iFi Audio DC Blocker

iFi Audio DC Blocker

If you have a mechanical hum, deploy the DC Blocker

iFi Audio DC Blocker
iFi Audio DC Blocker
iFi Audio DC Blocker
iFi Audio DC Blocker
iFi Audio DC Blocker
129,00 Price include 21% VAT Price exclude VAT € 106,61
AVAILABILITY1 WEEK
Features
- Blocks incoming DC up to 1,200 mV
- Voltage rating 90 – 240 V
- Continuous current rating 7A
- Hospital-grade IEC C14 connectors
- Weight 63 g / 2.2 oz
- Dimensions 68x37x32 mm / 2.7x1.5x1.3 inch

Bye bye mechanical hummm
Many (large) amplifiers have a really annoying mechanical hum, emitted from the (toroidal) transformer itself. You can often hear it from meters away. This is, most of the time, caused by a small amount of DC offset voltage on the mains which makes its way through to the mains transformer. It will become ‘saturated’ and starts to hum like a trooper. The DC Blocker is a clever device that you place at the IEC (at the rear power inlet) and as its name implies, it stops DC from getting into the amplifier. It therefore eliminates amplifier transformer hum.

Note: All transformers hum (even new ones from the most reputable brands)! if you encounter a constant hum, chances are the DC blocker can't prevent this. The cause may be the transformer itself. In case you have a hum that varies in hum level (and sometimes is even completely absent) this device will help you out. Be aware that it can never "repair" a "bad" mains transformer. American transformers, designed to take a 60 Hz mains, will nearly always have a louder hum when connected to the European 50 Hz mains. The DC blocker will not reduce their hum, as their core tends to become saturated. If in doubt, please contact us before buying!!!