[Ynot1]

Dual power rail with high voltage swings.
Class A at low power.
Output tubes at medium power with input tubes and op-amp options via plug in.
AAA THX at high power. I heard it was efficient so might as well let it stretch its legs.

JL audio had amps where the output power remains the same for whether the load is 2 or 4 or 8 ohms. This should be done so that you don't have to adjust the input gain for different headphones, unless you want to. I think they have a patent on that. But it was never implemented for headphones.

 

[jerick70]

Dual power rail with high voltage swings.
Class A at low power.
Output tubes at medium power with input tubes and op-amp options via plug in.
AAA THX at high power. I heard it was efficient so might as well let it stretch its legs.

JL audio had amps where the output power remains the same for whether the load is 2 or 4 or 8 ohms. This should be done so that you don't have to adjust the input gain for different headphones, unless you want to. I think they have a patent on that. But it was never implemented for headphones.

A tube output and input stage would be a dream with this amp. I would want it to be defeatable so you can switch timbre.

 

[misteral201103]

For all those who are asking for Chromecast/Google-cast
Bear in mind that Fiio is a Chinese company and a lot of their user base is in China. In simple terms, Chromecast is non-workable here (without a VPN on a router and that's very unstable IME). I'm not saying they won't do it, or can't do it and of course this is me hypothesising, not Fiio talking - but I suspect it may not be worth their time/effort/money in the long run. Apple Airplay, on the other hand, is not so restricted so there's a greater chance there....

On a separate note, when I am feeling satisfied with all my gear and telling myself I don't need anything else, Fiio are the absolute masters of whipping a cloth from the top of a new product, smiling beneficently and asking "have you seen this, though?". I don't need the K7 but I'm VERY interested....

 

[bahamot]

Just hook up sbc with volumio or android then you can get all the network connectivity you want.

 

[Kean FiiO]

For all those who are asking for Chromecast/Google-cast
Bear in mind that Fiio is a Chinese company and a lot of their user base is in China. In simple terms, Chromecast is non-workable here (without a VPN on a router and that's very unstable IME). I'm not saying they won't do it, or can't do it and of course this is me hypothesising, not Fiio talking - but I suspect it may not be worth their time/effort/money in the long run. Apple Airplay, on the other hand, is not so restricted so there's a greater chance there....

On a separate note, when I am feeling satisfied with all my gear and telling myself I don't need anything else, Fiio are the absolute masters of whipping a cloth from the top of a new product, smiling beneficently and asking "have you seen this, though?". I don't need the K7 but I'm VERY interested....

Thank you for understanding.
I have no plans to add Chromecast/Google-cast, because we are not only thinking about multi-functionality when product plan, but also making the current functions reliable.
We really don’t have enough experience with the transmission quality and stability of wifi audio streams in desktop products.
If customers want this feature, they can buy an adapter with chrome cast function at a very low price. So many such products on the market
This is just my point

 

[llysender]

I have a very simple request, add a switch to the pre out. Having to walk to the speakers to turn them off is very annoying with the K5 pro and honestly the semi optimal solution of unplugging the rca all the time cannot be good for the longevity of the pre out connectors for the K5 pro.

That being said I'm curous as to what is the optimum max power output for hard to drive planars and high impedence dynamics as the solution of pumping more power seems to stop at around max 2W/dB. Something not top of the line but able to power majority of headphones out there well would be my other request.

 

[521994]

I guess there will be a selection for Optical? If this unit performs as good as the THXAAA789 then there this is a very compelling offer. I think it will be useful if this unit is modular. For example I would like to have the option to exclude the DAC and use my external dac. Similar to what Schiit is doing and this will create a cheaper product for those who want just a very good headphone amplifier with balanced preout or pass through.
Long Story short, power and performance similar to TXHAAA789, better connectivity (XLR output pass through or preamp) and the possibility to exclude the DAC section. That will compete with TXH and will have the advantage of XLR output.

 

[Kean FiiO]

I have a very simple request, add a switch to the pre out. Having to walk to the speakers to turn them off is very annoying with the K5 pro and honestly the semi optimal solution of unplugging the rca all the time cannot be good for the longevity of the pre out connectors for the K5 pro.

That being said I'm curous as to what is the optimum max power output for hard to drive planars and high impedence dynamics as the solution of pumping more power seems to stop at around max 2W/dB. Something not top of the line but able to power majority of headphones out there well would be my other request.

Sure, as I mentioned， we will design BLE link and APP control for K7. Through that， users can set the output level adjustable or not, and select which port output.

 

[ahmonge]

An internal power supply, with a real power switch. Less cumbersome setup and good tor reducing power consumption. I have the K5 pro and this is my only complain.

 

[Kean FiiO]

An internal power supply, with a real power switch. Less cumbersome setup and good tor reducing power consumption. I have the K5 pro and this is my only complain.

If I still use a power adapter and design an isolation circuit inside the K7, and reconstruct the DC power supply.
Because of the isolation circuit, the positive and negative power supply after processing will be more pure.
That's to say, there are ways to improve the power quality of DC adapter supply.

As described above, can you accept external power adapter supply?
In addition， the power adapter supply will be safer

 

[elNan]

@Kean FiiO, just earn a "Golfing Pink Panther" review on audiosciencereview.com and I'll bite.

 

[javre76]

I really despise your software, but your hardware could not be better. I like what I see, I will probably buy it, if it is as good in output as my modi-magni stack.

 

[headpfizer]

Hello,

My thoughts:

1. Switchable line/pre out. Switches are nicer than apps.
2. If design is ballanced make sure volume pot is ballanced too (unlike Drop 789 - source of confusion over whether amp is ballanced or not.)
3. Prefer AKM DAC over ESS.

Thank you

 

[Kean FiiO]

Hello,

My thoughts:

1. Switchable line/pre out. Switches are nicer than apps.
2. If design is ballanced make sure volume pot is ballanced too (unlike Drop 789 - source of confusion over whether amp is ballanced or not.)
3. Prefer AKM DAC over ESS.

Thank you

For 1）： APP control is also very convenient. Because we plan to automatically connect to the APP after the K7 is turned on.
Of course, switching is more efficient. As you know, do users often switch between line out and pre-out？

BTW，k7 will have a fully balanced audio circuit, including volume adjustment section

 

[521994]

@Kean FiiO what about the possibility for a modular design where we have the option to exclude the dac. I personally like the proposed amp's connectivity, xlr, fully balanced design etc. An option without dac will reduce cost, improve profit margins/unit for Fiio and give us the option.