Say Hello To The Future!

JL Audio are a renowned American manufacturer of the highest quality subwoofers, amplifiers and speakers. Some of our best sounding installs have been based around JL Audio products and it is true to say that there is something for everyone within the range.

I was lucky enough to attend a training day with JL Audio’s head of training, Steve Turrisi in March 2017 where, without exaggeration, I was shown the future of car audio. This year JL are launching a fabulous new range of products so let me describe what I was shown.

In June we will see a new entry level speaker range designated C1. These look set to clean up on the simple speaker upgrade market. They are robust, great sounding and very easy to fit as they come with installation collars to cater for different vehicle apertures.

 

 

I am sure I will be fitting a lot of these in the near future.

As mentioned there will also be a new ultra high-end speaker set, the C7. This speaker has been designed from the ground up to be the absolute best. Drawing from JL Audio’s many years of experience this will be a milestone in audio performance. It will not be cheap but the best never is.

Expect a price tag in excess of £2000 for these magnificent drivers but I am sure we will not be short of takers when these launch in summer 2017.

Already available are the new RD series of amplifiers which fill the gap between JX and XD. Boasting huge power output from a small chassis I have installed quite a few now and they are extremely impressive.

The RD amps are extremely well priced for the level of performance they deliver, the build quality is amazing and of course, they have the legendary JL sound. Available in mono, 2 channel, 4 channel and the incredible 5 channel every application is catered for.

As if this wasn’t enough I’ve saved the best till last. Available now are the stars of the show. JL Audio’s new line of digital processors the FiX and TwK.

With these products, we will no longer have to endure the sound supplied by factory head units that cannot be swapped out. The BMW, Ford, Audi and VW factory radios can be made to sound amazing. Couple this output to a great amp and speakers and there are no limits to how good your car could sound. This is thanks to the amazing TuN software developed by JL and an installers dream come true.

As can be seen, the software gives me complete control over every aspect of the audio system. There is nowhere near enough room here to describe all the features but trust me, this is a game changer. Car audio will now take the next great performance leap.

For details of all these great new products call me on 01625 432707 or better still call into our shop on Sunderland Street in Macclesfield.

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Practicing Safe Sound

There are many ways to upgrade your car audio system and let’s face it, most cars need it. I’m looking at you BMW, VW and Porsche in particular! It is not always possible to upgrade the head unit but it is always possible to improve the speakers. At Car and Home Stereo, we carry speakers by JL Audio, Audison, Hertz, Rainbow and others. This means we can choose the right speaker to suit the car and the customer. We will carefully install your speakers with custom built collars and fittings as well as add sound deadening in the door to improve its acoustic properties. The end result will be a vastly better sound without any cosmetic changes to your car.

And that is where we are finished but before you leave, a word of warning. Please take the time to run your new speakers in. The running in period varies for different speakers but generally, we recommend around 10 hours play time. Running in means keeping the volume at a sensible level without any large bass settings and we will always advise what should be the maximum volume for this period.

If this procedure is not followed your speakers may not fail but they will not reach their full potential, let me explain why.

A speaker is a transducer that converts electrical energy into sound and at the heart of the speaker is a coil of wire sitting inside a magnet. It is bright, shiny copper.

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It’s not necessary to know how it works but the important point is that when you pass electricity through a wire heat is generated and the higher the electrical current the more heat is generated. Now, this coil of wire is crucial to the accuracy of the speaker and it is protected by a thin coating of lacquer. This lacquer is quite soft when new and easily damaged by heat but if it is gently warmed over a number of hours the lacquer will harden.

I bet you can see where this is going! If a new speaker is subjected to a lot of power and played loud the voice coil lacquer will boil causing short circuits. Now while this will not necessarily cause the speaker to fail it will mean that the voice coil is not a single continuous wire which leads to a ‘lumpy’ effect within the magnetic gap. This, of course, means that the reproduction of sound is not linear and your investment will not reach its true performance capability. In extreme circumstances, the lacquer is burnt and expands into the magnetic gap which will cause a scratchy sound. These failures are non-reversible, cannot be repaired and are not covered under any warrantee.

 

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So that is why we advise the running in period, to gently warm the voice coil lacquer causing it to cure. This hardened lacquer can now stand the heat of high power and your speakers will really perform as the designers intended.

I cannot overstate the importance of running in, a speaker is more likely to be damaged in the first few hours of use rather than over the rest of its life. At Car and Home Stereo, we want you to get the best possible sound from our expert installation so just hold back on the volume for a few hours, you’ll be glad you did.

 

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.

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.

Keeping It Simple with Bose

For many years Car and Home Stereo has been synonymous with Bose Hi-Fi. Over the years we have installed hundreds of sophisticated and powerful home theatre, multi room systems. It’s true to say that most of them are still providing their owners with daily pleasure, such is the reliability of Bose audio.

While every system was designed to our clients needs they all had one thing in common, cables, and lots of them! We had to spend as much time installing cables as installing the system not to mention the in depth design process to determine where everything needed to be. All this hidden detail could amount to a sizable cost. Now the whole process has become an awful lot simpler thanks to WiFi!

Wireless streaming of your music is not a new idea of course but most solutions have been of average quality often with clunky user interfaces. What is really important, apart from high quality sound of course, is that it is easy to use. The Bose SoundTouch wireless music system is just such a perfect blend of quality and simplicity.

The SoundTouch system can communicate with any WiFi connected device in your home be it Apple or Android, PC or Mac. It will search for any music you have stored and allow you to play it anywhere in your house. If you use a streaming service such as Spotify or Deezer you can seamlessly call up your favourite music directly from the Bose control app. There is even a smart Bluetooth capability to allow direct streaming to multiple devices around your home and of course there is access to the whole world of radio via the Internet.

Now you can have a whole house, high quality solution without all the complex cabling. Whatever your needs there is a SoundTouch wireless system available. From a full 5 speaker surround sound home theatre system for the living room to a simple stand alone music player for the kitchen. There is even a wireless amplifier that can be used for outside or as bathroom speakers. The amazing SoundTouch 300 sound bar is extremely popular as is the Sound Touch 20 free standing unit.

The possibilities are endless and I would urge you to contact me at Car and Home Stereo on 01625 432707 to discuss the ideal system for you.

Something Special

Know someone who’s obsessed with music? Want to surprise them with a new set up? Know absolutely nothing about audio systems?

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Why not pop in to Car & Home Stereo? Tim would love to be of service! No one knows sound like Tim and as a musician he understands the importance of it.

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That’s why we are bringing you the best from Audison, Alpine, Bose, JL Audio, and many more!

Listening to music with quality speakers is just an extraordinary feeling and there are so many options to choose from in our incredible selection of audio systems, radios and even headphones. We are sure we have something suited for everyone’s taste and we are ready to help you find something be it for you, or a loved one.

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Don’t be stranger this Christmas! We’re here on Sunderland Street in Macclesfield and we would be delighted to help you. Please don’t hesitate to call us on 01625 432707.

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Upgrading the Defender

The Land Rover Defender is a true British classic design. Although, now sadly out of production, the longevity of the Defender means that they will be on (and off) our roads for a great many years to come.

landrover defender stock

It’s design hasn’t changed much in its 70 years and, despite continuous improvements to comfort the audio, performance has always been poor. A relatively noisy environment coupled with small speakers has always meant the sound in the Defender has a lot left to be desired!

As Macclesfield in Cheshire is a fairly rural community there are a lot of these vehicles about as you can imagine and over the years I have developed an audio upgrade package which is powerful and discreet.

The first challenge is the speaker size. Being only 10 cm without modification means that the bass performance is limited. Step forward JL Audio! As the undisputed leaders in subwoofer design, JL Audio are perfectly placed to design speakers that have a much better bass response. This is not to say that a 4 inch speaker can replace a subwoofer but JL Audio’s expertise means that you will get a massive improvement over the stock speaker.

c2 400 subwoofer

To bring the bass response up to the required standard we need to fit in a subwoofer. The irony is that although the Defender is a large utility vehicle, there is almost nowhere to discreetly install a sub box without compromising useful space. JL Audio is here to the rescue, again, with their amazing sub, the 6w3.

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This astonishing unit is a true 6 inch subwoofer. It is optimized for a tiny enclosure of just 0.125 cu ft. I have developed a carpet trimmed speaker box that will fit just under the roll cage bar behind the front seat. One can be used but for best results we recommend one either side to create an effective 12 inch sub. This allows for a much smoother performance and really blends with the music.

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So now we have a sub we are going to need an amplifier. Again, space is limited but fortunately there is room under the driver’s seat for a compact unit. It makes no sense to just amplify the sub so we always install a multi-channel unit to power sub and speakers.

Here we must address the acoustic issues in the vehicle because of the speaker layout and the rather boxy interior of the Defender the sound staging is challenging to say the least. It is essential to install some sort of signal processor or regardless of the quality of the installed equipment, the sound stage will be poor.

I now always use the Audison Prima AP9Bit amplifier. This amazing unit has a full digital signal processor coupled to a powerful 8 channel amplifier in a very compact chassis.

Audison

This amplifier can be configured in any way I need depending on the complexity of the installed system. In the Defender it can be a 5 or 6 way for one or two subs. I can then configure the signal processor for the car acoustics and the personal musical tastes of the owner. The software is very powerful, providing  full spectrum equalization on every channel with very fine time alignment available to place the sound stage where it needs to be.

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As a musician I can appreciate the subtleties of sound and this software allows me to bring out the finer details of the music even in a challenging environment like the Land Rover Defender. I am often challenged by owners who say you can’t get a good sound in a Defender but I guarantee that I can. I have installed many of these systems now, both for private individuals and for local dealerships, the feedback is always the same, that they just can’t believe how good this sounds. One customer even came back to tell me that the sound was better than in his Bentley GT!

It is true that the kit described above is extremely good but without the ability to carefully tune it the results would be arable at best. That is where I can make the biggest difference, my experience and exacting standards mean that this great equipment can be enjoyed to its true potential and I feel that this is true value.

 

Whatever you own, Land Rover, Lamborghini, Lotus or any other car with a challenging audio performance I can make it better, give Tim a call on 01625 432707 or email sales@carhomestereo.co.uk to start your journey to better sound.

 

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.

Sharp and Sleek Bose Soundtouch Speakers

We are proud to introduce the latest addition to the Bose Soundtouch family, the Soundtouch 300.
This innovative sound bar offers a level of flexibility and performance that has never been seen before.

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Bose has always been a technology led company and over the years have developed a range of home audio systems that have revolutionised the way we see, and use Hi-Fi.

The Bose Soundtouch platform has taken the wireless, networked audio market to new heights of performance which, coupled with its elegance and simplicity of use has made it the market leader.
The Soundtouch 300 is the first in a new range of home theatre systems that feature amazing performance, stunning looks and an unrivaled feature set.
The new black glass top has been engineered by one of the most famous automotive glass producers in the world while the sleek design draws from years of in house development.

At the heart of the system  is the new sound bar.

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This can connect to your TV via HDMI or optical ensuring complete compatibility.
It contains the now famous Bose AdaptIQ software to ensure the best possible sound in any room regardless of size or shape and once connected to your home internet network you can stream all your music to it via WiFi or Bluetooth.

But of course it doesn’t end there as there are also a couple of optional upgrades.

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If you enjoy the power and performance of modern films you should add the incredible Acoustimass 300 sub. This relatively small unit can be mounted anywhere in the room as it utilises a wireless connection to the sound bar. All it requires is a mains connection. The AdaptIQ software can perfectly integrate the sub into the acoustic environment.

The second optional upgrade is the Acoustimass 300 rear speakers.

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Again these use a wireless connection to the sound bar so no more trailing cables to the back of the room. These will add a true surround sound experience to your movies and music!

This is the first of a whole new range of amazing products from Bose that will once again place it firmly at the top of everyone’s must have list.

At Car and Home Stereo we will be stocking the full range of these systems and we would welcome you for an audition at our showroom on Sunderland Street in Macclesfield, Cheshire.

 

 

If you would like to know more, please don’t hesitate to call us on 01625 432707.

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.