Question about Mackie HD1801 Powered Subwoofer (1600 Watts 1x18 in)

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My mackie srm 1800 no sound coming from it what can i do to fix it

I set it up with 2 x srm 1800 subs and 2 12 inch tops all mackie, the 2 tops work fine and one of the subs work fine - but one doesn't work at all - it powers up and the green light flickers OK. i have checked cables and all ok

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Posted on Jan 02, 2017

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Use TRS to TRS balanced cables from the M Audio to the line in 11 and 12.

Set the pan controls for the 11 and 12 to opposite directions to split the stereo to left and right main outputs. (otherwise both main outs mix the left and right and you get mono result.

Posted on Feb 06, 2010

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SOURCE: 2nd time i went to

Unless you are electronically adept, this is NOT DIY. Take this to a shop.

Posted on Apr 29, 2011

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SOURCE: ONLY GETTING MUFFLED SOUND FROM

If you've changed the tweeter and the sound is still muffled the fault is with the HF amp, or the cross-over. You will have to send the amp assembly for repair as it is all surface mount components in there -nothing you will be able to fix yourself. Sorry for the bad news!

Posted on May 05, 2011

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SOURCE: I can't get any sound

There is NO way to select channels to "Source"... The selections on this mixer are to send the channels to SOLO, Sub1-2 or Sub 3-4 and/or main L-R. You should have the bottom button for each channel punched down to L-R. NEVER connect ANYTHING other than an external effects unit to the INSERT jacks!!!! These jacks are combined output/input jacks with send and return on the same jack. Special insert cables are used for these. An external drum machine should be connected to a line input for one of the channels USING a TRS balanced cable. Page 28 of your user manual shows the block diagram and signal flow diagram. The trim control is the input gain control. Start with those say at 12 o'clock and advance the fader for the channel of interest...you should get signal at the main outs. MAKE SURE that the lines from the mixer to the amps are BALANCED TRS type cables... You cannot use unbalanced cables for this. The user manual explains balanced cables and what they look like. I just repaired one of these mixers that some foolish people plugged stuff into the MAIN INSERT jacks and blew out the driver that drives the MAIN insert which kills the input to the MAIN output drivers. There is one small chip between the AMAIN fader and the sub next to it and one has to remove every knob and take the unit all apart to get to it... It is a tiny surface mounted part the size of a matchhead with 8 leads... not for the faint of heart to repair. As a test of this part, you can plug a st of headphones into the RIGHT MAIN insert jack and drive audio into a channel... turn trim control up fully for the channel and the fader on full, and set the PAN control to 12 oclock and punch down the L-R button for that channel. You should hear the audio in ONLY the left ear... Now try the phones in the LEFT INSERT jack... you again should hear the audio in the left headphone only (these jacks are not stereo like the headphones). If you cannot hear anything, then likely somebody has blown that driver in your unit... It is painful and time consuming to repair this... there are hundreds of knobs to pull off and put back on... dozens of screws and cables and to get it all back together. Also make sure ALL of your interconnected equipment is powered from a SINGLE receptacle or power module. Read your user manual thoughroughly. You can get one online download if you need it.

Posted on Sep 10, 2011

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1 Answer

The OL and THERMAL LEDs turn on quickly after an even very low level signal input.


These subs are renowned for problems. The PSU and the output stages as well as the main driver are all weak and there are a number of companies that will upgrade them and sort out other issues such as vibrations. Assuming it is out of warranty and you really want to use this you would be best going to a specialist repairer to get it sorted not Mackie.

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Hi sorry it was mackie srm 1801 works fine on A out put can I use for time all is working well


Yes, you can use the A output, as long as you're OK with it being a mono system. It may be helpful to read the manual which has a lot of info including possible setup configurations. Here's a link-
http://www.mackie.com/products/srm1801/pdf/SRM1801_OM.pdf

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Need spec on Mckenzie loud speakers 12'' dual cone 85 watts rms


What\'s the question, are you asking about eyebolts, SRM 450 or McKenzie speakers?



Let\'s assume speakers. These are quite nice vintage speakers and were fitted in a number of units back in the day. Depending on the use they are going to be put to you\'ll need to find the dimensions of similar boxes for the same use and speaker size from (ideally) makers who used these speakers or something similar. It\'s going to be a bit suck it and see and will also depend on if you are looking to use an infinate baffle, sealed or vented enclosure.



Try Speakerplans com

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It would be very unusual if the blue LED is burned out. They should last a million years. I suspect the power supply has a problem.

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What size internal fuse on mackie srm450v2 speaker


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ONLY GETTING MUFFLED SOUND FROM ONE OF MY MACKIE SRM V2 SPEAKERS,HAVE CHANGED DIAPHRAM BUT PROBLEM STILL THERE


If you've changed the tweeter and the sound is still muffled the fault is with the HF amp, or the cross-over. You will have to send the amp assembly for repair as it is all surface mount components in there -nothing you will be able to fix yourself. Sorry for the bad news!

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1 Answer

Hi I have Mackie DFX-12 Mixer along with 2 Power


Run your speakers cables to your stereo "outs" (L/R) then run your sub off of one of your aux "outs" or sub group "outs" (make sure you assign channels to sub group out).

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1 Answer

Problem with Mackie SRM450V2: HFsignal bleeding through LF driver,low HF OUTPUT also. Filter problem i suspect.


There is an entire crossover circuit inside that is BEFORE the amp section. There are 2 separate amps: one for HF and one for LF. Can you describe the noise you are hearing in more detail? Is hte sound effected by the gain controls at all? What happens without any input?

Thanks,
Dan

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