How to replace a diaphragm in a Mackie SRM 450. Hope this video helps. If you like it, "Like" us at MusicMagicDJ.... Or visit our website www.musicmagic.biz
Had to replace the diaphragm in my Mackie Thump 15A, to my surprise, it's a Fostex!!! I'll bet the same from the 1970s...ha these are in everything from Yamaha, Peavey, Eminence, you name it, it's pretty good sounding but not much power handling or low end, I would always put a 5K capacitor on these (4.7mfd If I remember), probably not a bad idea. some companies use a light bulb, power soak. I picked up 2- for 9$ on Amazon, hopefully they will hang in there a bit. Cheers!
The original (1st generation) SRM 450's were either made in USA or Italy using RCF components. I have 6 pairs (purchased brand new) of these in my mobile DJ company. Sound fantastic and I have never had a problem with them. They are still in use just about every weekend. Newer Mackie products are NOT of the same build quality or components. Buyer beware.
I have Mackie Thump TH-15A, i was replacing the woofer, there is a small black and white wire inside that is disconnected but cant figure out where it goes.
Hi, we have a pair of Mackie SR1521z speakers and one of them has a blown HF driver (coil damaged) the diaphragm that stopped working was a replacement for another blown driver. I also noticed they use the same drivers as the SRM450, what is the best replacement that will last longer? Will ferrofluid help?
The truth is, most of these diaphragms are mass manufactured in China and Mackie just has their name put on them. So whether it has the Mackie name or is purchased as "Aftermarket", it's the exact same part and won't last any longer. The good news is, how long a diaphragm lasts is for the most part, up to you as 90% of failures are due to operator error. Burned coils are caused by overdriving and distortion. It takes relatively little wattage to produce clean highs. Re-examine your gain and frequency levels. Also if you cannot find a reasonably priced diaphragm, there are a number of (no name) 1" throat complete drivers out there which are ready to screw right in with higher wattage ratings and cheaper than the replacement Mackie diaphragm alone. We sell them all the time. As for ferro fluid, I have never found an actual use for it. It is basically just a grease. Grease is for reducing heat caused by friction, not electrical resistance generated heat. Ferro fluid may slightly delay damage but won't prevent it. Hope this helps, It you need more info or would like to learn more about speakers, Please find us on Facebook (Speaker Medic)
hi how do i find witch side is correct + and - when replace the new Diaphragm is cause i removed the dead Diaphragm to go to a store they did not have i encomend but not arrived yet now idk witch side is correct any way to find out?
@@oi3 The diaphragm should have spring loaded connections that are marked as Red and Black. Red is positive. Depending on the manufacturer they may also be marked with a + or - . However it will cause no harm if polarity is reversed and will make no noticeable sound difference.
@@garycotton thanks man..i have another question,is it ok to rewind or recone the woofer of mackie srm450 v1,and can you tell me what is the wattage of the woffer,so i can buy a replacement if its not ok to rewind it..
@@alphagisonsalvador3807 the speaker is rebuild able. It is an odd size designed for that cabinet. A standard 12 inch does not fit properly and would cost more.
It must be a much older unit. Originally, Mackie used a lot of Italian RCF parts. Then , like everybody else, they went cheap. Mackie has since been sold to Loud Technologies.
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Had to replace the diaphragm in my Mackie Thump 15A, to my surprise, it's a Fostex!!! I'll bet the same from the 1970s...ha these are in everything from Yamaha, Peavey, Eminence, you name it, it's pretty good sounding but not much power handling or low end, I would always put a 5K capacitor on these (4.7mfd If I remember), probably not a bad idea. some companies use a light bulb, power soak. I picked up 2- for 9$ on Amazon, hopefully they will hang in there a bit. Cheers!
The original (1st generation) SRM 450's were either made in USA or Italy using RCF components. I have 6 pairs (purchased brand new) of these in my mobile DJ company. Sound fantastic and I have never had a problem with them. They are still in use just about every weekend. Newer Mackie products are NOT of the same build quality or components. Buyer beware.
In Italiy, this serie used to mount RCF componentes, same like the RCF Art300,
That's why it was the cabinet dj's used to all buy
I have Mackie Thump TH-15A, i was replacing the woofer, there is a small black and white wire inside that is disconnected but cant figure out where it goes.
Hi, we have a pair of Mackie SR1521z speakers and one of them has a blown HF driver (coil damaged) the diaphragm that stopped working was a replacement for another blown driver. I also noticed they use the same drivers as the SRM450, what is the best replacement that will last longer? Will ferrofluid help?
The truth is, most of these diaphragms are mass manufactured in China and Mackie just has their name put on them. So whether it has the Mackie name or is purchased as "Aftermarket", it's the exact same part and won't last any longer. The good news is, how long a diaphragm lasts is for the most part, up to you as 90% of failures are due to operator error. Burned coils are caused by overdriving and distortion. It takes relatively little wattage to produce clean highs. Re-examine your gain and frequency levels. Also if you cannot find a reasonably priced diaphragm, there are a number of (no name) 1" throat complete drivers out there which are ready to screw right in with higher wattage ratings and cheaper than the replacement Mackie diaphragm alone. We sell them all the time. As for ferro fluid, I have never found an actual use for it. It is basically just a grease. Grease is for reducing heat caused by friction, not electrical resistance generated heat. Ferro fluid may slightly delay damage but won't prevent it. Hope this helps, It you need more info or would like to learn more about speakers, Please find us on Facebook (Speaker Medic)
Put a B&C DE 250 - 8 Ohm on that, and you won't change diaphragms anymore
hi how do i find witch side is correct + and - when replace the new Diaphragm is cause i removed the dead Diaphragm to go to a store they did not have i encomend but not arrived yet now idk witch side is correct any way to find out?
or can put the Diaphragm any side till it fits?
@@oi3 The diaphragm should have spring loaded connections that are marked as Red and Black. Red is positive. Depending on the manufacturer they may also be marked with a + or - . However it will cause no harm if polarity is reversed and will make no noticeable sound difference.
@@garycotton ty
@@garycotton after put the new Diaphragm im gonna measure w multimeter to test and see if its correct should be
What is the size of the coil that you replace,is it 44mm 1.75 inch?pls waiting for your respond..
1.75
@@garycotton thanks man..i have another question,is it ok to rewind or recone the woofer of mackie srm450 v1,and can you tell me what is the wattage of the woffer,so i can buy a replacement if its not ok to rewind it..
@@alphagisonsalvador3807 the speaker is rebuild able. It is an odd size designed for that cabinet. A standard 12 inch does not fit properly and would cost more.
my driver fostex fd40 fail please help..?
Put a B&C DE250 & you'r good to go.
mine is made in Italy, or at least the giant sticker on the back says that
It must be a much older unit. Originally, Mackie used a lot of Italian RCF parts. Then , like everybody else, they went cheap. Mackie has since been sold to Loud Technologies.
Mine, too, Made in Italy, and never had a problem with it. Since 20+ years.
laoluu
Because it’s basically an RCF.