Audiophilepure

They have a high engagement factor, drawing one into the music and allowing to fully enjoy and comprehend what is being conveyed. Their clever design makes them easy to place and position, and their patented midrange driver enables sound to expand far beyond the speakers, creating a remarkable horizontal and vertical soundstage.

The same goes for the depth of the sonic sphere, where the Challenger II allows music to emerge from a deep, black background, cutting through with refreshing airiness while staying true to the realistic portrayal of musicians and instruments.

Voices and instruments are presented with lifelike size, drum attacks are sharp and fast, and the leading edges of notes retain their crispness. This enables the Challenger II to instantly lock into the beat, reproducing music with stand-out clarity, transparency, and vividness.

https://www.audiophilia.com/reviews/2024/9/30/alta-audio-aphrodite-speakers

In short, Aphrodite is gorgeous in Piano Black and bold-looking. As with all Alta Audio speakers, the cabinet is not just a rectangular box; its sides taper off from the bottom up to the top. The drivers are beautifully displayed in the front, from top to bottom, with the symmetrical D’Appolito near the top, followed by the larger 9” mid-bass and then the thunderous-looking 10.4” subwoofer. The Alta Audio logo is a dash further down, followed by a bass port. A tasteful-looking black removable cloth cover for the front can easily be attached and removed magnetically.

At first sight, the entire cabinet appears to be a solid enclosure. Still, a closer look reveals that the upper half of the unit’s back and sides have a sturdy black cloth hood protecting the open-back dipole, which, when exposed, looks like a thin black monolith with the back of the drivers showing. It connects magnetically and firmly and should be kept on even when playing music, but it can be taken off to look at (admire?) the dipole. Only the subwoofer is enclosed/sealed in the lower part, the Alta XTL bass enclosure, the back of which, near the bottom, is the pair of speaker posts (for the use of either jumpers or Bi-wiring or Bi-amping). “Aphrodite” is written in orange script font between the posts for a final elegant touch.

Shown below is an exploded view of the FR5. The inside of the enclosure is open to both drivers, but there is a 4mm deep cup with damping material that seals the tweeter voice coil along with a foam gasket for the tweeter frame. There are several braces as well as long bolts that attach the front baffle to the rear panel. This pulls the enclosure very tightly together. Polyester fiber is used inside the enclosure for damping.

The box is tuned to 35 Hz. Passive radiator enclosures have a steeper roll-off below their tuning point than a typical ported enclosure because of the additional compliance term of the passive radiator.  As such, there isn’t much output capability below the tuning frequency.

https://www.hifinews.com/content/canton-reference-7

The Reference 7 may ‘only’ be the smallest floorstander in Canton’s reinvigorated top-of-the-line range but it’s still a very solid performer that easily fills larger rooms. Introducing a radical but pleasing industrial design and embodying new ‘acoustic smarts’, the Reference 7 is a capable performer that, while extracting the finer points of recordings, really excels at communicating power, dynamics and thrills.