We accept Mastercard, VISA, Discover, American
        Express.
        You can also send money with Zelle to zelle@marchandelec.com. 
      We also accept checks and
          wire transfers; please contact us for bank info.
        If you like we can send you an invoice by email and you
        can just pay online with credit card. It will come from
        invoice@authorize.net. (chase bank)
       
When ordering crossover networks, please specify
        the desired crossover frequency (and slope for some crossovers).
        
       
Here is an orderform
        you can use if you wish.
       
Some
          of our products are available on Amazon. Click here to see our
          Amazon offerings.