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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: active vs passive crossovers I feel the credit card coming out posted by TomWh on June 19, 2001 at 15:08:48:
Before you buy active crossoves, spend some time learning how they work.You will find that with a little DIY skill you can insert active filtering into your system very cheaply.
For example, if you know the input impedance of your amplifiers, you can implement a first-order "active crossover" with nothing more than two capacitors.
If you want higher-order filtering, you can swap the coupling caps in the gain stages of your amplifier (if you have a DIY SET for example). This costs almost nothing and adds NO EXTRA PARTS!
For example, if you want second-order on the highs and first-order on the lows (a common arrangement), you just need three capacitors per channel.
No extra gain stages. No extra interconnects. Mega simple.
I bought some Marchand stuff (opamp-based 4th order active crossovers) but never used it. I'll sell it to you if you're interested.
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Follow Ups
- Re: active vs passive crossovers I feel the credit card coming out - nl 08:33:35 06/24/01 (0)
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