Vehicle Specific Systems: BMW E90

This car is a firm favourite of ours especially in the M Sport however, the stock audio is nothing short of terrible. There is a distinct lack of any real bass and even with the optional stock tweeters there is no sparkle or liveliness in the sound. A lot of owners are unaware that there are bass speakers are located under the front seats as the low-frequency performance is so bad. There are of course many options to improve the audio but perhaps the simplest is to replace the speakers. The BMW speakers are a unique size and fitting a standard set can be difficult, fortunately, there are several companies now making BMW specific replacement speakers. Foremost amongst these are Rainbow, a German company specialising in some very high-end speakers.

The Il-c8.3 kit is suitable for all BMW E9x and F series and comes complete with all OE style connectors. All speakers will fit in the standard location with the minimum of modification. What’s more, all the original speakers can be re-installed when the car is sold or returned.

The difference between the Rainbow and the stock speakers is astonishing even without fitting an upgraded amplifier. The sound stage is better with vocals being presented cleanly, the mid range is much less confused and at last, there is a decent bass response. It is possible to just change the door speakers but I would highly recommend replacing the whole set.

Another popular vehicle with an underwhelming audio system is the VW Golf. Like the BMW the stock system has no sparkle and again a poor bass response. Once again Rainbow step in to provide a direct replacement speaker set, one for the VW Golf Mk5 and one for the Mk6. Available in three and two-way, this upgrade immediately lifts the whole audio soundstage to a new level. The kit comes with all fittings and collars required so it is possible to fit yourself if you wish.

Of course, you may be looking for a complete upgrade for your Golf Mk6 or 7 and here we can turn to the masters of car audio Audison. They have designed a specific system for this car that replaces the speakers as well as adding a custom tuned amplifier and a  super slim sub enclosure designed to seamlessly fit the car.

 

This system brings a whole new dimension to the audio system with a full digital signal processor that is built into the compact amplifier that sits discreetly under the seat. It has been developed from painstaking testing and tweaking to make sure that it both integrates perfectly with the stock car and provides the best possible sound. Again this kit comes complete with everything you will need to install it but unless you are comfortable removing the trim and panels from your car we would recommend letting us install it.

Of course, not all cars are covered with a ready made upgrade kit and this is where Car and Home Stereo can really help. Over the last thirty years, we have seen almost every type of vehicle and our comprehensive knowledge allows us to design and install audio systems that will delight. We strive to design systems that will blend perfectly with your car whatever your requirements may be. From the simplest speaker upgrade to a complete multimedia systems our aim is to put a big smile on your face every time you listen to it and that is what music should be about.

 

If you are ready to start your journey to better sound then please call Tim on 01625 432707 or better still call into our shop on Sunderland Street in Macclesfield for a chat and a demonstration of the best that car audio can be.

Demonstration of Distortion

An interesting situation occurred at Car and Home Stereo recently that I would like to share. It highlighted a phenomenon that is quite counter intuitive and led to some interesting discussions.

We have a demonstration Land Rover Discovery that has a simple, high quality audio system installed that is tuned to perfectly suit the interior acoustics. We always encourage our customers to sit in and experience it as it shows what can really be done with car audio. The amplifier that powers the system is the magnificent Audison 5.1K which develops a true 1650 Watts.

There is one pair of component Hertz Mille Legend speakers in the front doors and a Hertz Mille subwoofer in the rear.

A customer recently auditioned the system and we spent a good hour playing different types of music with a view to producing something similar in his car. He was completely blown away with the sound, couldn’t believe the clarity and how the sub blended perfectly with the whole system. And then he said ‘I love it, but it’s not very loud is it?’. In fact he reckoned his standard Ford system was louder!

Now I know just how loud our system is and the odd thing is that the cleaner the sound the less we perceive volume. Since we had some time I decided to run a little proof experiment with my customer’s car.

As part of our equipment set we have an industry standard spectrum analyser which is also equipped with an SPL meter. It was a simple task to set this up in the Discovery first and then the Ford to compare. As expected our Discovery hit 126dB easily, the Ford however struggled to hit 110dB. In real world terms this equates to a perceived doubling of power (a true doubling is 3dB but we don’t really hear it that way). The next test was the distortion level. By plugging an oscilloscope into the amplifier output we can measure the clipping levels. Unsurprisingly the Discovery registered less than 5 percent distortion at full volume as this was how it was set up. However the Ford reached 5 percent at a little over half volume and climbed to over 25 percent.

There is no arguing with the figures so what is going on? Simply that the higher  distortion levels were being registered as unpleasantly loud and our brains are trying to get us to turn it down! Distortion is the quickest way to destroy a speaker or indeed your hearing.

At Car an Home Stereo we value our customers and hope to be providing high quality audio systems for many years. A distorted sound system will very quickly do serious harm to our hearing and that is why we only choose the best equipment and like to carefully set these up to give the best possible sound. Brands such as JL Audio, Audison, Hertz and Dynamat may not be the cheapest but certainly are amongst the best. The fact that when installed correctly they can deliver an amazing sound makes them excellent value for money.

As to my customer with the Ford, he now has a fabulous system based around a JL Audio amp and speakers with a Rainbow active sub. He loves to play it loud and I know it will give him years of pleasure without doing any harm.

If you want to experience the Discovery sound system or would like to discuss how we can improve your car please all us on 01625 432707.

What To Look Forward To In 2017

It’s good to be back after the festive break and there is a lot to look forward to in 2017.

World renowned audio manufacturer Audison have just announced their new Thesis speaker range. The Thesis amplifier represents the absolute pinnacle of performance without compromise and now there is a speaker set available to match. If you are looking for the absolute best possible sound then this is it.

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Staying with Audison, the new slimline Prima subwoofers and enclosures offer stunning bass performance from a very compact form. These will appeal to anyone who does not want to sacrifice much boot space but still demands a Hi-Fi response.

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There will also be a new Prima Pack custom installation kit for the BMW 1 series. This car has always had a very disappointing standard audio system and the Prima Pack is a tailored solution comprising the stunning AP amplifier, a custom Prima speaker pack and compact subwoofer. As with all the Prima Pack systems the factory head unit remains unchanged but the audio performance is greatly enhanced by the AP amplifier. The speakers fit perfectly into the factory locations and the sub is designed to blend seamlessly with the factory trim.

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On the other side of the Atlantic, JL Audio have released their amazing new processors, the new Fix and TwK.

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The FiX range is simplicity itself to use and automatically deals with all the anomalies inherent in vehicle factory head units. Building on the success of the CleanSweep processor, the FiX can automatically de-equalise audio streams and can even remove spurious time alignment errors giving  a flatter, more open sound from which we can build a better audio system.

The new TwK processors take this a huge step further by allowing access to a vast range of processors via the JL Audio software. From input/output configuration to full spectrum equalisation, this product means that every installation can be tuned to perfection.

Over the break we have been busy building new demonstration stands to showcase some of our best car audio equipment as well as tweaking our Land Rover Discovery demonstrator. This simple car audio system still astonishes me with its clarity and power showing what can be achieved with just one pair of speakers, a subwoofer and amplifier. If you haven’t heard it and can come down to our shop on Sunderland Street in Macclesfield I would encourage you to do so, it is sure to impress.

Our focus, as ever is on installation of the highest quality whether it is a simple dash cam or a full blown custom audio system. We are proud to be a part of the national FourMasters group offering the highest installation standards and a three year warranty on installations.

Please feel free to pop in or give me a call on 01625 432707 to discuss ideas and start your journey towards better sound!

Wishing you a happy new year!

We hope your 2017 has got off to a good start!

Here, at Car and Home Stereo we already have some exciting, new products coming through the door. Come to our shop on Sunderland Street, Macclesfield, and see what we can do for you.

Simon Says? Speakers Please!

For this instalment let’s look at speaker installation. The speaker is the last piece of hardware between your music and your ears and as such has an awful lot to do with the sound you hear.

The science behind the speaker is extremely simple; pass an electric current through a wire that sits inside a magnetic field and the wire experiences a force, vary that current and you vary the force. Of course this demonstration produces no sound but if we attach the wire (or coil) to a diaphragm (or cone) we have the nucleus of a working speaker. The electronics in the amplifier produce the varying electrical current and the speaker responds, creating the highly complex vibrations in the air that we hear as music.

The above description is of course highly simplified and in reality there are many more aspects to speaker design. We have to consider the weight of the moving parts, the resistance to movement within the materials themselves, the linearity of the magnetic field, the quality of the coil wire, the damping to prevent uncontrolled excursion, stability of the frame and so on and so on! Fortunately all of these considerations are engineering problems and this means that better engineering will lead to a better product.

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When Mr. Ford or Mr. Audi or even Mr. Porsche are told that they have to put speakers in their cars their first consideration is not about quality even when they enlist the help of respected Hi-Fi companies. Their overriding concern is one of reliability. A blown speaker is a warrantee issue and that costs money. The trouble is that a speaker that can survive heavy metal hard core country rap at full volume has to be made super resilient. This speaker is not going to be able to respond to the subtle nuances of any quality musical performance.

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At Car and Home Stereo we are always going to install a high quality speaker, carefully selected to match the vehicle and musical tastes of the customer. This is where our installation skills are needed. The average car door is a challenging place for a speaker. It is a steel box that is often wet inside, can be freezing one day and very hot the next. There are moving parts within it and it is subject to a large amount of vibration and noise. Let’s look at a typical installation addressing each point.

First of all we carefully remove the inner trim making sure that all clips and seals are retained. After this the next job is to treat the metal skin with sound deadening material which will absorb road noise and any vibrations within the door.

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Particular attention is paid to directly behind the speaker as this will absorb the sound generated by the back of the cone and prevent reflection back into the door panel.

Once the outer skin has been treated we apply a foam barrier to the inner skin. This forms a watertight seal and acts as a thermal and acoustic barrier. This keeps the car warmer in winter, cooler in summer and again reduces road noise. The difference these treatments make to a car is astonishing.

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Now we come to installing the speaker. The factory units are often built to fit so we must make panels and collars to allow a perfect fit to the door.

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It is very important that no moisture gaps are left as it may come as a surprise to know that doors are designed to let rain flow through them. Any gaps could lead to a wet floor so we make sure everything is sealed with high quality silicone, both the collar and the speaker, this also ensures no air gaps to compromise the speaker performance.

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Quite a lot of work but absolutely worth it. These Audison APK speakers sound great anyway but by treating the door they are at least 30% better.

If you would like to know more about how we can improve the sound in your car please call Tim on 01625 432707.

Cutting Edge! with JL Audio

Today let’s look at the range of fantastic high performance products from JL Audio.

Formed in 1975, JL Audio are based in Florida USA and from the very start, their passion has always been to produce the best possible products. Originally they concentrated on sub-woofers and they quickly earned an enviable reputation for amazing power and performance. More recently JL Audio have expanded their range to include speakers and amplifiers with the emphasis once again firmly on quality and performance.

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It’s true to say that the JL Audio range of subs has something for everyone. From small, discreet custom enclosures to high output monsters to true Hi-Fi quality audiophile drivers. The engineering expertise at JL Audio means that even their least expensive sub still sounds amazing and will work in a relatively small enclosure.

Every in car system will benefit from the installation of the dedicated bass speaker and at Car and Home Stereo we will make sure that it is fitted and set up correctly.

 

 

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Of course a sub-woofer always needs an amplifier and so the logical step for JL Audio was to produce their own range. Car and Home Stereo is proud to be a JL Audio Signature dealer which means we carry a wide range of products. The XD range of amplifiers is a particular favourite of mine. They only take up a small amount of space but deliver an amazing performance! From the compact XD 200.2 to the immensely powerful XD 1000.1 they offer a level of flexibility and performance unparalleled to anything else.

Never a company to stand still, JL Audio have just upped their game and released a new range of amplifiers designated the RD series.

 

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These units are extremely good value for money and sound amazing as they are based on JL Audio’s NexD D class technology. Multiple input configurations are available making for pretty much universal compatibility while the small footprint means installation is straight forward.

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JL Audio speakers are some of the best around. Even the entry level TR series have a detail and clarity many other more expensive speakers cannot compete with. Taking a step up to the C2 series and we are well on the way to a true Hi-Fi performance. Where space is tight the C2 400 (a 10cm speaker) punches far above its weight for low frequency. This has become my first choice for the Land Rover Defender and is more than capable of overcoming the road noise while still producing a full range performance.

One speaker range stands out though, the C5. This speaker range has a natural and transparent sound that is simply breathtaking. OK they are not cheap but that is not the point, where high fidelity is the goal you have to go a long way to beat this speaker. The tweeter alone is one of the smoothest speakers I have heard with vocal and piano pieces a joy to experience.

And of course there are many more products in the JL Audio line up. There are processors that allow seamless integration with factory standard audio systems. These units can repair the poor performance of the standard head units found in BMW, Audi,  VW and others that can not be changed meaning you do not have to put up with the stock audio.

There is also a range of very high performance marine speakers used on the like of Sunseeker power boats. However at Car and Home Stereo we are land locked and there has never been a big demand for these here!

The most important point is that, with JL Audio, we have a range of products that can suit any application and any performance requirement. We have the experience and resources to make sure we offer and install the best possible sound at any budget.

 

Give Tim a call to discuss your requirements or, better still, call in to the shop in Macclesfield for a coffee and a chat.

Don’t Sacrifice Quality Today featuring Bose

Here at Car & Home Stereo, we don’t just stock speakers we also have a great variety of Bose accessories.

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We don’t think you should have to sacrifice quality if you don’t have a high tech set up so we have some incredible Bose headphones in store. It is an ideal birthday or Christmas present for just about anyone.

 

Pop into Car & Home Stereo on Sunderland Street for more information.

Audio Installation with Full Instrumentation!

Over the 40 years that Car and Home Stereo has been installing audio systems to cars we have seen enormous changes. Changes to the source units available (who else remembers 8 track cartridges?!), changes to the playback systems and of course changes to the vehicles themselves. While a 1970’s Ford Escort shares a common purpose with a 2016 Audi TT, they share very little under the skin.

Most vehicle systems now are completely controlled by the on-board computers, true Drive by Wire. These systems have meant much greater reliability, higher efficiency and flexibility. However it has also led to a much lower tolerance of interference with respect to changes. Even the slightest change to a vehicle system can generate fault codes and even lead to vehicle malfunction.

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This, coupled with fully integrated entertainment systems would appear to spell the end of audio upgrades, leaving you stuck with the dull factory installed system but help is at hand!

Fortunately our industry has risen to the challenge and developed systems that can be seamlessly integrated with any factory system regardless of complexity.

If you have a Bose or Infinity audio system in your car then the speakers may well be of a lower impedance than standard. This would mean a blown speaker could not be replaced with an alternative to the factory part but we now have speakers that are specifically designed to be added to factory systems meaning perfect fit and far better sound.

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You may want to change the basic radio in your VW Golf to something with DAB radio or satellite navigation. The standard VW radio also displays parking information and climate control settings, there are controls on the steering wheel for volume and track search. These are features you would not want to lose and we can supply units that have all the facilities you may want as well as supporting all the standard vehicle displays.

With the advent of computer controlled systems there are also hazards to changing the head unit to one that is not compatible with the vehicle wiring. The results can be from your new unit not working to damage to the electrical system. At Car and Home Stereo we take safety very seriously and have a wide range of specialist interfaces to ensure that any new system integrates perfectly with your car.

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Of course you may want a complete upgrade to your system but do not want to alter the look of your dashboard. This is an area in which we excel. Whichever car you drive with whatever audio system we can improve and add to it. Regardless of complexity we have the tools and skills to seamlessly upgrade your listening experience. With the products from Audison, Hertz, JL Audio, Pioneer, Alpine and many others we can create your perfect sound system.

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From Beetles to Bentlys we have worked on just about every vehicle out there and every one gets the same level of care and attention. Our goal is to give you a powerful audio experience whatever your budget and we will work very hard to make sure you get exactly what you want.

So remember, whatever the car, we can help. Contact us now to start your journey to better audio.

Instrumental Interlude

This week, an instrumental interlude to our weekly blogs on the world of car & home audio engineering, as we pause for breath and take a look our passion for making music.

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Tim is a keen musician and plays guitar for a local band in his spare time. Being active on the creative side of music allows Tim to better appreciate the aims and results of sound engineering. There’s nothing quite like hearing your own sound back in crystal clear quality!

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Here at Car Home Stereo Macclesfield, in the Heart of Cheshire, we take pride in our passion for all sides of music and sound. If you get excited for all things music & sound, make sure to get in touch – we love a good natter!

We look forward to seeing you.

The Art Of Tuning

We go to great lengths at Car and Home Stereo to find, test and install the best audio equipment available. Leading brands such as JL Audio, Audison, Rainbow and Hertz are all companies at the top of their game and are producing world beating equipment. An example of which is the new Profi range from German manufacturer Rainbow. Their T28 tweeter is one of the best speakers in the world right now.

 

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Car interiors have never been better, but unfortunately they are not the ideal acoustic environment. There are steps that can be taken to improve this and this should always be done before embarking on a serious upgrade. However, the (small) vehicle space still contains lots of soft and hard surfaces creating absorptions and reflections not to mention the fact that the speakers  and the listening position may not be in the ideal location.

 

Let’s imagine a fictitious “perfect” speaker. This unit has been designed to produce a perfect range of frequencies for a totally flat sound. This can be measured and verified. Now, let’s place it in a car in the typical location in the door. Allthough this is the same speaker the environment has had a dramatic effect on the sound output. To compound this our brains are very good at judging where sound comes from and the  speaker location will be very obvious. Our carefully designed and very expensive speaker has been severely compromised.

 

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So how do we fix this? We could re-engineer the speaker for the new environment but of course that is not practical. Fortunately the answer lies in digital signal processing. A modern, state of the art processor like Audison’s Bit 1 has the power to solve all the installation and acoustic problems we find in car audio. Of course, it requires a great deal of skill to set up properly but the results can be astonishing.

 

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All the issues of frequency cancellation or addition can be solved by using the powerful on board graphic equalisers. Positional issues can be solved by applying time delays to any of the speakers which will make it appear that the sound is coming from a different location. This will have the effect of making the sound stage wider and more dynamic, more like a live performance. Individual speaker level controls will ensure the sound is perfectly balanced for the driver or both front seats as required. We even have the ability to program multiple adjustments and to save them in up to four presets. This is especially useful for convertible cars so the sound can be adjusted for ‘top up’ and ‘top down’ at the touch of a button.

 

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Of course we have all the latest technology and tools to ensure the perfect sound for you.

 

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Our latest demonstration vehicle features this processor and we have built in the capacity to bypass it, it really is an ear opener to hear the difference a well set up processor makes.

 

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If you are interested and would like a demonstration of how good car audio can be, please call us on 01625 432707, we love to show it off!