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I plopped in the bugle boy tube a couple of days ago and then noticed what I thought as irritating high frequencies (from the Audeze LCD-2 no less!!!). Either the unit is still undergoing changes or my hearing is a bit off cause I think I'm having a bit of congestion and it's affecting my hearing. Maybe both. I swapped the Amperex 7308 back in and at first I thought it sound okay but nope, it's still sibilant at times.
Edit; Question for Vinny that's not related to tube rolling. How much juice are the LCD-2's getting with the Isabellina?
Vinnie:Is this the tube? http://www.upscaleaudio.com/tubes/6922/dario-7308.html
With the Isabellina "Driver Grade" is okay for tubes? No need for the Gold?
Hello everyone, I just got a Miniwatt France 7308 tube for my Isabellina LFP-V HPA! This tube is great! The soundstage IMO got wider and the the bass become better and more focused, then my Mullard CV2492 I was using before. Sorry i am really bad at describing things. Anyway just wanted to say that i really enjoy this new tube and hope some day to get an Amperex pinch waist. Thanks Vinnie for posting input on the tubes, its a great resource for me since I have no real experience with tubes. Have a wonderful day everyone
While it CANNOT currently be used in the LFP-V Edition products, does anyone haveexperience with the 6H30 (Super Tube) family of tubes compared to the 6922 family? They are taller and draw twice the heater current... with modification to the LFP-V Tube Stage (and a hole on the cover to allow this tube to fit), I know it can work. In time, I'd like to see what it can do
All,I'll be doing some serious listening to the various tubes I have in my collection and will be posting about my findings, starting with this post. These are just my findings and please do not take themas a formal review. I also hope to hear the opinion of others using these tubes (and others I have not tried) in their LFP-V Edition Red Wine Audio component(s). Thank you for your posts!System: Macbook connected to Isabellina HPA LFP-V Edition dac/headphone amp (via USB) to Audez'e LCD-2 headphones. I decided I wanted to use only one RWA LFP-V component and headphones (to eliminate room variables and the other components) for doing these tube evaluations. So the Isabellina HPA LFP-V was the best choice, and the LCD-2s are definitely one the very best headphones I've listened to on the HPA...Lets start with the EAT Cool Valve ECC88:It does fit in the LFP-V Edition tube stage board (but cannot be used in the Isabella preamp because the diameter is too large due to the heatsink).The Sound- Very tight and punchy bass, with plenty of weight- Excellent dynamics. Very lively and exciting!- A more forward midrange- A clean top end (not bright or edgy, but not what I would call "sweet"). Plenty of detail.Other CommentsNot what I would call a seductive sound, if that is what you are looking for. But ifyou need a very dynamic and clear sound, without the grain, this is a great choice. Not quite what I would call "neutral" as the mid-range is a little forward and the the bass has a little extra weight - but I can see this working well where the listener is looking for more "boogie factor" to the sound! More to follow....
Are there any other tubes in the 100-200 dollar range that should be considered? I'm looking to improve upon all aspects of the frequency spectrum without adding grain or forwardness to the sound.
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