[gaz2613]

The OPA2107's are out of this world. Biggest soundstage I've heard so far without compromising detail, clarity, and most of all punch. There seems to be an improvement in bass as well. Wow, truly truly stunning! Like the LM833N it has warmth and is very immersive. Favorite so far!

I thought you would like that one. Also a really nice one is the Analog Devices AD746JNZ. You will not be disappointed.

 

[Jimmy24]

I will be sure to check that one out So far the OPA2107's make HD 650's sound like HD 800's but with more warmth and bass without it being analytical. Clarity here so lifelike! Too good!!!

 

[Allanmarcus]

Finally done with the Wood WHAMMY! Here are the pics:

I'll add some rubber feet tonight, and it's done. I love it. Now come opamp rolling. It runs very cool.

 

[ashleydoormat]

Nice work there Allan! 15V is most definitely cooler than my 22V. I'm thinking of changing the transformer to 15V/18V to run cooler as I don't need that much voltage swing. Did you fabricate the wood yourself?

 

[nerone]

Finally done with the Wood WHAMMY! Here are the pics:

I'll add some rubber feet tonight, and it's done. I love it. Now come opamp rolling. It runs very cool.

Only one very minor thing to achieve perfection: change the screws for black ones. Otherwise, great job.

Nice work there Allan! 15V is most definitely cooler than my 22V. I'm thinking of changing the transformer to 15V/18V to run cooler as I don't need that much voltage swing. Did you fabricate the wood yourself?

He said on another forum that he did. First with inexpensive wood then the final version.

 

[Allanmarcus]

Only one very minor thing to achieve perfection: change the screws for black ones. Otherwise, great job.
He said on another forum that he did. First with inexpensive wood then the final version.

I'd love to get black screws, but my local hardware store doesn't sell them.

yep, but to b clear, the cheap pine was $3 for the piece and the "expensive" wood was $12 for the piece.

 

[nerone]

I'd love to get black screws, but my local hardware store doesn't sell them.

yep, but to b clear, the cheap pine was $3 for the piece and the "expensive" wood was $12 for the piece.

See, 4x the original price, way more expensive.

I also want to build one whammy, and as I want to add some funcions, like a DAC, I want to build with the board sideways, with the the psu section on the back, pot on the side with extension shaft.
For a quick solution I'm thinking about a Dragonfly using the Neutrik USB connector, similar to the RCA's you used.
I was thinking about finding one box just like yours, as I don't have the space to do mine at home.

I'll keep searching for the right box.

 

[nerone]

I'd love to get black screws, but my local hardware store doesn't sell them.

yep, but to b clear, the cheap pine was $3 for the piece and the "expensive" wood was $12 for the piece.

I just thought about one thing. Have you tried sharpie?

 

[Luckbad]

I used to spray paint my screws when I built computers with spray painted black cases (before they were available). Works rather well.

 

[JamieMcC]

Black nail polish works well

 

[Allanmarcus]

Thanks. All great ideas. I'm done black paint before, and it works well. I sort of forgot about that simple solution. I'll probably just color the from two screws.

BTW, I didn't show it in the picture, but the power button on the front lights up blue (it is a Pass designed amp) when the power is on.

 

[ashleydoormat]

@Allanmarcus Just curious here. What sort of power tools are needed to fabricate woods and make panels like yours?

 

[Allanmarcus]

@Allanmarcus Just curious here. What sort of power tools are needed to fabricate woods and make panels like yours?

Mitre saw. Router. Router table helps. Drill. Drill press helps. Jig saw

A local "maker" shop should have these items. Buy some cheap 4"x1" pine from a big box store and fabricate a prototype.

here's a rough outline of how I made it
https://sites.google.com/marcusfamily.info/diynotes/my-stuff/whammy-amp/whammy-3-wood

 

[JamieMcC]

@Allanmarcus Just curious here. What sort of power tools are needed to fabricate woods and make panels like yours?

If your considering doing something like this keep an eye out in the home depot or home discount stores, for wood chopping boards or place mats when your shopping often you can get some really good deals on inexpensive wood options suitable for such builds. Ikea is a great source

I used a couple of $5 Bamboo chopping boards to make a matching turntable plinth and phono stage enclosure out of.

 

[Jimmy24]

Has anyone here compared the Whammy to higher end amps? With a OPA2107 this beast is better than some $1K+amps I've heard before and not by a small margin either.