New horizons of attainable performance via the State-of-the-Art LessLoss Firewall module

Dear esteemed customers,

The LessLoss Firewall module is available to the DIY modifier for self installation. We provide this information to those who feel comfortable soldering on their own and in general have enough experience to deal with high voltages with confidence. The Firewall module is designed to withstand 1000VDC internally between the Lin and Nin leads.

Here are the dimensions of the Firewall board.



The board is configured symmetrically such that the input and output contacts can be stacked without the use of any leads.

The Firewall’s effectiveness is augmented not only through the use of multiple units, but through their mutual interaction through their surrounding electromagnetic fields as current flows through the boards. Thus, mutual proximity is an added benefit when using these Firewall boards in multiples. For this to hold true, the proper orientation amongst the boards is needed. This is described here.

Best results are obtained when multiple Firewall modules are ‘stacked’ according to these instructions. Using them in close proximity to one another in other configurations has been shown to reduce their overall effectiveness. Therefore, please follow these instructions and you can’t go wrong.



A ‘stack’ of an odd number of boards will result with the input contacts on the bottom right and the output contacts on the top left.

The wiring of such a stack is considered ‘series’ wiring. The Firewall modules are said to be ‘in series’ because the output contacts of one board are adjoined electrically to the input contacts of the next board.



The number of Firewall modules in a stack, wired in series, determines the overall silence of the noise floor. The more units wired in series, the quieter the noise floor becomes.









There is a place within the Firewall board’s traces where the total cross section of copper per power leg is reduced to 1mm^2. This section is about 20mm in length.



To increase the overall conductivity, Firewall module ‘stacks’ can themselves be wired in parallel. The number of parallel wired ‘stacks’ determines how low the resistance will be.

Two parallel wired stacks will have the minimum conductive region raised from 1mm^2 to 2mm^2 cross section. Three in parallel will have 3mm^2 cross section, and so forth. Thus, with regards to power conditioner construction using the Firewall modules, there are two parameters: the number of series wired units in a “stack” determines the quietness of the noise floor, and the number of parallel wired “stacks” determines the ultimate cleanliness of the most complex chord structure and symphonic tutti accents.

Through experimentation it has been established that best results are achieved when all parallel wired stacks each contain the same number of modules. Thus, if one has stacks of 5 FW modules, using three such stacks will result in a total usage of 15 modules, in three equal stacks of five.



There is no known limit to the effectiveness of the Firewall modules. We have done projects containing 44 units in four parallel stacks of 11 modules each, and others with three stacks of 20 Firewall modules each. Such performance is simply sublime and must be experienced to be believed. The natural flow of unobstructed time is re-created with a believability which rivals the very best analogue setups, even if the source is digital.



We can now offer you pre-manufactured stacks of Firewall modules for you to implement in your own projects. The Firewall modules can be purchased integrated into stacks of any number. Pictured here are three stacks of 20 modules each. This means that when connected in parallel, the three stacks offer a minimum cross sectional area of copper of 3mm^2. Dynamic performance is completely maintained but the filtering is massively effective. Focus is spot on, and no absolutely no coloration of the sound is perceived. The Firewall modules are 178 USD each. All labor, expendables, internal wiring, and shipping is included in this price. The leads are ready for your implementation. Write to us for your custom project quotation and get the best sound you have ever heard. We can provide you with ready-made stacks starting from 5X upwards.