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VentureCraft Go-DAP DAC/Amp /Series: Go-DAP X (13th May 2012) and Go-DAP TT (21st May 2013) - Page 29

post #421 of 506
Quote:
Originally Posted by Bostonears View Post

The Raytheon 6111 tube is also used in ALO's The Continental portable headphone amp, as described in this thread. Note that the tube is soldered in place. It's a long life tube, so you won't have to change it very often (if ever), but you won't be tube rolling.

On VentureCraft website, it said that the tube can be replaced, since they use socket type. Don't know the details about that yet but they might follow the same method that they employ in DD Socket 1 with OPA627SM. They solder OPA627SM on adaptor to make it DIP.


Edited by mtthefirst - 5/22/13 at 6:58am
post #422 of 506

As I said earlier (and mtthefirst emphasised), the advert itself suggests that the valve itself is rollable. 

post #423 of 506

Got some reply from VentureCraft. They used AK4353 for iDevice DAC section and probably PCM DAC in PC section. It's seem that the design is based on Go-Dap X not the Typhoon. That's why they are lack the functionality like Typhoon.

post #424 of 506
Originally Posted by mtthefirst View Post

On VentureCraft website, it said that the tube can be replaced, since they use socket type. Don't know the details about that yet but they might follow the same method that they employ in DD Socket 1 with OPA627SM. They solder OPA627SM on adaptor to make it DIP.

If the Raytheon 6111 is soldered onto an adapter, any replacement 6111 tube would also have to get soldered onto an adapter (unlike opamps, where many are designed to plug into sockets).

 

Originally Posted by shigzeo View Post

As I said earlier (and mtthefirst emphasised), the advert itself suggests that the valve itself is rollable. 

 

6111 tubes have flexible leads, not firm pins. Not sure how VentureCraft would design a device with it intended to be "rollable", although I suppose you could cut the leads short and flex them all just right to stuff 'em in a socket. I guess we'll have to wait for someone to crack open the amp.

 

Here's how that tube looks inside ALO's amp.

post #425 of 506

I have Go Dap X with LME49860 + impedance down to 10 and I use Heir 8.a's and JH16's with this setup.

I am very tempted at getting a MSAK100. 

My question is could anyone tell me if this would be a big step up in terms of layering, details and soundstage in music.

Is it even worth the change over ? 

post #426 of 506
Quote:
Originally Posted by bebop7 View Post

I have Go Dap X with LME49860 + impedance down to 10 and I use Heir 8.a's and JH16's with this setup.

I am very tempted at getting a MSAK100. 

My question is could anyone tell me if this would be a big step up in terms of layering, details and soundstage in music.

Is it even worth the change over ? 

No one know it yet. VentureCraft will only make 100 of Go-Dap TT for the first batch as 6111 is very hard to find. We have to wait for some head-fier get their hand on this. Probably Anakchan might be able to try it at e-earphone when they have it display their. He also have X with LME49860 and 10Ω OI the same setup as you.

post #427 of 506

Spent some time with the new amp at e-earphone's headphone festival over the weekend. Very nice. Finally. Impressive battery life, socketed (same as most socketed op-amps) valves (inidividually soldered into the socket pins), lots of power.

post #428 of 506
Quote:
Originally Posted by shigzeo View Post

Spent some time with the new amp at e-earphone's headphone festival over the weekend. Very nice. Finally. Impressive battery life, socketed (same as most socketed op-amps) valves (inidividually soldered into the socket pins), lots of power.

So, the valves is not easily replaceable for regular people that don't have solder skill. How does TT sound compare to Typhoon?

post #429 of 506
No it's plug and play. It is already soldered into a removable dimm. You just shove it in. I believe they will sell several different flavours for different sounds.
post #430 of 506

I'm having an issue with my Vamp and I was wondering if anyone has experienced a similar issue with the GoDAP4.

 

When in the off position, it will not charge my Iphone.  I connected to my PC and it synchs with Itunes, but I receive a yellow message on my Iphone stating that this device does not support charging.

 

I have tried resetting as well as powering off my Iphone several times, but no change.  Lots of issues with the Vamp as this is a replacement unit, very frustrating.   My Verza/GoDAPX has been issue free.
 

post #431 of 506
Thread Starter 
Quote:
Originally Posted by Craigster75 View Post

I'm having an issue with my Vamp and I was wondering if anyone has experienced a similar issue with the GoDAP4.

When in the off position, it will not charge my Iphone.  I connected to my PC and it synchs with Itunes, but I receive a yellow message on my Iphone stating that this device does not support charging.

I have tried resetting as well as powering off my Iphone several times, but no change.  Lots of issues with the Vamp as this is a replacement unit, very frustrating.   My Verza/GoDAPX has been issue free.

 
That's normal. The Go-DAP 4.0/Vamp needs to be "on" to charge & when finish charging, needs to be switched off. Yes I know it's idiosyncratic.
post #432 of 506
Quote:
Originally Posted by AnakChan View Post


That's normal. The Go-DAP 4.0/Vamp needs to be "on" to charge & when finish charging, needs to be switched off. Yes I know it's idiosyncratic.


Although in the quick reference card that comes with Vamp it states to set in the off position for Iphone charging.

post #433 of 506
Quote:
Originally Posted by AnakChan View Post

That's normal. The Go-DAP 4.0/Vamp needs to be "on" to charge & when finish charging, needs to be switched off. Yes I know it's idiosyncratic.

On the one hand this is a minor issue but when literally all other devices work in a different fashion (i.e. off to charge) it is quite an annoyance.

I want a portable DAC to pair with my C5 and the only options are the CLAS and the DD afaik. I want to get a DD but that functionality quirk may be a deal-breaker. Why would they implement the DD in this weird way?
post #434 of 506
Thread Starter 
Quote:
Originally Posted by Craigster75 View Post


Although in the quick reference card that comes with Vamp it states to set in the off position for Iphone charging.

 

That is interesting. A fault in the documentation I'd guess. When I had the VAmp, it operated exactly like the Go-DAP 4.0. The only differences were the pre-fixed EQ tweak (the Go-DAP's ASR vs VQ mode or whatever that's called in the VAmp).

 

Quote:
Originally Posted by gkanai View Post


On the one hand this is a minor issue but when literally all other devices work in a different fashion (i.e. off to charge) it is quite an annoyance.

I want a portable DAC to pair with my C5 and the only options are the CLAS and the DD afaik. I want to get a DD but that functionality quirk may be a deal-breaker. Why would they implement the DD in this weird way?

 

This is -entirely- speculation 'cos VentureCraft has had this since the 4.0 - whether it was rushed out the door to compete with the then HP-P1 or original CLAS, or some weird circuit design that got into production and too late to back out, only they know. Presumably instead of redesigning with their subsequent models, they stuck to their fundamental design and just tweaked for each product.

 

This is where the Typhoon could be interesting since it's using a different DAC chip which means they do need to do quite a bit of redesign.

post #435 of 506

I have some impressions of the TT at Ω. It's my Day 1 impressions of e-Earphone's Sprint 2013 porta festival. 

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