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  1. Andykong

    Cayin HA-3A, a Compact 6V6s Transformer-coupled Tube Amplifier

    Sorry, I have no idea about the forthcoming product beyond 2024. :beerchug:
  2. Andykong

    Cayin HA-3A, a Compact 6V6s Transformer-coupled Tube Amplifier

    This is the specification of HA-3A headphone outputs, as you can see, the output of the same phone connector varies when you change the impedance setting, so the amp does not always run at 15V. Since you want to know the Vrms output of the amplifier, I worked out the value for your reference...
  3. Andykong

    Cayin HA-3A, a Compact 6V6s Transformer-coupled Tube Amplifier

    Well, out of curiosity, will 4-pieces suit like this generates any interest? :wink:
  4. Andykong

    Cayin HA-6A Class A KT88/EL34 Tube Headphone Amplifier

    Volume position is merely a convenient indicator, the root cause of the dynamic compression is the consumption of headroom due to the higher-than-normal input level. I'll try to explain this but my lousy English probably increased the "distortion" of the communication. :sweat_smile: When he...
  5. Andykong

    Cayin N30LE DAP: A Transformative Milestone (30th Anniv. Limited Edition)

    Speechless. Thank you. We couldn't have done it without long-term support from customers who appreciate our innovations and our sound signature/preference. :beerchug:
  6. Andykong

    Cayin N30LE DAP: A Transformative Milestone (30th Anniv. Limited Edition)

    This should explain the Pre Out and Line Out function properly.
  7. Andykong

    Cayin HA-6A Class A KT88/EL34 Tube Headphone Amplifier

    I would name products in my recommendation, for obvious reasons, but I can offer some opinions based on my observations in managing HA-6A and HA-300 discussions in the past few years. The HA-6A is designed to work with 2V single-end and 4V Balanced line-level input, minor deviation shouldn't...
  8. Andykong

    Cayin N7: A Voyager of Unexplored Frontier

    While C9 is a very high-power portable headphone amplifier and a lot of users are buying it for demanding IEMs and headphones, it has its magic with sensitive IEM too, we have discussed this in detail HERE. On the other hand, when we fine-tune the performance of N7, the Line Out and Pre Out...
  9. Andykong

    Cayin N7: A Voyager of Unexplored Frontier

    Yes and No. If you connect the N7 to an external DAC with Coax input, the CS-30TCR cable will do just that, but we didn't translate the USB Audio signal into S/PDIF, we embedded the original S/PDIF bitstream into the A8/B8 pin of USB-C connector, these pins are designed for sideband use. The...
  10. Andykong

    Cayin N30LE DAP: A Transformative Milestone (30th Anniv. Limited Edition)

    Our first TPU case prototype did exactly that, warping around all sides to offer maximum protection, we found it very difficult to get the DAP into or out of the case. We changed the design to make it more "operationable".
  11. Andykong

    Cayin N30LE DAP: A Transformative Milestone (30th Anniv. Limited Edition)

    If the case is defective, Cayin will replace it, we have spares in our factory and we can't use them for other purposes. I have mentioned this repeatedly, I am doing my best to help HeadFiers and Cayin users understand Cayin products, solve their technical problems, know the...
  12. Andykong

    Cayin HA-2A, Compact Tube Headphone Amplifier

    If you can quote the source and date, maybe we have more information to discuss or explain your concern. If you were referring to the hissing problem reported by users in the early date of HA-6A, we have resolved the problem HERE. Alternatively, you can pose similar questions to the HA-6A and...
  13. Andykong

    Cayin HA-2A, Compact Tube Headphone Amplifier

    We have provided a specification table at rhe end of opening post.
  14. Andykong

    Cayin RU7: 1-Bit Resistor Network Dongle DAC /Amp

    The Cayin factory will resume office on 19 February 2024. There won't be any service or operation in the Zhuhai office before that.
  15. Andykong

    Cayin RU7: 1-Bit Resistor Network Dongle DAC /Amp

    There wasn't any. Ru7 is based on a discrete resistor network DAC, unlike other Dongle DACs that use highly integrated semiconductor chipset in the DAC function, the discrete resistor network in RU7 is NOT programmable, the firmware in RU7 does nothing to control the DAC function, it was used...
  16. Andykong

    Cayin N30LE DAP: A Transformative Milestone (30th Anniv. Limited Edition)

    You probably need to paint the N30LE to white to convince her that this is a new iPod. By the way, the Apple Vision Pro is priced at $4000, so maybe something called Apple Music Pro can be worth a lot more than £349. :wink:
  17. Andykong

    Cayin N30LE DAP: A Transformative Milestone (30th Anniv. Limited Edition)

    Yes, Cayin is still looking forward to the response from ROON.
  18. Andykong

    Cayin N30LE DAP: A Transformative Milestone (30th Anniv. Limited Edition)

    As far as Cayin is concerned, we delivered all 300 sets of N30LE to our dealers (domestic and overseas) by mid-October, and we listed it as sold out in our product list ever since. Some dealers are very enthusiastic about N30LE and placed substantial orders for N30LE immediately, hence they...
  19. Andykong

    Cayin HA-3A, a Compact 6V6s Transformer-coupled Tube Amplifier

    For users who primarily use XLR as their audio source, an RCA connection can be used as a grounding connection between DAC and Amplifier to solve the ground hum problem. Yes, you only need one RCA cable to achieve ground connection, but a lot of users feel uncomfortable to connect only one RCA...
  20. Andykong

    Cayin HA-3A, a Compact 6V6s Transformer-coupled Tube Amplifier

    When I picked up HeadFi hobby many years ago, I planned a very simple headphone system that would allow me to explore as many headphones as possible, and my first headphone system comprised of 1 DAC with two headphone amplifiers (one Solid State and one vacuum Tube), My System was installed on a...
  21. Andykong

    Cayin RU7: 1-Bit Resistor Network Dongle DAC /Amp

    We used to include both the issue date and the last update date on our USB Audio Driver page. We removed the issue date of the USB Audio Driver based on the user's suggestion. Some users find it confusing when they are downloading a 2018 USB Audio Driver for their 2022 DAP. The more important...
  22. Andykong

    Cayin N30LE DAP: A Transformative Milestone (30th Anniv. Limited Edition)

    We received several reports on HeadFi, but we cannot replicate the exact problem with our demo units in the factory. When we can't identify the problem, we cannot solve the problem. It is unlikely related to the issues you suggested, we have tried to tweak the operation condition to replicate...
  23. Andykong

    Cayin HA-3A, a Compact 6V6s Transformer-coupled Tube Amplifier

    https://www.head-fi.org/threads/cayin-ha-3a-a-compact-6v6s-transformer-coupled-tube-amplifier.963983/page-113#post-17951224
  24. Andykong

    Cayin C9: Dual Nutube, Fully Balanced Class A/AB Portable HeadAmp

    Glad you can continue your music journey with your C9. The protection mode is triggered when there is a short circuit between the audio ground and the charging ground (explained HERE). A static discharge as described will not trigger protection mode.
  25. Andykong

    Cayin HA-3A, a Compact 6V6s Transformer-coupled Tube Amplifier

    We can't draw any conclusion based on your observation. This can be a hardware problem (including tube-related) or something caused by external interference. Random interference is wild and difficult to catch, it can be caused by, for example, the lighting in your room and there is a dimmer...
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