Firewall Robusto™: 7 hours left at Early Bird pricing. Act now!

Monday 02 November, 2026

Dear esteemed insiders,

A week ago we launched Firewall Robusto™, our new flagship DIY self-installable current conditioning module. The response has been remarkable - and the Early Bird launch period is nearly over.

Just 7 hours remain. After that, prices revert to normal: a set of four goes from 1076 USD back to full price. There will be no extension. Act now!

LessLoss Firewall Robusto

Check out the first User Review!

LessLoss Firewall Robusto

One of the first Firewall Robusto™ shipments has already generated a storm! Here's our first user review:

Poul Svensgaard:

Two Robusto DIY Firewalls were installed in my Merging NADAC 8 channel LAN DAC. Over the years, I have made improvements to this excellent DAC that I use to drive my active speaker setup.

The most important one was adding a high quality external Linear Power supply to replace the internal Switch Mode supply. This was later spiced up with LessLoss Hookup Wire, Large, for supplying the 12 V directly to the electronics, and a high quality gold plated copper power inlet for the chassis.

Yesterday, I decided to try to add two of the newly introduced Robusto Firewalls on the 12 Volt supply line as close to the electronics as possible. Right from the first note, I was sincerely blown away. I know LessLoss products well, and had high expectations, but these little devices hit me in a way I had never expected. It was all about music and the emotions that the musicians are trying to bring across.

I am a professional acoustician and hold a masters degree in electronics, and am by nature sceptical of such devices as power Firewalls, but these little devils really work amazingly well. I take pride in having a quite high level music system, and I have over the last 40 years spent many hours on building, testing and listening. I listen a lot to live music and know how instruments and voices sound.

With the Robustos in my system, I got a lot closer to the type of emotions that are experienced in a live concert.

If you have a bit of talent with a soldering iron - or know somebody who has, here is one of the best value for money upgrades that you, in my opinion, can get in today's music reproduction industry. No doubt, many more Robustos will flow into my speakers, my network switch, my master clock and more.

My warmest recommendations, and thanks to the LessLoss team for their commitment to get reproduced musical emotions into our homes.

LessLoss Firewall Robusto

Size and weight

Size is 35mm wide, 33mm tall, and 89mm long, plus copper bar extensions at the two ends.

Weight is 312 grams each.

LessLoss Firewall Robusto

Here is an image including some recognizable objects for a visual idea of its size and proportions:

LessLoss Firewall Robusto size comparison

How to use it

On our website, we have published dimensions and installation instructions for all three usage applications:

--> On power lines involving three units (Live, Neutral and Ground lines).

--> On loudspeaker signal lines involving 4 units (two lines, positive and negative, per channel).

--> On DC applications involving two units (positive and return lines).

LessLoss Firewall Robusto

How it fits in to our product line

This unit replaces our Firewall for Loudspeakers, dual version; and our Firewall for Loudspeakers, quad version. A set of four of our prior-art quad version was priced at 3200 USD. A set of four of Firewall Robusto™, at Early Bird price, is only 1076 USD! And the performance is way off the charts! This is true progress!

Early Bird special pricing!

We are now launching a time-limited 14-day Early Bird launch period in which you can get a good discount. The maximum discount offered is up to 21.5% off (when you order 4 or more units in a single order and shipment).

After the Early Bird offer ends, prices will revert to normal.

Take advantage of our Early Bird offer and get yourself a sonic upgrade you never thought remotely possible!

LessLoss Firewall Robusto

We look forward to serving you soon!

Best regards,
Louis Motek
---
LessLoss Audio