Philips SHE3580 IEM review--how can something sound so good for $10???
Jul 9, 2011 at 1:12 PM Thread Starter Post #1 of 1,072

Joe Bloggs

Sponsor: HiBy
Member of the Trade: EFO Technologies Co, YanYin Technology
His Porta Corda walked the Green Mile
Joined
Oct 21, 2001
Posts
12,593
Likes
5,503
Location
Hong Kong and Melbourne
Edit 2013-11-17: This review is not an endorsement by FiiO.  I had no working relationship with FiiO when I wrote this piece.  And I will continue to write way-out-there stuff here under the "not endorsed by FiiO" disclaimer
tongue.gif

 
Edit 2012-07-16: The SHE3580 is getting replaced by its successor the SHE3590.  I believe the only difference between them is the shell colours.
 
Edit 2011-12-26:  I know I kind of implied in my review that they need EQ to sound great but you know what?  It may all be down to personal preference.  AFAICT these have a V shaped sound signatrue but I always have trouble picking out vocals from instruments whichever phones I use so this may just be personal bias kicking in.  I showed these to my brother and let him hear it with and without my "setting for everybody" EQ and he even preferred the original sound!
 
Then I tried customizing an EQ to his ears ala PiccoloNamek's EQ thread and found that for his ears there's very little that needs be changed.
 
He didn't say much about the sound but he did ask if he could keep the pair I gave him to do the tests on
etysmile.gif

 
Seriously, these were the phones that got me back into music after a years long hiatus.  And even after I got back into music the broken Etymotic ER-4P I had sat for months in disrepair.  I was wondering what better sounds I would hear from them... but not wondering too much.
cool.gif
Finally I sent them in for repair, and after they came back, I didn't hear anything special that would sway me from the $10 Philips!  The Ety's treble was smoother... but the Philips' treble was even smoother with my custom EQ dialled in (again, YMMV regarding the necessity to EQ).  And the bass... is earthshakingly deep.  And the fit and comfort... these Philips just pop right in my ears and stay there.  I was never comfortable with the Etys until I cannibalised a pair of tips from an extra pair of the Philips I wasn't using and adapted them onto the Etys using decored T-100 comply tips as an adapter.
 
Then the Etys broke again... for the fourth time for me.  This time one of the channels went intermittent and when I tried fixing it by pulling and reconnecting the plug to the bud, the socket came out with the plug after the 3rd try or so Meanwhile, the original pair of SHE3580 I got before I sent the Etys for repair are still going strong... taking more abuse than the Etys with nary a scratch (well, the heatshrink over the I-connector came off when I tried pulling it out of a particularly stubborn socket, but I suppose that can be superglued back on... not that I bothered.  It still fits snugly over the I-plug and only comes off when I pull particularly hard.  I take that as a sign that I have to be more careful pulling the plug out of this particular socket.  The wiring inside the I-connector is potted and the pot can be pulled with no worries over stretching the wires inside).  They have also taken blasts of accidental high volume noise from my computer's headphone out and aged like a fine wine--the bass just got deeper.
 
Finally let me quote why I liked these so much in the first place from another thread:
 
Joe Bloggs said:

  Of course I would never have bothered to do any of that if I did not hear potential in these phones in the first place.  The 5 things counting for it were
1. solidly constructed, completely closed enclosure with no ports; closed speaker design means no flabby ported mid-bass
2. metal grille over drivers instead of fibre plug means sound reached ear more directly
3. incredibly precise channel matching, 2 pairs of $10 SHE3580 I own each have better matched L/R drivers (as I heard from sine sweeps throughout the frequency range) than the Etymotic ER-4Ps I have now!
4. incredible bass and treble extension, treble going beyond the limits of my hearing and bass still going strong way down at 30Hz
5. just a general feeling of "these actually sound pretty good" when I first paid $10 for them and plugged them in my ears, and moments where I got this nagging suspicion that I was hearing things I never even heard on the etys.


--------------------------
 
Hi, it's been nearly ten years since I joined Head-Fi, but I've been so far out of the loop these last few years that I've practically let my head-fi gear rot--my Ety 4Ps, the last piece of working head-fi gear I was holding onto, had one side go bad last year.  Since then, I have been going without any hi-fi grade listening gear.  Don't ask me why I didn't send them in for repair; I don't know.  Maybe I just wasn't listening to enough music to justify the repair cost.  I also had some, er, spouse-related financial problems which only affected hobby gear :wink:

Anyway, fast forward to about a week ago.  I've recently started listening to more music again, using the subject of this review, the Philips SHE3580 canalphones.  On a whim I visited head-fi for the first time in a long time, and stumbled upon this thread:

http://www.head-fi.org/forum/thread/413900/how-to-equalize-your-headphones-a-tutorial

This thread introduced me to a concept I'd never considered:  that standing waves can form between headphones (especially canalphones like I've been using) and the eardrum, causing comb filtering of the music signal just like a badly treated room.  Someone who really should know his acoustics theory seems to be on board with the idea.  Subsequent experimentation with a parametric EQ (I'm no stranger to equalizers, but a parametric is a first for me) has improved the sound of these $10 canalphones to the point where I think it's worth my effort to write a review about them.  A LONG review (for me anyway), because they just sound that good now--and I really wish more people with headphones at any price would give this a try.  (Linkwitz did it for his $300 etys, for example)

General
Past head-fi gear:
Etymotics ER-4P (returned from repair for the third time, now sitting there gathering dust because these just sound that much better edit: broken again, they lasted less than half the time coming back from repair than my original pair of SHE3580 have been trucking on (most of this year).)
Sennheiser HD580 (now with one driver gone bad--cable fault; waiting for cable replacement)
Amp: Porta Corda (volume pot unbalanced; not used in this review)
 
I also got to audition other head-fi in a Hong Kong head-fi meet many years ago, including a Sony R10 driven by an ASL Twin Head.

Philips SHE3580 bought for: ~$11 (85 Hong Kong dollars) about 6 months ago

A picture of the packaging, to identify them in shops:

 
Specs:
Frequency response: 12 - 23 500 Hz (I'd believe the top figure, if not the bottom one) (edit: looking at measurements it seems to be the other way around, although it seems normal for the treble to be rolled off in these measurements:) (and normal for the FR look like a roller coaster...?)


Source: http://translate.google.com/translate?hl=en&sl=ko&tl=en&u=http%3A%2F%2Fgoldenears.net%2Fboard%2F859696
Impedance: 16 ohm
Maximum power input: 50 mW
Sensitivity: 102 dB
Accessories: silicone single-flange tips (3 sizes)
Build: these are some of the tiniest earphones I've seen.  The sound chamber is a tiny teardrop-shaped piece of plastic, and it looks like the drivers are slightly angled relative to the nozzle.  The nozzles are covered with a metal mesh, no foam.  Thin, rubbery cable causes little microphonics but is tangle-prone.  I try to avoid tangles by winding the phones into a coil before pocketing them.  The very short stem makes wearing over-the-ear easy (but I just wear them straight down).
 
These come in 6 different colours with different model numbers, SHE3581 (white), 3582 (light blue), 3583 (pink), 3584 (dark blue), and 3585 (red), for those of you who care about such things...

Comfort: very comfortable for me, with the small tips these just about disappear when I put them on.  Like most low-end canalphones, these tips seal just over the entrance to the ear canal, which I find more comfortable than the tips that came with my etys, which seal inside the canal.

Sound
Out of the box (no modifications)
These phones sounded pretty good out of the box compared with the stuff I've been going through after the etys broke down.  Detailed treble, punchy but not overbearing bass.  But they do have a pronounced v-shaped curve, sacrificing the midrange.  I have trouble picking out vocals from energetic instruments, whatever phones I listen with, and these are certainly not an exception.
 
Edit: recently I let my brother try these phones.  And after tweaking the EQ for him, it seems he prefers the sound almost stock.  The bass and treble emphasis, if they indeed be that, seem just right for him.

With graphic EQ (10 bands)
Unlike the good old days of the EX70EQ, all my computers and music players (er, my phone) now come with 10-band EQs that can conveniently alter the sound in real time, so that's what I started playing with.

After 2 months of playing by ear, I settled on something like this: (this is the EQ module from PowerAMP, for those of you looking for an equalizer on Android)

I don't put any of the sliders above 0 to prevent output clipping, and as far as I can determine, the sliders bottom out at 12dB.  A graph like this serves to quantify how a pair of phones sounds to me (eg the mids at 500Hz sound about recessed compared to the treble at 4kHz), but as you will see, there's a better graph coming.

With this setting, I could play my old favorite songs and not feel like I'm missing too much compared to the etys.  But I felt there was still room for improvement.  If I dialled down the treble too much, things sounded dull.  If I dialled it back up, there would be too much sibilance.  In between, there would be a compromise zone where the sound is a bit dark overall but the sibilance still jumps out at times.  Detail-wise I kept picking up hidden cymbals or triangles that I never noticed even with the etys but I'd put this up to the phones' extra emphasis on the upper treble.

Enter parametric equalization
Introduction and original guide
http://www.head-fi.org/forum/thread/413900/how-to-equalize-your-headphones-a-tutorial
 
My own updated guide (in progress)
http://www.head-fi.org/t/615417/how-to-equalize-your-headphones-advanced-tutorial-in-progress
 

I used the Electri-Q VST plugin (linked in the guide) and pretty much followed the guide by PiccoloNamek on compensating for the headphone-eardrum "room resonance" effect, with the exception that I only tried to smooth out the peaks above 1kHz, not make all frequencies sound "the same".  Rathing than using pink noise, I also found it easier to do this by creating sine tones at the peak and trough frequencies (using a sound editor like Audacity) and comparing loudness to adjust the EQ.  Another technique is to create sine sweeps (e.g. using the Generate "chirp" function in Audacity) from one peak to the next (e.g. from 2950Hz to 5000Hz in my case); with fixed start and end reference points it becomes easier to know which frequency you're at when you hear more peaks in between that you haven't evened out.

After evening out the peaks (using the sharp dips in the graph above 1kHz) it becomes a matter of approximating the graphic EQ I've been using before, listening to music to test the settings out.  But now I'm not limited to 10 bands--in fact I can put in any number of adjustments, centered at any frequency, with an arbitrary level of selectivity (ie the Q factor).  At first I was bewildered by the limitless choices available, but then I found a really useful tool--right click on a control point and in the context menu that appears, there is a "bandpass" item at the bottom.  Click that, and the control point you've selected temporarily turns into a bandpass filter--filtering out all frequencies except the ones you're affecting with this control point.

If you move this control point around you can now hear different frequencies in isolation in real time--so say you hear a boominess in the bass that is colouring vocals, you can move the point around until you find exactly the frequency around where you hear nothing but "boom boom boom boom".  Now uncheck the "bandpass" item to turn your control point back to normal and you can remove just this boominess by lowering the gain at this point.

Results
To put a long story short--smoothing out the resonant peaks really opened up the treble detail.  Now I have the average treble level much higher than it was when I was using graphic EQ (though still several dBs down compared to stock), and the sound is bright in the best sense--unbelievably detailed yet not fatiguing at all.  Electric guitars from Iron Maiden are forward in an entirely believable and enjoyable manner, drums and transients from  well-mastered recordings are so tight and impactful that it feels like my eardrums are meeting in the middle of my head.  However woodwinds and trumpets from Kannazuki No Miko OST are a bit too shrill.  I would say I am hearing Grados in IEM form, except I've never heard Grados.  I think these phones' original sensitivity to treble and lack of foam over the nozzles really helped them out here.

Tweaking the EQ by ear, it appears a low shelf starting ~200Hz and a further dip at ~100Hz really helps to remove boominess and make the bass sound tighter.  I don't know how a pair of canalphones with possibly the smallest drivers and sound chamber in the market (for dynamic type) and no ports anywhere to be seen manages to resonate in the bass, but it appears that these phones have a midbass hump just like most budget phones, albeit smaller than a few I've heard.  Tweaking the EQ does not totally remove this looseness and this would be my chief complaint that does not seem amenable to EQ, albeit a small one considering the price.  On classical music I prefer to lessen the bass cut and leave the 100Hz hump as is as it seems to give a realistic resonance to violins.  Make of this what you will.
 
Edit: rather than calling it a midbass hump, it seems these phones just go stronger and stronger as you go down the bass registers.  Like this:

Source: http://translate.google.com/translate?hl=en&sl=ko&tl=en&u=http%3A%2F%2Fgoldenears.net%2Fboard%2F859696
 
 
The other sore point was the soundstage.  I've never heard much of a soundstage with headphones, especially canalphones, even the Etys (I did not remember the Senn HD580s being particularly impressive to me in this regard, either), but I've never minded the close in-your-face (more like in-your-head) presentation that results.  But with all the descriptions of 3D soundstaging I hear from many here I started looking for soundstaging with my music and found it lacking as usual.

I tried Dolby Headphone
http://www.head-fi.org/forum/thread/555263/foobar2000-dolby-headphone-config-comment-discuss
but found it coloured the sound too much even with RPGWizard's settings, and I did not find the improvement in soundstage (not much) to be worth it.

For now I have settled on this simple crossfeed plugin
http://www.naivesoftware.com/software.html

Left on default settings, it gave a nice improvement to the front-back projection of the soundstage without colouring the sound or narrowing the stage much left-to-right.  Instruments now appear to be projected just out of my head on some recordings.  I suspect that the effect may be more effective on circumaural headphones like my Senn HD580s as the HRTF model may be based on circumaurl headphones instead of canalphones.  It would be nice to find a crossfeed plugin that stated exactly which HRTF model it uses: circumaural, over-the-ear, earbud or canalphone.  Anyway, I look forward to reconditioning the HD580s to try out the effect.

Overall

I find that the riced out SHE3580 gives up nothing against my memory of the $300 Etymotic ER-4P at its best with no alterations.  On the other hand, I'm sure the 4P can benefit similarly to the SHE3580 from EQ to remove resonances.  (Siegfried Linkwitz thought so too) I'm going to send the 4P in for repairs ASAP and post my impressions on that when they return.

On the other hand, I wonder if I will ever find tips for the 4P that are nearly as comfortable as the tips for these cheap canalphones that seal just over the ear canal entrance rather than inside the canal...
 
Here's the EQ settings I made for Electri-Q for download (you'd need to tweak it to fit your own ear canal resonances even if you have the same phones):
http://www.mediafire.com/?f71df8vsrbkqh3b
 
HiBy Stay updated on HiBy at their facebook, website or email (icons below). Stay updated on HiBy at their sponsor profile on Head-Fi.
 
https://www.facebook.com/hibycom https://store.hiby.com/ service@hiby.com
Jul 9, 2011 at 3:07 PM Post #3 of 1,072
That's the equalizer module from PowerAMP.  Yeah, took me a while to find when I first got my LG Optimus 2X too
biggrin.gif

 
Thanks for the question.  I will mention it in the review.
 
HiBy Stay updated on HiBy at their facebook, website or email (icons below). Stay updated on HiBy at their sponsor profile on Head-Fi.
 
https://www.facebook.com/hibycom https://store.hiby.com/ service@hiby.com
Oct 31, 2011 at 1:04 AM Post #4 of 1,072
Have been listening to these buds for several more months now and I'll be damned if these buds don't have the strongest, deepest bass of anything within $100 (they didn't get that way until after a week or so of break-in with bass-heavy music and proper wearing technique, using one hand to pull at the ear as you stuff the bud in with the other.).  I listened to a sine sweep on it and at moderate loudness it's basically flat from 200Hz down to 30Hz with no perceptible humps or dips.  When you consider that the human hearing actually gets less and less sensitive (in the order of 20+dB from 200Hz down to 30Hz) that means these buds just keep going stronger and STRONGER as you go deeper into the bass.  These buds are now my go-to phones for listening to anything that gets the blood pumping.  And with the mid dip and treble uneveness tamed using the parametric EQ there's simply nothing I find wanting from these phones anymore.  They're the only thing I listen to when I'm at the computer, except for the loudspeakers when I want a more visceral feeling. (but a sub that gives the kind of bass I hear with the SHE3580s would literally shake the house down)
 
I now set anything below 100Hz down at least -10dB unless the recording is unbalanced or I really want my blood to boil!
 
The ER-4P have long since come back from repair, and are sitting there gathering dust.  They don't really need any help with the mids and trebles, but the bass is just so anemic compared to the SHE3580s that I'd be afraid of blowing up the drivers (thus breaking them for like the FOURTH time) if I tried to make their bass sound like anything I get from the SHE3580s.  I never considered myself a basshead before but the SHE3580 have converted me by going Beyond the Impossible.  I've tried comply tips on both the SHE3580 and Etys and they didn't change the sound signature much on either (monstrous bass as usual on the former, anemic as usual on the latter), so the seal shouldn't be the issue here.
 
The only competition to my ears these have right now are a pair of Nakamichi NEP-A500 that I got for free with another mobile phone purchase (they can apparently be had for ~$100, if you're in the right part of the world (somewhere near Japan)).  These sound better than either the Etys or the SHE3580 unEQed, with much better bass than the etys (still can't touch the SHE3580 in that department), more prominent mids and smoother highs than the SHE3580.  That said, I'm at such a happy place right now with the SHE3580s on my computer right now that I haven't got around to testing the A500 on the computer to see what improvements can be made.  And the A500 are a bit less comfortable, its tube being one size bigger (comply T500 size) than the SHE3580 (T400), which is 3 sizes bigger than the etys (T100).  With most tips the etys go in too deep inside my ears whereas the A500 stretches my ears a bit too much; the SHE3580 tube is the Goldilocks size for me.
 
HiBy Stay updated on HiBy at their facebook, website or email (icons below). Stay updated on HiBy at their sponsor profile on Head-Fi.
 
https://www.facebook.com/hibycom https://store.hiby.com/ service@hiby.com
Oct 31, 2011 at 2:41 PM Post #5 of 1,072
Thanks for updating your thoughts on these.  What type of music do you primarily listen to?
 
Quote:
Have been listening to these buds for several more months now and I'll be damned if these buds don't have the strongest, deepest bass of anything within $100 (they didn't get that way until after a week or so of break-in with bass-heavy music and proper wearing technique, using one hand to pull at the ear as you stuff the bud in with the other.).  I listened to a sine sweep on it and at moderate loudness it's basically flat from 200Hz down to 30Hz with no perceptible humps or dips.  When you consider that the human hearing actually gets less and less sensitive (in the order of 20+dB from 200Hz down to 30Hz) that means these buds just keep going stronger and STRONGER as you go deeper into the bass.  These buds are now my go-to phones for listening to anything that gets the blood pumping.  And with the mid dip and treble uneveness tamed using the parametric EQ there's simply nothing I find wanting from these phones anymore.  They're the only thing I listen to when I'm at the computer, except for the loudspeakers when I want a more visceral feeling. (but a sub that gives the kind of bass I hear with the SHE3580s would literally shake the house down)
 
I now set anything below 100Hz down at least -10dB unless the recording is unbalanced or I really want my blood to boil!
 
The ER-4P have long since come back from repair, and are sitting there gathering dust.  They don't really need any help with the mids and trebles, but the bass is just so anemic compared to the SHE3580s that I'd be afraid of blowing up the drivers (thus breaking them for like the FOURTH time) if I tried to make their bass sound like anything I get from the SHE3580s.  I never considered myself a basshead before but the SHE3580 have converted me by going Beyond the Impossible.  I've tried comply tips on both the SHE3580 and Etys and they didn't change the sound signature much on either (monstrous bass as usual on the former, anemic as usual on the latter), so the seal shouldn't be the issue here.
 
The only competition to my ears these have right now are a pair of Nakamichi NEP-A500 that I got for free with another mobile phone purchase (they can apparently be had for ~$100, if you're in the right part of the world (somewhere near Japan)).  These sound better than either the Etys or the SHE3580 unEQed, with much better bass than the etys (still can't touch the SHE3580 in that department), more prominent mids and smoother highs than the SHE3580.  That said, I'm at such a happy place right now with the SHE3580s on my computer right now that I haven't got around to testing the A500 on the computer to see what improvements can be made.  And the A500 are a bit less comfortable, its tube being one size bigger (comply T500 size) than the SHE3580 (T400), which is 3 sizes bigger than the etys (T100).  With most tips the etys go in too deep inside my ears whereas the A500 stretches my ears a bit too much; the SHE3580 tube is the Goldilocks size for me.



 
 
Nov 1, 2011 at 11:29 AM Post #6 of 1,072
Mostly metal (eg Iron Maiden) and game and anime soundtracks (which themselves cover the gamut from classical to J-pop to metal again)
 
E.g. this epic level from the ancient RTS game Homeworld is set to a choral rendition of Adagio for Strings by Samuel Barber
 
Then there's Total Annihilation, which won at least 3 Best Music awards in 1997.  (that reminds me: have to get a hi-fi version of the intro song somehow--it's not recorded as audio on the CD unlike the other in-game music)
 
The examples make it sound like I'm only listening to classical
tongue.gif
I guess that actually makes up about 50% of what I listen to right now.
 
HiBy Stay updated on HiBy at their facebook, website or email (icons below). Stay updated on HiBy at their sponsor profile on Head-Fi.
 
https://www.facebook.com/hibycom https://store.hiby.com/ service@hiby.com
Nov 1, 2011 at 12:09 PM Post #8 of 1,072
FWIW I'm uploading two versions of the Electri-Q EQ settings I'm using right now: my actual settings (with treble dips customized to my ear canal resonances) and one with the dips in the treble smoothed over (giving a general treble cut which doesn't sound as good to my ears but should work for most people)
 
My settings:<-click for file

 
Generic settings:<-click for file

 
edit: in order to load the presets, please use George Yohng's VST wrapper instead of foobar's foo_vst plugin to load the Electri-Q VST.
http://www.yohng.com/software/foobarvst.html
 
It runs just about any VST I use better than foo_vst and allows Electri-Q preset files to be loaded and saved properly.  Only drawback is it can only load one plugin at a time, you can still load other VST plugins using foo_vst.
 
HiBy Stay updated on HiBy at their facebook, website or email (icons below). Stay updated on HiBy at their sponsor profile on Head-Fi.
 
https://www.facebook.com/hibycom https://store.hiby.com/ service@hiby.com
Jan 14, 2012 at 12:53 PM Post #9 of 1,072
well for a paultry sum they are MOST DEFINATELT worth it! not as large of a soundstage as my EX600s, but they make up for it with sounding better to me with some very nice clearity, it might be that they have more of a balanced sound, over the 600s and there overly bright treble, so the Phillips bring some better mids to the experience! with still having great treble, and the bass is just super right out of the box, even on par and as impactful as the 600s!
 
I got them here http://www.drugstore.com/philips-music-colors-headphones-blue/qxp306229?catid=185771, and with free shipping when you sign up for a one month free trial of ShopRunner, which you can cancel anytime before they start to charge you any fees? I am going tpo get a few extra of them as long as they have free shipping for some give aways, and they are REALLY VERY VERY NICE!!!!, hhhmmm go figure, great and awesome ears for umder $8.00? what the? finally the universe is out of whack but in a great way!!!!!
 
Feb 12, 2012 at 3:18 PM Post #10 of 1,072
 
Very interesting 3D indeed. Thanks for sharing your findings !
I purchased online a pair of SHE3580.  They should arrive this week
I assume that they are valuable even without EQ
I wonder about any other model from Philips line worth a try
Thanks again
Kind regards,
gino
 
Feb 12, 2012 at 3:22 PM Post #11 of 1,072
can you describe the sound quality with no EQ because i am still in the market for beaters that i can use at the gym
 
Feb 15, 2012 at 3:21 PM Post #12 of 1,072
I got a pair of these based on this and Dsnuts reviews but so far I just cannot seem to get a good seal.  I assume that is what it is as I have seen many comments about the great bass and so far no matter what I have done the cheap buds that come with a walkman have more for me.  So I figure it has to be lack of seal/fit right?  I have run into this problem before with all iem's I have tried and have just about given up due to fit/comfort.   Are there any recommendations anyone has to get a good fit?  Would something like trying Comply foam tips with these make a big difference in comfort/fit compared to the tips they come with?  I'd love to get comfort and good sound out of these as I really want to use iem's so I am still hoping there is something that may work.  Thanks.
 
Feb 19, 2012 at 1:27 PM Post #13 of 1,072
Hmm, comply foam tips expand to fit your ear so could definitely help get you a good seal.  If you do decide to try complys 400 is the size to get.  So you could get T-400 (original) Tx-400 (with wax guard) or Ts-400 (spherical).
 
Also according to Etymotic, try putting your left hand behind your head to pull back on your right ear while putting in the right earbud with your right ear (and vice versa).  This way you may get the eartip further into the ear canal.
 
HiBy Stay updated on HiBy at their facebook, website or email (icons below). Stay updated on HiBy at their sponsor profile on Head-Fi.
 
https://www.facebook.com/hibycom https://store.hiby.com/ service@hiby.com
Feb 27, 2012 at 2:14 PM Post #15 of 1,072


Quote:
By any chance the 3850 would be sold in different regions under the 3750 name? As far as I can see the specs are identical. 



SQ are the same, the diferences can be just in color options.
 

Users who are viewing this thread

Back
Top