Question about Bob Mackie Mackie M-1400i Power Amplifier Car Audio Amplifier

1 Answer

Mackie 1400i Shorts out about 75% of volume when bridged to a 4ohm load randomly. If I pick the side of the amp case up a half inch and drop it to the floor it kicks back to 100% volume. Obviously it's a short, but WHERE and WHAT would be shorted??? help appreciated Geoff.Mitchil@gmail.com

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Hi, the problem is probably a bad solder. I don't know how this amplifier is made, but if the 2 channels have this problem together you should start by re-solder properly the components of the power supply especially the auxiliary power supply for the preamp. If it's a class H amplifier, check the hi + and - .
Bernard

Posted on Feb 11, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

How to wire a crossfire vr602 2 channel amp at 4ohm and 2ohm


I would be more worried about the amp than the speakers, those subs should handle the watts with no problem. The problem will be in the amps ability to remain working with a bridged 2 ohm load. It may not even stay on without going into protect mode with a 2 ohm load. If it does stay on then it may get really hot and shut off from the heat off of the Mosfett Transistors, or it could burn the Mosfetts from driving them too hard. Basically it's your choice, run your amp hard and gain more volume or run it with slightly less sound and have a cleaner sounding more stable amp that will stay on and have less chance of being damaged. If it's not loud enough the best thing to do is buy a different amp that better suits your needs and fits the application. In your case a 2 ohm stable Mono amp is going to be your best bet or a 4 channel amp bridged into 2 channels and run with 4 ohms on each channel. Or another exact matching amp like your 2 channel amp bridge them both and have each powering 1 of your 4 ohm subs. I used two VR mono amps to power my two 12" 4 ohm subs for a few years

Apr 03, 2013 | Crossfire VR602 Car Audio Amplifier

1 Answer

Hifonics colossus-ltd dual monoblock amp does not have much output, running a cerwin vega stroker dual 2 ohm sub wired 4 ohm load bridged


Bridge at 4ohms your only getting 600watts rms. You will need to bridge at 1ohm (parallel) and adjust the gain accordingly. This will give it 1600 watts rms. If you would of had a dual 4ohm sub, then you could of bridged it at 2ohms mono, but you can't you have to go either 1 ohm or 4ohm. I believe it's not getting enough power.

May 20, 2012 | Hifonics Colossus-ltd Dual Monoblock 3200w...

1 Answer

I have a plad213 what load impendance am i running it i hook up 2 4ohm speakers in series bridged on that amp and how many watts RMS am i getting per speaker


2 4 ohm speakers wired in series is 8 ohms and then is dropped back down to 4 ohms when you bridge it.

2 4 ohm speakers wired in parallel is 2 ohms then dropped down to 1 ohm when bridged
(most amplifiers will not handle loads below 2 ohms)

hope this info helps

May 20, 2011 | Pyle Dryver PLAD213 Car Audio Amplifier

3 Answers

It has an A and B channel for spkrs and i have one spkr bridged. do i split the neg to side a and pos to side b or just use one of the channels?


Could you elaborate on how the speaker is bridged?

I think you want to hook up a single speaker to a stereo speaker output.

In this case, you would strap (bridge?) the right and left speaker terminals by running a short wire from A right negative to A left negative. Then strap A right positive to A left positive -- this will give you mono output on either of the right or left speaker terminals -- connect your speaker to either one of these.

Do you know what the ohm rating is for the speaker outs on the amp and also the speaker itself?

Charlie

Aug 31, 2009 | Rockford Fosgate P3001 Car Audio Amplifier

1 Answer

I have a 50x2 amp that is bridged 100 into a 4 ohm load. can i run this to a 6x9 3way speaker rated 100rms 4 ohm


Yes, you can. There's the impedance match between amp and speaker (4ohm to 4ohm).
The only issue I would say is that if the amp is putting out 100 watts RMS, then you wouldn't want to drive the speaker to the max, because it's rated at 100 watts RMS max, and at louder volume, it will start to distort and possibly blow from fatigue. Other than that issue, it should work fine.

Jul 22, 2009 | Car Audio & Video

2 Answers

I need to know how to bridge a a 4 ohm 15 inch sub down to1or2ohm


Hello solo7908,

With a single 4ohm DVC sub there are only two possible wiring solutions, parallel the voice coils for a final 2ohm load or series the voice coils for an 8ohm load. In your case, you want to wire them in parallel, both positives and both negatives connected to the amp terminals.

Here are the diagrams: (-) to (-) and then to the amp - (+) to (+) and then to the amp. Impedance = 2ohms.

Hope this helps.

Jun 06, 2009 | Kicker CompVR 12" Subwoofers/Enclosure...

1 Answer

I'm having problems getting full power to my sub.


when bridgeing an amplifier it always sees half of whatever load you have on it, so if you have a 4ohm speaker when it is bridged the amp will see 2ohms, so yes you can bridge the 4 ohm speaker

Mar 05, 2009 | Bazooka ELA500.1 Car Audio Amplifier

1 Answer

Mackie 1400 overload lights on


hey Ron
use a larger ground wire it will stop the overload you may have to place it somewhere new but its the size of the wire that trips the overload feature too small and amp will go and protect itself (bigger ground better sound)
hope this helped

Feb 28, 2009 | Bob Mackie Mackie M-1400i Power Amplifier...

1 Answer

Help on 1 amp and 1 alpine srw-124d


You have dual 4-ohm coils. 2 coils per speaker.using one speaker, if you take and run the postive from one coil and connect it to the negative of the other coil, then take a wire from your bridge channel on your amp and connect the positive to the the remaining positive on the one coil and connect the negative to the remaining negative on the other coil you will create a 8ohm load on the amp in bridged mode.

now this is the important part. The bigger the load on the amp the greater the wattage output to the speakers. This sucks the wattage out of the amp. Careful not to overload you amp. The setup above is safe for any amp. The following is for 2ohm stable amps only. The lower the ohm value 2, 4, 8 and so on, the greater the load on the amp.

connect the positive of one coil to the positive of the other. connect the negative of one coil to the other negative of the other coil. then take a wire from your bridge channel on your amp and connect the positive to the the positive on one coil and connect the negative to the negative on the same coil and you will create a 2ohm load on the amp in bridged mode.

Series = add the two ohm value
parallel= halve the ohm value

you can play with series and parallel together using more than one speaker setup.

Jun 07, 2008 | Alpine Type-R SWR-1242D Car Subwoofer

1 Answer

4ohm subwoofer and 2ohm amp


just run str8 pos and negative

Mar 08, 2008 | Car Audio & Video

Not finding what you are looking for?
Car Audio & Video Logo

Related Topics:

267 people viewed this question

Ask a Question

Usually answered in minutes!

Top Bob Mackie Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

4748 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

yadayada
yadayada

Level 3 Expert

66266 Answers

Are you a Bob Mackie Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...