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Cambridge Audio Aero 2 vs. KEF R100: A Comparative Analysis of Bookshelf Speakers

As someone who’s clocked countless hours in the realm of HiFi and audio production, I’ve had the pleasure, and sometimes the displeasure, of sampling a wide array of audio equipment. Today, I’m diving into a head-to-head comparison of two notable bookshelf speakers: the Cambridge Audio Aero 2 and the KEF R100. Both of these speakers have garnered significant attention in the audio community, but how do they stack up against each other? Let’s delve deeper into the nuances that set them apart.

First Impressions and Build Quality

The initial unboxing often sets the tone for the overall experience, and here, both speakers offer distinct entry points. The Cambridge Audio Aero 2 makes an immediate impression with its relatively large size for a bookshelf speaker and a commanding black finish. However, the Aero 2 doesn’t fare well in build quality, as user reviews and personal experience point out issues such as the poorly pasted rubber around the woofers, which tends to come off too easily.

In contrast, the KEF R100 boasts a more compact design with a classic, almost vintage appeal. I opted for the walnut finish, a choice that adds a touch of sophistication to any setup. The R100 wins points for aesthetics with a sleek cube design, which is a step above the mundane rectangular shapes. The build quality is solid, exuding a sense of durability and attention to detail that inspires confidence.

Sound Quality and Performance

Now let’s get to the meat of the matter: sound quality. The Cambridge Audio Aero 2, after a break-in period of around 30-35 hours, reveals its true character. The sound it produces is detailed and clear, handling high volumes with commendable low distortion. The bass is solid but may seem somewhat shallow for those craving deeper undertones. There’s a certain warm, honeyed smoothness to the sound, which can be quite endearing despite some initial underwhelming impressions.

On the other hand, the KEF R100 delivers transparency and impressive imaging right out of the box. The bass is surprisingly powerful given the speaker’s size but never overshadows the mids or highs. However, there’s a flip side: the treble can be a bit harsh, especially at louder volumes. This tilt towards higher frequencies does make the audio feel a bit unbalanced, pushing the treble to ‘tizzy’ levels during certain playbacks. But for many, this adds a lively zest to the music.

Bass Response

Bass response is a critical factor for any speaker’s performance. The Cambridge Audio Aero 2 offers an acceptable bass performance but falls short in delivering the depth some users might expect. Conversely, the KEF R100 impresses with its potent bass that manages to add warmth and depth without muddying the sound. This makes the R100 a better option for those who prioritize a rich bass experience.

Treble Detail

The treble detail on both speakers presents a mixed bag of experiences. The Aero 2 is generally perceived as smoother, though not as distinctive, making it less harsh at high volumes. Meanwhile, the KEF R100’s enhanced treble detail produces a slightly ‘tizzy’ effect, which might either endear to or irk the listener’s ears, depending on personal preference.

Midrange Clarity

Both speakers excel in maintaining clarity in the midrange frequencies, though in different ways. The Aero 2 offers a smooth and clear midrange, making it a favorite for vocals and instruments. The R100, while also clear, suffers from an imbalance due to its pronounced high frequency. That said, neither speaker allows the bass to overwhelm the midrange, ensuring a well-rounded audio experience.

Design and Aesthetic Appeal

Design is where personal taste comes heavily into play. The Cambridge Audio Aero 2, with its bulkier build, might not be everyone’s cup of tea, particularly for those with limited space. Its aesthetic appeal, while strong, is marred by questionable build quality. The KEF R100, in contrast, not only looks good with its elegant design and walnut finish but also fits neatly into smaller spaces. For design aficionados, the R100 clearly takes the lead.

Value for Money

When it comes to pricing, the Aero 2’s mixed reviews highlight a bit of contention regarding its value for money. Some users feel that its performance aligns well with its price, while others expect more considering the competition. The KEF R100, priced similarly, is perceived as offering better value. It provides robust performance, better design, and enough features to justify its price, even when stepping up to higher-tier models looks tempting but financially daunting.

Conclusion

Both the Cambridge Audio Aero 2 and the KEF R100 bring unique strengths and occasional weaknesses to the table. The Aero 2 is robust in bass and balanced in clarity but suffers slightly in build quality and initial sound performance. The KEF R100, on the other hand, excels in design, provides transparent sound, and has an impressive bass but can be slightly harsh in the treble region. Deciding between the two will come down to your priorities: whether you value aesthetic appeal, balanced sound quality, solid bass, or overall value for money. For my detailed insight into each specific aspect, read on.

Comparing Aspects

User-Based Scores & Our Experts Analysis

KEF R100

Cambridge Audio Aero 2

8.5
Bass Response
7.1
Examining the bass performance of the Cambridge Audio Aero 2 and KEF R100 reveals how each speaker caters to different auditory tastes. The Aero 2 delivers a competent bass experience, marked by clean and non-harsh characteristics. However, it can sometimes feel shallow, lacking the depth that bass enthusiasts might crave. The KEF R100, in comparison, surprises with its potent and balanced bass for its size. The bass does not overpower other frequencies, providing a well-rounded sound signature. This deeper punch, without muddying the mids and highs, is a significant advantage of the R100 over the Aero 2. While the Aero 2 maintains a respectable bass quality, the KEF R100 stands out with its superior depth and solidity, making it a more compelling choice for those prioritizing bass performance. Aspect Verdict: The KEF R100 overshadows the Aero 2 in terms of bass response, offering deeper and more impactful bass that maintains balance and clarity.
7.0
Treble Detail
6.5
When it comes to treble detail, the comparison between the Cambridge Audio Aero 2 and the KEF R100 is particularly striking. The Aero 2 provides treble that is generally soft and non-intrusive, avoiding the harshness that can sometimes plague speakers. This makes it comfortable for long listening sessions but slightly lacking in brightness. On the contrary, the KEF R100 emphasizes highs, delivering a clearer and more pronounced treble. However, this increased treble can tip the balance towards a 'tizzy' and somewhat harsh sound, especially at high volumes. For those who appreciate heightened clarity and aren't bothered by a sharper treble, the R100 excels. But if you seek a more laid-back, evenly balanced treble, the Aero 2 might be more to your liking. Aspect Verdict: The KEF R100 excels in delivering clearer, pronounced treble but can become harsh at high volumes. The Aero 2 offers a smoother but less distinct treble, making it more comfortable for extended listening.
7.3
Midrange Clarity
7.7
Midrange clarity is a crucial element for any speaker and both the Cambridge Audio Aero 2 and KEF R100 show strengths here. The Aero 2 enjoys a smooth and clear midrange, making it ideal for vocals and instrumental tracks. There's a refreshing warmth that doesn't get overshadowed by the bass. The KEF R100 also delivers in this aspect; however, the pronounced high frequency sometimes interferes with the balance. Yet, both speakers manage to keep the midrange free from bass interference, maintaining good clarity. In a head-to-head comparison, the Aero 2 has a slight edge in keeping the midrange smoother and clearer, although the KEF R100 holds its own fairly well even with its slight tilt towards the highs. Aspect Verdict: Both speakers perform well in midrange clarity. The Aero 2 offers a smoother midrange, while the R100, despite its high-frequency tilt, maintains respectable clarity.
8.6
Design
6.8
Design is where personal taste comes into play heavily, and both the Cambridge Audio Aero 2 and KEF R100 offer distinct appeals. The Aero 2, with its larger size and commanding black finish, delivers a robust presence but suffers from lackluster build quality. Issues like poorly pasted rubber around the woofers detract from its appeal. On the other hand, the KEF R100 offers a compact cube design with a classic and sophisticated walnut finish. The build quality is solid, instilling confidence in its durability. The R100's elegant design and compact form factor make it a favorite for smaller spaces and those who appreciate a stylish aesthetic. Overall, the KEF R100 takes the lead with its superior design and build quality. Aspect Verdict: The KEF R100 clearly stands out with its elegant, compact design and durable build quality, whereas the Aero 2, despite its commanding presence, falls short in build quality.
8.0
Sound Quality
7.2
Sound quality is the ultimate test for any speaker, and both the Cambridge Audio Aero 2 and KEF R100 deliver in different ways. The Aero 2, post break-in, reveals detailed and clear sound with commendable bass and low distortion at high volumes. However, it may lack the wow factor for those seeking a deeper and more detailed audio experience. The KEF R100 impresses with its transparency and imaging, offering a well-rounded sound with powerful bass that doesn't overshadow other frequencies. The treble tilt, however, can make it sound harsh during loud playbacks. Overall, while both speakers deliver good sound quality, the KEF R100 edges ahead with its superior transparency and balanced bass, making it a more engaging listening experience. Aspect Verdict: The KEF R100, with its superior transparency and balanced bass, offers a more engaging sound quality, while the Aero 2 provides clear and detailed sound but may lack depth and refinement.
8.2
Value for Money
7.3
Value for money is a significant factor in any purchase decision. The Cambridge Audio Aero 2, with its mixed reviews, presents a contentious value proposition. Some users feel that its performance justifies its price, while others expected more. The KEF R100, priced similarly, is often praised for offering better overall value. It provides a robust performance, superior design, and enough features to justify its cost, making it a more compelling option for many buyers. While both speakers are reasonably priced for their performance, the KEF R100 stands out as the better value proposition with its balanced sound quality, elegant design, and solid build. Aspect Verdict: The KEF R100 offers better value for money with its balanced performance, elegant design, and solid build, making it a more compelling choice compared to the Aero 2.

Final Verdict

In comparing the Cambridge Audio Aero 2 and KEF R100 across various aspects, the KEF R100 often edges out its competition due to its superior build quality, elegant design, and impressive sound performance, particularly in the bass department. The Aero 2 offers good midrange clarity and a smooth treble but is let down by build quality and a somewhat shallow bass response. When considering ease of setup, the KEF R100 again takes the lead with its compact and user-friendly design. Overall, while both speakers have their strengths, the KEF R100 stands out as the better choice for most users, offering excellent value for money and a well-rounded audio experience.

Comparison and Difference Between

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Brand and Model Specifications

Information about the brand, model release date.

Manufacturer Cambridge Audio KEF
Model Aero 2 R100
Photo
Release Date 2013 2015
HifiSpecs Rating
Amazon Rating
Price

Technical Specs

Technical characteristics of the speakers.

Amplification Type Passive Passive
Crossover Type 2-Way 2-Way
Enclosure type Bass Reflex Bass Reflex
Frequency Range (+/-3 dB)[Hz] 40 - 22000 56 - 28000
Frequency Range (-6dB)[Hz] - -
Maximum SPL [dB] - 107
Sensitivity (2,83 V/1 m)[dB] 90 86
Nominal Impedance (Ohms) 8 8
THD (Total Harmonic Distortion) - -
Recommended Amplifier Power [W] 25-120 25-100
Crossover Frequency [Hz] - 2500
Bass Reflex Tuning Frequency [Hz] - -
Driver Units

Tweeter: 1 x 46mm (2”) BMR
Mid/Bass Drivers: 1 x 165mm (6.5″) high power subwoofer

Tweeter: 1” dome tweeter
Mid/Bass Drivers: 130 mm (5″) Uni-Q with 25 mm (1″) HF

Connectivity Wired Wired
Inputs Single Wire Single Wire
Outputs - -
Magnetic Shielding No No

Placements and Distances

Where and how to put them.

Form Factor Shelf, Stand Shelf, Stand
Distance from Wall [cm] 15 15

Dimensions and Weight

Physical characteristics of the speakers (without stands).

Length ~8.0 in
~203.2 mm
~20.32 cm
~ 7.1 in
~180.34 mm
~18.03 cm
Width ~12.2 in
~309.88 mm
~30.99 cm
~11 in
~279.4 mm
~27.94 cm
Height ~14.6 in
~370.84 mm
~37.08 cm
~11.4 in
~289.56 mm
~28.96 cm
Weight (Single Speaker) ~15 lb
~6803.89 g
~6.8 kg
~14.55 lb
~6599.77 g
~6.6 kg
Shipping Weight ~ lb
~0 g
~0 kg
~36 lb
~16329.33 g
~16.33 kg

Colors and Accessories

List of available colors and optional accessories.

Colors
  • Black
  • Walnut
  • Gloss White
  • High Gloss Piano Black
  • Rosewood
  • Walnut
Accessories

Detachable Grilles No Yes

Price and Warranty

Satisfaction is (not) guaranteed.

Warranty 5 Years 5 Years
Amazon Price

Review Comparison

Hifispecs' professional customer-reviews can help make up your mind.

Available Reviews

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