https://www.hifinews.com/content/dali-kore-loudspeaker

https://www.hifinews.com/content/dali-kore-loudspeaker

The enclosure, meanwhile, is built by a Danish furniture manufacturer that specialises in ‘curved shapes’, using a 28mm-thick birch laminate composite. It combines structural elements made from die-cast aluminium, thermoset resin and cast composite, and is divided up internally so each section of the speaker is operating in its own space. The dividers also brace the cabinet and are formed from laminated birch shelves installed to create non-parallel surfaces. The role of this cabinet, which is finished in a striking dark veneer with textured accents? According to CEO Lars Worre, it’s to ‘hold the drivers, be airtight, and shut up’.

It’s also built to be relatively easy to position – DALI suggesting 3-5m between the speakers, 1-2m from the wall behind, and away from corners, while also advising against any toe-in if the set-up conforms to the classic ‘equilateral triangle’ layout. There’s a KORE ‘White Paper’ covering, among other things, the brand’s ‘wide dispersion philosophy’, and you can find it on the company website at http://www.dali-speakers.com/en/products/dali-kore/dali-kore. (Registration may be required.)

Executive summary? The company aims to optimise the dispersion characteristics of its designs so that direct and reflected sounds have a similar tonal character. What’s more, the KORE is designed as a stable, relatively easy load for amplifiers, with a nominal impedance rated at 4ohm, a minimum of 3.2ohms at 72Hz, and a sensitivity given as 88dB/W/m.

https://www.stereophile.com/content/mofi-electronics-sourcepoint-10-loudspeaker

We discussed the MoFi’s soft-dome tweeter, which, as well as being larger than usual for a two-way design, has a relatively large surround. Andrew explained that the surround acts as a ring radiator, emitting sound. He said that with a conventional tweeter, the surround’s output at very high frequencies may well be in the opposite polarity to that of the dome, resulting in a loss of output. “I knew I wanted a slightly larger diameter, 1.25″ rather than 1″, with a wide roll surround, because that gives you extra capability at the lower frequencies. Counterintuitively, if you put a wider roll surround on the tweeter, you actually improve HF response. You think it would interfere and cut off earlier, but it doesn’t; it actually extends it. … [T]he phases will be additive up to a higher frequency.” Andrew said the SourcePoint 10’s tweeter goes out to beyond 30kHz.