CHORD ELECTRONICS DAVE
Apr 1, 2023 at 2:53 AM Post #24,331 of 25,572
Of course you might tweak TT2 with low-ESR capacitors, e.g. after the regulator, and discover a similar improvement as heard with DAVE.
I haven't measured inside TT2, but for sure its power section is much improved.

As far ive seen TT2 doesnt have Dave's LM307/317 regulators (which are a Bob Dobkin 1976 design) but a new discrete circuit. Its supercaps surely contribute to more stable voltage. Rob also said only after Dave and battery findings with 2Qute/Qutest he focussed more on PSU section and changed TT2's design on that. Ofc mainly looking to the RF side of things, but also to be able to deliver extra current for the amp section to drive speakers which he wanted for himself.

Anyway every circuit behaves different and Dave's one is really sensitive to stable voltage cause of its regulator design. My (and others) ears have confirmed that.
 
Apr 2, 2023 at 7:31 AM Post #24,332 of 25,572
I haven't measured inside TT2, but for sure its power section is much improved.

As far ive seen TT2 doesnt have Dave's LM307/317 regulators (which are a Bob Dobkin 1976 design) but a new discrete circuit. Its supercaps surely contribute to more stable voltage. Rob also said only after Dave and battery findings with 2Qute/Qutest he focussed more on PSU section and changed TT2's design on that. Ofc mainly looking to the RF side of things, but also to be able to deliver extra current for the amp section to drive speakers which he wanted for himself.

Anyway every circuit behaves different and Dave's one is really sensitive to stable voltage cause of its regulator design. My (and others) ears have confirmed that
You know a lot about this stuff, did you study electrical engineering in college?
 
Apr 3, 2023 at 8:53 AM Post #24,335 of 25,572
Apr 4, 2023 at 1:30 PM Post #24,336 of 25,572
Another interview with Rob has been posted yesterday. Lol😄 so we have to thank John for slipping a bit so Rob may talk abit about it.

Still i think its not a bad commercial strategy to instead of keeping the silence.. involve puplic opinions about some design choices (like Ibasso did with their DAP's)

 
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Apr 4, 2023 at 3:33 PM Post #24,337 of 25,572
Chord seems to have a bit of a form-factor issue. Folks who wanted the M Scaler with the DAVE had a mis-match. Now with a new DAVE Super Scaler coming out matching the DAVE, those with the TT2 who may want the new scaler will have another form-factor mismatch.
 
Apr 4, 2023 at 4:12 PM Post #24,338 of 25,572
Chord seems to have a bit of a form-factor issue. Folks who wanted the M Scaler with the DAVE had a mis-match. Now with a new DAVE Super Scaler coming out matching the DAVE, those with the TT2 who may want the new scaler will have another form-factor mismatch.
Well.. i could design a TT housing for the Dave scaler 🤪
 
Apr 6, 2023 at 7:19 PM Post #24,339 of 25,572
My XLR outputs on the Dave are not 100%. If the XLR cable is tugging it a bit it starts to crackle. If I jostle the XLR cable it produces some noise when listening to music.

@Reactcore is it easy to replace the XLR outputs on the Dave? If I was replacing them, any upgraded parts I should use? Thanks.
 
Apr 6, 2023 at 9:29 PM Post #24,341 of 25,572
I would send it in for warranty. They are in Texas. When I had an issue W/TT2 less than a week turnaround
Ok, will check. It is out of warranty. Bought it from a Headfier a year or 2 ago. See what they say.
 
Apr 7, 2023 at 1:58 AM Post #24,343 of 25,572
Its pretty easy board is out in 10min. And the xlr is good accessable. Replaced all caps yesterday on a friends dave.
 

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Apr 7, 2023 at 2:11 AM Post #24,344 of 25,572
A loose solder joint is most likely the issue rather than XLR sockets.
@Somatic
John has it right, think that too.
Just reheat the pins on the PCB

But first swap the cables.. if the problem moves channel with it.. its your plug
 
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