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In Reply to: RE: Great speakers! posted by morricab on August 26, 2015 at 07:33:54:
Actually, many Acoustats have a crossover used in exactly the same way as is the one used in the full-range Sound Lab speakers: Inside the "backplate" you will find two audio step-up transformers, one for the bass and one for the treble. There is a first-order crossover network that divides the incoming frequencies to feed the two transformers. Sound Lab actually copied this approach from Acoustat. In the SL speakers, the low pass filter is an inductor, in series with the input and the primary of the bass transformer. The hi-pass filter is an RC network, with C in series and R in parallel with the primaries of the treble transformer. On the secondary side, the two transformers are tied together and do drive the panel as if it were a one-way speaker. Very small value capacitors are used in series to isolate the secondaries of the treble transformer from those of the bass transformer.
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Follow Ups
- Crossover in Acoustats - Lew 11:23:34 08/26/15 (2)
- RE: Crossover in Acoustats - morricab 05:46:00 09/07/15 (1)
- "High voltage crossover"? - Lew 21:12:37 09/08/15 (0)
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