Audiolab DC Block Direct Current Blocker Mains Conditioner (Black)

Product Information

Audiolab presents its new reference series: The 9000A integrated amplifier and the 9000CDT CD transport aim to impress with new technology and a large display, among other things. Would such a circuit affect ambient noise in your room? - absolutely not, unless your transformer is humming and you can hear it! A DC filter would stop that, for sure. And in even shorter summary - that’s why I’ll be inclined to try one in my system to see if it can help improve performance.

Not to worry though, I’m not selling it and it’s probably not for tabletop speakers. But proven principle of physics isn’t snake oil and the principle of removing DC from an AC power supply is known to affect audio equipment and I suppose that’s all I’m trying to clarify. The new power conditioning accessory "Sparkz TC3" from Ansuz Acoustics is designed to reduce noise in the power supply chain thanks to various technologies, and thus improve the sound of hi-fi components.Calling it a "power strip" would not do it justice. According to the manufacturer, Chord Company's Master M6 and Studio S6 power distribution units, called PowerHAUS, can do much more than ordinary or even high-quality power strips. Wiring, PCB design often are far from optimal. But lets face it. Only very few people are really bothered by ground loops and they all can be solved by finding the loop(s) and breaking it/them. Admittedly, it's quite a basic circuit to filter it and I've obviously never auditioned this audiolab unit but if your transformer is affected by DC, which it almost certainly will be if you have a fridge, washing machine and dish washer on your home mains, and if this circuit is correct (which I'm sure it would be), it's not snake oil to suggest that it would work. It's physics. I’m replying out of courtesy to explain with rationality and fact, rather than try and convince. I think a lot of people would also make the same assumption so please don’t take offence but I think youre missing the point of a DC filter and what it actually (not supposedly) does.

You don’t ‘hear’ DC - there is no audible noise, like static or white noise. Maybe you’ll hear the transform hum a little bit that’s a vibration that you’re hearing, caused by DC. Will it audibly affect your particular speakers? I am not saying, so at all. But it’s easy to test. Second, it reduces the potential problem of popping or thumping when you turn on the power amp. If nothing is coming out of your preamp or other upstream device, such pops won't be too bad, but if said upsteam device has a DC offset, big pop/thump. However, DC on the mains will definitely affect a transformers performance and it will, in many cases cause a transformer to hum or vibrate. A real phenomenon and a real factor in the ability of a transformer to operate to optimum capability - which is important in audio systems. The Power Box RS2 Phono promises high-purity "linear" power supply for Pro-Ject turntables and phono preamps at the same time.A quite cheap and not very sophisticated filter design, offering a substandard DC-filtration, unless the reqtifier bridge is not spec'd with higher forward voltage diodes. The decoupling is very rrudimentory as well and will do some good, but since no resistor loads are implemented it will not cancel possible resonances. Many many years ago. I replaced my cheap bell wire with a QED79 cable. Connected it up to my Pioneer SA608 and Kef Celeste III speakers. Didn't hear a difference.

The device is designed for use with a single audio or AV system component. Audiolab recommends that it should be used with the integrated amp or power amp component within your system to obtain the most significant benefit.

Gallery

The science absolutely guarantees that removing DC improves a transformers ability to do its job, and therefore it is very likely to make an audible difference in audio equipment. I bet your speakers were designed on a clean mains supply, for sure.