Campfire Audio - Introducing 2 new models Hello Andromeda and Nova

[bartzky]

Claimed 2.5 output impedance had inferior bass to the 3.9 ohm inline resistor for me.

The iEMatch's output impedance also depends on the device's output impedance the iEMatch is used with, more so in High than Ultra setting.

 

[goodvibes]

I'm aware. I used with a QP1r in low gain and tried both IFI match positions. QP1r z is stated to be under 0.19 ohms so a non issue in this case. Also, in a compare of bass quantity/quality of 2 different resistor devices, that wouldn't be as important as the overall impedance. If you've read my posts over the last 3 or so pages, you'd see combined impedance for the inline resistor has been addressed.

I also think that if you look at the circuit, the IFI output impedance is actually not supposed to be dependant on the output impedance of the source and predominantly dictated by the final paralleled resistor.

 

[bartzky]

@goodvibes: I'm not entirely sure what you like to state. To avoid misunderstanding:

(Warning, maths ahead)

In case of an inline resister the resulting new impedance (N) of the whole chain is the sum of the device's output impedance (D) and the resistor value (R):

I think this is what you already mentioned.

For iEMatch in High mode the new impedance (N) calculates as follows:

Hence a device's output impedance of e.g. 30 ohms will mean a resulting impedance of about 3.14 ohms rather than 2.5 ohms. So depending on the device's output impedance the resulting impedance with iEMatch might be slightly higher than the declared 2.5 ohms though never be higher than about 3.4 ohms. But we all know Andromeda is highly sensitive to changes of output impedance, so changes even that small might make an audible difference. I hope that clears things up a bit.

 

[Gavin C4]

The iEMatch using with my Mjolnir 2 and Andromeda makes the vocal sound recessed or slightly veiled... As a result, I just stop using the iEMatch, and just plugin the Andromeda into the Mjolnir 2 with just a little hiss.

 

[goodvibes]

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[goodvibes]

@goodvibes: I'm not entirely sure what you like to state. To avoid misunderstanding:

(Warning, maths ahead)

In case of an inline resister the resulting new impedance (N) of the whole chain is the sum of the device's output impedance (D) and the resistor value (R):

I think this is what you already mentioned.

For iEMatch in High mode the new impedance (N) calculates as follows:

Hence a device's output impedance of e.g. 30 ohms will mean a resulting impedance of about 3.14 ohms rather than 2.5 ohms. So depending on the device's output impedance the resulting impedance with iEMatch might be slightly higher than the declared 2.5 ohms though never be higher than about 3.4 ohms. But we all know Andromeda is highly sensitive to changes of output impedance, so changes even that small might make an audible difference. I hope that clears things up a bit.

30 ohm device output impedance to move the output z 0.6 ohm? 30 ohm output impedance? Really, you don't think this is picking nits? Part of the isi claimed attributes is to passively lower the z that the transducer sees from high z devices as well as its ability to stabilize it across devices. You give a great example of that. Also, anything with that high z of an output usually has tons of gain, like an old receiver etc with inline resistors coming off the amp stage. You would much more likely use the ultra setting.

All the source devices we've discussing have output impedances below 6 ohms. Redo that math and see how insignificant it is. With what I used, that calculation would be 2.5 ohms. As for sound, that's always debatable and was clearly IMO. Remember that I tried both settings, also the 1 z and not just the higher 2.5 z out. Would also be nice if you defined your letters and where you came up with that formula. Parallel resistors values = AxB/A+B series are added. I don't really see what your formula fits but I may just not understand what the letters mean.

While the Andro bass amplitude is sensitive to output z, it's bass character is always good for me up to 5 ohms. We're talking a 3db swing here. While I get tweaky with this stuff, it's awesome as is. I just wanted to hear an iematch and didn't really care for it's bass character. Others do. ymmv like all things subjective.

The ie match almost has to be a high value series resistor (so the amp sees a safe load) followed by a low value one in parallel to the transducer, where the greater gain reduction and determining output z is derived. The Output Z of the source device is rather inconsequential.

I added an image of the likely circuit used. Values are arbitrary.

 

[ChaseDream]

Hi everyone,

I followed most of campfire audio threads for a long time, though I just joined head-fi these days. lol

Several days ago, I just got the Andromeda CK snow white edition, which is a limited edition for HK only.

What's interesting is that it's not only a CK finished but also having similar sound signature with slightly different tuned sound from my point of view.

As I also have the classic green one, I'm doing comparison for the two.

Please let me know if you have any questions for me.

There's a photo I took for the two beauty to show my respect to Ken and his team!

Cheers!

 

[aaf evo]

That white is lovely, I may be biased towards green as it is my favorite color but I just love them

 

[goodvibes]

Both look great IMO. I would suspect any difference you hear would be cable and run in related. I doubt they would mess with a good thing.

 

[alphanumerix1]

Both look great IMO. I would suspect any difference you hear would be cable and run in related. I doubt they would mess with a good thing.

^ This

 

[twice tzuyu]

I wish the regular Andromedas were coated with Cerakote. Mine looks like they have been worn to a battle lol.

 

[JaeYoon]

I wish the regular Andromedas were coated with Cerakote. Mine looks like they have been worn to a battle lol.

My Andromeda's anodizing is wearing out on the edges from the nature's winds and forces lol.

It's going to look like they've been to war soon!

Also recently started listening to Pink Floyd's wish you were here album.

 

[KEV G]

My Andromeda's anodizing is wearing out on the edges from the nature's winds and forces lol.

It's going to look like they've been to war soon!

Also recently started listening to Pink Floyd's wish you were here album.

Great album, been listening to that for a long long time and it never fails to impress. I wonder if CA would recoat them, or would it just cost too much.

 

[JaeYoon]

Great album, been listening to that for a long long time and it never fails to impress. I wonder if CA would recoat them, or would it just cost too much.

That would be awesome. Time to send an email to support lol

 

[stoobot]

My Andromeda's anodizing is wearing out on the edges from the nature's winds and forces lol.

It's going to look like they've been to war soon!

Also recently started listening to Pink Floyd's wish you were here album.

Definitely my favourite Pink Floyd record, and superb for testing (and generally enjoying!) IEMs with!