Archive for the ‘Customized Crossover Network’ Category

High-fidelity capacitors – custom passives

Tuesday, October 18th, 2011

Mundorf M-Cap Supreme Capacitor

Listening Impression:

The M-CAP SUPREME introduces affordable high-end sound to any quality speaker drivers. It delivers a very spatial sound with plenty of depth and gives good reproduction of the musical nuances. Detail and depth from the high treble right down into the low mid-range becomes more distinct. This is your first step into high-end crossovers. The Supreme is a clear and transparent sounding cap with a good sound stage, providing a good improvement in clarity, focus and dynamics. The degree of improvement is comparable to upgrading to high-end cabling. We were definitely very impressed when we first auditioned them.

Mundorf M-Cap Silver Oil Capacitor

Listening Impression:

Mundorf states: “…wonderfully spacious and detailed sound reproduction …an even fuller and smoother tonal richness and diversity. This capacitor’s ability to bring out the finest nuances and the subtlest distinctions make the music sound more alive and “juicy”, yet without unnatural emphasis of any individual effects. …Wonderfully spacious music reproduction… ”. Yes, exactly what we felt when we first sampled the Supreme Silver/Oil capacitors. The air, bloom and the high-end feel just became more apparent. The cap gives heighten attention to music detail and depth throughout from top to bottom. The music presentation is very smooth and liquid. The only drawback is the extremely long burn-in period and the rollercoaster performance while waiting. To overcome this teething problem, we offer a 100hour, 200hour or 300hour burn-in service for a minimal charge.

Mundorf M-Cap Silver/Gold Oil Capacitor

Listening Impression:

The Silver/Gold in Oil is Mundorf’s current highest offering and they are among one of the best and most exotic capacitors available in the market. They are expensive but honestly, it is worth it. Compared to the Mundorf Silver/Gold, they have better layering and sound even more airy. The spatial soundstage window is opened wider and deeper. They are richer tonally and better layered than the Mundorf Silver/Gold. The Silver/Gold/Oil excels in refinement of highs and micro-details like the like the Mundorf Silver/Gold but takes it a few levels ahead in extension and creates more depth and width as if you have a larger area beyond the confinement of your room or car. Install it and you may never want to remove it.

Duelund VSF Aluminum Capacitor

Listening Impression:

Calm as a sleeping baby. The Duelund VSF capacitors give you that smile the minute you press the play button. The chocolate bar actually tastes better than it looks. One is tempted to close the eyes (although it is not a good idea while driving) and relax in sheer peacefulness as the music flows from the speakers to your ears and down to your heart and soul. The VSF Aluminum is Duelund’s most entry level offering but it still spells high-end at an affordable level. It is has less flair and is leaner sounding than some of the other high-end capacitors but they sound very natural and has the tonal that most capacitors are dying to achieve. Compared to the VSF Copper, it sounds more forward and less layered. Nevertheless to say, if you own a really kick-ass high-end speaker driver, you ought to take a bite on these.

Duelund VSF Copper Capacitor

Listening Impression:

We were charmed by this capacitor. The VSF Copper comes across very natural, smooth, clear, open and keeps everything in place in an extremely calm and controlled manner. One may think that this is a boring capacitor like some analog sounding capacitors in the market but we term it very natural for its ability to deliver dynamics whenever the type of music calls for it. The tonal balance and harmonics is a definite win-win and we love how it sounds with both instruments and human voices. It does not have the depth and wow factor like the Mundorf Silver/Gold/Oil but it makes up for it with its awesome tonality. We were extremely happy with how the imaging and separation of every individual instrument is portrayed with precision rather than cluster. And we just have to stress again, the VSF Copper is exceptionally natural sounding. This is a definite must have for any serious audiophile or music lover.


Duelund Cast Copper Capacitor
the king of the capacitors!

Listening Impression:

The Duelund CAST Capacitor is our no holds barred flagship capacitor. The construction builds on the foundation of our Virtual Stack Foil design but does so with the addition of a proprietary WPIO dielectricum which necessitates several days of impregnation under high pressure. We will spare you the technical details but as complicated it may seems, wait till you have heard how it sounds. The cast design helps music flow effortlessly with utmost presence and palpability. The background is pitch black, quiet and extremely calm. Music is delivered in a timely and high-end fashion. It is a seriously no games, just music and the best that money can buy when it comes to capacitors for passive crossovers. It is available as pure copper or pure silver.

Updated new look – CAST cap

Vcap Reference Grade Teflon Capacitor
TFTF Reference – teflon film tin foil audio capacitors
CUTF Elite Reference – copper foil teflon film audio capacitors
A high-end capacitor use on our general modifications equipment and customized passives as coupling cap
Kindly call audio creations for further information.
or view the link :

V Cap Reference Grade Capacitor for High-end Mods

Wednesday, September 29th, 2010

V cap Reference Grade Teflon Capacitor and V cap Elite Reference Capacitor

A high-end capacitor for use on our general modifications equipment and customized speaker passives.

Kindly call in for further information.
or view the link :

Audio Creations Customized Crossover Network

Monday, October 12th, 2009


In an ideal and simple form, we could use full-range speakers to wonderfully playback music in our home and car hi-fi. However in reality, most full-range speakers in exception to a few expensive and exclusive speaker drivers are not capable of reproducing the full frequency spectrum faithfully without signs of strain.

Instead of using full-range speakers, some car manufacturers adopt co-axial speakers that promises to give a step up in sound performance. The co-axial speakers are sold in pairs, each consisting of a high frequency driver, called a tweeter, attached to a cone, called the mid/woofer. As a complete whole, it plays the full range of frequencies from the highs, lows and the frequencies in between in which we call midrange.

The speakers will be fed with high level music signal by the player’s in-built amplification or a dedicated amplifier. In the case of a 2-way co-axial, a small capacitor is placed before the fragile tweeters to only allow the high frequencies to enter the voice coil and diaphragm. The midrange and low frequencies are filtered away to protect the tweeters from being damaged. This is the simplest form of a crossover, called a high-pass filter.

In most cases the bottom cone will still be fed with the entire music material and the effect you get with the extra tweeters, is a sparkle in the highs which translates to a slightly better separation and clearer reproduction. Some manufacturers introduced 3-way or 4-way co-axial speakers or 6×9” speakers, with large peak power ratings but sad to say most are hypes without much substance.

2-way separates or components were then introduced that comprises of a pair or tweeters and a mid/woofer. Tweeters came in all types of size and shapes, with ½”, ¾”, 1” and even 1-½” dome variants, using all sorts of materials from silk domes, aluminum/metal domes, beryllium and even diamond, each with it’s own character and capabilities. Common mid/woofer sizes are 4”, 5”, 5.25”,6”, 6.5”, 7” and 8”. These come with engineering designs of all sorts, various build quality, and cone materials such as paper, polypropylene, aluminum, Kevlar or hybrid materials. 3-way separates goes one step further by introducing a dedicated midrange driver that is usually 3”, 4” or 4.5”. In true high-end cases, a 5” mid-driver is used but one has to take into account the complexity of installation and space constraints. 3-way separates introduces better division of duties, where highs are dedicated to the tweeters, mids to the midrange, and lows to the woofer. Properly set-up and implemented, they can sound a step up in performance compared to a typical 2-way component.

Why Audio Creations Passive Network?

Anyone can build a crossover, seriously! However, it is the level of importance one place in building that really matters. The knowledge of how the transducer/driver will respond to different crossover points and crossover designs cannot be merely studied by reading but it has to be experienced.

A speaker is only as good as how it is being installed and the crossover being used. The crossover is the heart of any speakers. Speakers do not sound polished by themselves, they need to be controlled and guided to perform their best. A good speaker driver is like a good athlete – Just like a dancer or a gymnast require a coach to bring out the best in them. That is why we call them raw drivers.

Unlike home audio loudspeakers that have the enclosure to bring out the best of the drivers, the car environment is limited to doors, kick panels and pillars for mounting and placement. Thus, even the best install will leave much to be desired and countless hours of tweaking is required to bring the best out from the speaker drivers.

Isn’t using an electronic crossover an easier solution? Electronic crossovers are flexible and useful but the quality of sound and tonal character again leaves much to be desired, leaving the reproduction to sounding dry, clinical, thin and uninvolving. My partner actually calls it ”boring music”, which is exactly what it is. Equalizers will help in the aspect of fine tuning and tweaking but being electronic and limited to the quality available for car audio use, the more natural and analogue method still boils down to the use of custom crossovers like you see in any home audio loudspeakers.

Many available electronic equalizers are not useful/powerful enough in the first place. At Audio Creations, on top of using high-end capacitors and coils as NATURAL equalizers, we still use equalizers, but only analogue units. We use them for serious fine tuning and not a quick fix or a mask to problems. The major bottlenecks like the power supply and the passive network has to be addressed early on. Once solved, they make a  solid foundation of a good sounding kick-ass system.

At Audio Creations, we manufacture crossover networks using capacitors, inductors and resistors from highly regarded companies like Duelund (Denmark) and Mundorf (Germany), which we have tested and proven countless times to provide the best reproduction available from any high quality speaker drivers. We also use premium V-Caps (USA) in our applications.

Our custom crossover comes complete with high-end parts soldered with 4% silver solder or highly recommended Mundorf silver/gold solder, wired with Transparent Cable or highly recommended Van den Hul CS-122 and encased in a tasteful but simple enclosure (classy enclosures can be requested). We restrain from any form of connectors to avoid sound degradation and therefore prefer to hard wire all connections. We fully emphasize that cables from the amplifier and to the speakers from the passive network should be soldered and heat shrinked for a safe and sure connection. Five cents connectors should be avoided at the speaker ends.

Bring your speaker performance to a level that justifies the price you paid for them. Visit us and learn more about Audio Creations custom crossovers.