[JamesFiiO]

650$ is cheap for a product like this.. Still need to hear it before being sure tho..

 
of course, that is the best thing you should do before you really pay the money.

 

[callizer]

   
sorry, we need to get SDK from the rockchip which means we can't released new version if they can't . so the answer is not.

Kinda expected it since there are a lot of difficulties that come with it but it's still a minor let down.
 
By the way, can you elaborate more on the locking mechanism of the amp module? From the pictures it looks like it uses some screws so you need to bring screwdrivers with you if you have multiple amp modules and want to change it on the go.

 

[JamesFiiO]

  Kinda expected it since there are a lot of difficulties that come with it but it's still a minor let down.
 
By the way, can you elaborate more on the locking mechanism of the amp module? From the pictures it looks like it uses some screws so you need to bring screwdrivers with you if you have multiple amp modules and want to change it on the go.

 
 
this may be the best way to lock the module. sorry.

 

[callizer]

   
 
this may be the best way to lock the module. sorry.
 

 
My suggestion is to include a set of thumb Screws in the box so people can have 2 choices of screws.
 
1. Regular screws.
Pros: screws don't stick out, better looking device
Cons: need screwdrivers to change the module
 
2. Thumb screws
Pros: you can open the screws with just fingers
Cons: the screws will stick out a bit. The device will look a bit uglier.
 
or if the higher powered amp has a gain setting it might not be a problem at all. 

 

[piotrekfronc]

So now... waiting to clear orders Waiting soon to be finished?

 

[piotrekfronc]

So the filter is set finally to opa1612, very interesting choice (every RSA Intruder owner should know the signature).

 

[T.R.A.N.C.E.]

^ Not exactly interesting though, several other daps use it, even X5/x5ii uses OPA1612 as filter. It's a good opamp though. A really good filter is AD8620, very balanced sound but that costs over twice as much. Another really good one is OPA2107.

 

[landroni]

  ^ Not exactly interesting though, several other daps use it, even X5/x5ii uses OPA1612 as filter. It's a good opamp though. A really good filter is AD8620, very balanced sound but that costs over twice as much. Another really good one is OPA2107.

A bit off-topic here, but I've always been curious about this. The E12DIY comes with:
AD8620
OPA1611
OPA604
AD797

 
So far I've been happy using the same opamp as in stock E12 --- OPA1611 (a review described it as "balances near-neutrality with a touch of bass warmth and lots of detail and clarity"). Is AD8620 better?
 
PS Can one plug the OPA2107 in the E12DIY as is, without soldering or other modifications to the casing?

 

[T.R.A.N.C.E.]

Yes OPA2107 can plug into e12diy. But honestly in most cases it comes down to what sound you prefer rather than the technical specs, one opamp might have better specs than another or be more expensive, but it doesn't mean you will like it's sound sig. Implementation is also important, amps with interchangeable opamps don't necessarily get the best out of every opamp, you need to find opamps that work well with the amp (by trial and error). 

 

[twister6]

  ^ Not exactly interesting though, several other daps use it, even X5/x5ii uses OPA1612 as filter. It's a good opamp though. A really good filter is AD8620, very balanced sound but that costs over twice as much. Another really good one is OPA2107.

 
I'm so used to seeing sub $1 components, didn't realize these precision amps could be so expensive.  You are right, 1612 is about $7.45, while 8620 is $15.35.  All this adds up to raise the bill of material cost.

 

[Vartan]

         ^ MUSES 8920

 

[landroni]

  Some pics from their Facebook page


 

 


 

@JamesFiiO Are there any specs published for the amp modules? Which op amps and buffers will the X7 feature? (They're not described in the first post...)

 

[landroni]

Does anyone have a photo of the top of X7? At the bottom I can see there is Headphone Out and USB connection, but I'd like to see how the LineOut and CoaxialOut look like... 
 

 

[Vartan]

  Does anyone have a photo of the top of X7? At the bottom I can see there is Headphone Out and USB connection, but I'd like to see how the LineOut and CoaxialOut look like... 
 

 

[landroni]

 

Thanks. This alternates between LineOut and CoaxialOut, correct?