Introduction
KEF, a British audio manufacturer, has a rich history of producing high-quality speakers. The brand is known for its innovative technologies and designs, particularly its Uni-Q driver array. The KEF Coda W represents a step into the realm of active, non-networked speakers, carrying the legacy of the Coda series from the 1990s/2000s, which aimed to provide access to Hi-Fi at an affordable price. This article delves into a comprehensive review of KEF vintage speakers, focusing on the Coda W and drawing comparisons with other models and user experiences to provide a well-rounded perspective.
KEF Coda W: Active Speakers for the Modern Listener
The KEF Coda W speakers are designed as active bookshelf speakers, incorporating the signature Uni-Q driver and a variety of rear-panel inputs within a simple yet modern cabinet design. These speakers aim to offer a standalone amplified experience without network connectivity, differentiating them from KEF's LS series (LSX, LS50 Wireless, and LS60 Wireless) and the XIO soundbar, which include network streaming capabilities.
Design and Aesthetics
The Coda W distinguishes itself from the more elaborate designs of the LS series with a simplified aesthetic. However, it is available in five unique matte colors: vintage Bordeaux, nickel gray, midnight blue, dark titanium, and moss green. The matte finishes are practical, resisting fingerprints. The front panel features a striated anthracite area that houses the concentric driver and the KEF logo, extending to the top of the speaker where function buttons and light indicators are integrated.
Technical Specifications
The Coda W operates on a master-slave principle, with the main speaker containing all the electronics and connecting to the slave speaker via a 3-meter USB-C cable. This setup is similar to the KEF LSX. The speakers feature rubber pads to protect surfaces and a rear-facing port, suggesting they should be placed slightly away from the wall.
The 12th generation Uni-Q driver includes a 25mm tweeter at the center of a 130mm woofer. The tweeter has a specific phase-matching piece but lacks the MAT rear damping technology found in higher-end models.
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Connectivity
KEF has equipped the Coda W with six different inputs:
- Bluetooth 5.4 with aptX Adaptive and aptX Lossless codecs
- Integrated phono preamplifier for vinyl turntables
- Analog input
- Optical digital input
- USB-C for computers or streamers
- HDMI ARC for TVs
User Experience and Controls
The KEF mobile app connects to the speakers via Bluetooth, offering controls for volume, source selection, and basic adjustments like bass and treble levels. Additional settings include left/right balance, auto-standby mode, power-on/off sounds, and CEC activation for HDMI. Some early versions may have incomplete CEC functionality.
Sound Quality
The KEF Coda W impresses with its ability to create a stable, three-dimensional soundstage. The sound signature is clear and elegant, without excessive emphasis on the upper midrange or treble. This allows for full appreciation of brass instrument timbres. The soundstage is positioned slightly behind the speakers, creating a sense of depth.
The speakers provide ample bass frequencies, creating a solid foundation for music across various genres. The bass is articulate, deep, and never monotonous, resulting in a coherent and enjoyable listening experience.
The wide soundstage also makes the Coda W suitable for movie watching via the HDMI ARC connection, immersing viewers in the action from various seating positions.
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However, the Coda W is not without its limitations. Some users may desire more body in the upper bass/lower midrange and greater extension in the extreme treble.
KEF Q350: A Detailed Look
The KEF Q350 speakers offer an impressive sound and elegant look at a competitive price. The Q350 is manufactured in MDF with a vinyl coating. It is a rear 2-way bass reflex speaker with a gold/nickel plated connector. The KEF Q350 speakers have an elegant and minimalist look. There is no unnecessary decoration on the lid, only the brand logo is visible on the top of the speaker.
Design and Features
The KEF Q350 features a 25mm vented aluminum dome tweeter housed on a 16.5cm aluminum mid/bass driver. The tweeter's characteristic waveguide helps distribute sound evenly. The Uni-Q driver includes a tube designed to reduce resonances and provide more accurate and clearer sounds. The driver is located at the front of the speaker, which, according to the manufacturer, reduces standing waves, while the reflex port is placed at the rear of the speaker. Additional changes have also been made to the shape of the central/bass cone to reduce distortion. The previous model had double wiring, which has also changed, and the Q350 speakers now only have a single cable.
Sound Performance
The KEF Q350 provides a balanced and clear sound and intense bass sounds. The sound of the speakers filled the space, and an airy and open sound could be heard. The highs also seemed impeccable, beautiful and firm. For some songs, we had the intention that KEF could be more dynamic, as the production of the speakers sometimes seemed too subtle. The sound was not distorted at higher volumes, and the detail remained. The Q350 provides sophisticated, clear and detailed sound, precise and intense bass, and flawless highs and mids.
Comparisons and User Experiences
KEF Coda W vs. Other Active Speakers
While there are other stereo-connected Wi-Fi speakers available at lower prices, the KEF Coda W stands out for its high-fidelity capabilities. It creates a realistic soundstage and explores all registers with conviction, making it a true Hi-Fi speaker that eliminates the need for an external amplifier. The absence of a built-in streamer also ensures a longer lifespan, as users can add an external streamer as needed.
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KEF Q300 vs. Cabasse Minorca
The KEF Q300 is often compared to the Cabasse Minorca MC40. Some users suggest that the Cabasse Minorca are serious competitors to the KEF Q300 because, in terms of spatialization, they play in the same category thanks to their BC10 coaxial speaker (SCS technology) but will go further in terms of definition, and their basses are deeper, less "messy" because it is three voices unlike the Kef who only have 2. This allows them to better define the soundstage of a register as rich and complicated as metal can be.
User Opinions on KEF Speakers
User experiences with KEF speakers vary. Some users have found older KEF models to sound like "casseroles" (pots and pans), lacking bass and sounding dry. However, others praise KEF speakers for their neutrality, balanced sound, and powerful bass, particularly highlighting the B300 woofer in older models like the KEF 105.
Some users appreciate the detailed and clear sound of KEF speakers, while others find them lacking in dynamics for certain music styles. The importance of proper speaker placement is also noted, particularly for models with rear-facing ports.
Vintage KEF Models
KEF has a long history of producing quality speakers, and many vintage models are still sought after by audiophiles. The KEF 105, for example, is praised for its neutral sound and powerful bass. Some users find that vintage KEF speakers offer excellent value for their price, outperforming newer models in certain aspects.
Matching KEF Speakers with Amplifiers
Choosing the right amplifier for KEF speakers is crucial for achieving optimal sound quality. Some users recommend pairing KEF speakers with amplifiers from brands like NAD, Rotel, Atoll, or Rega. However, opinions on the best amplifier pairings vary, with some users finding that NAD amplifiers may not provide enough bass for KEF speakers.
It's important to audition different amplifier and speaker combinations to find the best match for your listening preferences and system setup.
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