Vera-Fi Audio LLC
Swiss Digital Fuse Box
Swiss Digital Fuse Box
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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
To fully understand the potential benefits of Swiss Digital Fuse Box, we must first examine the pitfalls of the fuse.
A fuse is a simple, sacrificial device used to protect your component in case of electrical failure. When current is being drawn through the fuse, it begins to heat up, and in cases of excess current or short, it will melt and sever the connection to power. While this works to protect your devices, a common fuse leaves much to be desired in means of performance when it comes to our audio components.
Regardless of the size of the power cable feeding even your largest amplifiers, the live line feeding the power supply eventually becomes constricted to the single small filament housed in the fuse. Current draw through the filament causes heat, which in turn raises the resistance and limits the capability of the power supply as it digs deep to replenish its reserves in times of high demand and musical transients.
Our elegant solution is the Swiss Digital Fuse Box. After carefully reading the instructions, the restrictive fuse is replaced with a Sluggo, a very low resistance and high current capable metal rod made from high purity materials. Run a power cable from the wall to the Swiss Digital Fuse Box IEC C13 inlet, and then plug your component into the Fuse Box’s NEMA 15 receptacle and you are ready to experience what the Fuse Box has to offer.
Each Fuse Box is programmed at the time of ordering to match the manufacturer’s fuse specification for your device. An internal microcontroller magnetically monitors the current draw and opens the circuit via a low resistance relay if it exceeds the pre-programmed setting. Resetting the Swiss Digital Fuse Box if tripped is done simply by disconnecting it from the wall for a minimum of 15 seconds. Fuse Box will not lose its programming ever, and will continue to protect your device faithfully and without fault.
Please Note: We can program Swiss Digital Fuse Box for the voltage and frequency of your country, but all Fuse Boxes have a US style plug output and will require the appropriate power cable. Please see our Piggy Tail power cables if you need a short length cable for this purpose.
Sluggo
Sluggo is precision manufactured in the size of your typical 5x20mm or 6x32mm fuse, made out of your choice of high purity materials. All the sonic benefits of an audiophile fuse without the worry of an expensive failure. One Sluggo in either high purity brass, copper, or gold immersion (Super Sluggo) included with the purchase of the Swiss Digital Fuse Box. Additional Sluggo are available here.
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. This is our base model Sluggo.
High Purity Copper - Nothing but pure high purity copper in the conductor path providing all the benefits of Sluggo without imparting anything to the sound.
Super Sluggo - All of the benefits of high purity copper immersed in gold for greater warmth and immediacy. This is our standard and recommended Sluggo for starting out with Swiss Digital Fuse Box.
Super-Duper Sluggo - A tellurium copper Sluggo has been plated with Rhodium, our hardest plating that adds more of a sonically neutral aspect, leaning towards colder tonality to help fine tune your system
Graphene Sluggo - Graphene is a super conductor with up to 70% greater conductivity than copper, offering the closest thing to no fuse at all! Our TOL and highest recommended Sluggo. Ask us about a 20% discount to upgrade to Graphene for current Swiss Digital Fuse Box owners!
Piggy Tails
Swiss Digital Fuse Box has an IEC C13 inlet, and a NEMA 15 outlet on the other side. This allows you to use your performance power cable of choice to feed the Fuse Box, and still allows you to enjoy the benefits if you have an integral power cable on your audio component.
Our Piggy Tails are high performance, short interconnecting power cables for use with Swiss Digital Fuse Box or other high current power delivery products only requiring a short distance.
Piggy Tail - Our base model is a 1ft power cable constructed from 9 separate cores of 16-gauge 8N oxygen-free copper, each plated with 70 microns of extruded pure silver. Designed for ultra-low resistance and uncompromised signal integrity, this cable ensures your system benefits from stable, noise-free power without unnecessary bulk.
Super Piggy Tail - Stepping up from the base model, the Super Piggy Tail refines and expands upon its predecessor with even greater efficiency. Built with 3 cores conductor shaft with built-in oversized high-purity silver-plated oxygen-free high thermal conductivity (OFHC) square core copper + multi-strand pure copper, it delivers lower resistance, improved current flow, and even better shielding against electrical interference. Ideal for systems demanding more refined dynamics and an even lower noise floor.
Extreme Piggy Tail - For those who demand the absolute best, the Extreme Piggy Tail takes performance to another level. Available in 1ft and 2ft lengths, it doubles the number of silver-plated oxygen-free copper cores for even lower resistance and superior current capability. The result? Tighter bass, improved transient response, and effortless power delivery to high-current components.
Try the Swiss Digital Fuse Box for yourself in your own home. All products sold by Vera-Fi Audio are covered by a 30 day money back guarantee should you be dissatisfied in any way.
Watch this video to learn more!
Customer Reviews
I’m very impressed with the SDFB. I’ve used many high-end fuses before, but most tend to alter the tonality, introduce noticeable midrange distortion, and result in bloated, loose bass. In contrast, the SDFB preserves the original tonality while significantly improving bass performance—offering greater detail, tighter control, and a clear reduction in distortion across the entire spectrum. The soundstage also expands substantially.
I briefly compared it directly with a fuse-less setup and can confirm that while there’s a slight reduction in body and bloom, the SDFB is the closest I’ve heard to running without a fuse.
Killer combination with SDFB
As a late-comer to the fuse-upgrade culture, I'm glad that I finally stepped into the realm of SDFBs. I currently use a pair of Dutch and Dutch 8Cs sourced by Grimm Audio Mu2 as reference. I replaced all three fuses with SDFB and Graphene Sluggos. On my 8Cs, not only it opened up the soundstage, it did so without any sacrifice, the soundstage is more defined and the presentation is embodied with better clarity and even better focused - large orchestral passages become more layered, the tonality more visceral and congested sections more relaxed without sounding "loose". The additional graphene added to my Grimm Mu2 tightened the overall focus even more and further enhanced the overall realism of my system. This upgrade to me is fundamental and astounding. It ranked among the best upgrades that I'd ever experienced!
The single most effective "tweak"
Amazing, pretty much sums it up. Everything I’ve read about the SDFB, I found to me true in my 300 b amp.
This is my 9th SDFB! I obviously like them!
In my case, it's a necessary accessory to connect the SDFB to my CD player.
The result has been very good.
Rafael (BCN-Spain)
Creative thinking lead to the creation of this product which is an excellent addition.
Great value at such a low price. Dynamic, quiet with great bass. Works well with the SDFB.
Having ordered and installed two of these in the past, one on my Lampizator DAC and the other on my PrimaLuna Evo 400 preamp, I was smitten as these devices made perhaps the largest difference in sound quality for the smallest expenditure I had ever made. So, two more were ordered for my tube mono block amps, they arrived, I installed and both popped as soon as the power was turned on. I contacted Mark and we both agreed that the inrush was too great for the delay so he graciouslly agreed to send me two more with an extended delay to fix the issue. As much as I’d like to say the second set worked perfectly they failed in the same way only it took a little longer. I once again contacted Mark and he then had his engineer get hold of me and we solved the problem by simply doing an amp draw at start up. The new units were designed to work with my amps start up draw and they worked perfectly. My thanks to Mark and his crew for taking the time and having the patience in dealing with this frustrating issue. Now, what have they done for the amps, all I can say is they have an extended range, I am hearing more music, there is a clarity that just wasn’t there before and I find myself listening far more than before. Very pleased with the purchase and very pleased with the company.
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"
Customer Reviews
I’m very impressed with the SDFB. I’ve used many high-end fuses before, but most tend to alter the tonality, introduce noticeable midrange distortion, and result in bloated, loose bass. In contrast, the SDFB preserves the original tonality while significantly improving bass performance—offering greater detail, tighter control, and a clear reduction in distortion across the entire spectrum. The soundstage also expands substantially.
I briefly compared it directly with a fuse-less setup and can confirm that while there’s a slight reduction in body and bloom, the SDFB is the closest I’ve heard to running without a fuse.
Killer combination with SDFB
As a late-comer to the fuse-upgrade culture, I'm glad that I finally stepped into the realm of SDFBs. I currently use a pair of Dutch and Dutch 8Cs sourced by Grimm Audio Mu2 as reference. I replaced all three fuses with SDFB and Graphene Sluggos. On my 8Cs, not only it opened up the soundstage, it did so without any sacrifice, the soundstage is more defined and the presentation is embodied with better clarity and even better focused - large orchestral passages become more layered, the tonality more visceral and congested sections more relaxed without sounding "loose". The additional graphene added to my Grimm Mu2 tightened the overall focus even more and further enhanced the overall realism of my system. This upgrade to me is fundamental and astounding. It ranked among the best upgrades that I'd ever experienced!
The single most effective "tweak"
Amazing, pretty much sums it up. Everything I’ve read about the SDFB, I found to me true in my 300 b amp.
This is my 9th SDFB! I obviously like them!
In my case, it's a necessary accessory to connect the SDFB to my CD player.
The result has been very good.
Rafael (BCN-Spain)
Creative thinking lead to the creation of this product which is an excellent addition.
Great value at such a low price. Dynamic, quiet with great bass. Works well with the SDFB.
Having ordered and installed two of these in the past, one on my Lampizator DAC and the other on my PrimaLuna Evo 400 preamp, I was smitten as these devices made perhaps the largest difference in sound quality for the smallest expenditure I had ever made. So, two more were ordered for my tube mono block amps, they arrived, I installed and both popped as soon as the power was turned on. I contacted Mark and we both agreed that the inrush was too great for the delay so he graciouslly agreed to send me two more with an extended delay to fix the issue. As much as I’d like to say the second set worked perfectly they failed in the same way only it took a little longer. I once again contacted Mark and he then had his engineer get hold of me and we solved the problem by simply doing an amp draw at start up. The new units were designed to work with my amps start up draw and they worked perfectly. My thanks to Mark and his crew for taking the time and having the patience in dealing with this frustrating issue. Now, what have they done for the amps, all I can say is they have an extended range, I am hearing more music, there is a clarity that just wasn’t there before and I find myself listening far more than before. Very pleased with the purchase and very pleased with the company.
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