way... forgot to ask, emerging?

post #2330 of 10634
Quote:
Originally Posted by Silent One View Post

Well stated Xcalibur255; Clayton SF. I was actually surprised how good the Denon's @ 25 ohms sounded (behaved?biggrin.gif). Despite, several around Head-Fi telling me I was wasting time because of the whole impedance mis-match thang. Both Glenn's amp and the Denon deserve credit 'cause the pairing never stumbled. I believe in trying things out for myself anyway...

 

Also had a chance to run DT-880's @ 600 ohm; K701's @ 60 ohms(I think?).

How is the DT880 with his OTL? I have a DT880/600 that I love dearly, but I need a different amp from this O2. JUST REALIZED. Ah, darn. I need a new DAC. I guess no more new headphones this year. 

post #2331 of 10634

Any recommendations on a DAC? I want something thats balanced.


Edited by wolfetan44 - 3/23/13 at 4:41pm
post #2332 of 10634
Quote:
Originally Posted by Silent One View Post

 

How is your run with the LCD-2, by the way... forgot to ask, emerging?

Getting better, and thanks for asking!  biggrin.gif  They take longer to break-in than I was led to believe, once the imaging finally locked in I stopped hating them.  Learning how to wear them right was also an adventure.  My listening sessions are getting pretty good with them now, I don't regret buying them anymore.  The weird resonance on piano is still there, reduced but present.  I came to the conclusion it is from existing issues in the recording being amplified by internal resonance in the leather earpads at certain frequencies.  Other owners have noted the same effect.

 

I did break down and order a cable from Frank.  I don't believe cables improve sound quality, but the stock cable is heavy and clumsy and I wanted to get something lighter that didn't slap my shoulders when I move my head.  That, and the stock phone plug sticks out a country mile from the jack, the weight of the cable pulls down on it so hard it causes contact pressure issues in the plug if I don't prop the cord up.  Franks cables have a nice short VIAblue jack so both problems get solved by a reasonably priced cable. 

 

His lead time is a whopping 9 weeks sadly.  I would have ordered anyway but it would have been good to know before hand.

 

Trying the Beyers out for the first time was a stark contrast..... they weight literally nothing compared to the LCDs, it's almost silly.

post #2333 of 10634
Quote:
Originally Posted by wolfetan44 View Post

How is the DT880 with his OTL? I have a DT880/600 that I love dearly, but I need a different amp from this O2. JUST REALIZED. Ah, darn. I need a new DAC. I guess no more new headphones this year. 


They're brand new so I cannot judge yet but my first listens were positive even with the cans being green.  My initial reaction was "why do people say these are bright?"  They are actually surprisingly similar to the LCD-2 in tonal balance on my setup, aside from the stronger presence bump in the upper treble region with gives a bit more sparkle and the obviously large difference in deep bass energy.  I checked my sibilance tracks and found them more forgiving than the K701s were overall.

 

On paper these phones are ideal for an OTL.  I can say they are dead silent, no hum and even my noisy 5998 tube doesn't get its sqeaks and hums passed through on the Beyers.

 

I'm really tempted to re-try the 6BL7s in the output sockets, I think they will fare better with 10x more impedance load and might sound great.


Edited by Xcalibur255 - 3/23/13 at 4:45pm
post #2334 of 10634
Quote:
Originally Posted by Xcalibur255 View Post

Quote:
Originally Posted by wolfetan44 View Post

How is the DT880 with his OTL? I have a DT880/600 that I love dearly, but I need a different amp from this O2. JUST REALIZED. Ah, darn. I need a new DAC. I guess no more new headphones this year. 


They're brand new so I cannot judge yet but my first listens were positive even with the cans being green.  My initial reaction was "why do people say these are bright?"  They are actually surprisingly similar to the LCD-2 in tonal balance on my setup, aside from the stronger presence bump in the upper treble region with gives a bit more sparkle and the obviously large difference in deep bass energy.  I checked my sibilance tracks and found them more forgiving than the K701s were overall.

 

On paper these phones are ideal for an OTL.  I can say they are dead silent, no hum and even my noisy 5998 tube doesn't get its sqeaks and hums passed through on the Beyers.

Green? Picture?

post #2335 of 10634
Quote:
Originally Posted by wolfetan44 View Post

Green? Picture?


Green meaning unused/not broken in.  It will be a couple hundred hours of use before they can be judged fairly.

post #2336 of 10634
Quote:
Originally Posted by Xcalibur255 View Post

Quote:
Originally Posted by wolfetan44 View Post

Green? Picture?


Green meaning unused/not broken in.  It will be a couple hundred hours of use before they can be judged fairly.

OOOH. I'm not sure if I should feel stupid or not..

post #2337 of 10634

Nah. Don't feel stupid because you're not.

There are so many terms thrown around here--with good intentions to communicate of course--some are bound to fly over your head. A lot has flown over me and under me since I joined Head-Fi.

post #2338 of 10634
Thread Starter 

With patience, audio can be fun and rewarding...

post #2339 of 10634
Thread Starter 
Quote:
Originally Posted by Xcalibur255 View Post
Warning: Spoiler! (Click to show)

 

Quote:
Originally Posted by Silent One View Post

 

How is your run with the LCD-2, by the way... forgot to ask, emerging?

Getting better, and thanks for asking!  biggrin.gif  They take longer to break-in than I was led to believe, once the imaging finally locked in I stopped hating them.  Learning how to wear them right was also an adventure.  My listening sessions are getting pretty good with them now, I don't regret buying them anymore.  The weird resonance on piano is still there, reduced but present.  I came to the conclusion it is from existing issues in the recording being amplified by internal resonance in the leather earpads at certain frequencies.  Other owners have noted the same effect.

 

I did break down and order a cable from Frank.  I don't believe cables improve sound quality, but the stock cable is heavy and clumsy and I wanted to get something lighter that didn't slap my shoulders when I move my head.  That, and the stock phone plug sticks out a country mile from the jack, the weight of the cable pulls down on it so hard it causes contact pressure issues in the plug if I don't prop the cord up.  Franks cables have a nice short VIAblue jack so both problems get solved by a reasonably priced cable. 

 

His lead time is a whopping 9 weeks sadly.  I would have ordered anyway but it would have been good to know before hand.

 

Trying the Beyers out for the first time was a stark contrast..... they weight literally nothing compared to the LCDs, it's almost silly.

 

 

 

Whew!

beerchug.gif

post #2340 of 10634
Thread Starter 
Quote:
Originally Posted by wolfetan44 View Post

Quote:
Originally Posted by Silent One View Post

Well stated Xcalibur255; Clayton SF. I was actually surprised how good the Denon's @ 25 ohms sounded (behaved?biggrin.gif). Despite, several around Head-Fi telling me I was wasting time because of the whole impedance mis-match thang. Both Glenn's amp and the Denon deserve credit 'cause the pairing never stumbled. I believe in trying things out for myself anyway...

 

Also had a chance to run DT-880's @ 600 ohm; K701's @ 60 ohms(I think?).

How is the DT880 with his OTL? I have a DT880/600 that I love dearly, but I need a different amp from this O2. JUST REALIZED. Ah, darn. I need a new DAC. I guess no more new headphones this year. 

 

Honestly, I thought it was good but not sure if the cans were my tea. I really think I needed to live with them for a couple of moons. I enjoyed the silent background they provided, that was YUM! One thing that I practice often is revisiting gears when I'm able. One's emotions and life experiences can change impressions on a dime!

 

Take the HE-6 for example. I was fortunate to audition them for a couple of moons some months apart. And with some of the same gear in place, my experience differed with the same member's HE-6. It happens...


Edited by Silent One - 3/23/13 at 5:42pm
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