IanAS said:I should think this is done for cost saving.
Very, veeeeery wrong.
It's a one-piece thing, including the basket.
This speaker doesn't vibrate or have air gaps when playing, and you won't find loose screws on the woofer.
Ian, everything here was done with a purpose, not for cost saving.
Read something about Epos, if you want.
IanAS said:1st order X-over, hmmm, I'm not so sure that's all that good really. Sure there is a big advantage in not having x-over components messing up the signal, but steep x-over slopes have their advantages. Bass mid drivers tend to have peaks in the 5kHz region than need removing.
Ian, I know that since I was a kid. 😀
No, seriously, these speakers measure flat.
Yes, I know, it would be VERY hard to find a woofer like this.
IanAS said:The Epos probably cost very little to make, like all commercial speakers, as many corners are cut as possible or they can't sell them at a price that will actually sell, never mind make Epos, the dealers and shops a good profit.
I know that, but I like how these speakers sound, there's nothing to do about that.
Call it my fetiche, whatever.🙂
Re: opa
I cant really agree with you that the 227's are good opamps, switching them for 134 made a world of difference.
btw, hallo PK, du fant frem ser jeg..🙂
Russ White said:
Don't limit yourself....
The OPA227 and OPA228 are also excellent choices.
Also the new RC4560 is not half bad.
I cant really agree with you that the 227's are good opamps, switching them for 134 made a world of difference.
btw, hallo PK, du fant frem ser jeg..🙂
carlosfm said:It's a one-piece thing, including the basket.
Read something about Epos, if you want.
from the EPOS website about the new version of the EP12 which was apparently a slight upgrade from the EP11:
"Still a two way bass reflex design, the M12.2 features a 150mm woofer complete with phase plug. Replacing the plastic chassis used in the original M12 is the all new Epos die cast chassis. The tweeter used in the M12.2 is a 25mm aluminium dome with ferrofluid cooling and neodymium magnet system."
Perhaps they felt the one piece plastic front panel / speaker basket was not so good?
carlosfm said:I like how these speakers sound, there's nothing to do about that.
This is the bottom line though, if you like them best that's the whole point.
I did audition a pair of Epos in 1993 that had what I considered at the time to be a very good mid range and stereo.
carlosfm said:
This means small rooms, small speakers, big rooms big speakers.
Hmm, I think this is something of a myth, or at least a generalisation.
As an anecdote... when I worked in a hi-fi shop for a brief while, the tightest bass and most deep and hard hitting and dynamic bass (I must add!) came from the largest speakers I had heard in the [tiny] listening room. You cannot generalise too much.
Furthermore, I'm not sure it's even to do with alignments, drive unit size, cabinet size, or low frequency cut-off, but a complex combination of lots of factors, including that it can be more difficult to accomodate a larger speaker owing to it's sometimes flatter response, which excites room trouble more easily.
The only reason small speakers tend to work in smaller rooms is because people put them near the wall and reinforce the bass using at least one set of strong axial room modes. Also, the 'cabin gain' effect is greater in a small room. These factors are nullified by small speakers' typical inability to provide strong bass.
Ok, so that's my [partial] hypothesis, shoot it down if you like. 😀
I personally listen in a small room, but does that mean I'm limited to reduced bass extension and small speakers? Maybe it should, mabye not. Maybe room treatment and careful positioning of listener and speakers is extra critical in a smaller room. (I use 2 way twin 6.5" driver speakers and a giant 15" sub, which operates below all room modes, so can sit in a corner!).
Of course a good source will help to appreciate a given set of speakers! Sometimes this is brought home by things like changing to OPA627 in the CD player... This improved the bass without me changing the room 😉
And that little snubber thing... took a boring sounding amp and gave it bass dynamics! Yeh, I know it sounds crazy, but...
And going from no pre-amp to pre-amp - the bass gets more dynamic and exciting again (at the expense of lots of other stuff).
And that little snubber thing... took a boring sounding amp and gave it bass dynamics! Yeh, I know it sounds crazy, but...
And going from no pre-amp to pre-amp - the bass gets more dynamic and exciting again (at the expense of lots of other stuff).
A litte my additon for opa627 knowledge treasury🙂.I tested many opa627ap,opa627au,opa627bp,sonically they are identical,at least I was unable to find sonic difference between high and low grade.But what is interesting ,in I/V opa627b is better.Not much,but I can hear it.
IanAS said:Perhaps they felt the one piece plastic front panel / speaker basket was not so good?
No, that's not the case.
Now they are cutting costs.😀
The new speaker is cheaper than the previous it replaces.
SimontY said:As an anecdote... when I worked in a hi-fi shop for a brief while, the tightest bass and most deep and hard hitting and dynamic bass (I must add!) came from the largest speakers I had heard in the [tiny] listening room. You cannot generalise too much.
That's more of an exception than a rule, but it can happen.
Sealed speakers will behave better, and bass-reflex speakers with the port on the front pannel can be less sensitive too.
Take my "generalization" (you're right) as a basic rule, not as a law.
SimontY said:I personally listen in a small room, but does that mean I'm limited to reduced bass extension and small speakers?
No, I didn't say that.
Small speakers in small rooms produce good bass.
Wall and corner reinforcement tends to muck up the sound, so you must still stay clear of them.
SimontY said:Maybe room treatment and careful positioning of listener and speakers is extra critical in a smaller room.
If you pick the right speakers for your space, you may not need room tratment.
Room treatment is mandatory for those who use big floorstanders on tiny spaces.
Instead of choosing the right components for a start, some try to salvage the sound with room treatment.
A normal home living room is not a bad thing to listen to music.
Naked rooms like demo rooms on distributors do need treatment.
SimontY said:(I use 2 way twin 6.5" driver speakers and a giant 15" sub, which operates below all room modes, so can sit in a corner!).
The sub may be ok in a corner (mine is too) but if your space is small, when the musical (or film) content goes really low in frequency, the sound wave is too big for your room.
It's like listening inside the box.
The box is the room.😀
Very "car audio".😎
B-Grade
Yeah, B-grade is better in IV, much to my amazement
😱
AnthonyAsh said:A litte my additon for opa627 knowledge treasury🙂.I tested many opa627ap,opa627au,opa627bp,sonically they are identical,at least I was unable to find sonic difference between high and low grade.But what is interesting ,in I/V opa627b is better.Not much,but I can hear it.
Yeah, B-grade is better in IV, much to my amazement
😱
SimontY said:Of course a good source will help to appreciate a given set of speakers! Sometimes this is brought home by things like changing to OPA627 in the CD player... This improved the bass without me changing the room 😉
And that little snubber thing... took a boring sounding amp and gave it bass dynamics! Yeh, I know it sounds crazy, but...
And going from no pre-amp to pre-amp - the bass gets more dynamic and exciting again (at the expense of lots of other stuff).
See what I mean?😀
AnthonyAsh said:A litte my additon for opa627 knowledge treasury🙂.I tested many opa627ap,opa627au,opa627bp,sonically they are identical,at least I was unable to find sonic difference between high and low grade.But what is interesting ,in I/V opa627b is better.Not much,but I can hear it.
So you sold the right one on Ebay for my purpose 😉
Do you sell those modules all the time? I might need to try some for my pre-amp next, maybe..
SimontY said:
So you sold the right one on Ebay for my purpose 😉
Do you sell those modules all the time? I might need to try some for my pre-amp next, maybe..
Send me email to anatoliy(nospam)gmx.com
XELB said:That's amazing![]()
Do you have photos ?
My Epos 11 speakers, and my (diy) sub.
Attachments
I received an e-mail from a friend today.
He has just bought a pair of mint Epos ES11 speakers on ebay.
The seller sent him some photos, ready to package from England to Portugal.
Oh, cost was 350 GBP.
My friend sweared me a month ago he would buy a pair of these after listening to mine.
He has been auditioning to speakers at distributors, and he has $$$$ to spend, but he has not been very convinced.
He claims to have heard the sound of his life on my room, so he just had to buy Epos, even if they came from China.
Here they are, they must be travelling now.
Aren't they sexy?
😀
He has just bought a pair of mint Epos ES11 speakers on ebay.
The seller sent him some photos, ready to package from England to Portugal.
Oh, cost was 350 GBP.
My friend sweared me a month ago he would buy a pair of these after listening to mine.
He has been auditioning to speakers at distributors, and he has $$$$ to spend, but he has not been very convinced.
He claims to have heard the sound of his life on my room, so he just had to buy Epos, even if they came from China.
Here they are, they must be travelling now.
Aren't they sexy?

😀
Attachments
carlosfm said:
My Epos 11 speakers, and my (diy) sub.
They remmaind me of ATC speakers

And if they play (at least as) well as the ATC, you have really nice speakers 🙂
An externally hosted image should be here but it was not working when we last tested it.
Your subwoofer looks really nice 😉
Do you use it because the speakers lack of bass or your room is big ?
XELB said:Your subwoofer looks really nice 😉
Do you use it because the speakers lack of bass or your room is big ?
My speakers don't have lack of bass in my room and with my system.
Sometimes I turn the sub on to get some TIGHT body massage.
Ben Harper punching on my stomach is good for the stress.😎
Btw, the sub is a sealed enclosure, and I managed to integrate it very well with my speakers.
I can't detect if it's switched on when listening (except for the blue led😀 ), it is only when the music goes really deep that it comes into play, but it's a very well integrated.
The sub is not to be used as a louness switch, it is just to extend the frequency response.
This is tuned for (stereo) music listening, I don't care about AV and fireworks.
I like tight and fast, realistic bass.
XELB said:And if they play (at least as) well as the ATC, you have really nice speakers 🙂
ATC speakers are very reputed.
I've heard those on the AudioShow singin' like a kitchen radio (no kidding!), connected to a miserable system and with a placement in room like if they were some piece of furniture.
Seriously, there is too many incompetence out there on the distributors.
Some guys are selling hi-fi today, yesterday they were selling lingerie on a shopping mall.

I also hate "uncontrolled" bass.... It makes me sick
I like it punchy and fast as a good battery should sound 😎
Have you used LM3886 in your Subwoofer ?
I have just bought one LM3886 chip today( 4,5€).
I will use it to make some tests for my future amp.
I already tested the PSU, I will go to unregulated with the snubber and one 340VA 2x35V trafo.
I don't know if I'll use two LM3886 bridged for each channel or use the SUSY concept of Mr. Pass.
If I go to SUSY I will have to convert the single ended signal to balanced....
I will run some tests and "see" what I like the most.
By the way, thanks to you I just add the snubber to another amp! This is like medicine 😀
I will test it loud and clear tomorrow morning.

I like it punchy and fast as a good battery should sound 😎
Have you used LM3886 in your Subwoofer ?
I have just bought one LM3886 chip today( 4,5€).
I will use it to make some tests for my future amp.
I already tested the PSU, I will go to unregulated with the snubber and one 340VA 2x35V trafo.
I don't know if I'll use two LM3886 bridged for each channel or use the SUSY concept of Mr. Pass.
If I go to SUSY I will have to convert the single ended signal to balanced....
I will run some tests and "see" what I like the most.
By the way, thanks to you I just add the snubber to another amp! This is like medicine 😀
I will test it loud and clear tomorrow morning.
XELB said:Have you used LM3886 in your Subwoofer ?
No, I used two paralleled OPA549 chips.
XELB said:I have just bought one LM3886 chip today( 4,5€).
I will use it to make some tests for my future amp.
I already tested the PSU, I will go to unregulated with the snubber and one 340VA 2x35V trafo.
Great, prepare yourself to blow the chip and spend another 4.5€.😉

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