Active Crossover Conundrum!


I am thinking very seriously about using an active crossover with my Klipsch Cornwall lV’s. I have 3 amplifiers, a First Watt SIT-3, Pass XA-25, and the most recent purchase, a Modified Bottlehead 2A3 amplifier. I am considering a Marchand or a DIY Nelson Pass designed active crossover.  Some of the questions I have rattling around in my noggin are; Can I get away with a 2 way? What amplifiers would be best at what driver? Would a 45 or a 300b be a good addition? Should I have my existing passive crossover modified instead? Are there many enthusiasts that have tried active and returned to passive crossovers?

I have already biamped my XA-25 and my SIT-3 and have enjoyed that combination.

The rest of my equipment is as follows: Cary SLP-98, Lumin U1 mini and a BorderPatrol DAC.

Any suggestions from those who have tried or are presently using an active crossover is appreciated.

 

Thanks!

 

ps, I have been listening to the 2a3 since Friday night and it is really really good… amazing results from just 3.5 watts!

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No, you cannot use a two-way crossover on a 3-way system. If you are going to tri-amp, you’ll need a crossover where you can control the crossover point and the gain for each speaker. The DBX234xs is an affordable choice.

@kota1- Thank you for your response, If I go down this route, some computer software, measurement tools will be a must.

@russ69- I assume you could use a 2 way by using a passive XO between midrange and tweeter and have the ability to tweak the Bass/Midrange intersect. I appreciate the affordable XO option.

I found this article interesting written by Dr. Harvey Rosenberg interesting.

https-//www.marchandelec.com/pfjune

 

 

 

@russ69- I assume you could use a 2 way by using a passive XO between midrange and tweeter and have the ability to tweak the Bass/Midrange intersect. 

You can do that of course but a full active crossover might be more efficient.