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Multi-Way Conventional loudspeakers with crossovers

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Old 28th August 2005, 03:41 PM   #11
rabbitz is offline rabbitz  Australia
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Most of the info that I have found on series state that they are better with the single series resistor and not an L-Pad and that's what I have found. Even in the parallel world, a lot use the single resistor including Vance Dickason. Yes L-pads do provide a constant load with leaving the tweeter impedance constant no matter what the attenuation is on a parellel network but I'm not sure if that is the case on series network.

The spreadsheet takes the resistor into consideration during the calculation and with your drivers with the series resistor (R1) only gives almost equal impedance on the tweeter leg and woofer leg of the network which is a good thing.

5W resistors are fine and most of mine are non inductive wirewound. Use R1 only (the one in series) as it will sound better but try the L-Pad with R1 and R2 if you like, but that will alter the cap value. As you reduce R1, C4 becomes larger and visa versa.... it's all linked together.
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Old 28th August 2005, 06:02 PM   #12
Jennice is offline Jennice  Denmark
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Thanks,

I'm eager to try it out when the boxes get back.
A friend of mine is doing the grinding / woodwork as the speakers will probably end up with him... but I have parts to make another pair.

I use the meantime to think (or re-think) the X-over and get ideas....

... and the important help from fellow DIY'ers!
Jennice
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Old 29th August 2005, 04:26 AM   #13
rabbitz is offline rabbitz  Australia
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Just try the series crossover and see what you think. The values I gave earlier would not be too far off the mark and should sound very good.
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Old 29th August 2005, 07:15 AM   #14
Jennice is offline Jennice  Denmark
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Hi Rabbitz,

I got a call last night: The boxes are sanded to a nice surface, and are ready for paint (we'll let a proff. car paint shop do it).

After that, it's out shopping for components.

Now it's all about getting rid of the flu *cough cough* to get started...

Jennice
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Old 29th August 2005, 01:14 PM   #15
rabbitz is offline rabbitz  Australia
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Sorry to hear about the flu but please keep it away from us...... aaaachoooo.... too late
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Old 29th August 2005, 05:52 PM   #16
Jennice is offline Jennice  Denmark
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