
Firebird - Source
Alternating Current (AC), is a far-from-perfect power source. AC power technology is well over a century old and was never designed to meet the exacting standards of today’s high resolution audio-video components. AC noise is present at the utility source, and is then exacerbated by radio frequency noise that is induced (picked up by the AC power cord) and coupled to the component power supplies and to circuit ground. This creates distortion and low-level signal losses via the “masking effect.” Most AC power cords and power conditioner-regenerators, though helpful to a point, are simply not up to the task.
Note: AudioQuest FireBird/Source AC power cable is not appropriate for use with AC power conditioners, power regenerators, AC isolation transformers, AC battery back-up devices, as well as any power amplifier, powered sub-woofer, powered loudspeaker, powered receiver, or integrated amplifier (whether tube, solid state or digital switching). These products will require greater RMS and transient current capacity. In extreme instances, they could suffer diminished performance and/or present an electrical danger by exceeding the AudioQuest Dragon/Source AC power cable’s maximum current capacity. For those applications, we highly recommend selecting the AudioQuest’s [b]FireBird/High-Current AC power cable[b].
Firebird - High Current
Alternating Current (AC), is a far-from-perfect power source. AC power technology is well over a century old and was never designed to meet the exacting standards of today’s high resolution audio-video components. AC noise is present at the utility source, and is then exacerbated by radio frequency noise that is induced (picked up by the AC power cord) and coupled to the component power supplies and to circuit ground. This creates distortion and low-level signal losses via the “masking effect.” Further, power amplifiers can require immense reserves of transient current for their power supplies to react to and then stabilize during dynamic audio passages. Most AC power cords and power conditioner-regenerators, though helpful to a point, are simply not up to the task.
Power amplifiers present a real challenge for any AC power source, as the transient current requirements (though short in duration) can be many times that of the average (RMS) current consumption. Power amplifiers are also unique from all other components in that the current draw is dynamic, not constant, and it changes with volume and audio signal content. Though many AC power cords may feature low DC resistance to allow for some of this requirement, the characteristic impedance of the AC cable is equally responsible for assuring uncompromised performance. Many premium AC cords constrict or compress the audio transient as their characteristic impedance restricts the transient current.