Vera-Fi Audio LLC
Sluggo - For Use with SDFB
Sluggo - For Use with SDFB
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Note: Shipping times for Swiss Digital Fuse Box can take 3 to 5 days.
When purchasing please select the Fuse Rating, Type and Sluggo of your choice. If your fuse rating is not listed, please select "Other" and send us a message with value using the contact form at checkout.
SDFB Price Update (November 1, 2024)
SDFB Price Update (November 1, 2024)
The Swiss Digital FUSE BOX has been an around-the-world massive success. We are all very grateful for the faith and trust you placed in us with SDFB and it’s ancillary products. Thank YOU!
Unfortunately, we must raise the price. On the 1st of November 2024. Costs are going through the roof, and we’ve done our best to not come to this point... but here we are:
- Swiss Digital Fuse Box from $395/unit to $495/unit
- Piggy Tail from $99 each to $125 ach
- Super Piggy Tail from $149 each to $175 each
- Extreme Piggy Tail from $199 each to $249 each
- Sluggos No Price Increase
- Swiss Digital Fuse Box Max from $450/unit to $595/unit
Product Description
Product Description
Warning!! This product is designed to be used with and requires a Swiss Digital Fuse Box for proper safety. Do not remove or replace a fuse with a Sluggo without having a Swiss Digital Fuse Box installed.
High end audio fuse manufactures use a variety of materials in the makeup of their fuses to add different elements to the sound. Similarly fine tuning the synergy of your system can be found with different Sluggo materials, with the benefit of much greater current capability and lower resistance than any audiophile fuse!
High Purity Brass - Some power cable manufacturers utilize high purity brass terminations or gold immersed brass, and matching like metals can create an incredible pairing.
High Purity Copper - Nothing but pure high purity copper in the conductor path for a natural sound
Super Sluggo (Standard) - High purity copper is immersed in high purity gold to add a bit more warmth than copper alone
Super-Duper Sluggo - Sluggo has been plated with Rhodium, our hardest plating that adds more of a sonically neutral aspect, leaning towards colder tonality.
Graphene Sluggo - Graphene is a super conductor with up to 70% greater conductivity than copper, offering the closest thing to no fuse at all! Ask us about a 20% discount to upgrade to Graphene for current Swiss Digital Fuse Box owners!
Warning!! This product is designed to be used with and requires a Swiss Digital Fuse Box for proper safety. Do not remove or replace a fuse with a Sluggo without having a Swiss Digital Fuse Box installed.

Swiss Digital Fuse Box Reviews on YouTube
SG Live Acoustics
Before & After Installing Swiss Digital Fuse Box | Sgliveacoustics $50,000 Hi-Fi Setup, Instrument
Articles about Swiss Digital Fuse Box
Positive Feedback
Tom Gibbs and Bruce Kinch awards SDFB with Graphene Sluggo for 2024 Writers' Choice Award
What's Best Forum
SDFB improves separation, detail and clean but not sterile, it is musical and super engaging says Mr. Miyagi from What's Best Forum
Head-Fi Forums
BShaw featured SDFB on Audiophile Grade Fuses threads on Head-Fi Forums
Positive Feedback
Providing a Path to Unrestrained System Performance
Stereo Times
This accented the intimacy and closeness of the performance and enhanced the sense of stereo as more natural.
HiFi Audio Guru
Follow-up: Vera-Fi Audio's Swiss Digital Fuse Box, Now with the Graphene Sluggo
Positive Feedback
Swiss Digital FUSE BOX a Better Link in the Chain
Audiogon Forums
Swiss Digital Fuse Box - "What headroom sounds like"
Frequently Asked Questions (FAQs)
What is the Swiss Digital Fuse Box (SDFB)?
The SDFB is a device designed to improve the performance of your audio equipment by eliminating the weakest link in every system, which is the Fuse. The Fuse degrades with time and actually imparts an Impedance in and of itself. The SDFB is MicroProcessor Controlled and uses a State-of-the-Art Hall Effect Sensor to PROTECT your equipment.
How does the SDFB enhance audio performance?
By replacing conventional fuses with a metal rod called Sluggo, the SDFB reduces resistance and allows for better current flow, leading to improved midrange and treble clarity, increased power handling, and a more defined soundstage. We can promise a more refined bottom end as well.
Is the SDFB compatible with all audio equipment?
The SDFB is designed to be compatible with a wide range of audio equipment. However, it's essential to verify compatibility with your specific devices before installation. Please contact us here. Fuse Box works with gear rated at 500mA to 12 amps, with either Fast or Slow Blow varieties.
How does the SDFB provide protection without a traditional fuse?
The SDFB utilizes a microprocessor coupled to our precision Hall Effect Sensor / and Relay to monitor power flow, automatically opening the circuit in case of anomalies, thus providing protection without the need for a traditional fuse.
Can the SDFB be used in European audio systems?
Yes, SDFB is available in three voltage configurations:
- 110v, 60Hz
- 220/240v, 50Hz
- 220/240v, 60Hz (rare but used in a few parts of the world)
For users in the EU or parts of Asia, we recommend the following setup to ensure optimal performance without the need for adapters:
- Input Connection: Use your existing power cord to connect the wall outlet (whether Schuko or 3-blade US plug, as used in some regions) to the input side of the SDFB.
- Output Connection: Consider using one of our NEMA 15-type Piggy Tail power cables to connect the output of the SDFB to the IEC input of your audio equipment.
This configuration has been successfully implemented by over 200 SDFB users in the EU, delivering safe and exceptional results.
By following this setup, you can seamlessly integrate the SDFB into your system, enhancing performance while maintaining safety and compatibility.
What is the role of the Piggy Tail power cable in the SDFB setup?
The Piggy Tail is a short power cable designed to connect the SDFB's output to your audio equipment's power input, ensuring a secure and efficient connection.
Does the SDFB require any special installation procedures?
Installation of the SDFB involves replacing the existing fuse with the provided solid copper rod and connecting the device using the appropriate power cables. It's recommended to follow the manufacturer's installation guidelines or consult a professional.
Where can I find Vera-Fi Audio warranty information?
You may find information about warranty here.
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The Graphene is a worthwhile upgrade from the copper or brass SLUGGOs. I've got 3 and will order 2 more. Highly recommended!
These Piggy Tails are Excellent. You might think adding them to your favorite Power Cords (I use Rick Schultz Emersion), will be a little of a downgrade but, you will be gaining a HUGE BOOST in performance because of the Sluggos passing on that Sweet Power to your Electronics.
A Win Win all the way.
I had ordered 2 SDFB for my Amps. Due to some confusion, I received the wrong ones. I checked back with Mark and, I was instructed not to use them and to send them back. Vera-Fi will ALWAYS make sure that, you are using the correct Spec items. They took care of me all the way.
The SDFB Really adds that extra layer of Life to my System. There is Excitement when every I listen.
Good Company… they deliver
Let me start out by saying I'm not an audiophile, just an old guy who had the chance to buy some decent speakers. I shopped around watched hours of YouTube evaluations and made my choice. These are very solid speakers that look good anywhere.
As I said, I'm not audiophile but these things blew me away with the room filling sound from a compact size. I also added the Bluetooth amps so I can put them in any room by just plugging them in.
I would recommend these to anyone looking for great sound at a great price.
Fantastic: Mark is the Boss
It took a while to get them, but it was definitely worth the wait. For the price, these were way better sounding than I was expecting. Beautiful heavy wood cabinets, excellent range, tone and quality construction. I don’t think you’d need to, but a nice addition that I purchased was the Vanguard Caldera 12 inch subwoofer. It certainly complimented the system well. I didn’t want to spend a fortune and these fit the bill perfectly.
The customer service response was outstanding and prompt. I haven’t seen this level of personal customer attention in a long time. Highly recommend.
I have mine for a week or so; I have more on order, including the Snubway. But just this one unit has made an impact for the positive, so I am hoping to build on this. It is outlet d, and depending on which outlet it is plugged into, the results can vary, depending on the outlet position in the room. I put my in the Garage by the 1st AC outlet n to the fuse box after reading on that would be a good place for one unit, and they were right, right away the TV Sound bar and the 3 subwoofers connect sounded more dynamic, and the sound was more natural and with more body, what surprised me was on the 2nd level where my Stereo is it made a positive impact there also, I went down and unplugged it and went up and listened again and there was a drop off in presence, body and weight to the music as well as lacking the detail, piano is what I used with a stand up bass, to keep it simple, all sound more real with the one unit plugged into the outlet by the fuse box, so one is staying when I get the others I will built from there and see the extra ones impact, Mark is going to send me a package that he feels will work best for my system, Mark been great even took the time to call me to answer some questions on his products and which would be best for my needs. So try different outlets, let the unit burn-in for a week or so, the only time it hurt the sound was when I put it in the outlet before the Core balanced line conditioner; those two did not play nice together at all, lost mid-bass and bass, sound was thin, but that was the only time, I will try a Snubway there when I receive it. A good product, give it a try.
Really good uplift in soundstage, tonality and dynamics! No doubt about it or placebo!
The sound feels more pure!
At around 300 hrs like clarified by mark , the effect becomes very obvious!
I will probably go one for amp and one for streamer .
Bravo!