How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask John Your Own Question
John, Engineer and electronic enthusiast for more than 12 years.
Category: Consumer Electronics
Satisfied Customers: 227
Experience:  I am here to help you!
Type Your Consumer Electronics Question Here...
John is online now
A new question is answered every 9 seconds

I bought a Logan Motion 4 bookshelf speaker. When I hook it

Customer Question

I bought a Martin Logan Motion 4 bookshelf speaker. When I hook it up to my system it trips out my amplifier
JA: What's the make/model of your device? How old is it?
Customer: martin logan motion 4. unsure how old
JA: How long has this been going on? What troubleshooting have you tried?
Customer: I tried it on 2 separate amps. Trips both out
JA: Anything else you want the electronics expert to know before I connect you?
Customer: no
Submitted: 7 months ago.
Category: Consumer Electronics
Expert:  Nathan replied 7 months ago.

Hi, I'm Nathan.
Sorry to hear that you're having trouble, but I'll do my best to help you. Please give me a few moments to review your details here.

Expert:  Nathan replied 7 months ago.

What amps are you using?
Could you try disconnecting the speakers (don't let the wires touch), but leave the wires connected to the amp on the other end and see what happens? This would tell us if there is a short in the wiring that is tripping a protection circuit on the amp.

Customer: replied 7 months ago.
Well i tried that. I even hooked up different speakers and they work fine.
Expert:  Nathan replied 7 months ago.

Different speakers on the same cords?
Can you test the logan speakers independently, one of them may have an internal fault.

Customer: replied 7 months ago.
Expert:  Nathan replied 7 months ago.


Customer: replied 7 months ago.
actually I only have one ML speaker. Do they have to be hooked up in pairs?
Expert:  Nathan replied 7 months ago.

That depends on the amp really, but most are not built to drive a single speaker, especially a 4ohm load. You could try a bridged connection IF your amp supports that.

+ on one channel to - on the other.