
Q-Acoustics Concept 300 Compact-Speaker

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Verdict: "These Q Acoustics are an innovative pair of standmounters that technologically and sonically are set apart from a lot of similarly-priced competition. The fact they aren’t the most entertaining speakers available at this price point might detract from that achievement slightly, but these are still among the most interesting speakers to have passed through our test rooms so far this year."

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Conclusion: "The Concept 300 is a great addition to the standmount market. Highly capable across the board, it’s clear a lot of thought has been put into the design. The result is a charming sound that puts the accent on civility and smoothness – but never at the expense of musical enjoyment – making it excellent value for money."
Productinformation:
Since its founding in 2006, Q Acoustics has built an unrivalled reputation for designing, engineering and manufacturing innovative, high-performance and class-leading loudspeakers at every price-point. This ongoing and concerted demonstration of excellence has all led to Concept 300. The brief for Concept 300 is simple, yet staggeringly ambitious. Build on the runaway success of the floorstanding Concept 500 and deliver a standmounting alternative that’s at once more affordable, of utterly uncompromised performance and of stylish, understated elegance. There follows a brief explanation of just how Q Acoustics has made this happen and, by extension, why Concept 300 represents the state of the loudspeaker art in the 21st century.
Cabinet and Stand
Ideally, the only vibrations a loudspeaker produces are the ones required to generate its sound. Of course, it’s not possible to entirely rid a loudspeaker cabinet of unwanted vibrations that can interfere with its performance - but, as Q Acoustics has demonstrated with Concept 300, it is possible to keep cabinet vibrations to an absolute minimum in order to deliver entirely uncorrupted sound. Q Acoustics uses MDF rather than one of the more glamorous and/or expensive alternatives to construct the Concept 300 cabinet. There are a couple of reasons for this: a) alternative materials offer no benefits in terms of damping, or even ease and simplicity of construction, over the very high performance MDF delivers, and b) more expensive materials simply drive up the eventual price of the speaker for no audio gain whatsoever.
Point 2 Point Bracing™
The intelligence of the design of the Concept 300 cabinet is evident in its use of P2P (point to point) bracing. Q Acoustics is able to measure the performance of the cabinet structure at a microscopic level, and identifies the precise positions that require support.
So the P2P targeted cabinet-bracing method means the cabinet has exactly the support it needs, and no more. In this instance, a long and involved analysis of a problem results in a simple and brilliantly effective solution.
Dual Gelcore™
Having dealt with lower-frequency vibrations using P2P bracing, Q Acoustics then negates higher-frequency cabinet vibrations using its bespoke Dual Gelcore technology.The Concept 300 cabinet is comprised of three individual layers, each separated by a non-setting gel - the gel acts rather like a high-tech and extremely effective gasket. Any stray high-frequency vibrations are converted into heat which dissipates within the gel.
Tensegrity Stand & Isolation Base System
With a standmounting speaker design like this, of course, the speaker’s relationship with its stand is of fundamental importance. And it’s the design of the new Tensegrity stand, and the new isolation base suspension system that joins Concept 300 to it, that allows Q Acoustics to redefine the level of performance that’s possible from a smaller loudspeaker. Tensegrity is a tripod - by definition, an extremely stable structure. It’s built It’s built from precision machined stainless steel rods (which are the load-bearing element) and thin stainless steel cables (which maintain the position of the load-bearing rods). The result is an exceptionally rigid and self-supporting structure with a remarkably low surface area and - let’s not pretend otherwise - beautifully elegant appearance. It’s not so much a speaker stand, it’s more an entirely new loudspeaker support concept. But, of course, it’s of little consequence how efficient your speaker cabinet is, or how ingenious the design of the stand it works from, if the union between the two is unsympathetic or inefficient. Q Acoustics joins Concept 300 speaker to Tensegrity stand with the new isolation base suspension system, which is about as sympathetic and efficient as it gets. The entire mass of Concept 300 is suspended on the four springs of the newly developed integrated base plate. This isolation base system works in multiple ways: it prevents energy from the speaker leaking into the Tensegrity stand and affecting the sound, it prevents vibrations for the floor making their way from the stands into the speaker, and in every circumstance it provides a rigid coupling between speaker and stand. Thanks to the combination of Tensegrity stand and isolation base suspension, the performance of Concept 300 is entirely unhindered by internal or external influences.
Driver Units and Crossover
Q Acoustics has taken its proven (and acclaimed) driver technology from the Concept 500 floorstanding speaker and enhanced its performance to perfectly match the requirements of the Concept 300’s smaller cabinet.
The mid/bass driver is a 165mm impregnated/coated paper cone with very low resonance thanks to its high-performance rubber surround. It sits in front of a large (35mm) glass fibre voice coil and equally substantial ferrite magnet. The result is midrange and bass response that’s as punchy and dynamic as it is poised and eloquent. Above it, the 28mm high-frequency driver, made of super-fine strands of coated microfibre, is decoupled from the speaker cabinet using a rubber gasket. This protects the tweeter from sending or receiving unwanted vibrations and allows it to be mounted close to the mid-bass driver. This improves integration with the larger driver - and the very subtle horn-shaped profile to the tweeter’s front plate allows perfect impedance-matching with its environment without colouring performance.
Specification
Concept 300 Speaker
- Enclosure type: 2 way reflex
- Mid/bass driver: 165mm
- High frequency unit: 28mm
- Frequency response: 55Hz - 30kHz
- Nominal impedance: 6ohms
- Minimum impedance: 4.7ohms
- Sensitivity: 84dB
- Stereo Amplifier Power: 25-200w
- Crossover Frequency: 2.5kHz
- Effective Volume: 11.4L
- Dimensions W/H/D: 220 x 355 x 400mm
- Weight: 14.5kg (per speaker)
- Carton Dimensions W/H/D: 320 x 500 x 520mm
- Packaged Weight: 16.6kg (per speaker)
- Dimensions W/H/D: 492 x 690 x 430mm
- Weight: 3.9kg (per stand)
- Carton Dimensions W/H/D: 740 x 780 x 460mm
- Packaged Weight: 12.3kg (pair)
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You receive a 2 year warranty from the date of purchase for all of our high quality hifi-products.
If you observe any problem while using the product, you have the possibility to contact our friendly service team.
You can also easily manage your guarantee concern – without being obliged to – under the section My Account.
Warranty extension for Q-Acoustics products
Q-Acoustics offers an extended warranty of 5 years for selected speakers. These are the shelf- and floorstanding speakers of the 3000, 7000, Install and Concept ranges. Their respective center speakers are also covered under the extended warranty.
Subwoofers and these products: M4 Media 7000 and BT3 are not covered under the extended warranty and have a regular warranty period of 2 years instead.
If you observe any problem while using the product, you have the possibility to contact our friendly service team.
You can also easily manage your guarantee concern – without being obliged to – under the section My Account.
Warranty extension for Q-Acoustics products
Q-Acoustics offers an extended warranty of 5 years for selected speakers. These are the shelf- and floorstanding speakers of the 3000, 7000, Install and Concept ranges. Their respective center speakers are also covered under the extended warranty.
Subwoofers and these products: M4 Media 7000 and BT3 are not covered under the extended warranty and have a regular warranty period of 2 years instead.
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