Loudspeakers

A very small (1.3 litres) full range, built like a battleship (18 mm MDF) and used as PC speaker.

Closed box using a Monacor SP-45 driver. The driver was changed to the much better Vifa NE95W-04 (which has TS-parameters suitable for this enclosure) in 2014. Now acts as speaker set in my office.

 

Seas 2-way; great 11 cm miniwoofer!

Design MS Micro from the German company Intertechnik

 

Fostex drivers, bought in Hamamatsu, Japan. This particular model was introduced in 2000 in Japan and apparently never available in Europe.

 

Back-loaded horn with the Fostex FE103 Memorial drivers.

Design is the recommended horn from Fostex. It is incredible how much music is coming out of these tiny speakers!

 

Active subwoofer project from 2005. The amplifier is a Thommessen Proteus SW0.8 (now discontinued), a TDA7294-based chip amp.

Driver is the Peerless XLS10 car woofer.

Enclosure (in 25 mm MDF!) was calculated using WinISD.

Another full range speaker (colour chosen by my mother). The design is the "Cheap Trick" CT193 from the German magazine Klang & Ton.

I bought the components (except the wood) from the German mail order company Strassacker (very good service!).

The speaker is the well known (by those who know it well) Monacor SPH-60x.

Small bookshelf speakers (8 litres bass reflex) using the Jordan JX92S full range driver: great!



This is a 40l closed box, in 18 mm MDF. It uses the Visaton full-range BG20 and a Fostex FT17H horn super tweeter. I bought in the Fostex tweeter in Yodobashi, Akihabara area in Tokyo; this is probably one of the largest electronics stores in the world. The filter (shown below) is my own design (the BG20 speaker is modelled with its coil inductance to get a more decent simulation in the crossover regaion).

 filter

The BG20, here in our garden.

Celestion guitar speaker

Very simple guitar speaker box, using an impressive Celestion 'monster of rock' G12K-100 speaker driver. This is defintely not supposed to be run at full power at home!



Project, finished March 2016: Seas (from Norway) Idunn. Probably the best sounding speakers I have ever made.