With the Coda W, KEF honors its 1970s model, which has been refined over more than thirty years, while making its connected technology even more accessible.
A pioneer in the connected hi-fi speaker market since the launch of the LS50 Wireless (test VU#10 FR), which later became the LS50 Wireless II (2 499 €) with the addition of the Meta chassis, KEF has since expanded its range. First upwards with the LS60 Wireless floorstanding speaker (5 499 €), then downwards with the more compact LSX, which also became the LSX II (1 249 €). More recently, this model was simplified to bring the LSX II LT version below the one thousand mark (999 €).
Since the end of the last year, a new pair of mid-sized speakers, the LS50 Wireless II and LSX II, are entering the fray, but at an even more affordable price of 899 €. Available in five colors—red, gray, green, blue, or black—the Coda W retains the principles of the other connected models, but without Wi-Fi and based solely on the latest generation Bluetooth 5.4 aptX Adaptive and Lossless module.
However, the wired connections available on the primary speaker remain extensive. Not only are there digital connections with HDMI eArc for connecting to a home theater system, an optical jack, and a USB-C port, but there are also analog connections with an RCA input and an RCA phono input for connecting a turntable (with unspecified input impedance, which should only affect MM cartridges).
As you might expect, the speaker technology remains the patented Uni-Q coaxial design. In this case, it is the 12th generation with a 25 mm (1’’) aluminum dome for the central tweeter and a 130 mm (5.25″) magnesium-aluminum alloy cone for the mid-bass. This speaker offers a response range of 41 Hz to 20 kHz and can be supplemented by a subwoofer thanks to its RCA Sub output.
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A DSP based on the proprietary Music Integrity Engine patent allows for optimal frequency tuning, combined with dual 100 W amplification per speaker, divided between 30 W for the tweeter and 70 W for the midrange and bass frequencies. As with the other models, touch controls are available on the top of the master speaker, although the simplest option is to use a smartphone or tablet. A remote control is also included with the package.
Although described as “wireless” as is always the case with connected models, these speakers still need to be plugged into the mains via the primary speaker, then connected to the secondary speaker using a C-Link cable. A 3 m version is included with the pack, while the 8 m version is sold as an optional extra for 59 €. And if you don’t want to place the Coda W on a shelf or piece of furniture, dedicated SQ1 stands are also available, priced at 299 € per pair.
We’ll tell you more as soon as we’ve had a chance to listen to the products in one of our listening rooms!
It has already been 20 years since the Italian designer of audiophile-quality electronics introduced the Audio Analogue Puccini Anniversary. The first piece of equipment produced by Audio Analogue, the Puccini also made its mark on the world of high fidelity by quickly joining the very exclusive club of equipment considered to be the benchmark in power amplification. Still in the catalog and regularly revised, the Puccini Anniversary is more than ever an amplifier to be reckoned with.
The Puccini has a little secret that enables it to deliver such high performance. It lies in the very structure of its power stages and their operating principle. The Audio Analogue Puccini is part of the extremely small family of power amplifiers without negative feedback. This idea emerged in the Airtech laboratories.
While some may consider this a minor design detail, the impact of this choice on sound reproduction is far from insignificant. This absence of negative feedback, also known as “zero feedback” architecture, significantly reduces the amplifier’s sensitivity to the type of load, or its behavior, that it is designed to drive.
This eliminates the risk of oscillation, as well as the appearance of resonance peaks in the highest frequencies or saturation of the input stages. All of these factors guarantee sound reproduction that is free from coloration or distortion.
However, this choice of a structure without counter-reaction is not enough to give the Puccini its exceptional performance. Audio Analogue has also worked hard to lower its output impedance so that it can handle even the most delicate speakers and those with the highest current requirements. To achieve this, its output stages feature a triple push-pull on each channel. The same applies to distortion reduction. On the Puccini, it reaches the limits of what is measurable. Finally, the power supply uses devices that guarantee the Puccini’s excellent immunity to external electrical interference.
It should be noted that Audio Analogue has been particularly generous in the design of this power supply. A 700 VA toroidal transformer forms its heart. This allows the push-pull power stages to express themselves fully, even when the most extreme dynamics occur.
However, in order to convey energy between the power supply and the output stages while taking full advantage of the most intense current management capabilities, it is still necessary to avoid losses in the amplifier’s internal wiring.
To meet this requirement, the Puccini features internal wiring designed around 7N purity OCC solid copper conductors.
Similarly, all printed circuit boards feature gold-plated copper tracks that are twice as thick as those found in standard circuits, in order to improve electrical conductivity. Finally, as is traditional in high-quality equipment, the Puccini adopts a dual-mono internal architecture. Each channel has its own circuitry, which significantly limits their interaction.
The Puccini has high-quality connectors for connecting to other components in the system. On the input side, it is directly compatible with the highest quality sources as it is equipped with an XLR input. For more conventional components, there are four dedicated line-level analog inputs on RCA connectors.
These connectors are directly connected to the electronic boards and the desired source is selected via relays. It is worth noting that the Puccini’s volume control uses very high-quality Analog Devices potentiometers. For speaker connections, Audio Analogue has opted for pairs of high-quality, generously sized screw terminals that can accommodate both thick cables and banana plugs or spade connectors.
Finally, the Puccini comes in an elegant, minimalist case. Its front panel is made from a 14 mm thick solid aluminum plate. Although the only visible control appears to be the volume control, the Puccini is designed to work in perfect harmony with the components it is connected to.
For example, its volume control has four selectable scales. This makes it possible to adjust its progressivity according to the efficiency of the speakers or your listening habits. Similarly, the brightness of the LEDs indicating the input in use is adjustable. They can even be completely hidden.
The set-up of the Audio Analogue Puccini Anniversary
The Puccini Anniversary’s overhead line should not obscure its weight of almost 16 kg. Therefore, a rigid support is essential. Its particularly comfortable available power will allow it to easily power a wide range of speakers in comfortable or even spacious environments.
The sound of the Audio Analogue Puccini Anniversary
There is no doubt that the designers of this Italian brand have a particular sound in mind, and it is in the realm of elegance and refinement that we find it. With many complex musical messages, the Puccini Anniversary unfolds its modulation with an innate sense of fluidity.
It seems to play with all the sonic pitfalls thanks to a clear and defined vision of the different melodic lines that make up the varied excerpts we were able to submit to it. This beautiful acuity ensures its readability at all times. Precise without being inquisitive, exhaustive without being robust, it excels in the difficult exercise of balancing lightness and density.
However, it delivers on low notes with a firmness reminiscent of its predecessor, the Maestro, albeit slightly less so. The three-dimensional space recreated by the Puccini Anniversary allows you to appreciate a deep horizon where the sections are well defined. Some listeners may prefer a more full-bodied sound, but the Italian amplifier has chosen a more refined approach to support its message.
This allows it to always be relevant, never excessive, and always in control. And to corroborate this philosophy, it strives to offer a smiling face to the musical phrase it reproduces, bathing it in light.
Our conclusion
Despite its age and long history in the catalog, the Puccini Anniversary is an amplifier that is still very much relevant today. There is no reason why the great qualities it displayed several years ago should have faded with time, proving that a well-designed and well-made product can stand the test of time.
This is fortunate and reassuring for consumers like us. And while we may regret that its price has risen, the same can be said of many other devices, especially at a time when price increases have unfortunately become commonplace. For all these reasons, we consider this amplifier to be still relevant today and believe that consumers are right to include it in their selection of integrated amplifiers in this price range.
To celebrate its 30th anniversary, the Advance Paris brand is launching a new series called APEX.
Comprising four devices, this series improves on three integrated amplifiers from the Classic range and adds a CD player derived from the X-CD9. All hybrids, APEX amplifiers use a pair of ECC81 double triode preamplifiers, which can be replaced with 12AT7 models if necessary (or if you prefer the sound). The CD player incorporates a pair of Raytheon 5744 NOS tubes.
A8 APEX The smallest in the range, the A8 APEX, like the other two amplifiers, has blue backlit VU meters from the Classic series, which have been changed to black, giving them a classier look. The transistor amplification develops a class AB power of 75 watts under 8 Ω and 110 watts under 4 Ω. On the analog side, two pairs of speaker terminals are joined by a plethora of RCA inputs, including a slightly separated MM (Moving Magnet) phono input on the right side of the rear panel. On the digital side, an ESS9018 DAC can be integrated via optical and coaxial inputs, with an HDMI e-Arc port also available alongside. The A8 APEX is priced at 1 990 € including tax.
A10 APEX More powerful, the A10 APEX uses the same preamp tubes and Sabre DAC chip, but delivers 130 watts into 8 Ω and 198 watts into 4 Ω. A dual subwoofer output is located next to the numerous RCA analog inputs, along with a pair of XLR terminals and, on this model, two sets of HP terminals. The DAC can be integrated via a USB-Audio port, in addition to the optical and coaxial inputs, which are more advanced than on the A8 APEX. The European price is set at 2 490 € including tax.
A12 APEX But if the A10 is not enough for you, the A12 APEX delivers even more power, up to 190 watts into 8 Ω and 292 watts into 4 Ω. With two toroidal transformers for power supply, its analog architecture is perfectly dual-mono, and the digital section is now managed by an ESS9039 DAC chip, Sabre’s most modern. On this model, the phono input supports not only MM cartridges but also MC (moving coil) cartridges. Two pairs of XLR inputs are combined with a pair of balanced pre-outs. The more elite price tag puts the product at 3 490 €, housed in a more massive chassis weighing nearly 20 kilos. All models feature a 6.35 mm headphone jack on the front panel and an A-BTC Bluetooth module.
ACD APEX Further proof that the CD still has a bright future ahead of it in the audiophile world, in addition to integrated amplifiers, this APEX series offers one for a single source. Surprisingly, the conversion chip used is no longer a Sabre but a Wolfson, in this case the WM8761 reference chip. It cannot be integrated directly and is therefore only used to convert digital disc playback; on the other hand, the ACD APEX can be used as a pure transport thanks to two digital outputs, a Toslink optical and an RCA coaxial. Combined with two Raytheon 5744 NOS frequency tubes, this player stands out from the competition and deserves to be tested, especially since its price remains affordable at 890 € including tax.
Where we might have expected it to focus on connected speakers to break out of the streamer segment in which it has established itself in less than three years, China’s EverSolo has surprised everyone by first launching a model of passive 2-way speakers.
Designed to match the recent Play all-in-one, the SE100 stands out with its cubic shape and square front panel, made to fit perfectly into the Ikea Kallax shelf. Black and sleek in design, these speakers feature a 1’’ (25 mm) silk dome tweeter positioned on the same horizontal line as the front vent.
This innovative geometric design complements the mid-bass driver located below. Measuring 5.25 inches (13.3 mm), it has a paper pulp cone, excited by a Rapid Transient Coil (RTC) technology. If desired, a grille can cover the speakers by fitting directly into the frame, which is made of MDF to dampen vibrations.
Around a large Bevenbi filter capacitor, the small filter located inside near the vent also incorporates pure copper coils and is designed to process the signal from the rear terminals, which are available with bare cables or banana and spade connectors.
As is customary for the brand, these SE100s are competitively priced compared to the competition, at 499 € including tax per pair in Europe.
If you are a regular reader, you will know how much we love audiophile switches, so here is your chance to discover the one from Aurender!
Specializing in network servers, i.e., players with internal memory for downloading music files without the need for streaming platforms, the South Korean manufacturer has been showing a new dynamic since last year. First expressed in the new A1000 network player, which is more open than its predecessors and even includes Bluetooth, this new direction is now developing with an extremely important product to integrate into a dematerialized listening system between the player and the box: the Internet switch.
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In order to purify data coming from the network, the new NH10 offers six RJ45 (RJ48) ports and two SFP fiber ports, all usable at transfer speeds of 100 or 1000 Mbps. Connected to the box via the first port and then to the network player via the other ports, either RJ45 or fiber, this switch resynchronizes the signal using an OXCO clock with a jitter rate of less than 0.005 ppm. A 10 MHz BNC port can further improve this, with the data also being resynchronized by an FPGA.
Weighing 8 kg, the NH10 provides galvanic isolation to all ports and extremely stable power thanks to audiophile-grade power processing. Its price in Europe is set at 4 290 €.
