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Philips EM6721 BALANCED Electret, anyone knows them? - Page 3

post #31 of 47

hmm curious how would I go about that I do have a multimeter but at what points do I check that?

 

Thanks for the "LIKE" do I need to finally sign up to that "Friendface"  now.

 

That was a reference to the excellently funny IT Crowd episode.


Edited by nick n - 8/26/12 at 5:09pm
post #32 of 47

Just whip out your LCR meter, the one that does inductance, capacitance and resistance.

 

Well, you could start by simply seeing what the DCR is now that you have "real" transformers in the circuit.

 

Us audio nerds! We so crazeh!

post #33 of 47

this is a very good explenation.to be honest, i dont hear any sound distorsion, just i know that they would sound stronger and brighter on some good amp.

post #34 of 47

this is a very good explenation.to be honest, i dont hear any sound distorsion in amplitide of bass,mids or treble., just i know that they would sound stronger and brighter on some good amp.

post #35 of 47

If the amp you have isn't good, get a good one. You'll need a speaker amp capable of at least 33 watts per channel.

post #36 of 47

A little update. But not so little in the comfort and improvement part. beerchug.gif

In the process of getting replacement pads for the Superlux 662F mod, I found some absolutely excellent soft pads from a Creative Soundblaster World Of Warcraft headset. I HAD to get more they are simply one of the softest most comfortable pads I have yet tried available for purchase i mean, I roll my own often .

Available on Amazon for $15.

 

I'll be using them from now on if it fits the application desired, and I don't feel like rolling my own leathers.

Here's the second set I just got today installed.

You can see the stock pad placed just behind it so these are slightly taller yet pretty much the same opening, and after they "comfort-fit" themselves by melting onto the side of your head they can't be much taller than the stock ones.

Try a set of these on something if you can.

 

I can't stop looking at them  and pushing them. " Please .Don't squeeze the charmin ! " ( some of you might have to look that last reference up )

 


Edited by nick n - 9/21/12 at 12:02am
post #37 of 47

wow. they look amazing!! just like they are new. i got old ones from end of 80's

post #38 of 47

The pads look good and the price is right. Thanks for discovering/sharing (there should be a word for that) them. Do they have the gravitas to hold bass in and keep bass backwave out?

post #39 of 47

What are the dimensions of these pads, Nick?

post #40 of 47

I will copy this one post from the Superlux thread I made.

 

 

Quote:
Originally Posted by nick n View Post

hmm i dunno here are the measurements from the stock 662 pads.

 

the rear part of the pads that sits on the baffle of the stock pads is 105mm, these WOW ones should be~100mm.

 

Pretty sure the WOW pads are on Amazon under "Sound Blaster World of Warcraft Headset Ear Cushions"

yep $15

 

Product Dimensions: 3.9 x 3.9 x 2.2 inches

2.2 inches is the center opening 

~ 3/4 inch height

3.9 inches diameter

 

 ~52 mm center opening

~ 23-25 mm height

~100 mm diameter

 

Yes so far they do a great job of sealing, no question there.


Edited by nick n - 9/23/12 at 12:11am
post #41 of 47

Bit of an update . Had some different pads I ordered show up, so as I was walking by the Headphone cabinet these caught my eyes and had to be finalized.

Needed to bring up them up to a higher standard, specifically in the bass levels.

 

There's a couple things that are important in the end here.

* The seam along the cup to baffle join has a few notched out vents maybe 5 or 6 per cup, so I sealed the entire perimeter of that joint , including those notched vents , with black electrical tape - you can't even notice it.

 This should stop any bleedout ( yes it did ) and bump up lower regions.

* Next the Creative pads seen earlier were swapped out in favour of new Shure 550 ones, lower profile same softness and also down to around a 33mm opening.

* Placed a disc of black Creatology felt in each pad opening.

 

Bass now sits about neutral, but it's a really nice neutral.

 

Everything else still stands for mods. I doubt anyone would replicate this since it is number of very particular materials, cables included. Can't see any other way of getting here with alternate stuff or substitutions honestly.

 

Something of interest possibly to someone besides me and a few scant others.

Final mod pic with the pads.

 

I had to stop and think " what do I have on again?" I was lost in the music and they sounded really good I forgot what they were, which is a good thing considering what is on hand here to compare them to.

 

Also just for curiosity, Philips had a Dynamic Driver version of this as well, exact same housing and headband, apparently it sounded half decent so be on the lookout if you dig the look on these as much as I do. I believe it was Tan/ Brown in colour


Edited by nick n - 5/18/13 at 8:21pm
post #42 of 47
Quote:
Originally Posted by nick n View Post

Bit of an update . Had some different pads I ordered show up, so as I was walking by the Headphone cabinet these caught my eyes and had to be finalized.

Needed to bring up them up to a higher standard, specifically in the bass levels.

 

There's a couple things that are important in the end here.

* The seam along the cup to baffle join has a few notched out vents maybe 5 or 6 per cup, so I sealed the entire perimeter of that joint , including those notched vents , with black electrical tape - you can't even notice it.

 This should stop any bleedout ( yes it did ) and bump up lower regions.

* Next the Creative pads seen earlier were swapped out in favour of new Shure 550 ones, lower profile same softness and also down to around a 33mm opening.

* Placed a disc of black Creatology felt in each pad opening.

 

Bass now sits about neutral, but it's a really nice neutral.

 

Everything else still stands for mods. I doubt anyone would replicate this since it is number of very particular materials, cables included. Can't see any other way of getting here with alternate stuff or substitutions honestly.

 

Something of interest possibly to someone besides me and a few scant others.

Final mod pic with the pads.

 

I had to stop and think " what do I have on again?" I was lost in the music and they sounded really good I forgot what they were, which is a good thing considering what is on hand here to compare them to.

 

Also just for curiosity, Philips had a Dynamic Driver version of this as well, exact same housing and headband, apparently it sounded half decent so be on the lookout if you dig the look on these as much as I do. I believe it was Tan/ Brown in colour


So the Shure pads are in the Creatives are out?

post #43 of 47

yeah  simply too far from the ear and too much open ear space there. Smaller opening definitely helps the bass levels.

post #44 of 47
Quote:
Originally Posted by nick n View Post

yeah  simply too far from the ear and too much open ear space there. Smaller opening definitely helps the bass levels.


Things that make one go hmmmm.

 

I really should try out the Shures they seem to be recommended for just about everything. Pity my preference is for velours.

post #45 of 47

these are quite a different profile from the Shure 840 though.

 

550 specs here.http://www.head-fi.org/t/111193/orthodynamic-roundup/20235#post_8553903

 

the Sennheiser 25's or AKG 141/2 have velour pad options I think that are of the smaller variety might work well for you


Edited by nick n - 5/19/13 at 12:31am
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