We are very happy to announce that the Super Tower build manual is now available! The Satori midwoofer driver is now available at Madisound - and the Flat Pack will be available very soon - we thank you for your patience!
Stereophile posted an article on our room at T.H.E. New York audio show. (click on image for link)
Tower 4T4 (outside pair) and the Super Tower (prototypes are the inside pair). We are refining the crossover for the Super Tower, and it will be published after listening and testing.
Tower 4T4 (above) - NBDesigns MTM floorstander - tuned to 25Hz
Old Guy Hifi - 2024 Speaker of the Year: MLTL-6
Tower 4 (above) - NBDesigns least expensive floorstander - tuned to 28Hz
We are also very happy to announce that Sound Solver is now making stands for the MLTL-6, the MLTL-4, & WB4 speakers! Please see their webpage https://sound-solver.com/ to see their other racks and stands - please contact them if you are interested. And keep an eye out for a webpage about stands for our speakers.
We have measured the in-room sensitivity of all our speakers!
These are all measured @ 2.83V @ 1 Meter on axis, C-weighted with white noise, using a calibrated mic (UMIK-1) and REW. The key thing to know is these are in-room - so there is room boost - which is where we listen to music, of course!
For reference, we also measured the Sony SS-CS5M2 speaker - we measured 92dB SPL, in the exact same set up as our speakers. Erin’s Audio Corner measured this newest gen version at about the same sensitivity as the original of ~85-86dB - room lift is about +6dB.
A customer, Eamonn - sent me this photo of the Tower 6 speaker he built, and this is what he wrote:
"I wanted to update you on my speaker build for what it's worth. I finished the project about three months ago, which gives ample time to get used to the sound bedding in etc. I built with Baltic Birch plywood and the best available crossover components (otherwise what's the point?). Design and finish were kept as simple as possible.
I am extremely impressed with the sound I am now getting and I heartily congratulate you on your meticulous work. Bass is so good that I am still playing around with the subwoofer or no subwoofer question. Mids and highs also great with incredible, accurate central focus .
Thanks again for the pleasure."
Our first speakers - the MLTL-6 built with our Baltic birch flat pack, with the edges chamfered after the cabinet is built; which neatly conceals the glued seams within the laminations.
MLTL-6 Dipole tweeter & Dome tweeter versions
Mass Loaded Transmission Line Loudspeakers
Build Manual Available Now & Baltic birch flat packs are also available, for several models.

