Very fast and no problems.Also answered a question for me.Great people to deal with.

Still burning in, but my sound has improved.It's a change that's hard to describe.I can't say it's added more bass or detail,just that things sound a bit closer to being perceived as real than before.Definitely something is going on.Vinyl and cd's both sound better now than they did and I thought things were pretty good before.So for me this has been a welcome addition.
Klipsch Cornwall 1v, bi-amped with--Schitt GHorn for bottom and a Martin logan depth sub
Coherent sound Frankenstein 300B monos for top
Coherent sound statement linestage
JC3+ phono
SME 10/V Benze lo4 mc
Bryston bcd3 as transport
Ps Audio direct stream dac mk11
All wireworld eclipse 8 cables
Room treatment
And of course the Snub station and the Line noise blackhole

I didn’t expect much with all my power conditioning but boy right out of the box these power components improved the SQ noticeably. Volume seemed to increase, dynamics improved and 3D sound stage expanded. Thanks for the great products and amazing value. Now that the LNBH and SSZ have had some nice break-in hours, moving my Mainstream and Snubway to my modem/router roon core room and upgrading the LNBH/SSZ power cords all I can say is WOW. My system has never sounded better. Separating my Power Amp, Preamp and DAC away from all my other electrical devices and having 2 power conditioning set ups has really improved things. As an added bonus with these two devices I no longer need my Stack Audio SmoothLan, EtherRegan and external clock. They just no longer add improvement. Nice to clean up the space and simplify.

I didn’t expect much with all my power conditioning but boy right out of the box these power components improved the SQ noticeably. Volume seemed to increase, dynamics improved and 3D sound stage expanded. Thanks for the great products and amazing value. Now that the LNBH and SSZ have had some nice break-in hours, moving my Mainstream and Snubway to my modem/router roon core room and upgrading the LNBH/SSZ power cords all I can say is WOW. My system has never sounded better. Separating my Power Amp, Preamp and DAC away from all my other electrical devices and having 2 power conditioning set ups has really improved things. As an added bonus with these two devices I no longer need my Stack Audio SmoothLan, EtherRegan and external clock. They just no longer add improvement. Nice to clean up the space and simplify.

Bardzo ciekawe urządzenie.Warto spróbować bo faktycznie działa.

I've had experiences with three different sluggo options, the high purity copper version, high purity copper with a gold immersion, and the graphene sluggo. The graphene sluggo was far and away my no. 1 choice; graphene is the best conductor of electricity that exists, and the graphene sluggo has been vapor-deposited with a microscopic layer of the compound. Graphene is actually just a single molecule of carbon, and though the microscopic layer deposited on the sluggo is infinitely thin, it still transmits current at a 70% higher rate than either of the two other options. The sluggo uses the proven concept of "skin effect," where the lion's share of the current travels across the surface of the sluggo. The graphene sluggo was absolutely superior to anything else I had access to, you can read my original review here:

https://positive-feedback.com/reviews/hardware-reviews/vera-fi-audio-swiss-digital-fuse-box/?highlight=graphene

These work as easily as hoped and sound as good also. Couldn't be happier with them.

Superb component at eliminating noise.

The Naiu Ella Stereo Amplifier is the only amp in my collection of gear that has an amperage rating higher than 10 amps -- that wouldn't allow me use the more flexible Infinity Fuse unit that's user-programmable. The Swiss Digital Fuse Box arrived in a black case as opposed to the usual silver case, which was a really good look! Hookup was easy, and I robbed the Core Power Piggy Tail from my analog system to hook the Naiu Ella to the SDFB. After it burned in for 24-or-so hours, I took an extended listen, and the SDFB in the system with the Ella amp now showed the same level of effortlessness and clarity I noted in my original experiences with it in my all-analog system. And my principal assessment of the SDFB remains consistent -- the Naiu Ella in the digital source system now plays with more control and limitless dynamics -- it's almost like a completely different, more powerful amplifier. Very highly recommended -- once you hear your system with the SDFB, there's no going back!

I liked it well enough to order and keep a second one.

I had some delays with the billing and shipping department during the summer holidays, but the products are undeniably effective: better musicality, more engaging.

A more cost-effective, user-programmable alternative to the Swiss Digital Fuse Box! And the dip switches allow the user to customize it for amperage and fuse type (slo-blow or fast acting) for compatibility with a variety of devices. You're not limited to a single device (as with the SDFB, which arrives pre-programmed for a specific fuse type and amperage rating), and that frees you to experiment with other equipment, easily helping you decide if you need additional Infinity Fuse units. The only thing necessary for you to do prior to placing your order is to confirm the fuse dimensions and choose the Sluggo (that replaces the fuse) or an upgraded version. And the Infinity Fuse will work with any device with a fuse rating up to 10 amps. Highly recommended -- I've tried it with tube amplifers, DACs, and preamplifiers, and the IF really gets you closer to the music!

I’m using my new subwoofer on a nice 2.1 system with some ELAC bookshelves. The ELACs sound great and the sub really rounds out the sound.

Super happy.

I am very pleased with this sub. I found a pair of AR8B speakers that I refoamed that ended up being very musical with a surprising soundstage but they lacked a bit of bass. This little sub turned out to be the perfect fit. I truely can't believe the sound I have coming from what has turned out to be a $240.00 investment for speakers and sub!! Could not be happier.

These are very musical subs for audiophiles at a fraction of the price than the competition. Vera-fi customer support (Mark Schifter) is top notch. I do not believe there is any subwoofer pair in the approximately 800 dollar price range that can beat these subs for your hifi system.