For People Who Love Music On The Move - Four Masters

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apart from the incredible sound is how well integrated with the car the equipment is” In order to make a good basis for this install, the car was completely stripped and the floor, doors and all panels treated with Skinz sound deadening. With precious little space to work with an Audison LRx 5.1k amplifier was mounted in the front luggage space and trimmed in Porsche carpet to look like it has always lived there. For the technically minded, this revolutionary 5-channel amplifier that uses Class A, Class AB and Class D technologies. In this case the outputs are used to drive a pair of Audison Voce AV K6 2-way components at the front. These are mounted in specially designed and built pods, which were then trimmed to match the rest of the interior. As the seating position is quite low and the Audison tweeters have an impressive dispersion characteristic, it was not necessary to raise them. Audison Voce speakers represent the pinnacle of car audio and deliver detail and clarity that truly make you believe you have a car full of musicians. A pair of Hertz Energy ECX 100 coaxials, which sit in equally cunningly crafted panels behind the front seats, add some rear-fill sound for ambience, particularly effective when listening to live music, but would also come in handy if recently married Anthony and wife should produce children in the future. The Hertz Energy ES200 8” subs are powered by the remaining 1000 Watt Class D channel adding all the bass that even festival-goer Anthony could need! The system is hung together with high quality Connection cable and as previously mentioned, the entire install is integrated by using the same original Porsche trim materials as the rest of the interior for a true “straight from the factory” look. But, what about system performance? Anthony concludes; “ I can honestly say that I have never enjoyed in car sounds as much as I do in my Porsche. I would even be bold enough to say it comes very close to the experience of home hi-fi. I am now constantly trying to find excuses to take the Porsche out even on short shopping trips for which it is entirely impractical, just so that I can turn it up and enjoy the experience!” Special Thanks: RGA Porsche, London www. rgaindependentporsche.co.uk Accutek, Winchester www.accutek.co.uk Equipment List Alpine CDA-9887R Imprint source unit Audison LRx5.1K Audison Voce AV K6 Components (bespoke door builds) Hertz ECX100 Coaxials (bespoke rear panels) 2 x Hertz ES200 Subwoofers (bespoke, removable sealed enclosures) Connection Cabling Skinz sound deadening Original Porsche carpet Approximate Audio Heaven system equipment cost excluding installation: £2000.00 Music 4 Driving Recommended by Anthony Forever - Papa roach Dangerous – Michael Jackson Faint - Linkin Park Almost Easy - Avenged Sevenfold Back in Black – AC/DC 14 Driving Sounds www.drivingsounds.co.uk Tel: 0800 652 5125
Two-Way Component Speakers T wo Way component speakers are the staple of the car audio installer. A good quality aftermarket set will utterly eclipse the quality of those fitted at the factory and will outperform a pair of ‘regular’ coaxial speakers that use just a single capacitor instead of a passive network to direct the signals to the right driver. In order to make up for deficiencies in cheap speakers, car manufacturers often deliberately remove important parts of sound. The missing parts tend to be high frequencies responsible for delivering clarity and directional information and low frequencies, which provide much of the fun! They use single components or simple networks to do this in a fairly brutal and unsympathetic manner, focussing mainly on cost rather than performance. When a specialist manufacturer designs speakers with more than one drive unit, they need to decide how frequencies are to be shared in order to get the very best from each drive unit. The separation of specific frequencies is carried out electronically via a device known as a crossover. The crossover needs to cope with many variable parameters such as temperature, listening level (thus power in watts) and many others. The only way to compensate for these variables is by careful design of the crossover using multiple, high quality components. Crossover design needs to take into account the specific characteristic of the drive units used as well, to ensure a stable and pleasing result. As a rule of thumb, the larger the diameter of a speaker the better it is at reproducing bass and less good it is at handling high frequencies whilst the far smaller tweeter is specifically designed to handle higher frequencies and doesn’t like bass at all! A 2-way set is usually designed to work with a subwoofer this is because the large amount of physical cone movement required at frequencies below 80 Hz adversely affects mid frequencies coming from the same speaker. Therefore, manufacturers strive for a stable performance between the frequencies 80 Hz to 20Khz, the latter being the upper frequency that humans can hear. In domestic hi-fi where space is less of an issue, the benefits of separating high frequencies from mid and bass frequencies has been exploited for many years. The home environment also allows the use of less rugged materials than those required for use in a car and cabinet design also massively influences the final sound reaching your ears. In a car however, space is at a premium and many attempts have been made to make as much sound from as little space as possible. Coaxial speakers were Tel: 0800 652 5125 www.drivingsounds.co.uk seen as the answer to the problem. These are effectively two-way components with the tweeter permanently mounted at the very centre of the woofer cone. These still provide a useful part-solution and are always a cost effective upgrade on factory installed speakers but are far from perfect. The main problem with coaxial speakers, apart from a lack of a proper crossover, is positioning. In many cars, the speakers are set low down in the door panel. This is OK for lower frequencies, as we tend not to be able to pinpoint the direction of these sounds too well. However, at high frequencies, our directional sense is very good and as we don’t listen with our knees (unlike grasshoppers, check it, quite true!) it is preferable for high frequencies to be reproduced where the resulting sound can reach our ears directly and this is another important factor when deciding on what speakers to buy. Fortunately, many modern vehicles can accommodate the use of two-way speakers although even here, manufacturers tend to make choices of convenience when it comes to placement. In many cars you will see tweeters mounted on either side of the dashboard facing each other for instance, which is far from ideal. Aftermarket speaker manufacturers have gone to great lengths to provide tweeters that can be mounted on any flat surface and directed toward the listener’s ears. Fortunately your FOUR MASTER is at hand if a convenient position cannot be found and will fabricate a custom pod for the tweeters to mount in and install it seamlessly into your car at the correct height and pointing in the right direction for you. You’ll get what’s called the On-Axis response. Driving Sounds 15 PRODUCT FEATURE
Page 1 and 2: Issue Two £3.00 For people who lov
Page 3: CONTENTS Car Features We show you s
Page 6 and 7: I n this article, we explain where
Page 8 and 9: Masterful Mercedes A chieving a won
Page 10 and 11: One of the main differences between
Page 12 and 13: Natural Beauty CS 260.30 The Audio
Page 16 and 17: F or nineteen years, Source Sounds
Page 18 and 19: With Wave Diffuser Without
Page 20 and 21: Founding Partner of UK car audio eq
Page 22 and 23: is produced by a Hertz EBX-F20 flat
Page 24 and 25: Why a FOUR MASTER? FOUR MASTERS are
Page 26 and 27: John Kleis Towers - Definitely Not
Page 28 and 29: Digital Radio (DAB) in ANY Car EZi-
Page 30 and 31: voids behind the mounting positions
Page 32 and 33: A n audio system in a car will draw
Page 34 and 35: Heavenly Catering f D eborah Grech-
Page 36 and 37: Distributed in the UK by www.fourca
Page 38 and 39: Established in 1991 by Jeff Lunn in
Page 40 and 41: Now You See It, Now You Hear It! C
Page 42 and 43: eproduction in the vehicle. The DA1
Page 44 and 45: SPOTLIGHT ON FOUR MASTERS Highdown
Page 46 and 47: The Music Lover’s Guide to Car Au
Page 48: Love music on the move? You don’t

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