Current Status
xLoff - 2x IPS (CFA-XH), 2x 5P OPS - Delivered
mrsavage - 6x IPS (Wolverine) - Delivered
scalpel - 2x IPS (Symasui), 2x 2P OPS - Shipped - Postal Strike at Destination
arthur - 4x IPS (Wolverine) - Shipped
Bangla H - 2x IPS (CFA-XH), 2x IPS (Symasui), 2x 2P OPS - Shipped
vitalica - 2x IPS (Wolverine), 2x 5P OPS - Order Updated, Shipped
buzzforb - 2x IPS (CFA-XH), 2x 5P OPS - On Hold
Pre-order list for Spooky IPS and Mini OPS:
quan - 2x IPS (Wolverine), 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
mrsavage - 8x IPS (Spooky), 8x Mini OPS - Request Acknowledged
gwrskien - 4x IPS (Spooky), 6x Mini OPS - Request Acknowledged
tjencks - 2x IPS(Spooky), 5x Mini OPS - Request Acknowledged
arthur - 8x IPS (Spooky), 8x Mini OPS - Request Acknowledged
Jim Hamley - 4x IPS (Spooky), 4x Mini OPS - Request Acknowledged
vitalica - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
jwilhelm - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
xLoff - 2x IPS (CFA-XH), 2x 5P OPS - Delivered
mrsavage - 6x IPS (Wolverine) - Delivered
scalpel - 2x IPS (Symasui), 2x 2P OPS - Shipped - Postal Strike at Destination
arthur - 4x IPS (Wolverine) - Shipped
Bangla H - 2x IPS (CFA-XH), 2x IPS (Symasui), 2x 2P OPS - Shipped
vitalica - 2x IPS (Wolverine), 2x 5P OPS - Order Updated, Shipped
buzzforb - 2x IPS (CFA-XH), 2x 5P OPS - On Hold
Pre-order list for Spooky IPS and Mini OPS:
quan - 2x IPS (Wolverine), 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
mrsavage - 8x IPS (Spooky), 8x Mini OPS - Request Acknowledged
gwrskien - 4x IPS (Spooky), 6x Mini OPS - Request Acknowledged
tjencks - 2x IPS(Spooky), 5x Mini OPS - Request Acknowledged
arthur - 8x IPS (Spooky), 8x Mini OPS - Request Acknowledged
Jim Hamley - 4x IPS (Spooky), 4x Mini OPS - Request Acknowledged
vitalica - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
jwilhelm - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
Bonus!
Board house made an error to our benefit - I requested HASL as usual and they inadvertently produced Spooky in a gold immersion finish. These are not yet in my possession since there were other boards in the order that aren't complete yet. The vendor just sent a picture showing their mistake for me to approve. It's not a great pic, but the finish is definitely in gold
. Naturally I did not request them to be made again in the correct finish.
Board house made an error to our benefit - I requested HASL as usual and they inadvertently produced Spooky in a gold immersion finish. These are not yet in my possession since there were other boards in the order that aren't complete yet. The vendor just sent a picture showing their mistake for me to approve. It's not a great pic, but the finish is definitely in gold
Attachments
Jason I need your help please
Here is these Cordel Ultimate Audio Amplifier from post 4465 posted by OS.
Schematics
I would love to try out these OPS circuit with the CFA-XH.
Can I hook these up with that IPS.
Please take a look and let me know.![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I already draw the layout
, it would be great if I can build it knowing it will functioning properly.![scratch1 :scratch1: :scratch1:](https://files.diyaudio.com/forums/images/smilies/scratch1.gif)
One more question C17 - 39pF where I do connect, I can not figure it out.
Thank you Jason, I promise I will not bother anymore with circuit from other website!
Greetings Gabor
By the way the layout must be double checked even if we find out C17 where it goes.
If someone will decide to use it please be aware about that!
Here is these Cordel Ultimate Audio Amplifier from post 4465 posted by OS.
Schematics
I would love to try out these OPS circuit with the CFA-XH.
Can I hook these up with that IPS.
Please take a look and let me know.
I already draw the layout
![scratch1 :scratch1: :scratch1:](https://files.diyaudio.com/forums/images/smilies/scratch1.gif)
One more question C17 - 39pF where I do connect, I can not figure it out.
Thank you Jason, I promise I will not bother anymore with circuit from other website!
Greetings Gabor
By the way the layout must be double checked even if we find out C17 where it goes.
If someone will decide to use it please be aware about that!
Attachments
There should be no reason to think one of the SlewMaster IPSs wouldn't work with a different OPS.
Capacitor C17 goes to ground. The lifted audio ground. Did you look at the other schematics on the site? The IPS schematic that goes with the OPS you want to use held your answer
.
This is a group buy thread, so I'd prefer to keep on task here. The article says there is a thread for this amplifier, maybe there are some other useful resources there if you can find it. Thanks.
Capacitor C17 goes to ground. The lifted audio ground. Did you look at the other schematics on the site? The IPS schematic that goes with the OPS you want to use held your answer
This is a group buy thread, so I'd prefer to keep on task here. The article says there is a thread for this amplifier, maybe there are some other useful resources there if you can find it. Thanks.
Currently...
I'm hoping to be notified of shipment for the current order later in the week. Thanks for everyone being patient. A week long national holiday in China has made the wait for these seem very long. As per usual, I will do a QC build and if all is well folks will begin getting PMs with details. Oh, and thanks to everyone for letting me know their packages have been received so far.
arthur - 4x IPS (Wolverine) - Delivered
Bangla H - 2x IPS (CFA-XH), 2x IPS (Symasui), 2x 2P OPS - Delivered
scalpel - 2x IPS (Symasui), 2x 2P OPS - Shipped - Postal Strike at Destination
vitalica - 2x IPS (Wolverine), 2x 5P OPS - Order Updated, Shipped
buzzforb - 2x IPS (CFA-XH), 2x 5P OPS - Deleting from current list
Pre-order list for Spooky IPS and Mini OPS:
quan - 2x IPS (Wolverine), 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
mrsavage - 8x IPS (Spooky), 8x Mini OPS - Request Acknowledged
gwrskien - 4x IPS (Spooky), 6x Mini OPS - Request Acknowledged
tjencks - 2x IPS(Spooky), 5x Mini OPS - Request Acknowledged
arthur - 8x IPS (Spooky), 8x Mini OPS - Request Acknowledged
Jim Hamley - 4x IPS (Spooky), 4x Mini OPS - Request Acknowledged
vitalica - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
jwilhelm - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
Bangla H - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
e_fortier - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
Just so folks are aware, I have currently on hand:
4 pairs of the 5P OPS
5 pairs of the 2P OPS
7 pairs of Wolverine IPS
3 pairs of Symasui IPS
1 pair of CFA-XH IPS
If any of the above is of interest, feel free to request here or in a PM. Looking forward to checking out Spooky and the Mini OPS.
Thanks.
I'm hoping to be notified of shipment for the current order later in the week. Thanks for everyone being patient. A week long national holiday in China has made the wait for these seem very long. As per usual, I will do a QC build and if all is well folks will begin getting PMs with details. Oh, and thanks to everyone for letting me know their packages have been received so far.
arthur - 4x IPS (Wolverine) - Delivered
Bangla H - 2x IPS (CFA-XH), 2x IPS (Symasui), 2x 2P OPS - Delivered
scalpel - 2x IPS (Symasui), 2x 2P OPS - Shipped - Postal Strike at Destination
vitalica - 2x IPS (Wolverine), 2x 5P OPS - Order Updated, Shipped
buzzforb - 2x IPS (CFA-XH), 2x 5P OPS - Deleting from current list
Pre-order list for Spooky IPS and Mini OPS:
quan - 2x IPS (Wolverine), 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
mrsavage - 8x IPS (Spooky), 8x Mini OPS - Request Acknowledged
gwrskien - 4x IPS (Spooky), 6x Mini OPS - Request Acknowledged
tjencks - 2x IPS(Spooky), 5x Mini OPS - Request Acknowledged
arthur - 8x IPS (Spooky), 8x Mini OPS - Request Acknowledged
Jim Hamley - 4x IPS (Spooky), 4x Mini OPS - Request Acknowledged
vitalica - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
jwilhelm - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
Bangla H - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
e_fortier - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
Just so folks are aware, I have currently on hand:
4 pairs of the 5P OPS
5 pairs of the 2P OPS
7 pairs of Wolverine IPS
3 pairs of Symasui IPS
1 pair of CFA-XH IPS
If any of the above is of interest, feel free to request here or in a PM. Looking forward to checking out Spooky and the Mini OPS.
Thanks.
Hello Jason,
I would like to request:
1. CFA-XH x 2
2. NAD-S x 2
3. 5P OPS x2
Thanks a lot!
John
Hi John,
I don't have the NAD-S IPS at this time, I actually had left it for last. I will very likely skip that version and work towards the latest iteration, the NAD-BH. This will be the first of the Braxandall SuperPair / Hawksfors Cascode IPSs. I suspect I'm a some time away form having finished artwork for it. Let me know if you want to sit tight and wait until some version of the NAD based design is available or if you would like the last pair of CFA-XH and the 5P OPS now and wait for the next IPS.
Hi John,
I don't have the NAD-S IPS at this time, I actually had left it for last. I will very likely skip that version and work towards the latest iteration, the NAD-BH. This will be the first of the Braxandall SuperPair / Hawksfors Cascode IPSs. I suspect I'm a some time away form having finished artwork for it. Let me know if you want to sit tight and wait until some version of the NAD based design is available or if you would like the last pair of CFA-XH and the 5P OPS now and wait for the next IPS.
Hello Jason,
Please cancel NDA-S for me.
Revise my request as following:
1. CFA-XH x 2pcs
2. 5P OPS x 2pcs
Thanks a lot!
John
My latest order is now on the move according to tracking information...
scalpel - 2x IPS (Symasui), 2x 2P OPS - Shipped - Postal Strike at Destination
vitalica - 2x IPS (Wolverine), 2x 5P OPS - Order Updated, Shipped
John Wu - 2x IPS (CFA-XH), 2x 5P OPS - Shipped
Pre-order list for Spooky IPS and Mini OPS:
quan - 2x IPS (Wolverine), 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
mrsavage - 8x IPS (Spooky), 8x Mini OPS - Request Acknowledged
gwrskien - 4x IPS (Spooky), 6x Mini OPS - Request Acknowledged
tjencks - 2x IPS(Spooky), 5x Mini OPS - Request Acknowledged
arthur - 8x IPS (Spooky), 8x Mini OPS - Request Acknowledged
Jim Hamley - 4x IPS (Spooky), 4x Mini OPS - Request Acknowledged
vitalica - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
jwilhelm - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
Bangla H - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
e_fortier - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
Just so folks are aware, I have currently on hand:
3 pairs of the 5P OPS
5 pairs of the 2P OPS
7 pairs of Wolverine IPS
3 pairs of Symasui IPS
scalpel - 2x IPS (Symasui), 2x 2P OPS - Shipped - Postal Strike at Destination
vitalica - 2x IPS (Wolverine), 2x 5P OPS - Order Updated, Shipped
John Wu - 2x IPS (CFA-XH), 2x 5P OPS - Shipped
Pre-order list for Spooky IPS and Mini OPS:
quan - 2x IPS (Wolverine), 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
mrsavage - 8x IPS (Spooky), 8x Mini OPS - Request Acknowledged
gwrskien - 4x IPS (Spooky), 6x Mini OPS - Request Acknowledged
tjencks - 2x IPS(Spooky), 5x Mini OPS - Request Acknowledged
arthur - 8x IPS (Spooky), 8x Mini OPS - Request Acknowledged
Jim Hamley - 4x IPS (Spooky), 4x Mini OPS - Request Acknowledged
vitalica - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
jwilhelm - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
Bangla H - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
e_fortier - 2x IPS (Spooky), 2x Mini OPS - Request Acknowledged
Just so folks are aware, I have currently on hand:
3 pairs of the 5P OPS
5 pairs of the 2P OPS
7 pairs of Wolverine IPS
3 pairs of Symasui IPS
Baxandall Super-Pair / Hawksford Cascode IPSs
Got 2 of these .... no NAD , too many revisions of this IPS.
Kypton-C is VSSA based with nV offset , 90db psrr , 4-8ppm.
Kypton-V is "blameless" based with the same specs.
These two beat ALL my past designs in ALL respects. PM me.
A very matched pair to evaluate CFA/VFA differences (rumble ?).
OS
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