I have Magneplanar 1.7 speakers which present a much more difficult load than the QUADS. I can strongly recommend the NuPrime STA-9 power amp. I use a pair of these in mono mode which output just under 300w. They provide a vice like grip on the Maggies with a very smooth tube-like sound. NuPrime have recently introduced a slightly lower powered model (the STA-6), which I am sure would be great with the QUADS.
I have a friend with the Magnapan 1.7i speaker, BOSC had no issues with those.
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A pair of these is on their way to Oli for evaluation.
Also if you are interested I posted the latest performance measurements here:
https://www.audiosciencereview.com/f...-2#post-210892
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An awesome review for the BOSC amp:
"Class-D amplifiers generally trigger reactions and opinions of a generic, mass-market sound. And I’ll admit, I tend to not be too curious about anything based around that amplification method. But Leonid (Leo) Ayzenshtat’s Class-D amplifiers continually force me to think differently. They prove that it isn’t about the type of thing, but rather about how skillfully a thing is made."
"I wanted to stop my heart so I could hear the music better. I was being sucked in, pushed out, and unable to focus on anything else but the music. There were all the little bird-like chimes, dancing between clicks and pings and bongs of xylophone harmonics with dry reed raspy sounds zooming in and out, floating on top of deep rolling strings and organ-like bass. I didn’t want to miss a moment of it."
Read the full review here:
https://theaudiobeatnik.com/reviewin...sc-monoblocks/
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Kickstarter launching next week. Check out the project video:
https://youtu.be/qo4ssUfE4rg.
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www.orchardaudio.com/bosc
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Kickstarter is live! Grab the early bird special while supplies last:
https://www.kickstarter.com/projects...ier?ref=1hvtb6
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