The RU6 is much more delicate and sensitive to the way you use it... you must always connect and disconnect the IEMs (exclusively) when it is turned off, therefore before connecting it to the PC and do not leave it connected but always connect it after turning on the PC.Though I like the RU6 more than the M15, the M15 does one thing better it doesn't consume power if no heaphone is connected, RU6 consume power whether headphone is connected or not as it is always warm, this may cause the components to wear faster I think.
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Cayin RU6: R-2R USB Dongle DAC with Head-Amp
- Thread starter Andykong
- Start date
...and always unplug it before turning off the PC... it doesn't like power surges...
wape hatson
New Head-Fier
hello. i joined to report my having the same issue, where my chain worked well for a while then stopped working. wondering if you have found resolution?My RU6 has stopped working with my iPhone oddly - was fine for months but now no music playback when connecting either via Apple CCK or DDhifi lightning cable. No such issues with my RU7...
Anyone else having this issue?
Did youv try the new firmware ?hello. i joined to report my having the same issue, where my chain worked well for a while then stopped working. wondering if you have found resolution?
wape hatson
New Head-Fier
i have not. i'll investigate though. thanks for the tipDid youv try the new firmware ?
borkenarrou
500+ Head-Fier
I kept the RU6 unplugged for couple of hours and it started working again, I used to keep the RU6 plugged in all the time to my PC, now I unplug it when I am done listening.hello. i joined to report my having the same issue, where my chain worked well for a while then stopped working. wondering if you have found resolution?
Not sure if this will help but you can try to plug in a 3.5mm cable with nothing connected to the other end and touch the other to a metal object to discharge any static electricity buildup in one of the resistors, repeat this with USB / 4.4mm cables.
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Sorry wrong post...there is no firmware for this device...I really apologizei have not. i'll investigate though. thanks for the tip
wape hatson
New Head-Fier
Sorry wrong post...there is no firmware for this device...I really apologize n
wape hatson
New Head-Fier
no worries. thanks for trying
my experience is very strange. it was working just fine while out on a walk playing downloaded files and during the walk it stopped and i haven't had any luck getting it to come back. also, it works fine unplugging the ddHiFi cable and RU 6 and simply using Apple dongle DAC
my chain is iphone SE 2022 with iOS 17.1>ddHiFi MFi09S OTG Cable | Lightning to USB-C > Cayin RU 6>Etymotic ER4SR. at first i thought maybe an iOS update messed everything up but i can't figure how to explain why it gave up mid-walk? anyway many thanks for the suggestions
my experience is very strange. it was working just fine while out on a walk playing downloaded files and during the walk it stopped and i haven't had any luck getting it to come back. also, it works fine unplugging the ddHiFi cable and RU 6 and simply using Apple dongle DAC
my chain is iphone SE 2022 with iOS 17.1>ddHiFi MFi09S OTG Cable | Lightning to USB-C > Cayin RU 6>Etymotic ER4SR. at first i thought maybe an iOS update messed everything up but i can't figure how to explain why it gave up mid-walk? anyway many thanks for the suggestions
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wape hatson
New Head-Fier
Update--I got a signal through from the source to the IEMs laying the entire chain (iPhone SE 2022 with iOS 17.1>ddHiFi MFi09S OTG Cable | Lightning to USB-C > Cayin RU 6>Etymotic ER4SR) flat on a table. Slight movements of the phone or touching the ddHiFi cable stops the signal.
I tried Apple's supplied USB C to Lightning cable but RU 6 doesn't light up. I don't have any other cables to try but I'm thinking maybe ddHiFi cable isn't making a good enough connection? I'll try and locate another cable to see if the issue is resolved.
I tried Apple's supplied USB C to Lightning cable but RU 6 doesn't light up. I don't have any other cables to try but I'm thinking maybe ddHiFi cable isn't making a good enough connection? I'll try and locate another cable to see if the issue is resolved.
Sounds like a bad connection somewhere in the signal path.
Try borrow another iPhone from your friends to test your chain again?
Try borrow another iPhone from your friends to test your chain again?
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TYATYA
Headphoneus Supremus
A/B box some pairing.
My phone (ss note20u) sounds far below SQ of ak120ii when ru6 is in L gain mode.
Im sure 1000% H mode sounds better with my phone when driver a headphone. With ak120ii as a ref., SQ of Ru6 (again, my phone) is below average on L mode, vol 73 to 100, drive headphone).
H mode is acceptable in this case, not far to reach ak120ii.
Switch to sp1000, ru6 sounds good on both H and L.
Ak120ii sound very sharp and straight, beyond what sp1000 does. Bcs of that, it lack of 3D feeling compare to sp1000.
Ru6 is a kind of combination of them. So balance between them!
My phone (ss note20u) sounds far below SQ of ak120ii when ru6 is in L gain mode.
Im sure 1000% H mode sounds better with my phone when driver a headphone. With ak120ii as a ref., SQ of Ru6 (again, my phone) is below average on L mode, vol 73 to 100, drive headphone).
H mode is acceptable in this case, not far to reach ak120ii.
Switch to sp1000, ru6 sounds good on both H and L.
Ak120ii sound very sharp and straight, beyond what sp1000 does. Bcs of that, it lack of 3D feeling compare to sp1000.
Ru6 is a kind of combination of them. So balance between them!
Hyde00
Headphoneus Supremus
Damn there is A/B switch for 3.5 mm analogue input?A/B box some pairing.
My phone (ss note20u) sounds far below SQ of ak120ii when ru6 is in L gain mode.
Im sure 1000% H mode sounds better with my phone when driver a headphone. With ak120ii as a ref., SQ of Ru6 (again, my phone) is below average on L mode, vol 73 to 100, drive headphone).
H mode is acceptable in this case, not far to reach ak120ii.
Switch to sp1000, ru6 sounds good on both H and L.
Ak120ii sound very sharp and straight, beyond what sp1000 does. Bcs of that, it lack of 3D feeling compare to sp1000.
Ru6 is a kind of combination of them. So balance between them!
peterinvan
1000+ Head-Fier
I assume you have tried the Lightning to USB-C cable that is supplied with the RU6?Update--I got a signal through from the source to the IEMs laying the entire chain (iPhone SE 2022 with iOS 17.1>ddHiFi MFi09S OTG Cable | Lightning to USB-C > Cayin RU 6>Etymotic ER4SR) flat on a table. Slight movements of the phone or touching the ddHiFi cable stops the signal.
I tried Apple's supplied USB C to Lightning cable but RU 6 doesn't light up. I don't have any other cables to try but I'm thinking maybe ddHiFi cable isn't making a good enough connection? I'll try and locate another cable to see if the issue is resolved.
My experience is that my iPhone6 does not have the power to drive the RU6. I bought a FiiO KA3 for my phone.
wape hatson
New Head-Fier
The supplied Cayin USB-C to USB-C comes with an adaptor that allows use with USB-A. I hooked this up to my laptop and the RU 6 performs as expected. No drop outs, even while wiggling the cable and adaptor. It seems like the ddHiFi 09S USB-C to Lightning isn't making a good connection with the phone or the RU 6 or there could be an unseen break in the cable? I will also try a different phone to eliminate that possibility. Either way I am enjoying the RU 6 again thanks to the very helpful suggestions of the community.I assume you have tried the Lightning to USB-C cable that is supplied with the RU6?
My experience is that my iPhone6 does not have the power to drive the RU6. I bought a FiiO KA3 for my phone.
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