Tower 4T4 (above) - NBDesigns newest floorstander - tuned to 25Hz

We had the prototypes at AXPONA - and they now use the same SB Acoustics 1” soft dome tweeter as our 6” models - it sounds even better now, in our opinion!

Old Guy Hifi - 2024 Speaker of the Year: MLTL-6

Tower 4 (above) - NBDesigns least expensive floorstander - tuned to 28Hz

We are planning to be at Capital Audiofest again this year - please stop by and listen!

We have completed a series crossover for the Sony SS-CS5; that sounds amazing. It costs ~$45-70 less to build than the parallel crossover, that has been our best seller! The manual has been updated - and if you purchased the previous version, but not yet built the crossover, email us and we can send the build information.

We are very happy to announce that you are now able to order assembled crossovers for all Neil Blanchard Designs speakers, and for the Sony SS-CS5 crossover! E-Zee’s Crossovers has “good/better/best” parts lists that are similar to our build manuals - all air core inductor coils, metalized film capacitors, and very low/non-inductive resistors.

If you want to build one of our mass loaded transmission line speakers, or upgrade your SS-CS5 speakers - but building the crossover was holding you back - then you have this option. Visit their website, and email them for a quote.

E-Zee’s Crossovers <elon@ezeescrossovers.com>

Our newest design - the Tower 4T4 build manual is now available for purchase! It is a slim floorstanding speaker - just 5.6” / 142mm wide - and it is tuned to 25Hz!

Old Guy Hifi – 2024 Speaker of the Year - [Starting at 120 seconds]

The [speakers] that kept me listening longer and engaged me, and just grabbed me by the scruff of the neck – and said “come with me, we’re going on a journey” - no kidding, long and deep into the night, and deep into the catalog – was the Neil Blanchard Designs MLTL-6 stand mount transmission line speakers. These are amazing!

Now, do not for one second discount these because it is a DIY project. You can buy just the plans. Neil will cut you on a CNC machine - Baltic birch, ready to go flat pack.

These are really well designed. The speaker components, which you source from Madisound – crossover components [and] so forth – this is extraordinarily designed. The crossover is of the highest quality components.

These things make remarkable bass! They make an amazing stereo image – just wonderful, detailed, smooth, never harsh, never fatiguing! They paired well with everything I plugged them into. They just did an absolutely outstanding job! I really liked them – and again, just because they are DIY doesn’t mean they are not good. They are really good!

Speaker of the Year goes to Neil Blanchard Designs MLTL-6 stand mount transmission line speakers!

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.

The MLTL-6 mass loaded transmission line speaker, built with Baltic birch.

Build the MLTL-6 Speakers

A mass loaded transmission line speaker with a 6” paper cone woofer - in room response is essentially flat to ~32Hz.

”…arguably the best speaker kit available” - Cheap Audio Man

Build It

Build the Tower 6 Speakers

A slim tower mass loaded transmission line speaker with a 6” paper cone woofer - in room response is essentially flat to ~25Hz.

Build It

Build the MLTL-4 Speakers

A mass loaded transmission line speaker with a 4” paper cone woofer - tuned to a fundamental frequency of ~30Hz.

Build It

Build the WB4 Speakers

A slim monitor / stand mount mass loaded transmission line speaker with a 4” paper cone wideband driver - tuned to a fundamental frequency of 40Hz.

Build It

Upgrade your Sony SS-CS5 Speakers

Make a good speaker great.

Make It

Upgrade your Elac BS41-BK Speakers

Make an excellent speaker even better.

Make It

Upgrade your Elac DB5.2 Speakers

Make a very fine speaker even better.

Make It

Upgrade your Emotiva B1+ Speakers

Take them to a higher level.

Make It