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Jeff Bagby Helios speaker

As expected - bloody good! Perfect combination.

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(Excuse the temporary speaker stands!).
 

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Wow, those are gorgeous. stretchneck, you are making me very jealous with those speakers and the SIT-3. Did the amp narrow the gap between the helios and the LX521? I agree that being able to change amps more conveniently and invest in a better two channep amp is a huge advantage.
 
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The SIT-3 is very special, Helios work well with them upto a point, but realistically (In my opinion) F5 Turbo, BA3 or XA series would be better. Helios like an amp with grunt.

It takes A LOT to better LX521 - F5 Turbo (or equiv) and Helios would likely do this. 85dB sensitivity on the Helios is ok, the SIT3 will drive them, I can hear the magic, but I feel there is more to give.

FYI Raelman sold his LX521’s before the Helios, he used tube amps on the Helios so likely more wattage. I have tried tube amps before, but I can’t get on with their lack of image specifity… I like the pin point imaging of solid state.

Shortly I will decide to either keep these Helios (best 2 way I’ve heard) and change amps (SIT3 is the best solid state I’ve heard..arg!) vs keeping the SIT3 and building a very very expensive speaker such as Troels Ellipticor 3… I think this is the only way you’ll better the Helios (high sensitivity mid & tweeter, separately powered woofer).

I’m learning lots on the journey. If anyone want a pair of Helios drop me a pm in case I take the option to spend lots of money… I’ll need the funds 🙂
 
I see. That makes sense. I haven't used any speakers below 88db sensitivity so I haven't experienced that problem. I have a F6 and love it so far. I have an itch to build some different boards. Right now I am listening to some ~90db speakers and they are able to rattle the pictures on the wall using the F6... lol

I like the imaging of SS as well. There are few 2-ways that I have liked. I suspect the Helios may be far different than anything that I have heard though.

As much as I like the idea of the SIT3, the speakers that you have are beautiful and very unique. Nelson Pass is still making amplifier designs doesn't sent o be close to running out of ideas.

Troels Ellipticor 3 looks like a wonderful speaker. I love the simple crossover. Simple crossover and a simple amp could be a nice recipe.