BMC ARCADIA Bi-polar speakers

Selling a pair of BMC Arcadia speakers in gloss black. I'm the second owner of these amazing speaker and they were purchased from former Stereo Times contributing reviewer, Norm Luttbeg. I'm reluctantly selling these only because I need to downsize. These are incredible speakers that offer the openness and resolution of a planar with the dynamics and bass capability of a dynamic speaker.  I've owned multiple speakers costing over $60,000/pr and the performance of these speakers is right there with them. Their retail value of $40k is not some made up number but based on real performance value.

You can see and hear these actual speakers on these videos:
https://www.facebook.com/HighFidelityCables/videos/musically-magnetic-experimentations-at-norm-luttbegs-house/1226487977476760/
https://www.facebook.com/HighFidelityCables/videos/part-2-musicallly-magnetic-madness-with-norm-luttbeg/1226511137474444/

A recent review can be found in on the German audio site (you'll have to do a google translate to English)
https://www.likehifi.de/test/lautsprecher/test-b-m-c-audio-arcadia-ziel-erreicht/

https://www.audioholics.com/tower-speaker-reviews/bmc-audio-arcadia

These are very heavy speakers for their size in part due to the ceramic-acrylic cabinet, and feature separate 37.5 lb crossover boxes with custom components. Almost every surface is high gloss black so you will see some very fine hairline scratches but these can be buffed out. One of the crossover boxes shows a small crack from a past repair but that is on the bottom panel so you'll never see it. There are supposed to be 2 screws at the back of each cross-over box attaching the cover to the bottom but one screw is missing on one box. There is also a very small nick to the back corner edge of one cross over box but it cannot be seen from a few feet away.

The Arcadia is a balanced bi-polar configuration and is unique in a number of ways. Most conventional speakers have good depth of image in the center of the soundstage, but much less so at the sides. The Arcadia’s bi-polar design dramatically improves the soundstage’s depth impression at the sides, making the soundstage more complete and realistic. The innovative Megalith cabinet design is elegantly slim with a series of thin raised side panels that emphasize its graceful vertical lines, enabling it to also fit comfortably in normal living environments.

Balanced Megalith Cabinet

The Megalith cabinet is made of an exclusive material, a compound of several aluminum-hydroxide-based ceramics with an acrylic binder. Its stiffness and internal energy loss are far better than is possible with any cabinet made of wood. Resonance-free and rigid, the cabinet is also free from the effects of humidity and thermal elongation. In fact, the fusion of its parts is more like chemical welding, so that it reacts as a single, seamless piece. The cabinet is sealed, eliminating the bass-reflex resonance that can sound like blowing air into an empty bottle. The power of the drivers and the cabinet’s low energy loss more than compensate for any loss of oomph in the sound. The Arcadia is a balanced speaker, which means the same driver set on the front is also on the rear.

Drivers by B.M.C. Audio

Two 11-inch side-firing honeycomb-Kevlar woofers, each woofer is driven by 6 magnets in a ring configuration for an exceptionally long linear excursion range. Four 5" honeycomb-Kevlar midrange drivers in a bi-polar configuration. The honeycomb-Kevlar cones are light, stiff, free of resonance and coloration. Two Air-Motion ribbon tweeter with a massive motor and light diaphragm for superb acceleration and high sound pressure capability, in a bi-polar configuration as well.

Crossover

The crossover, uniquely, is external, and weighs 37.5 lbs. Being external frees it from internal sound pressures, and makes it easily upgradable with future solutions that improve the sound even further. Also unconventional, B.M.C. Audio custom crafted all the Arcadia’s key elements, including its large air inductors, inductance-free polypropylene capacitors, unique polystyrene “by-passers”, and metal-film resistor arrays, instead of the usual MOX or wire resistors, for superior precision and sound quality.

Design:
- 3 way passive bipolar speaker
- Megalith ceramic-composite cabinet
- External Crossover

Woofer:
- 2 x (11"), Kevlar/Honeycomb cone, 6 magnet drive, 50mm voice coil

Midrange:
- 4 x (6.1"), Kevlar/Honeycomb cone

Tweeter:
- 2 x Air Motion Transformer, extreme drive motor

Efficiency:
- 91dB/W/m

Dimensions top:
- 47.2 x 7.7 x 20.4" (WxHxD)

Dimensions bottom:
- 47.2 x 11.2 x 20.4" (WxHxD)

Weight:
- 198.0 lbs. per speaker
- 37.5 lbs. per crossover