Modular-BD (BD-Design)

by GC, Monday, July 04, 2005, 21:21 (6870 days ago) @ GC

Hello Bert,

Yes, the panels are 26 mm thick solid beech, it is sold in plates of 250x61 cm which was just large enough for two fronts. This wood is heavy and strong and it is relatively easy to shape and polish if you have sharp tools.

Yesterday I made a test that I had in mind already before buying the BD-15s. Since my Fostex 208S has a sensitivity of 96.5 dB and the BD-15 has 99 dB, but is 16 Ohm, I thought that they might work well using only my Audio Note Kit one and a series inductor with the BD-15. To my surprise the BD-15 was almost inaudible even with my ear almost pressed to its cone. I caNot explain this very low bass output, did I make some mistake here?

One of the reasons to do this test was also because I have a small hum in my tube amp which is amplified by the bass amps making it just audible at the listening position. So I will have to look into my amplifier again to solve the hum problem. It is already there when all other equipment is disconnected and the inputs are shorted. Its sound is quite sharp, if anybody has any suggestions, please let me know. I already tried what I could with cables and grounding, this made no difference at all.

About breaking in, after just over one week they already sound a lot better than the first evening. I would have guessed that this should take much longer. They now deliver lots of details that I never heard with the Etons, not only in the deep bass but even more in the cross-over region with the Fostex. So despite the hum problem I am very happy with my new speakers.

Yours,
Eddie

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