If you are interested in more information, have a suggestion or need an amplifier printed circuit board, you are welcome to contact me.
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2023 Mini loudspeaker all black The same as model 2020 except that new PCB's are being used. No connectors exist on the back side anymore. The cables are directly fed into the standard. Also the stand is different. |
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Redesign 2023. The speaker, designed together with my daughter in 2011 (see below), Frequency response measured at 3m in a living room: |
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Banana speakers 2022 The speaker cabinet design is not mine. A running buddy of mine had the cabinets without speakers in his garage for 20 years. He had seen this design once and had it copied by a carpenter. It takes real craftsmanship to make this shape! Because the walls of the cabinet are never parallel, it will be difficult for resonance to occur in the cabinet. That's a big advantage. He asked me to install speakers in it. Coincidentally, the broadband Tymphany ring radiator tweeter turned out to fit exactly in the existing tweeter hole. For the woofer I found the very nice Dayton RS225-4 8" Reference Woofer, also fitting exactly. First of all, the inner walls were reinforced with partitions to reduce vibrations. The design of the electronics, including PCB, is mine. An active amplifier is built in. That is to say, a balanced input amplifier, an electronic 18 db/oct crossover at 800 Hz, two separate power amplifiers, an active bass correction filter (the cabinet does not have a bass reflex port) so that the woofer goes straight down to 20 Hz and a circuit (“audio switch”) that automatically takes the amplifier out of standby when music is started. The power indication LED (green/red, power/standby) shines on the floor by chance and that gives an unexpected nice effect. The result is a uniquely shaped loudspeaker with high-end sound characteristics.
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Mini loudspeaker 2020. Of course, they can not match the large array speakers. But the challenge here was to built a very small, good looking but still good loudspeaker. Frequency response measured at 3m in a living room:
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Model 2018. A line array speaker with built-in amplifiers. The listening room is an important factor for listening to music. Dimensions: 120 x 26 x 11 cm Documentation can be found here. DFX drawings acrylic panels:
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Model 2017. A speaker with built-in amplifiers. Dimensions: 128 x 30. Depths: 8 and 20 cm Documentation can be found here. Measured in living room at 3 m distance: |
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Model 2014. Designed for a puppet show. Just very cheap speakers, but due to the line array gives an excellent performance for voices. |
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Model 2007. A three-way active speaker. Dimensions: 60 x 22.5. Depth: 26.5 cm Measured in living room at 3 m distance: |
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Model 2011. For people that are hearing impaired.
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Model 2009. A speaker with built-in amplifiers. I have a set of empty cabinets in the garage I want to get rid off. When I was about 17 years old, I heard the Quad ESL 57 for the first time and from that time on I was fascinated by electrostatic speakers.
I can recommend a visit to: |
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Model 1990. A passive three-way speaker. I probably build another 8 speakers before this model. |