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I've heard tales of the Atma-Sphere MP-1 preamplifier driving 32-ohm speakers. It has an output impedance of 30 ohms.

The less expensive MP-3 has an output impedance of 250 ohms. It will work...

Welcome Dave... we meet again! Good to see you here. Very best of luck with your speaker endeavor!

Agree 100%.

Imo using diffraction is the wrong way to get pattern control. The slightly delayed re-radiation off the diffractive discontinuity has a psychoacoustic downside that imo outweighs its...

If the problem is indeed off-axis radiation pattern "flare" at the bottom end of the tweeter's range, then the Spatials should be a significant improvement in that area, as they have very good...

Yes, and unfortunately that means my perspective is likely to be skewed... I tend to mostly look for the role speakers might play in this or that problem. I'm kinda like the guy whose only tool is a...

What you're hearing may be a radiation pattern issue.

The Micro Utopias combine a 6" woofer with a 1" tweeter. I would guess the crossover is in the 2.5 kHz ballpark, but the exact frequency...

I've been selling my own brand direct since 2006, and for most of that time one dealer in particular has let me know repeatedly that he'd like to sell my speakers. Up until recently I haven't been...

Since this thread has become a commentary on reviewers, I'd like to come down on the side of welcoming and treating them with the same respect and courtesy that is extended to other members. I...

I have zero experience with wireless subs, sorry.

But I do have experience with multisub systems. I use four passive subs driven by a single shelf-mounted amplifier. The four subs are wired in...

Thank you, Cyril! Yes my speakers tend to be tube-friendly, and quite a few people use them with specialty tube amps like SETs and OTLs. But they'll work just fine with solid state as well, either...

So I go to the "Forum Rules" page and this is the first thing I see:

"If you are retailer or manufacturer, you are encouraged to promote your business."

Mike, you had me at hello.

It is...

Walter Fields of NBS thinks well outside the box when it comes to speaker design. He has intentionally been secretive about what's going on with the Butterfly so out of respect I'm not going to try...

Timbre is significantly influenced by not only the first-arrival sound, but also what's happening in the reverberant field. That's why we listen to piano recitals in recital halls rather than in...

I would go with the 80 degree location and count myself a thousand dollars richer. I'd go with monopoles, positioned as close to the ceiling as you reasonably can, each one aimed at the farthest...

In my experience, in order to "get lost in the music", two things have to happen.

First, the system has to do something so well that it sounds real in that area. It can be timbre, coherence,...