The Integration range is synonymous not only with ease of installation but also and most especially, with sound quality. This adjustment comes into its own when the speaker is placed low in the door. On this coaxial model, the aluminium/magnesium tweeter has a 2-position +3 dB adjuster (Flat/High) for treble boost. All this is with just one objective: to offer easy-fit products that maintain excellent sound. A new chassis has also been designed for optimal integration and a more elegant design. The new generation Universal comes with innovations and new features, including a new inverted aluminium/magnesium tweeter for even more detailed treble reproduction. Its compact size, achieved by reducing the housing depth, and its snap-off fixings make this kit easy to fit. Because tone is very much in the ears of the beholder, there are no real rights and wrongs here, and the values given here are starting points only.The ICU Universal 2-way coaxial speaker kit improves on your original-fit speaker installation. The actual components required for treble bleed circuitry are very inexpensive and easy to fit (assuming you count de-stringing and re-stringing a Strat as easy). Similarly, in option 3, a lower value of R will allow more treble to bleed through to the output than a higher value of R (for any given volume setting). So if there appears to be too much treble when the volume is rolled off, a smaller capacitor value will help (and vice versa). The larger the (bleed) capacitor value, the more it will transmit treble to the output for any given guitar set-up and volume control setting. In terms of component values, there are some simple principles to follow. The desire to preserve treble makes this a common option for humbucker pickups too. This can mean that lower volume settings may sound 'over bright' to some ears as the bass rolls off against a more constant treble signal content. Using the sort of capacitor values already quoted means that treble will be 'bled' to the output at almost all volume settings. Option 4 is most commonly associated with Telecaster guitars, where the extra bite and presence of the Tele Bridge pickup (with its field focussing plate), was very much something to be preserved. In fact resistor values of between 50-100% of the volume potentiometer value will suit most ears and provide a less pronounced treble bleed than the 'capacitor only' option 4. For example the Kinman treble bleed calls for a 130K Ohm resistor and 1.2nF capacitor. Option 3 uses similar values in a series configuration. Values in the 100K - 200K Ohm and 0.5 - 2 nF crop up on the internet. The Seymour Duncan site recommends this configuration for example, with a 100K Ohm resistor and 0.002mF (2nF) capacitor. Functionally, the capacitor provides the treble bypass and the resistor modifies the effective potentiometer resistance taper to get a good blend of control over both the treble bleed and overall volume. Of course, each of these options has its pros & cons, none are necessarily the best from all perspectives, and every individual will have their own ideas what sounds best for their style.Īs the commonest implementation (particularly on Stratocaster single coil pickup styles), option 2 is probably the best all rounder. The configuration options are summarised in the following diagrams (potentiometers shown as viewed from above). There are then several different variants and a range of values to consider, but the basic 'Capacitor Bypass' is always at the heart of things. They all rely on the same basic principle - providing an additional path to the guitars output that is 'friendly' to higher frequencies ( commonly called a capacitor!). Stating the obvious, the guitar treble bleed circuitry only come into play when the volume control is off the '10' position, so if you never venture below 10, this is not for you!Ī big advantage of active pickups and active circuits (see Ironstone's own Pre-Amp and Buffer Circuit) is that they can overcome this to a large degree, but its also possible to achieve a good solution with very low cost circuitry. So, as the volume is turned down, the guitars tone will therefore naturally tend to sound relatively more muddy and dull. Sadly, those nice high end frequencies (which a guitarist experiences as 'brightness & clarity), roll off faster as the volume is turned than lower frequencies. In simple terms, the effects of turning down a guitars volume control(s) is not linear for all frequencies. Along with opinions on what are the best type and value of tone capacitors and potentiometers to use (see Guitar Potentiometers & Capacitors), a very common set of questions Ironstone receives, concerns the use of treble bleed circuitry.
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