Magnepan 3.7i breakdown, shakedown, and rebuild

Take a look at a completely pulled apart Magnepan 3.7i. See how it works. See how I rebuild and personalize it and make it a Mikenepan !

[@petergordon931]

The horn innovation to the 3.7i 's could be a next big step in its evolution Thanks yet again for your endless inspiration !

[@redshield3296]

Taking things apart and rebuilding them is a sign of an engineer. When I was a kid I rebuild my electric guitar, with spare parts from about eight other guitars, mine sounded like a Les Paul but played like a Stratocaster I had humbucker pickups on a Washburn body with 7 other pickups crowded on that body, with a Maple fretboard up to the fifth fret where a Rosewood fretboard took over. Other guitarist used to laugh at it until they played it.

[@OCDHIFiGuy]

Oh yeah. You are part of my clan for sure

[@redshield3296]

OCD HI-Fi Guy question. What subharmonic woofer if any would you recommend with magnepan speakers? And which size magnepans do you recommend? I’m glad I stumbled across your channel. I went to a speaker show in Munich Germany recently and listened to some million dollar speakers. One speaker coast $2million, it’s Italian and it’s called “Opera Only”. When me a my gf were setting in the room with Magnepans I didn’t even know they were Speakers LOL. When the music came on is was The average white band’s “ pick up the pieces” which rocks! My girl look at me and took the words right out of my mouth, “I like these better than the $2 million dollar ones!

[@PedjoGT]

Everybody in a lifetime must hear a Meggye

[@socksumi]

Thank you for this. Magnepans are affordable, quality panel speakers for every man (or woman).

[@redshield3296]

socksumi sorry be they are nor for girls

[@davidperry4013]

I want to hear magnepans in person. Magnepan 3.7i’s powered by tubes can be the perfect system for some audiophiles.

[@OCDHIFiGuy]

True...

[@gregorystark1217]

that is one of the best mods that I have ever seen for Maggies.

[@ibleebinU]

Nice explanation and rebuild mod. Please tell me you drank a pot of coffee before doing this. Your energy is off the charts!

[@noctemrealm6013]

hes passionite bro

[@manirahnema9585]

Its awesome, I've never seen something like that

[@OCDHIFiGuy]

They sound killer. Entry level is only $649 per pair. Best speaker deal happening anywhere is Magnepan. Cheers !

[@jimovergaard1254]

You are a genius for the new frame. Resonances will be absorbed that is so vastly superior to the original that I am sure you are a very happy listener! Waveguide? Awesome. .Triamp - doing it correctly, it will be in phase and sound and the bass, mid woofer and ribbon will blow you away. The cost of the amplifiers are not as high as you would think as amplifiers of the bass and mid bass need only 100w/ch 8 ohm on each. The ribbon can be powered by class a. You don't have to buy the most expensive amplifiers as prices come down from the monster 500+ w/ch to just 100 and 25 for the ribbon. Just so they are stable. Good cables works well too. I can only imagine what your system sounds like

[@OCDHIFiGuy]

come listen !

[@midnitematador6249]

So this is what the inside looks like... I have 3.6r's that one panel has started to make a buzzing sound with upper bass material which indicates a wire or wires has come unglued and I'm gonna have to go in there and repair it.... From what I've read the 3.7i and 3.6r are very similar in design... This video gives me the confidence I need to take on that task! Thx man!

[@OCDHIFiGuy]

See ? There ya go. There is a certain glue to use I cant remember now, then glue the wire down and support it underneath then set some books on it and that's it.

[@midnitematador6249]

@@OCDHIFiGuy Dap Weldwood contact cement is what I found to be used, but yes this video is very helpful in showing me the way! Thx again!

[@MichelLinschoten]

I just restored an mg2 and a tympani I (3 panels per side) my main speaker., It’s not hard at all .. just call magnepan , they will send you all you need including new socks if needed, glue ,wire and rudimentary instruction. Take your time and makes pics of you remove anything or not feeling to comfy with. Restoring them is super easy

[@roberthart3452]

excellent idea to reframe them

[@OCDHIFiGuy]

Thanks Robert, its quite an undertaking

[@darrenweight5972]

Great idea. I’m a little worried about the baffle depth that will be in front of the ribbon tweeter... it will alter its in-air response and off axis response. I purchased a pair of LRSs a few days ago. They should be here in about a week. I’m excited to fire them up!

[@OCDHIFiGuy]

what off axis response ? lol.. for real these things beam and have zero off axis response. I am doing a wide flare waveguide anyways just to see if we can create a wider sweet spot.. it was my concern as well.

[@JohnDoe-np3zk]

You are gonna love them. You might want subs I have two REL T5i which matches up great! I have to have the subs. Set them up as reflectors and near field as well if you can. I like them from afar they are so dialed it's scary.

[@AudiophileTommy]

This was awesome dude !👍👍👍👍👍

[@edwintschopp1493]

I am getting sea sick with your camera "work"...

[@harryhazelip]

Hey man! Love your channel. So I just got my magnepan 3.7i brand new. I'm gonna start breaking them in. Do you have any suggestions on how to break them in? With the metal jumpers or with the resistors? Or it doesn't matter? Greetings from Joost

[@bubamara3010]

I have 1.7 maggie upgrade crossovers in the box outside of the speakers, MUNDROF&JANTZEN)CAPS, THEY SOUND FANTASTIC, QUAD ARTERA AMP 2x240W , PUSHING beautifully 1.7 maggies, hunting for 3.7i secondhand,i hope i will find one day!!

[@OCDHIFiGuy]

Keep on Truckin Buba !!

[@samuelsalins8309]

Experimenting in sound interesting 🎶👌

[@garykarczewski6678]

Love this... I am leaning towards your concepts for killer sounding audio.

[@OCDHIFiGuy]

Try them, you will not be disappointed...

[@rikhoefs9519]

Hello,love your works!i own the 3.7 without the i.Question is that copperfoil original around the aluminium wires of the tweeter and midrange?

[@tryintobesoquiet]

Cool. Thanks.

[@lgtakano]

Hi Mike, do your still have the instant upgrades available?

[@howardmallory3288]

I have a pair that sounds dull and a little lifeless. What do you recommend

[@snowpuppy77]

Very interesting. Thank you for sharing. My Dad has a pair of 3.7i's un-modded. They are truly amazing speakers and a bargain at the price. Best tweeter I have heard in a speaker. Have you experimented with upgrading the fuses in the 3.7i? If so what kind of benefits? And what did you use?

[@OCDHIFiGuy]

Hi Snow Pup, yes for sure, you use a fuse bypass which removes the fuse by replacing it with a pure silver tube. The kits are sold on Mikepowellaudio.com right now, but soon to be 11stereo. com I will be expanding the options within a week to include two different types of fuse jumper in the kit. One to liven it up and one to chill it out if its too lively to begin with . 90% of people want to liven it up, and the regular kit will be like pulling cotton ouyt of your ears with the 3.7i. This is all that is "needed" per se in my opinion. Next step is rigid stand.

[@MinamiSen]

I want to ask did you use a strip of copper foil and replace the broken part in the tweeter? Thanks. My tweeter is broken at some point. Can you let us know how you fix your tweeter?

[@rikhoefs9519]

Imo you need to replace the ribbon

[@jimminychristmas8100]

Nice project y'all got there! I think I need a pair of the little ones. How many watts min. does one realistically need to get the .7s singing?

[@OCDHIFiGuy]

Depends how much current. Thats a better question as they are current hungry not watt hungry, but a Jeff Rowland 125 amp is only $3K. This is the amp I recommend for ,7i

[@lvazquezus]

Hi Mike, I don't know ESL / EL speakers like you do, I heard so much about Soundlabs, would you care to provide an opinion on Maggies and Soundlabs?

[@OCDHIFiGuy]

Sorry for the delay. Just now saw this. They are 2 different technologies. Planar Magnetic, and electrostatic. Sonically the general consensus is ESL has better midrange and I cant remember the advantage to planar Magnetic in terms of sonic. Soundlabs are killer speakers, Maggie's need slight modification to be thier best, but for the money. Your return is ridiculous in terms of huge deep soundstage.

[@kingjohnny7215]

the way you modifying those magnepan's they gonna look like the vintage carver panel speakers, that's way cool, how they sound man?

[@OCDHIFiGuy]

Shiiiii. Amazing man.. I'll put up a vid of how they turned out..

[@steveassante6797]

Nah !!!!!! The only people that you piss off are some of the 'High End Audio Industry' Dealers & small Manufacturers (Who are just throwing Parts together into a box & calling it a "Audio Component"). I'm trying to decide if want to tackle Upgrading my 2.7 QRs at some point. I'm tempted to try some of the things I've seen on the MUG board over on AA

[@MichelLinschoten]

I wonder if something can be done with a Tympani always annoyed me that wobbly shit

[@Rob-co2pc]

try a dm 600 first serie . a vortex power amp. pa 1304 .pre mz 502. much better and you save money . good luck for finding this stuff😅😅😅

[@billmilosz]

Please move your camera around faster, I could almost see some things once in a while...

[@OCDHIFiGuy]

Sorry Man , Im usaed to all of it and it coud take a very long time If I showcased it all. What do you want to see ?

[@billmilosz]

@@OCDHIFiGuy Well. I tried to watch your video but all the repid shaky motion caused me some issues....eye strain / headache kind of thing. Next time, smooth & steady might be better than rapid

[@johngabris9690]

hold camera stead ffs

[@mrglindsay3]

Not built very well if you have to rebuild them already.

[@OCDHIFiGuy]

Lol. They were 3 months old. I rebuilt perfectly good 3.7i

[@robertblumpkin4759]

this video is good, but calm down.... take a chill pill.

[@OCDHIFiGuy]

I know, sometimes I get a little fired up without realizing .. my apology..

[@robertblumpkin4759]

@@OCDHIFiGuy lmao I knew you were excited, that's why I said that. All in good fun :)

[@daveblane6442]

worst camera work -- EVER

[@OCDHIFiGuy]

Clearly you think I care at all about "camera work" ... I suppose I could look really cool and like I know what I'm talking about if I only had some better camera work. Well I don't like polished production. Too fakey fake. I'd rather have it real even if its dirty...

[@petergordon931]

I feel grateful Mike that you are doing all this with 'you're own time ' to bring us all something that makes us think and introduce me to your wonderful world. I bow down even to a little shake, rattle n' roll .

[@OCDHIFiGuy]

@@petergordon931 right on Peter. Thanks.....