Topic: slimline dac with the AK4396, and an XMOS USB receiver (>= 384 PCM/64/128 DSD) (Read 17065 times)

fishski13 · « **Reply #70 on:** January 03, 2015, 03:41:30 AM »

that board looks like a bitch to stuff.

Hroðulf · « **Reply #71 on:** January 03, 2015, 09:05:44 AM »

Quote from: fishski13 on January 03, 2015, 03:41:30 AM

that board looks like a bitch to stuff.

More bitch than the QRV08 amp stage?

MisterRogers · « **Reply #72 on:** January 03, 2015, 12:49:54 PM »

Yea, the resister arrays will bring you to your knees if you're not experienced with them. This definitely isn't a 'starter' board.

Hroðulf · « **Reply #73 on:** January 03, 2015, 04:08:28 PM »

Any news on that ballpark price?

MisterRogers · « **Reply #74 on:** January 03, 2015, 04:22:22 PM »

Soon I hope; my partners at JLSounds (Joro & Lyuben) need to set this. Should be before EOD though.

fishski13 · « **Reply #75 on:** January 03, 2015, 05:10:09 PM »

Quote from: Hroðulf on January 03, 2015, 09:05:44 AM

More bitch than the QRV08 amp stage?

maybe, maybe not. it appears to be a pretty complex BOM. other than the chip to the middle right, the pitches look easy. i'm not sure what resistor arrays MR is referring to.

Hroðulf · « **Reply #76 on:** January 03, 2015, 05:53:17 PM »

Yeah, that's the same thing I though. If or rather when I'm building this, I could use a local soldering shop to cook on the chips and leave the rest to me.

As for resistor arrays, they look like this, Fish -

Pretty sure that they also need some extra fine loving. That being said, they shouldn't mind extra heat.

Btw, MisterRogers - if I opt to get the board set sans parts and assembly, how would I go about getting the firmware?

fishski13 · « **Reply #77 on:** January 04, 2015, 04:09:50 AM »

i've never soldered a SMD resistor array, but the pitches look easy enough. depending on the traces and ground plane, i would guess to dab some extra flux, turn up the solder temp a bit, and melt/sizzle

. if you can build a y2 or QRV08, this should be OK. personally, i would make sure you have some solderwick, flux, and an iron tip 1mm or less.

if i lived in Colorado, "EOD" = whenever i get off the slopes after a day of eating pow-pow and drinking a growler of Colorado's finest brews at established, legal joints.

MisterRogers · « **Reply #78 on:** January 04, 2015, 02:16:22 PM »

Yep, lots of flux and patience; not too tough. They can take the heat.

Re: firmware, we'll order the PIC's and I'll program them.

Listening to this DAC and working through firmware issues - I'm enjoying the new 32bit filters that AKM is using in the 4490/4495's. One particular one - I think it's Slow Delay Sharp, is quickly becoming a favorite. It works very well with the organic nature of this chip/dac.

MisterRogers · « **Reply #79 on:** January 05, 2015, 04:04:10 PM »

Hey All - so looks like the complete, built board with the control panel/LCD and the OEM USB receiver will go for about $550. To that you add case work and transformers and you're playing music. That price my change, but it's in the ballpark. That's pretty amazing really.

Author Topic: slimline dac with the AK4396, and an XMOS USB receiver (>= 384 PCM/64/128 DSD) (Read 17065 times)

fishski13

Re: slimline dac with the AK4396, and an XMOS USB receiver (>= 384 PCM/64/128 DSD)

Hroðulf

Re: slimline dac with the AK4396, and an XMOS USB receiver (>= 384 PCM/64/128 DSD)

MisterRogers

Re: slimline dac with the AK4396, and an XMOS USB receiver (>= 384 PCM/64/128 DSD)

Hroðulf

Re: slimline dac with the AK4396, and an XMOS USB receiver (>= 384 PCM/64/128 DSD)

MisterRogers

Re: slimline dac with the AK4396, and an XMOS USB receiver (>= 384 PCM/64/128 DSD)

fishski13

Re: slimline dac with the AK4396, and an XMOS USB receiver (>= 384 PCM/64/128 DSD)

Hroðulf

Re: slimline dac with the AK4396, and an XMOS USB receiver (>= 384 PCM/64/128 DSD)

fishski13

Re: slimline dac with the AK4396, and an XMOS USB receiver (>= 384 PCM/64/128 DSD)

MisterRogers

Re: slimline dac with the AK4396, and an XMOS USB receiver (>= 384 PCM/64/128 DSD)

MisterRogers

Re: slimline dac with the AK4396, and an XMOS USB receiver (>= 384 PCM/64/128 DSD)

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Author Topic: slimline dac with the AK4396, and an XMOS USB receiver (>= 384 PCM/64/128 DSD) (Read 17065 times)