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Contact

Any Returns must have a Return Authorization Number.  See the Shipping & Returns Page

EMAIL (Best Way)

The most efficient way to contact us is by email.

  • Emails are generally Not monitored evenings or Sundays.

  • Please allow 24 hours for a response, but in general it will be much sooner.

  • If you do not get a response in 48 hours, either A. We did not received your email, or B. We responded and it is sitting in your junkmail folder.

  • Include a phone number on emails so we can contact you if your email is bouncing back.

  • DO NOT SEND EMAILS WITH OVER 10MB OF PHOTOS.  Please resize any images to a reasonable size.  Emails larger than 10MB will not go through and, depending on your provider, you may not get a bounce back.

For customer service issues, please contact us at orders@m4sales.com

For Technical Support or Sales inquiries, please contact us at m4@m4sales.com

For Dealership inquiries, or group buys, please contact us at m4@m4sales.com 


disco at dumont

Phone 818-717-8840
Monday - Friday
  • If you don't get through the first time, leave a message, we return messages in the order they were received.
  • Phone traffic is heavy Mondays, thank you for your patience.
  • Best Time to call 9:00am - 3:00pm PST
 
Warehouse & Showroom (By Appointment Please)
21356 Nordhoff St, STE 103
Chatsworth, CA 91311
 
Please only park in #103 or Visitor Parking spaces.
 
OVERSIZE PARKING
No Oversize Vehicles in the parking lot.  Oversize parking is avaialable outside the complex on Nordhoff St.  No Parking on Nordhoff after 4 P.M. due to anti-gridlock parking restrictions.
 
 
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