Speaker Asylum

General speaker questions for audio and home theater.

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RE: Bass alignment filter for B&W speakers

Posted by seancuster71@gmail.com on April 2, 2025 at 21:41:48:
Because 3 months ago he was asking questions about passive crossovers in his own speakers his knowledge was very limited, and he did not know the difference between a resistor and a rheostat was. And you do not go from not knowing the very basics of a passive crossover to designing a active filter for bass management in three months.

Add that to the fact the only schematic on the web is the factory B&W schematic that is used for all B&W 800 series speakers.

Coupled with the fact he knows about modified crossovers for his speaker that are very popular, but he wanted to keep his stock factory crossovers so why would he want a bass alignment filter that differed from the one that originally came with the speaker from the factory. And he has previously said he wants to keep them stock from the factory.

And the builder of the filter saved money buy not separating the power supply from the actual filter like the designers at B&W did to keep stray electromagnetic fields from causing noise in the active circuit.

Fact is anyone that can solider can build it. Hahax can you solider and can you read and follow a schematic I am sure you can so that means you can build it or anyone that can read and solider can build it that is the easy part. The design is the hard part, and he will not answer what alignment he used Bessel or Butterworth, and he will not answer what frequency's he is filtering which is funny because the answer is in the B&W description of the active filter. Answer is frequencies under 20 HZ due to the fact it is a "subsonic filter" and subsonic filters, filter frequencies under 20 HZ.