DIY Class A/B Amp The "Wolverine" build thread

Pretty sure:
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I compared a Cobra s2 to a SMPS1200 on an existing class AB amplifier I ripped the (noisy AF) linear supply out of. The Hypex was slightly quieter, 0 to 96khz. Both were very quiet and leagues ahead of the linear supply that was in there. The Cobra has more (and easier) convenience options however.

Rail voltages for this amp were +-82V though so YMMV. Both 5W 1 channel connected to 8R load.

Cobra (click to enlarge)

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Hypex (click to enlarge)

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This measurement is in Chassis with a Cobra S2 +-63v. This is with th 0v tied to the T-Ground PCB.

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Only issue with hypex is the limited output voltage offerings, and truthfully I try to help out independents vs corporations as much as I can. The PCB's are designed by @stuartmp. I would also like to know @Cresnet opinion if he can weigh in here on the exact differences of Hypex vs Cobra if he has time so we are all clearer on the subject, as I think there is more to it.
 
Only issue with hypex is the limited output voltage offerings, and truthfully I try to help out independents vs corporations as much as I can. The PCB's are designed by @stuartmp. I would also like to know @Cresnet opinion if he can weigh in here on the exact differences of Hypex vs Cobra if he has time so we are all clearer on the subject, as I think there is more to it.
I highly appreciate your efforts.

As you can see, all SMPS I offer uses the highest grade components, in addition to many functions that are not available in other SMPS units in the market.

For example..

1- Active PFC
2- Onboard 3W standby power supply
3- Trigger input
4- Standby control
5- 0.2W power consumption in standby mode
6- Higher grade components
7- Any output voltage is possible
8- Output voltage will remain the same beside your AC-LINE variation
9- Accepts up to 80000uF at the output
10- Onboard inrush current control and soft start

I believe that all of the above will come at some additional cost.

Groupbuy discount is possible if the quantity is above 20 PCs

Thank you
 
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Thanks, much appreciated. I want to chime in on the PFC this is one area the cobra really shines, I tested down to 80V AC line voltage and the output voltage held solid. So if you live in an area with bad / sagging AC this does make a huge difference.
 
@fireanimal I thought the point of UMS was that if you have a UMS drilled enclosure, then you dont have to drill or tap anything if you build another (UMS compatible) amp in that enclosure. It makes all the sense in the world for someone like me who does not have ANY metal tools, skills or workshop.
 
Correct if you are using TO3P outputs they bolt right on no issues with ef3-3 boards. Ef3-4 have a couple mounting holes that need drilled and the option of drilling to mount the drivers there as well. It's all in the build guide and the ums mounting near the end of the guide. TO264 are a larger package that's why they need to be located further from the board and require drilling.