This is the slim one on KEF’s LSX II LT

This is the slim one on KEF’s LSX II LT

KEF has put the LSX II active flow-through loudspeaker on a diet to produce a new model that dials back the wallet damage and trims a little fat from the feature set. In other words, the all-new LSX II LT is a more affordable version of the LSX II.

The LT version is again designed around KEF’s W2 broadcast module without Ron’s readiness for his more precious brother. This is far from a deal breaker. The Roon will easily stream to the LSX II LT’s Apple AirPlay 2 and Chromecast inputs. Tidal Connect is also showing up at the party with its KEF Connect app covering UPnP, Qobuz, Deezer and Amazon Music. Your choice of Ethernet or WiFi. Bluetooth is waiting in the wings with the convenience of mom and dad.

KEF intends its new active model to serve in three main areas: music streaming, computer audio use and television. That’s why the wired connections on the back of the primary speaker are all digital: USB-C for desktops, HDMI ARC for TVs, and TOSLINK for game consoles and CD players.

At the LSX II LT’s business end is an 11th generation Uni-Q driver array with one Class D amplifier and one DAC applied to each driver. Those with sharp memories will remember that this is the same arrangement found in the LSX II: 70 watts of speaker power applied to a 4.5-inch mid/bass driver coaxially surrounding the tweeter that sees 30 watts of juice. Crossover is implemented by the same DSP engine that optimizes the overall performance of the amplifier and, optionally, depending on the room situation. KEF calls this the “Musical Integrity Engine.”

From press materials: “KEF’s in-house designed digital signal processing (DSP) algorithms take an already excellent audio foundation and elevate the relationship between the various components far beyond what typical ‘off-the-shelf’ options can aspire to.”

My contact at KEF told me that the sound leaking from a pair of LSX II LTs would sound at 99% of the audible quality of its predecessor.

However, this is not a speaker for idealists who are concerned about the internal link between speakers not working at 24-bit/192kHz (or wirelessly). The digital signal travels from the primary amplifier to the secondary amplifier at 24-bit/96kHz via KEF’s 3m “C-Link” cable. The same cable provides all the power needed by the secondary speaker; No power cable required. An 8-meter “C-Link” cable will be available separately for those who wish to extend the channel separation range.

Far more important than any hi-res bass is the bass. KEF has moved the subwoofer output of the LSX II to the LSX II LT and when I get my hands on a pair of these speakers in a month or so, I’ll be adding a subwoofer to the scene almost immediately. This 2.1 system will force the use of floor stands with the LSX II LT being fully compatible with the LSX II’s S1 stand (and P1 desk pad).

The LSX II LT will go out the door for £899 a pair. In the USA, the LT will be priced at $999 per pair, and in the EU €999 per pair. An optional 8m C-Link cable is available to you for another £50/$59/€59.

Michael Young once again opts for industrial design with the LSX II LT that comes in three new finishes that dispense with the original cloth exterior: your choice of Graphite Grey, Stone White or Dark Green.

To clarify: the LSX II (£1,199) is no It is discontinued, and, flipping our comparison, adds an optional wireless link, 3.5mm analogue input, MQA display, and Roon Ready to the LSX II LT’s feature set.

More information: How

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