A New Take on the Classic Pass Labs D1 with an ESS Dac

[pidesd]

habsrock93 1
compressit 1
CeeVee 2
flocchini 1
RichLund 1
Nikola Krivorov 1
Greg Stewart 2
qusp 2
frozen wing 1
neb001 2
merlin el mago 2
lauret 2
igwt 2
ichiban 1
DaveM 1
fitzfish 2
Yunick 1
DiyFan 1
Jacques Merde 2
stephen1212 2
dggs 1
NicMac 1
pierrequiroule 1

minus 2 for me

Total 33 boards

it would have been nice to have a D1-only board too with the fets and resistors on the side for more custumization and wider appeal for maybe half the price. Or a breakeable board...

again sorry

[ichiban]

Originally Posted by pidesd

habsrock93 1
compressit 1
CeeVee 2
flocchini 1
RichLund 1
Nikola Krivorov 1
Greg Stewart 2
qusp 2
frozen wing 1
neb001 2
merlin el mago 2
lauret 2
igwt 2
DaveM 1
fitzfish 2
Yunick 1
DiyFan 1
Jacques Merde 2
stephen1212 2
dggs 1
NicMac 1
pierrequiroule 1

minus 1 for me

Total 32 boards

[merlin el mago]

Thank you ichiban to correct the total boards.

[slartibartfasst]

habsrock93 1
compressit 1
CeeVee 2
flocchini 1
RichLund 1
Nikola Krivorov 1
Greg Stewart 2
qusp 2
frozen wing 1
neb001 2
merlin el mago 2
lauret 2
igwt 2
DaveM 1
fitzfish 2
Yunick 1
DiyFan 1
Jacques Merde 2
stephen1212 2
dggs 1
NicMac 1
pierrequiroule 1
Slartibartfasst 1

Total 33 boards

[dhole]

Am i correct in thinking that this isn't a dac board at all but an output stage for an ess dac ?

[qusp]

you are correct, its just an IV stage, power supply and spdif MUX for ESS dacs

[opc]

Hi Guys,

Sorry for dropping this over the past week... it has been a busy one for me job-wise. I've got a pretty big career change on the go, so the next few weeks are going to be hectic.

Just the same, I'd like to get all these Gerbers sent out so that I can focus on other things while the boards are being made.

I've noticed a few people drop out of the board purchase, so I'm going to order 40 and call it at that. I'll see what the PCB fab can do for pricing with that number of boards.

I hope the prices on the BOM didn't scare anyone off, since they're a little on the high side. If you were on a tight budget, you could easily build up this PCB for less than $50 if you don't splurge on caps and resistors. The basic parts are quite cheap, and like I said, if you don't want to build the digital input section or PSU, then things get even cheaper.

I already offered qusp the option of chopping off the PSU part which is indicated by the line across the board just below the PSU output caps. If anyone else wants this done, I can use the shear we have at work to make a nice clean perfect cut, and then send out both parts of the board. You can use your own PSU that way, and use the cutoff portion for something else if need be.

As for output coupling caps, I think I'm going to leave them the way they are. If you want to use giant size polypropylene caps for the outputs, then it's quite easy to solder one end on the PCB and the other directly to the XLR output jacks. All you'd need is to mount the two 100K resistors on the outputs up to XLR connector instead of the PCB.

As for group buys, I'll probably offer up all the smaller and cheaper parts (everything SMD) as an option with the boards. I'm not going to handle any of the more expensive parts like the Caddock resistors or the Linear regulators. If people want to organize their own buys for that stuff, then that would be best.

Anyone interested in a group buy for the SMD parts on the boards, please let me know and I'll get some pricing together.

The boards are going out on Monday, and should be in the following Monday when I'll start sending them out. Any group buy parts will have to be ordered over next week.

Cheers,
Owen

[merlin el mago]

I'm interested in SMD parts GB, it's possible to be pre-mounted on the pcb?

Merlin el Mago 2 sets SMD parts

Cheers

Felipe

[Jacques Merde]

[QUOTE=opc;2328269
Anyone interested in a group buy for the SMD parts on the boards, please let me know and I'll get some pricing together.
Owen[/QUOTE]

Yes, I'm interested in 2 sets.

Thanks,

[flocchini]

Owen:

I will be using my own supplies and would like the qusp mod if possible

Thanks for all you have done

Best

Bob