Topic: I-River input impedance?

[lordbelial]

Hi,

I was wondering which was the input impedance for the line input of the Iriver.

Does anybody know?

Thanks,

[udovdh]

Hi,

I was wondering which was the input impedance for the line input of the Iriver.

Does anybody know?

Same here. Could not find any info.

[lordbelial]

Hi,

I was wondering which was the input impedance for the line input of the Iriver.

Does anybody know?

Same here. Could not find any info.

Nice to see I'm not the one who's wondering... Let's wait to the most experienced Iriver users.

May it be a good idea to ask this on the rockbox forums?

[udovdh]

I asked one or two questions at misticriver. No reply.

[Church-Audio]

10k

Hi,

I was wondering which was the input impedance for the line input of the Iriver.

Does anybody know?

Thanks,

[udovdh]

10k

Thanks!
Measured?
Or from specs some where?


BTW: Any idea on max input level with just analog attenuation?

[lordbelial]

10k

Hi,

I was wondering which was the input impedance for the line input of the Iriver.

Does anybody know?

Thanks,

Thanks! I never thought that It could have the same impedance as a mic-in from a Sharp MD....

[Church-Audio]

I know it is because I have measured it with an impedance meter its aprox 10k

10k

Thanks!
Measured?
Or from specs some where?


BTW: Any idea on max input level with just analog attenuation?

[udovdh]

I know it is because I have measured it with an impedance meter its aprox 10k

OK, good! twice that of the MT.
Now the max analog input level with just analog attenuation?

[Church-Audio]

I do not understand your question sorry max input with analog attenuation? There is not such thing as analog attenuation in a digital circuit. Or are you talking externally if so the max input could be 100volts if you attenuate the signal enough
I will say that most recorders that have unbalanced inputs are 10k or pretty close too it.

Chris Church

I know it is because I have measured it with an impedance meter its aprox 10k

OK, good! twice that of the MT.
Now the max analog input level with just analog attenuation?

[udovdh]

I do not understand your question sorry max input with analog attenuation? There is not such thing as analog attenuation in a digital circuit. Or are you talking externally if so the max input could be 100volts if you attenuate the signal enough
I will say that most recorders that have unbalanced inputs are 10k or pretty close too it.

The deck has some level controls that work in teh analog domain.
What is the max analog signal for 0dBFS I can feed into the deck with just the help of the analog level controls?

[graemecogger]

I know it is because I have measured it with an impedance meter its aprox 10k

That's kind of weird 
My H120 is about 2.2K, not 10K - mostly influenced by a 2K7 resistor to the positive supply.  Maybe they changed the spec at some point?

[George]

This is all I could find on iriver's site:

http://www.iriver.com/html/product/prpa_product.asp?pidx=43

[Church-Audio]

How did you measure it with an ohm meter or a impedance meter? they are very different measurements.

Chris Church

I know it is because I have measured it with an impedance meter its aprox 10k

That's kind of weird 
My H120 is about 2.2K, not 10K - mostly influenced by a 2K7 resistor to the positive supply.  Maybe they changed the spec at some point?

[Church-Audio]

Your telling me this thing has a volume control that is not digital where do you look at the volume level on a display? or is it printed on the case?

Chris Church

I do not understand your question sorry max input with analog attenuation? There is not such thing as analog attenuation in a digital circuit. Or are you talking externally if so the max input could be 100volts if you attenuate the signal enough
I will say that most recorders that have unbalanced inputs are 10k or pretty close too it.

The deck has some level controls that work in teh analog domain.
What is the max analog signal for 0dBFS I can feed into the deck with just the help of the analog level controls?