Once again, thank you all for the warm and friendly welcome and good wishes. More replies
Hemant / Vivek - Nice to hear from satisfied customers and thanks for buying my products. I wonder which bookshelf models you are referring to as there were several early versions. Perhaps you should send me a photo to
[email protected] . Our last Pandam bookshelf was launched in 1999 and used a special version of the Peerless SKO-130 which was a 6 ohm 130mm bass driver and the Peerless 25mm SR-10DT soft dome tweeter. We actually tried to develop this vented 80 watt speaker system model in three phases. The first phase was to develop it as a simple high quality two-way passive speaker system with an on-axis flat frequency response from 50Hz to 20kHz. The second phase was to upgrade it with the Peerless 25mm aluminum dome tweeter newly developed at that time and seat it in a large waveguide to reduce edge diffraction and provide constant directivity. The third phase was to make the speaker bi-amp active. The first phase happened quite easily and was a massive success when launched in the local market. But we ran into huge technical difficulties developing the second and third phase, so they never did make it to production. But the learning experience made us respect the highly developed waveguide solutions Genelec was already using successfully, for addressing edge diffraction & constant directivity, and their special driver-specific negative impedance compact amplifier design, and their clever active crossovers allowing for all the necessary compensations. It turned out to be too complicated a project for our small little team with limited capability, to handle. We finally stopped all speaker manufacturing in 2007.
Vandal - and all who have kindly responded, please do not hesitate to visit my showroom whenever you can. I will be happy to help you with any advice you need. Do phone me in advance on +91 9867345336 to make sure I will be there when you visit.
Venkat - That's a lot of work to develop those kind of technical articles. I will try and work on them when I have the time and will let you know when I have put something together that's interesting and informative.
Subhash / Malvai - Glad to hear you think well of the active speaker concept. Over the years we have had mostly praises, but there have also been many critics who don't believe that a well designed active studio monitor can serve the purpose as a proper sound reproduction device fit for audiophiles and perfectionists. They have never been able to put up a convincing technical explanation why.
But then, you win some, you loose some.
