2 way crossover on Chinese pcbs

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Recently acquired these boards from Ebay, with a view to sometime building a 2 way xover to feed low power class A amps (not built yet).
The only schematic is the one shown on the Ebay page, which also has a list of cap and resistor values for different xover frequencies.
No advice is given on which type of op amp should be used so I thought ne5524 might do.
A set of pcbs for just over £5 suits my small budget, and they appear to be good quality.
 
2 way xover

circuit diagram
 

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