Question about SpeakerCraft MZC-66 Amplifier

1 Answer

Speakercraft mzc 66

Hi and thanks,
I had this amp installed by professionals as well as all wiring , speakers. It has been 3 years and now no sound or power to keypads throughout. When I turn it on the green lights on front of amp light up for just a second and then all turn red. How bad is my problem?

Very sincerely,

Bob Dyer

Posted by on

  • kamike Jan 25, 2009

    My system is exactly the same, and after less than 3-years, all channels, except one, have failed.


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.


    An expert who has answered 20 questions.

  • Expert
  • 85 Answers

Failing component or components needs to be serviced

Posted on Jan 08, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

SpeakerCraft MZC-66 , all zones just buzz\ need to find a repair person that know and understand this brand

That's is probably the main IC chip got busted already that causes the hum.
Hope that gives you an idea...

Jul 08, 2011 | SpeakerCraft MZC-66 Amplifier

1 Answer

I have the same SpeakerCraft mzc-66 Model. Installed 2005. About 2yr later on one of the zone that was rarely used, it started to just put out a clicking noise. It is now down to only zone 1 and 6 that are...

I repair these:

So they never fail again...

Jan 17, 2011 | SpeakerCraft MZC-66 Amplifier

1 Answer

No sound from any of the speakers. The speakers make a tick ticking sound. One room started, then all rooms followed. I have touch five pads one in each room, all touch pads light up when the speakercraft...

Yup, I know what is causing that all right.

I will fix it so it never happens again.

Jan 09, 2011 | SpeakerCraft MZC-66 Amplifier

3 Answers

Speakercraft MZC-66 lost 4 channels

The fact that you are gettng noise out suggests that the problem is in the "front-end" of the amp. It sounds like the pre-amp section is smoked. What you are hearing is a little distortion that is getting through the pre-amp stage. This can be as simple as replacing a few cheap ICs. I don't know your exact model specifics, but this should be a straightforward repair. Where are you located?


Jul 21, 2010 | SpeakerCraft MZC-66 Amplifier

2 Answers

One of my mxc 66s ?


Jul 06, 2010 | SpeakerCraft MZC-66 Amplifier

2 Answers

Need to find a repair center for a Speakercraft MZC66

just find a good amp repairman he can fix it for one.

Sep 01, 2009 | SpeakerCraft MZC-66 Amplifier

2 Answers

We have had the 6 room amp speakercraft mzc 66 for 2 years now and over that time one room keeps blowing the input/output making the room unusaable. We have tried to contact the original installer but they...

I would suspect the cabling not the amp. I'm guessing that the wires are through the walls. Using an ohmmeter, check measure across the wires with the speakers and amp disconnected. I suspect that you will get a reading rather than infinity. If that is the case, there is a nail or screw through the speaker wires in the wall. These wires need to be replaced.

Update this if that is not the case and we'll look elsewhere for other possibilities.


May 05, 2009 | SpeakerCraft MZC-66 Amplifier

Not finding what you are looking for?
SpeakerCraft MZC-66 Amplifier Logo

Related Topics:

484 people viewed this question

Ask a Question

Usually answered in minutes!

Top SpeakerCraft Amplifiers & Preamps Experts

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1128 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

5653 Answers

Gil Shultz

Level 3 Expert

3250 Answers

Are you a SpeakerCraft Amplifier and Preamp Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides