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Cayin C9: Dual Nutube, Fully Balanced Class A/AB Portable HeadAmp
Mar 13, 2021 at 4:12 PM Post #2,342 of 6,236
Whitigir said:
It is true that I never turned the volume alone without music over 12:00 o’clock. Mine is blipping over 1:00 or so with HD800s. I think it is the volume control at works, and it stops when I stop rolling the wheel
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Exactly, that's what happens to my gear. Glad to see I'm not the only one. Not sure what causes this.
 
Mar 13, 2021 at 4:17 PM Post #2,343 of 6,236
bigbeans said:
Exactly, that's what happens to my gear. Glad to see I'm not the only one. Not sure what causes this.
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Now that you have mentioned this, I recall similar experience with my gears as well. I considered this as a way of letting me fine-tune the volume. I think this is especially useful to prevent myself unintentionally adjusting the volume to be too high.
 
Mar 13, 2021 at 9:43 PM Post #2,345 of 6,236
twister6 said:
Just for confirmation since I was discussing this with another reviewer, anybody else with C9 and either EE Odin or Campfire Andro/Solaris sensitive IEMs who can comment on the hissing?
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Yes. Odins/C9 quite noisy with hiss and you can hear when volume knob is turned sometimes. Getting a longer infer-connect, so the player can be held further away from the C9, seems to help on some of the noise.
 
Mar 13, 2021 at 9:54 PM Post #2,347 of 6,236
KevP said:
Yes. Odins/C9 quite noisy with hiss and you can hear when volume knob is turned sometimes. Getting a longer infer-connect, so the player can be held further away from the C9, seems to help on some of the noise.
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I found the occasional noise from some pairing improved a lot after using the rack to physically separate the source and the AMP.
 
Mar 13, 2021 at 10:05 PM Post #2,349 of 6,236
Mar 14, 2021 at 4:26 AM Post #2,351 of 6,236
I think I know why some units has the blips and some doesn’t, but I also think that it is commons. The volume attenuations on the C9 is 2 stages, first of all, it is an analog Alp potentiometers, and secondly that it also has electrical attenuations. The blip is likely from the analog pot
 
Mar 15, 2021 at 3:39 PM Post #2,352 of 6,236
What happens when you add an N6ii with an E01 Motherboard with has Class A/AB to a C9 with Class A/AB?
Does this double up the A/AB sound?
If we set Class A on the N6ii and Class AB on the C9 what happens? Just asking so I know in advance when my C9 arrives what I could be listening to and why/how.
 
Mar 15, 2021 at 3:44 PM Post #2,353 of 6,236
zen87192 said:
What happens when you add an N6ii with an E01 Motherboard with has Class A/AB to a C9 with Class A/AB?
Does this double up the A/AB sound?
If we set Class A on the N6ii and Class AB on the C9 what happens? Just asking so I know in advance when my C9 arrives what I could be listening to and why/how.
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The E01 doesn't have line out
 
Mar 15, 2021 at 4:12 PM Post #2,355 of 6,236
Whitigir said:
That can only be used as Pre-amp in. I don’t see it having line out.

If so, then yes, class A preamp into Class A power amp is a double class A system. It is pretty common on large speakers.
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Wait, I thought if you connect Class A to Class A, it will cancel each other out, making it totally classless? :D

Sorry, my Monday afternoon humor, carried over from the "bird" thread LOL!!!

But jokes aside, this will be one serious double-amping?!
 
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