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Post by widespreadpanic on Jul 8, 2023 0:56:52 GMT -5
Howdy. What are attenuators? What is their purpose? Why are they on my maggies? Does it improve performance and/or the sound quality? Would there be an improvement if i bypass them? Would there be an improvement if i replaced the stock attenuators with metal that has better conductivity? Was there once a game show called "20 Questions"? Is it bigger than a breadbox? Thank you kindly for your consideration. Adios.  |
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Post by marcl on Jul 8, 2023 1:50:14 GMT -5
Howdy. What are attenuators? What is their purpose? Why are they on my maggies? Does it improve performance and/or the sound quality? Would there be an improvement if i bypass them? Would there be an improvement if i replaced the stock attenuators with metal that has better conductivity? Was there once a game show called "20 Questions"? Is it bigger than a breadbox? Thank you kindly for your consideration. Adios. View AttachmentIf it's just a metal bar, then it is not actually an attenuator, it's just a jumper made of metal and it just passes the signal to the speaker without affecting it. Some will say they can hear a difference if they use copper or some sort of wire. No scientific evidence that this could be the case, but it makes some people happy to think so. This is the back of my CCR with the stock metal jumper in place, so no tweeter attenuation is happening.  The actual attenuator resistor would look like this.  But ... if you have a resistor across the place that says Tweeter Attenuator, then that reduces the output of the tweeter. This is often used when the speaker is new because the tweeters will sound brighter until the diaphragm relaxes a bit as they break in. Using this resistor is optional and just a matter of personal preference. As with other things, some people believe they hear a difference if they use a different type of resistor. Less common is the use of an inductor across a second set of connectors that some Maggies have. The 30.7, for example, has these connectors and the inductor can be used to limit mid-bass if required in a given room. |
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Post by 405x5 on Jul 8, 2023 8:18:08 GMT -5
Howdy. What are attenuators? What is their purpose? Why are they on my maggies? Does it improve performance and/or the sound quality? Would there be an improvement if i bypass them? Would there be an improvement if i replaced the stock attenuators with metal that has better conductivity? Was there once a game show called "20 Questions"? Is it bigger than a breadbox? Thank you kindly for your consideration. Adios. View AttachmentThe word by itself carries with it a broad definition…… If I were you, I would go to the source for the best answer. |
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Post by widespreadpanic on Jul 13, 2023 20:42:32 GMT -5
So this is what i decided to do with the magnepan fuses and jumpers. I ordered copper rods. 2 rods about 6 inches long for each different diameter is what was offered on amazon. The fuses are 3 AWG and i was able to find the exact diameter copper rods to replace them with. However the smallest diameter i found was 3/16 inch and the jumpers are 1/8 inch in diameter. I clamped that rod in the jaws of my drill and used some 80 grit sandpaper and stroked up and down the copper rod until the desired diameter was achieved. To get the shape of the jumper i ripped down a piece of wood on a table saw to a width of the inside measurement of the jumper which is 5/8 of an inch. I used a rubber mallet to bend the rod around the edges of the wood. I found it extremely hard to match the straightness of each of the legs of the jumpers to get them to line up with each of the 2 holes so the copper jumper would slide right in. The copper rods want to keep the curve as you bend it. I discovered that if I took the panel that holds the jumper and fuse assembly off the speaker and removed the jumper assembly from the panel it was no problem to install the jumper into the nuts and tighten down the allen screw to hold them in place. I then slid the entire jumper unit into its holes of the panel and screwed the nuts on the back of the panel to hold the whole assembly in its place. And voila!  |
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Post by SteveH on Jul 14, 2023 12:36:32 GMT -5
As far as attenuators go, my Carver Platinums actually have three controls built into the back of the speaker. The white hash marks are the recommended starting point for listening until the speakers are played for the first twenty hours for break in, and then you can adjust the controls to your liking. I have had these speakers for thirty-one years, played with the controls over the years and they do sound best when the controls are set at the white hash marks.  |
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Post by bluemeanies on Sept 23, 2023 9:59:36 GMT -5
So this is what i decided to do with the magnepan fuses and jumpers. I ordered copper rods. 2 rods about 6 inches long for each different diameter is what was offered on amazon. The fuses are 3 AWG and i was able to find the exact diameter copper rods to replace them with. However the smallest diameter i found was 3/16 inch and the jumpers are 1/8 inch in diameter. I clamped that rod in the jaws of my drill and used some 80 grit sandpaper and stroked up and down the copper rod until the desired diameter was achieved. To get the shape of the jumper i ripped down a piece of wood on a table saw to a width of the inside measurement of the jumper which is 5/8 of an inch. I used a rubber mallet to bend the rod around the edges of the wood. I found it extremely hard to match the straightness of each of the legs of the jumpers to get them to line up with each of the 2 holes so the copper jumper would slide right in. The copper rods want to keep the curve as you bend it. I discovered that if I took the panel that holds the jumper and fuse assembly off the speaker and removed the jumper assembly from the panel it was no problem to install the jumper into the nuts and tighten down the allen screw to hold them in place. I then slid the entire jumper unit into its holes of the panel and screwed the nuts on the back of the panel to hold the whole assembly in its place. And voila! View AttachmentJust seen your post here as I have not been on Emo lately…🙁 I am new to relatively new to Magnepan. I never knew just how good these speakers were until a friend on this forum suggested that I give them an audition. I was blown away. I started with the LRS+. This speaker was one of the best that I have heard and the planer sound is breathtaking. A totally new experience from bow speakers. Over the last year or so I moved my audio system from my HT room into my living room. Since my wife passed away I found myself not enjoying the HT room experience as I once use too but I love music. I was thinking about a good monitor. I was interested in the Legacy Studio HD. A friend suggested the Magnepans but I was a little worried about the size. I have a small house of about 1200’ Sq. My living room is roughly 13by14 with 8’ ceilings. As mentioned I fell in love with the LRS+ so much that after 3months I jumped into the 1.7i and I am glad I did. I still have the HT and made the move to start over with my audio listening. Everything except stands and cables are new. Well worth the investment. I stumble upon a video on YouTube from OCD HI-FI guy…Mikey is a no BS person and he is easy to talk to. He does not pull any punches. You may want to check him out. I purchased from him a “FUSE REPLACEMENT KIT” made for all Magnepan speakers. Again worth the investment and yes I did hear the difference. 11Stereo.comJust wanted to share some information. Enjoy |
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Post by leonski on Oct 19, 2023 20:41:27 GMT -5
I made my OWN jumpers out of #6 solid copper house wire.
It is just a LITTLE too large which was OK since I 'spun' the piece in 400 grit sand paper and got it down to shape.
Probem with copper is it oxidizes easily and should be pulled and re-sanded 2x or 3x annually.......
IMO? The STANDARD jumpers should be discarded. They are magnetic (steel) and chrome plated. Really not the right stuff.....
Maggies come with attenuattors. Otherwise known as a 'power resistor'......
Some users in some rooms find the treble a little 'hot'... Installation of a small power resistor is the 'fix'....
1 ohm? or various small values in parallel to get intermediate value.....
The BEST thing to do with the Magnepan fuse? Start eliminating connections and wires. You should be able to delete 3 or 4 connections in even the Single Fuse models....like my MG1.6
Twice that for a 'pair'.....
If you look at 'em you'll see they are cheap and cheesy.
Easy fix and FREE......
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