Our Audio Cables and Why You Need Them
RSX™ will eventually offer a full range of “New Best in the World” cables for every application and at every price point. For the present, however, we’ve chosen to introduce our company with just two types of products: phono cables and AC power cords.
Those two cables support what are arguably the two most crucial points in your system: those that carry, respectively, the very least and the very most voltage and current. The very least, to realistically render the touch of a single triangle, or tiny but critical ambient details like the music’s fifth bounce off the walls of the hall it was performed in; the very most, to power your system to reproduce even the crashing impact of a full orchestral tutti or the gut-thumping dynamic slam of a rock ‘n’ roll kick-drum.
RSX Phono Cables
A Fraction of a Millivolt
Phono cartridges can have outputs as little as just a fraction of a millivolt, and yet must be able to convey all of what’s in the vinyl groove to the listener without loss, distortion, the addition of spurious signal artifacts or noise from environmental RFI/ EMI.
Cartridge performance is also strongly influenced by loading factors, both as provided as options by the phono preamp and as capacitive and inductive reactance inherent to the design of the phono cable making the connection. That’s why having a phono cable that will carry signal as nearly unchanged as possible is an absolute essential for your maximum listening enjoyment, and that’s why RSX offers phono cables at three different performance levels and price points.
RSX AC Power Cords
Good Power Cords are Essential
Except for battery-powered equipment, every single bit of what you eventually hear coming out of your speakers must first have come out of the wall and been carried to your system by an AC power cord. This applies to all of your electronics, whether tube or solid-state, and, unless the delivery curve of your power cables (the amount of power they carry from the wall sockets to your equipment at any given instant) is sufficient to match the demand curve of your system (the amount of power required to replenish its power-supply sections at any given instant as it produces signal to drive your speakers) the sound will be “slow”, dynamically-“cramped”, and missing low-level and transient detail.
Why Some are Better Than Others
This is not so much a matter of brute power-handling capability — virtually any power cord of sufficient gauge will carry more power than is ever likely to be needed for musical listening. Instead, one major issue is “rise time”; the ability to pass power as quickly as it is needed, so that the amplitude curve (how much power is passed) at the wall is exactly and temporally analogous to the power curve (the changing output level) to the speakers. That’s why, years ago, some people thought that good speaker cables might also make good AC power cables. However, another important factor, noise, finally ruled speaker cables out for serious power line usage. Whether internally generated, as by capacitive discharge effects, or from external sources of RFI and EMI, noise can, both by its audible presence and by its potential for creating distortion, reduce system performance. That’s where the other major issue comes in: shielding.
Why RSX Power Cords are Best
All RSX AC Power Cords are fully “Faraday Cage” shielded to keep out external noise and to keep their own internally- generated electromagnetic field (one is formed wherever there is electrical current flow) from affecting the rest of your system. Always remember that AC power cables are cables, and that, like all other cables, they have resistance, capacitance, and inductance — three factors that can and do affect sonic performance. All RSX AC Power Cords are designed from a new understanding of how all pertinent factors integrate to affect the sound you hear and to maximize it for your ultimate enjoyment. Models are available at three different performance levels and price points.