[Whitigir]

Oh, nice. What connector (set) is this?

Hakugei Metal Titanium Copper Alloy

 

[xand]

The stock 4.4-4.4 that comes with C9 has no such thing. Unless intentionally

I think it depends on familiarity with 4.4mm.

I've never used 4.4mm before the dx300/C9, and both me and a friend have unintentionally not fully plugged into (can't remember which but either the dx300 or c9) with the cayin interconnect.

Diagnosis wasn't hard though, because in each case there was no sound, and it hasn't caused a problem...

Now I know that more insertion force is required than for 3.5mm, and to check if the plug has been fully inserted.

Edit: @Andykong , I don't think the cayin interconnect is special in this regard, I've tried it with the three other 4.4mm plugs I have (two interconnect plugs, and the headphone plug, all provided by Ares Audio but visibly different), and while in terms of insertion pressure needed they're not absolutely identical they're similar enough that I expect the error mentioned above would have occurred.

 

[Whitigir]

I think it depends on familiarity with 4.4mm.

I've never used 4.4mm before the dx300/C9, and both me and a friend have unintentionally not fully plugged into (can't remember which but either the dx300 or c9) with the cayin interconnect.

Diagnosis wasn't hard though, because in each case there was no sound, and it hasn't caused a problem...

Now I know that more insertion force is required than for 3.5mm, and to check if the plug has been fully inserted.

Yes, there wouldn’t be any sound by both or one channel.

 

[Whitigir]

Theoretically, you can use the 18650 battery as a limiter if you use protected version battery, but since C9 use unprotected version of 18650, we have to develop our own version of current limiter for safety consideration. The current limiter is a fixed ampere design applied to all impedance loading, and when the output current has exceed this value, we will disconnect the amplifier circuit from the power supply subsystem.

The detail parameters are consider internal design detail, we don't have any plan to disclose such detail to public.

Would be nice to know the Upper limit of the current limiter, like 55A or so ? So we know which to stop by the CDR on buying batteries lol

 

[KickAssChewGum]

Sooo... will this improve my sp2000 with iems?

I'm sure it's been discussed here plenty of times, but I swear I used search and didn't find a good clear answer. I've had my sp2000 for a year now but I'm always looking to squeeze more SQ out of my chain -- and, also, I love stacks! I used to have a stack back in 2013 when I started with hifi (cayin c5 / fiio x3 -- loved that c5!) so I'm nostalgic to look like a mad scientist again...

But the question is: will it improve on the sp2000 soundstage and detail? Any sp2000 owners out there ready to share impressions?

If you like to eke out as much sound quality as possible from the SP2000 then you will not be disappointed pairing it with the C9. Make sure that you’re using a good interconnect and headphones/IEMs though in order to get the best out of it. Good luck!

 

[Whitigir]

That is why I value the C9 so much. Given that you are not driving anything overly sensitive (well, even if you do, IeMs tech as found by @twister6, will work). The C9 will improve any DAPs That offers line out. It only a matter of preferences and synergies, and remember, the better the Line out, the better the quality. Dx300 as a source ? Yes! Again, just a matter of synergies

 

[Shawnb]

I think it depends on familiarity with 4.4mm.

I've never used 4.4mm before the dx300/C9, and both me and a friend have unintentionally not fully plugged into (can't remember which but either the dx300 or c9) with the cayin interconnect.

Diagnosis wasn't hard though, because in each case there was no sound, and it hasn't caused a problem...

Now I know that more insertion force is required than for 3.5mm, and to check if the plug has been fully inserted.

I’ve done the same plugging in my 2.5mm into a 4.4mm adapter. Was easy to tell as I had no sound in one channel but it’s easy mistake to make. Hopefully I didn’t damage anything.

 

[Whitigir]

I’ve done the same plugging in my 2.5mm into a 4.4mm adapter. Was easy to tell as I had no sound in one channel but it’s easy mistake to make. Hopefully I didn’t damage anything.

If you only run it for a few seconds to couple minutes, then you should be just fine. The 2.5mm is easier to also be shorted to ground and once it is shorted, the sound will be cut off or intermittent.

 

[Shawnb]

If you only run it for a few seconds to couple minutes, then you should be just fine. The 2.5mm is easier to also be shorted to ground and once it is shorted, the sound will be cut off or intermittent.

Yeah it only got a few seconds and all sounds fine now. Just an easy mistake to make.

 

[greenmac]

Anyone paired C9 with LPGT ?

would be interested in outcome

thanks

 

[DaYooper]

Anyone paired C9 with LPGT ?

would be interested in outcome

thanks

I might try that, as soon as it arrives that is. I have the LPGT-Ti and I expect it to sound pretty fabulous with the C9 as it does with the Cayin tube desktop HA-6A.

 

[bluestorm1992]

Latest update from Cayin: C9 will be in stock by the end of this month.

(The guy in the pic is Cayin’s general manager in an event introducing C9)

 

[Whitigir]

I thought he was the CEO ? Or CFO ?

 

[bluestorm1992]

I thought he was the CEO ? Or CFO ?

I think he is basically the guy in charge.

 

[Whitigir]

I think he is basically the guy in charged.

Ok, you better tell him that we need more A02 or better LO source LoL!!!