Fosi Audio DC Power Filter
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Fosi Audio DC Power Filter
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Shipping Information
We offer free worldwide shipping, except for certain regions such as Ukraine and Russia, where our services are currently unavailable.
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Customer Support
WhatsApp: +8613716612254
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FAQ’s
If you have any questions, please refer here: FAQs
Product details
- Noise suppression: Through the combination of filter capacitors and inductors, the power filter effectively suppresses conducted and radiated interference, reducing the impact of electromagnetic interference on devices.
- Power purification: Filters out high-frequency noise and harmonics from the power supply, providing a stable and clean power signal, and enhancing the performance of audio and video equipment.
- Device protection: Reduces the impact of power surges and spikes on devices, extending their lifespan.The
The DC filter not suitable for BOX X5
FAQs
Please read our FAQs page to find out more.
How to: Choose the right banana plug?
- Closed Screw Type. All Fosi amplifiers use standard-sized speaker terminals (4mm pins).
- Easy to wire up and solidly connect to amplifier and passive speaker.
- If they do not fit, use a little force to tighten the plugs.
- Fosi Audio Banana Plugs (Copper, Silver/Gold Plated): http://bit.ly/40Djq0U, https://bit.ly/3MkPL8t
- Please watch tutorial videos: https://youtu.be/6pYhoqDlvNw / https://youtu.be/RGvBgGAwS9k
How to Diagnose Power Supply Failure?
- The following situations may cause this issue
- Case 1: The LED on the power supply does not light up; Case 2: Amp/Preamp does not turn on; Case 3: When plugged into the Amp, both light on the amp & power supply start blinking; Case 4: Amp/Preamp make noise; Case 5: Sound shuts off by itself
- Possible solution
- Check if the power supply is illuminated when plugged into AC by itself.
Plug power supply into a different socket.
Test the adapter with a meter.
Try a different power supply (within a range of DC input).
Test the included power supply on other electrical equipment.
Please watch the tutorial video by clicking on the link provided. https://youtu.be/yCjygS03zTE
What are the differences in power outputs using the 32V and 48V power supplies?
- Using a more powerful power supply can help prevent distortion.
- Enables amplifier to drive larger, more powerful, or higher-impedance speakers.
What is a GaN?
- The GaN supply has a power output of 240W.
- Offers overload and over-temperature protection.
- The 48V 5A GaN power supply is also available on Amazon.
Buying directly to Fosi Audio is hassle-free and quick. Tracking the order is available and the package arrived on time and well packed.
The DC power fIlter functions properly and it sensibly improved my tube amp performance, especially on trebles and soundstage.
I thought it will have a smaller print, but the quality construction is top notch, however it does not occupy much space.
I certainly will buy more Fosi Audio products in the near future.
Thank you
Periodically, I used to experience a light buzzing sound with my xduoo xd05 pro when using my linear power supply. I don’t have no clue why it emits but when I physically touch it with my finger, it goes away. Well I don’t have time for that. I bought this and no buzz whatsoever. In fact, it sounds clearer and much better. Not sure if it’s placebo but I don’t think so. Buy it!!!!
I use it with ZA3. I measured what effect this product has. The second photo is without it, the noise is 180mVpp. The first photo is with it, the noise went down to 80mVpp.
In my environment, I was able to reduce noise by more than half. I think this is a very cost-effective product.
Used this on a Douk A5 with 32V power supply. There was some low level high pitched noise coming through my speakers with the amp at maximum gain, this filter cleaned it up completely.
I have several Fosi amps and they are all nice and quiet as-is, so Fosi’s supplies must be better.
I still get tons of EMI/RFI interference from my Fosi amp.