The Black Noise 2500 Mains Filter is a sophisticated filter that is designed to work with the high power demands of power amplifiers with out imposing any dynamic compression. It will also effectively protect against AC Line pollution such as AC Line voltage distortion, noise and harmonic spuria. This product also offers surge protection.
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Power Rating - 1100 watts AC Line Harmonics roll-off: -3dB at 1.4Khz, -6dB at 6.6Khz, -23dB at 10Khz, -44dB at 20Khz, -86dB at 100Khz, -150dB at 1Mhz, -100dB at 100Mhz.
Defends against voltage spikes, disruptive pulses, and surge events from 250V ac and up, with an activation delay of less than 25ns. This protection has been specifically designed to absorb up to 25,000 amps for pulse events between 8 and 20 micro seconds, or 640 amps up to 2ms between live and neutral, and also live and neutral and also between neutral/ground and live/ground.
Dimensions: 4" w by 1.6" h by 12.8" long Weight: 7.7 lbs
The 2500 model uses a fully passive mains filter divided into four progressive filtering cells on the neutral and live conductors, in addition to two progressive filtering cells on the ground line. Instead of a fuse, Black Noise uses a re-settable thermal switch capable of handling high turn-on surge current peaks generated by devices such as power amplifiers while at the same time protecting the filter from continuous loads exceeding its rated current The BLUE LED turns off when thermal protection kicks in.
All capacitors are double-metalized, "self-healing" polypropolyne.
Only high quality components such as toroidal inductors woven around ferro-magnetic synthesized cores, high stability power-handling resistors, and Teflon insulated shields.
Components are soldered to a vetronite PC motherboard which uses 70 micron tinned copper traces that are the equivalent of 2.5 square-mm of solid core wire.
The circuitry is encapsulated in an epissidic resin which exhibits exceptional thermal stability and mechanical integrity rendering the filter components insensitive to external vibration disturbances.
A 4mm thick extruded and anodized aluminum case, having been milled by CNC machines significantly limits external and internal EMI and RFI fields.
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