Feliks-Audio ELISE...New thread.

Feb 22, 2025 at 6:18 PM Post #13,891 of 13,924
PM @Deyan and he will get you sorted. most of us here on headfi get our adapters from deyan and he is the best, IMO.
Thanks and done! Do you know if using this adapter with KT88 tubes puts a larger load on the Elise or requires more voltage? Appreciate any info. from folks with expertise.
 
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Feb 22, 2025 at 6:54 PM Post #13,893 of 13,924
Hello everyone, I am considering getting this amp. From my understanding, and I am still learning, the Elise should pair well with the Byerdynamic 880 (600 ohm) and Sennheiser 6 series. I currently have a Valhalla 2 and an Auris HA-2 SE+. How would the Elise compare to either? Thanks in advance.
 
Feb 22, 2025 at 6:59 PM Post #13,894 of 13,924
Thanks and done! Do you know if using this adapter with KT88 tubes puts a larger load on the Elise or requires more voltage? Appreciate any info. from folks with expertise.
Not sure about the technical aspects, Kt88 with deyans adapters are perfectly safe to use with the Elise. I have used it myself for over 4 years when I had the Elise and now I use it with my Euforia Evo and it's Rock solid. Also, I know from first hand experience that the kt88 produces a lot less heat in my Elise/Euforia than stock 5998/6as7g variant. Does that mean it uses less current/voltage? That I can't tell you, but I know it's safe to use it.
 
Feb 22, 2025 at 8:06 PM Post #13,896 of 13,924
True! Thanks, again. Just want to protect my new baby :)
I know exactly what you mean & false information or guessing is the last thing you need.
If you contact feliks audio they will say only to use the tubes they have mentioned but as I have found out there are others that are safe.

Feliks have to stick by their selection for warranty & safety issues which I thoroughly understand. They don't have time to experiment unfortunately.
 
Feb 22, 2025 at 8:13 PM Post #13,898 of 13,924
Hello,
you should pay attention to one thing.
The Euforia and Elise have not been designed for KT66/88 tubes.
You must remember not to exceed the heating limit that is specified.
With the Euforia it is 7 A rather 6 A. With the Elise I don't know exactly.
This means that it is possible to use 4 KT 66/88 tubes, but it is very borderline.
It is better to use 2 or 4 Deyan adapters.
2 would be suitable for KT66/88 as well as EL34 tubes, the other 2 adapters would be for 6V6 as driver tubes.
These can also be used and offer a great sound, even better than 6SN7.

What also works are adapters 6SN7 to 12AU7, since the 12Au7 also have 20 mu amplification like 6SN7 and the market is just as full, it offers you good possibilities if you like the sound from the 12Au7.
KT88 Ps Vane Horizon are great tubes as well as Raytubes KT88 Select.
Ideally these tubes should be paired with Nos driver tubes.

Back to the heater, it is important that you do not exceed the amp limits.
There have been cases where some people have overdone it with 4 KT88 tubes and ruined the amp.
You should always be aware of this.
In an emergency, check how many amps the heater needs from the tube you want to use.
 
Feb 23, 2025 at 1:13 PM Post #13,900 of 13,924
Hello,
you should pay attention to one thing.
The Euforia and Elise have not been designed for KT66/88 tubes.
You must remember not to exceed the heating limit that is specified.
With the Euforia it is 7 A rather 6 A. With the Elise I don't know exactly.
This means that it is possible to use 4 KT 66/88 tubes, but it is very borderline.
It is better to use 2 or 4 Deyan adapters.
2 would be suitable for KT66/88 as well as EL34 tubes, the other 2 adapters would be for 6V6 as driver tubes.
These can also be used and offer a great sound, even better than 6SN7.

What also works are adapters 6SN7 to 12AU7, since the 12Au7 also have 20 mu amplification like 6SN7 and the market is just as full, it offers you good possibilities if you like the sound from the 12Au7.
KT88 Ps Vane Horizon are great tubes as well as Raytubes KT88 Select.
Ideally these tubes should be paired with Nos driver tubes.

Back to the heater, it is important that you do not exceed the amp limits.
There have been cases where some people have overdone it with 4 KT88 tubes and ruined the amp.
You should always be aware of this.
In an emergency, check how many amps the heater needs from the tube you want to use.
I don’t see a heating or amp limit? For example, where did you find the heating/amp limit on the Euphoria? I can contact upscale audio too if needed. I do see a power output of 200mW but I think that’s different.

I only plan on using ET88 power tubes and sticking with the stock 6SN7 variety of driver tubes.

Btw, very first impressions of Linlai E-6SN7 vs 6SN7 Ray tubes is Linlai sound noticeable much better—smoother, more definition, separation, clarity, etc.

I also have some 6SN7 Psvane Art tubes to try out soon, will report back. Perhaps I’ll just stick with swapping out the driver tubes if it sounds good enough to me.
 
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Feb 23, 2025 at 1:46 PM Post #13,901 of 13,924
I don’t see a heating or amp limit? For example, where did you find the heating/amp limit on the Euphoria? I can contact upscale audio too if needed. I do see a power output of 200mW but I think that’s different.

I only plan on using ET88 power tubes and sticking with the stock 6SN7 variety of driver tubes.

Btw, very first impressions of Linlai E-6SN7 vs 6SN7 Ray tubes is Linlai sound noticeable much better—smoother, more definition, separation, clarity, etc.

I also have some 6SN7 Psvane Art tubes to try out soon, will report back. Perhaps I’ll just stick with swapping out the driver tubes if it sounds good enough to me.

This info comes from the forum.
But you can ask upsacale.
The Ray are warmer and more musical with good technical skills.
The Linlai Elite are a bit more technical as well as treble but good and less warm.
By the way, would always combine Modern stock with Nos.
So that it doesn't sound too sterile and unphonic, no matter in which order.
The Ray Select and Ps Vane Horizon make the EH look old compared to the Kt88 version.
Ray and Ps vane are the best new stock I've heard and tie in very well with the old stock.
There's very little missing that makes them sound like Nos.
 
Feb 23, 2025 at 2:44 PM Post #13,902 of 13,924
Hmmm…offhand to my ears the Ray select 6SN7 tubes sounded warmer but not much else in comparison to the Linlai E-6SN7 which, as I mentioned, sounded smoother with more definition, separation, clarity, overall musicality, nice balance of warmth, etc. It was a quick first impression, but it struck me right away when I listened to the Linlai this morning. Looking forward to listening to the Psvane Art 6SN7.

I’m now starting to feel like rolling the driver tubes is going to be enough unless somebody can convince me that upgrading the power tubes would bring substantially more value.

I’d like to avoid going down a tube rabbit hole :) and I understand there’s a lot of misinformation out there so I’m trying to soak it all in and make the best moves.… I don’t think you’ll catch me mounting quad power tubes on the Elise like I see in this thread, haha.
 
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Feb 25, 2025 at 4:48 PM Post #13,903 of 13,924
PXL_20250225_214435521.NIGHT.jpg


Arrived about 20 minutes. Fast shipping from Upscale again. Let the tubes warm up for 10 minutes. Listening to Albert King via the DT 880 (600 ohms) UK Custom Cans, connected via the Schiit Bifrost 2/64. Delightful. Cannot wait to do tube rolling in a month's time. :D

Edit:
Alright, so had now three days with the amp and I absolutely love it. I want to already start experimenting with tube rolling. I am looking for a rich, warm, mid-range driven sound with detail popping. Any recommendations as for driver tubes?

Also, has anyone tried the Ray Tubes Select and Reserves, and if so, what's the difference in sound between them as applied in the Elise? Thanks in advance.
 
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Mar 1, 2025 at 1:11 PM Post #13,904 of 13,924
As a new owner slightly surprised how much swapping drivers can impact the sound. For example, I was underwhelmed with the Apos Select 6SN7 (sorry Apos—really nice marketing but poor sound definition) but noticed nice results with the 6SN7 PSVANE MARKII CV181-TII, Psvane Art Series, Linlai E6SN7, and have some Linlai ZX-6SN7 on the way.

Out of the box I have to say the Linlai E6SN7 were really impressive for my tastes— super smooth while being well defined, clear, separated, etc. The Art Series sounded great too, a more delicate type of sound I would say and very capable. The CV181’s seemed the most neutral which can be nice too.

I have some RCA 6AS7G Grey Plates on the way as I’m curious about power tubes. Got some new ones on eBay for $100 and I see them for $300 on the woo audio website. It’s weird as I don’t see specifically 6AS7 socket savers on the web? I’m assuming you may need to buy a conversion socket saver? Is it the same eight pin type as a 6SN7 socket saver?

On Amazon: https://a.co/d/gcMvlGu
 
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Mar 1, 2025 at 1:18 PM Post #13,905 of 13,924
As a new owner slightly surprised how much swapping drivers can impact the sound. For example, I was underwhelmed with the Apos Select 6SN7 (sorry Apos—really nice marketing but poor sound definition) but noticed nice results with the 6SN7 PSVANE MARKII CV181-TII, Psvane Art Series, Linlai E6SN7, and have some Linlai ZX-6SN7 on the way.

Out of the box I have to say the Linlai E6SN7 were really impressive for my tastes— super smooth while being well defined, clear, separated, etc. The Art Series sounded great too, a more delicate type of sound I would say and very capable. The CV181’s seemed the most neutral which can be nice too.

I have some RCA 6AS7G Grey Plates on the way as I’m curious about power tubes. It’s wired as I don’t see specifically 6AS7 socket savers on the web? I’m assuming you may need to buy a conversion socket saver? Is it the same eight pin type as a 6SN7 socket saver?
Thank you so much for sharing your impressions. This is immensely helpful!
 

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