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Cayin C9: Dual Nutube, Fully Balanced Class A/AB Portable HeadAmp
Dec 3, 2021 at 12:38 PM Post #5,086 of 6,212
immortalsoul said:
T01 in balanced mode and the headphones were JH Audio Roxanne with a 4.4 Moon Audio Black Dragon cable
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I see. Please be reminded that 4.4mm line out of T01 Audio Motherboard is shared line out, a fixed level output after phone amplification. The 3.5mm line out of T01 is a real deal because it is a line driver after LPF, bypassed the headphone amplification circuit.
 
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Dec 3, 2021 at 12:49 PM Post #5,087 of 6,212
Andykong said:
I see. Please be reminded that 4.4mm line out of T01 Audio Motherboard is shared line out, a fixed level output after phone amplification. The 3.5mm line out of T01 is a real deal because it is a line driver after LPF, bypassed the headphone amplification circuit.
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Thank you for taking the time to write me this information. I will definitely use the 3.5 from now on from my T01 because I still enjoy this motherboard
 
Dec 4, 2021 at 4:51 AM Post #5,088 of 6,212
Would there be a problem of damaging any of the devices by using DX300 in high gain and 100% bolumen and C9 high gain and controlling the volume from the latter?
 
Dec 4, 2021 at 6:37 AM Post #5,089 of 6,212
Mithrandir1980 said:
Would there be a problem of damaging any of the devices by using DX300 in high gain and 100% bolumen and C9 high gain and controlling the volume from the latter?
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What are you driving that requires so much power? In theory it should be fine as long as you use amp12. If you are using amp11 you will damage it when set to high gain LO (too high output voltage); this was reported by someone in dx300 thread who damaged his amp11 card twice doing that.
 
Dec 4, 2021 at 8:14 AM Post #5,090 of 6,212
twister6 said:
What are you driving that requires so much power? In theory it should be fine as long as you use amp12. If you are using amp11 you will damage it when set to high gain LO (too high output voltage); this was reported by someone in dx300 thread who damaged his amp11 card twice doing that.
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If it's because of LO on the Amp12 ... maybe I miss when I went to clubs and I like the forceful sound 🤣
 
Dec 8, 2021 at 11:40 AM Post #5,091 of 6,212
Today my C9 arrived. But i suspect, i may have received a fake one. First it was DIY (assembly needed). Second it came with 2 op amps (JRC4580D and MUSES01). The sound seems ok, but no word about class A or AB.

Next i will have to find good sounding alkalines.

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Dec 8, 2021 at 11:43 AM Post #5,092 of 6,212
scotty59 said:
Today my C9 arrived. But i suspect, i may have received a fake one. First it was DIY (assembly needed). Second it came with 2 op amps (JRC4580D and MUSES01). The sound seems ok, but no word about class A or AB.

Next i will have to find good sounding alkalines.

1.jpg2.jpg
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That is from Korg: https://www.korg.com/us/products/audio/ha_s/

Not sure what made you think this is a Cayin C9, it does not even remotely resemble it visually? I am confused.
 
Dec 8, 2021 at 12:06 PM Post #5,098 of 6,212
scotty59 said:
Today my C9 arrived. But i suspect, i may have received a fake one. First it was DIY (assembly needed). Second it came with 2 op amps (JRC4580D and MUSES01). The sound seems ok, but no word about class A or AB.

Next i will have to find good sounding alkalines.

1.jpg2.jpg
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Good joke , C9 for a hundred dollars.
 
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