Heed Q-FLT

The Q-FLT is a DC blocking mains voltage filter, designed to greatly reduce the effects of a noisy, polluted and DC-shifted mains voltage which can cause inconvenient problems in audio systems.

The audible mechanical hum of the toroidal transformers – used in most audio devices – is a common problem nowadays. The fluctuating noise that comes and goes is mostly caused by the DC component of the mains network, which is the result of many high-demand electric consumers we use in our households.

The Q-FLT can filter out this DC component of the mains voltage, eliminating the fluctuating transformer noise. Moreover, it has a filter section that greatly reduces other disturbances caused by switching or phase-splitting power supplies (LED drivers, hairdryers, coffee machines, etc.).

– DC voltage blocking up to 1.3 V

– 6 A current capability at any mains voltage

– common mode filter effective at and above audible frequencies

– IEC inlet and outlet with switch