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The Centrance HiFi M8 thread - Page 225

post #3361 of 5812
Quote:
Originally Posted by jinbara002 View Post
 

Special message to Todd The Vinyl Junkie.

 

When order Centrance HiFi M8  ship out ? Labour Day holiday already over ..

 

You'll still get it before me...

post #3362 of 5812
Quote:
Originally Posted by ButtUglyJeff View Post
 

 

You'll still get it before me...

And me.

post #3363 of 5812
Quote:
Originally Posted by AndreYew View Post
 

I have no knowledge of Centrance's internal workings, but I have shipped devices of similar complexity before ... What usually happens is that you make a pilot run of about 50 devices. These devices are the final design, but haven't yet been manufactured in any large quantity, so the pilot run is done to shake out problems introduced by mass manufacturing that may not have shown up in smaller batch, custom hand-builds. The manufacturing workflow is what's being debugged here, but you usually discover a couple of bugs here too (like the reversed channel issue in the 4-pin balanced connector). Anything that could go wrong, probably will at the worst time, even things that have worked great in the past.

 

The full run of any device has a lead time (time before the first units start rolling off the line) of 6-8 weeks for most electronic devices, but it could be longer. Most of this time is just getting all of the parts to your manufacturer. Sometimes, it's the stupidest, simplest parts that take the longest like some resistor of a particular value and physical size, and one part can hold up the build for weeks. Once the parts are in, it doesn't actually take that long to make the device: 1 week is conservative. But the hard part is just getting all of the parts you need to the manufacturer.

 

It's not always as binary as this. If there are problems with the pilot, you may want to make another small run to make sure everything is OK before ordering lots of parts and boards. Parts can usually be reused, but if you have a bug on a board, you either toss the board out (very expensive) or you do some manual labor to fix the boards (expensive). The amount of cash you need to spend to buy all the parts to make a run is not small either: a Bill Of Materials (BOM) of $100 for 1000 units is $100K just for the parts, and then assembly is another significant chunk. A small company may not have the cashflow to take the chance on building 1000 units that all need some kind of fix, so they may do more small runs before doing the big one. If each run takes 2 months to figure out and get together, you can see how things can quickly extend out to the future.

Thank you AndreYew. I couldn't put it any better myself. That initial ramp up is what we are dealing with. But that will be over soon.

post #3364 of 5812
Quote:
Originally Posted by georgelai57 View Post



Nice to see that the unit comes almost fully charged for instant gratification. Three very minor nit picks: 1. The supplied 30 pin to USB cable didn't work on this or any other device of mine. Used one of my spare cables and they were fine on the M8. 2. The USB socket on the M8 is the wrong way around because with all my other 5 short wires I had to twist the wire around. 3. The part of the power cable going into the adapter (?) is so loose that one touch and the power is interrupted.
But these are nitpicks and not deal breakers.

- The 30-pin cable will be replaced. We've been in touch with the customer already. A couple of bad cables were indeed found in the batch and we re-tested all of them, just to make sure. The bad ones have been discarded. 

- The pinout is correct. M8 works with the long white cable that comes with your iPhone (4 or 5 alike)

- The power cable had to be plugged into the power supply all the way. The customer confirmed that once they plugged it in, the problem went away.


Edited by mgoodman - 9/3/13 at 11:15pm
post #3365 of 5812
Quote:
Originally Posted by thegrobe View Post
 

 

So wait a minute...you are able to walk in off the street to Jaben and buy an M8? While pre-order customers who have been waiting for the better part of a year are being told it may still be a month or two wait? Classic. 

 

It's okay, I'll keep waiting.... ph34r.gif.... ph34r.gif.......ph34r.gif

Actually Jaben was the first to preorder. They waited longer than anyone else. They are very nice people. Give them a break. We only sent them several pieces so this guy literally got lucky.

 

We are fulfilling the cue by seniority still, no changes. However, if you are willing to pay full price, TTVJ, Moon Audio, Jaben, HiFi Heaven and a couple more dealers *may* have 1-2 units each. Again, they also all ordered wa-aay back when and patiently waited.


Edited by mgoodman - 9/3/13 at 11:16pm
post #3366 of 5812
Well Michael, mine arrived today, 10 months to the day after I preordered. It is very worth the wait. As I said on the impressions thread, it sounds so good that I just don't notice it. I can't give much higher praise than that. You may recall I had pretty low expectations of the tone switches. I am very pleasantly surprised. They work subtly and well. I will actually use them. I would have been happy just knowing I could shut them off. It is wonderful that they work as well as they do. Last note - so non fatiguing I am listening louder than usual - gotta be careful with that one, and for longer this session than usual. Very well done. 👍
post #3367 of 5812
Quote:
Originally Posted by AmberOzL View Post
 


I hope they do, maybe they can even jump in and give us a quick answer. Something like "Guys we hear you, not now but in the near future we will definitely try to make your dreams come true" rolleyes.gif

Guys we hear you, not now but in the near future we will definitely try to make your dreams come true :)

post #3368 of 5812
Quote:
Originally Posted by jexby View Post
 

Dear all you Lucky M8 owners,

 

any noise or imbalance on the volume pot?

 

that knob looks just like the one on the DACport, which at low volume can have a tad bit of scratchiness when adjusting volume....

Only the plastic knob is the same as DACport. Not the pot itself. We use a much better-quality potentiometer in HiFi-M8, so linearity is improved, and so is channel balance. Aside from that, there are now three gain settings, which let you adjust the gain so that the pot is always riding in the comfortable range (9 o'clock to 3 o'clock). Most pots are very well-behaved in that range, but we took that one step further with the more expensive pot anyway. 

post #3369 of 5812
Quote:
Originally Posted by jinbara002 View Post
 

Special message to Todd The Vinyl Junkie.

 

When order Centrance HiFi M8  ship out ? Labour Day holiday already over ..

We have a shipping schedule posted on the product blog, right here. If you have any questions, please PM me.

post #3370 of 5812
Quote:
Originally Posted by aamefford View Post

Well Michael, mine arrived today, 10 months to the day after I preordered. It is very worth the wait. As I said on the impressions thread, it sounds so good that I just don't notice it. I can't give much higher praise than that. You may recall I had pretty low expectations of the tone switches. I am very pleasantly surprised. They work subtly and well. I will actually use them. I would have been happy just knowing I could shut them off. It is wonderful that they work as well as they do. Last note - so non fatiguing I am listening louder than usual - gotta be careful with that one, and for longer this session than usual. Very well done. 👍

Thank you so much aamefford! You have waited a long time and your feedback means a lot to me. Thank you for participating in product definition from day one! Enjoy your M8!

post #3371 of 5812

@ IronLung: We have your issue solved!

 

Our customer IronLung reported hearing some background noise with sensitive IEMs. He tried JH-13, Shure 535 and other headphones with balanced armature design. Other customers did not report excessive noise, but IronLung did not like it - his lungs may be made of iron but his ears are not -- they are are very sensitive (no offence, just praise).

 

While I didn't have too many IEMs laying around (I'm mostly an over-head guy), CEntrance is located relatively close to Shure and I have some friends there from way back when. I used to run an engineering Dept. at Shure... Ah, the good old days... 

 

Long story short, we obtained a couple of pairs of 535 headphones and confirmed that you could indeed hear some very faint background hiss if you listen very carefully and if no music is playing. Of course, if music IS playing, you better grab a hold of that volume knob, as those headphones are ULTRA sensitive and you could blow your ears out.

 

You see, HiFi-M8 is wa-aay overpowered for IEMs. To compensate for that, it does have a gain switch, which reduces the output signal level by a lot, to make sure it doesn't rip the IEMs (or your ears) apart, but it's probably not fair to use its might to drive sensitive IEMs, which require tiny amounts of power. 

 

It's like taking your Aston Martin grocery shopping -- you don't get to see what the Bond car can do.

 

When I listened to the 535s, I didn't find the level of background noise offensive, but with CEntrance, the customer comes first.

 

We've tried several ways to lower the background noise for IronLung, and we succeeded.

 

We now have a mod. We could call it the "IronLung mod", but an even more appropriate name would be "The IEM mod."

 

We've modded the unit for the customer and will be sending to him shortly.

 

Meantime, if anyone finds themselves experiencing too much background noise, let us know. We have a mod for that!


Edited by mgoodman - 9/3/13 at 11:52pm
post #3372 of 5812
Quote:
Originally Posted by mgoodman View Post

- The 30-pin cable will be replaced. We've been in touch with the customer already. A couple of bad cables were indeed found in the batch and we re-tested all of them, just to make sure. The bad ones have been discarded. 
- The pinout is correct. M8 works with the long white cable that comes with your iPhone (4 or 5 alike)
- The power cable had to be plugged into the power supply all the way. The customer confirmed that once they plugged it in, the problem went away.
I am that customer and can confirm that the power cable is fine now. I only wished it came with a UK 3-pin but it's not crucial. Thank you Michael.
post #3373 of 5812
Quote:
Originally Posted by mgoodman View Post

Actually Jaben was the first to preorder. They waited longer than anyone else. They are very nice people. Give them a break. We only sent them several pieces so this guy literally got lucky.

We are fulfilling the cue by seniority still, no changes. However, if you are willing to pay full price, TTVJ, Moon Audio, Jaben, HiFi Heaven and a couple more dealers *may* have 1-2 units each. Again, they also all ordered wa-aay back when and patiently waited.

I am that lucky guy cool.gif
post #3374 of 5812
  • mgoodman
  • Member of the Trade: CEntrance
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  • 458 Posts. Joined 9/2009
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IronLung: We have your issue solved!


Our customer IronLung... 

Warning: Spoiler! (Click to show)

reported hearing some background noise with sensitive IEMs. He tried JH-13, Shure 535 and other headphones with balanced armature design. Other customers did not report excessive noise, but IronLung did not like it - his lungs may be made of iron but his ears are not -- they are are very sensitive (no offence, just praise).

 

While I didn't have too many IEMs laying around (I'm mostly an over-head guy), CEntrance is located relatively close to Shure and I have some friends there from way back when. I used to run an engineering Dept. at Shure... Ah, the good old days... 

 

Long story short, we obtained a couple of pairs of 535 headphones and confirmed that you could indeed hear some very faint background hiss if you listen very carefully and if no music is playing. Of course, if music IS playing, you better grab a hold of that volume knob, as those headphones are ULTRA sensitive and you could blow your ears out.

 

You see, HiFi-M8 is wa-aay overpowered for IEMs. To compensate for that, it does have a gain switch, which reduces the output signal level by a lot, to make sure it doesn't rip the IEMs (or your ears) apart, but it's probably not fair to use its might to drive sensitive IEMs, which require tiny amounts of power. 

 

It's like taking your Aston Martin grocery shopping -- you don't get to see what the Bond car can do.

 

When I listened to the 535s, I didn't find the level of background noise offensive, but with CEntrance, the customer comes first.

 

We've tried several ways to lower the background noise for IronLung, and we succeeded.

 

We now have a mod. We could call it the "IronLung mod", but an even more appropriate name would be "The IEM mod."

 

We've modded the unit for the customer and will be sending to him shortly.

 

 

 

 

^great news Michael! I'm Shure many customers in the future might request this as there are many iem guys, and hiss on their ultra pricey and sensitive iems with different gear could very well be a deal breaker.

 

Does this Mod only affect the lowest gain setting?


Edited by wormsdriver - 9/4/13 at 12:08am
post #3375 of 5812

to : Todd The Vinyl Junkie ( online store for Centrance HIFI M8)

 

Enquiry  when order  Centrance HiFi M8  ship out after payment ?

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