[LoryWiv]

Yet another great sounding combo on Elise.

I probably should know but can you say what tubes those are? Thank @barontan2418 s.

 

[LoryWiv]

GE 7581A driven by Sylvania 6SN7 GT, really enjoying the vintage sounds...perhaps a little less refined than my quad of GL KT88's but there is musical magic here.

 

[barontan2418]

I probably should know but can you say what tubes those are? Thank @barontan2418 s.

GEC KT66's driven by the Russian GU50's. These tubes require external power. I've been trying various tube configurations with these on my Euforia but this is first time on Elise.

 

[OctavianH]

Nothing new, but some good white beer from the northern Austria.

 

[LoryWiv]

Well, GE 7581A's are back in the driver's seat, GL KT88 powers, and definitely improving: bass tightening, treble extending and mid grain receding. If only it could make my white's whighter and my color's brighter.

Seriously though, the GE's are sounding good. I have been wanting to try Tung Sol KT150 powers and pulled the trigger today (damn EBay coupon... must resist next time.) They require 1.7 to 2 A of heater current, so even assuming the higher end should be safe in Elise with 2.0 x 2 = 4.0 A driving 2X GE 7581A at 0.9 A (1.8 pair) --> 5.8 A total. I believe Elise can handle up to 6.5 A, correct?

I read on another site (don't know if it's ok to mention so let's just call it audiog*n) that KT150 can be hard to bias correctly, due to needing 600 V at plate, but Elise autobiases powers, I believe. Can anyone verify that these are compatible as powers in our amp?

 

[OctavianH]

KT150 are fine. I tried them without problems with KT66 as drivers:

Everything sounds as if on steroids, these are very energetic powers.

 

[LoryWiv]

KT150 are fine. I tried them without problems with KT66 as drivers:

Everything sounds as if on steroids, these are very energetic powers.

I could use a jolt of energy about now, to counter the pandemic blues. Thanks, @OctavianH. Be well.

 

[OctavianH]

I have to admit I have not done completely my homework related to KT77 and KT150. But what I can say both are very interesting subjects. I still have on my shopping list a pair of NOS KT77 but at the moment my other project keeps me and my wallet busy.

 

[Lord Raven]

Hi Elise owners, a quick question about Elise power rating. It says in specs that it does 200mW but at what Ohms? My HD800 is 300Ohms, how much power is Elise out putting? Thanks

 

[Lord Raven]

Hi Elise owners, a quick question about Elise power rating. It says in specs that it does 200mW but at what Ohms? My HD800 is 300Ohms, how much power is Elise out putting? Thanks

Anyone?

 

[barontan2418]

Anyone?

Sorry Lord Raven I cannot answer your question however I have HD800 300 ohm and Beyer T1 600 ohm and both Elise and Euforia drive both headphones exceptionally well. Dependent on tube choice you will never need to go past 12:00 on the volume dial.

 

[Lord Raven]

Sorry Lord Raven I cannot answer your question however I have HD800 300 ohm and Beyer T1 600 ohm and both Elise and Euforia drive both headphones exceptionally well. Dependent on tube choice you will never need to go past 12:00 on the volume dial.

Thanks. I had both these pairs and never had power shortage. It's just that someone asked me this on HD800 thread and couldn't find the right answer.

 

[LoryWiv]

KT150 are fine. I tried them without problems with KT66 as drivers:

Everything sounds as if on steroids, these are very energetic powers.

Hey @Octavian I received the Tung Sol KT150's, driven by GE 7581A. Compared to the Genalex GL KT88 powers using same drivers, I agree these bring the energy. Leading edge of notes is incisive and clean, almost percussive as if you can perceive the driver excursion like with speakers. Surprisingly, it is not fatiguing though, at least not yet, perhaps because the note weight is solid.

Tonally, I am loving the upper mids and treble, presented more forward than with the KT88 and really well-extended in a bell-like way, without ever veering into shrill or piercing. As yet I'm less certain of the lower mids and bass, still evaluating. The mids layer well with the rest of the frequencies but could use more liquidity / euphonic warmth; they sound a bit clinical thus far. Bass quality is fine and tuneful but doesn't hit as hard as KT88, surprising given how beefy the KT150's are billed as. Back to good news, however, is that instrument separation, air and stage are spot on for my taste. Elements of the music are distinct but integrate in a coherent and natural way.

Early days and will continue to assess. The tubes had 24 hour burn in on arrival and I've added another 8-10 in my Elise. It'll be interesting to see what further burn-in (tubes / my ears or both) will bring.

 

[OctavianH]

I will put back my KT150 as soon as I get rid of my current problems. In the meantime, listen to your tubes on proper music:

 

[LoryWiv]

I will put back my KT150 as soon as I get rid of my current problems. In the meantime, listen to your tubes on proper music:

Current problems....other than the global pandemic? Hope you get it sorted.