SimonB

So after months of debating which DIY pre-amp kit would be my first I found out about Orphan Audio and their CA-227 pre-amp kit. It took me about 3 days to build and a lot of that time was waiting or getting extra parts that I didn't have (wire, knob, etc). The case is their modular case and it can house two of the pre-amps, I only have one right now because I wanted to try one out first.

I ran into an issue when I first powered it up: the sound was tiny and fuzzy sounding. I kept looking over all the solder points and connections in the pre-amp and then I decided to plug a working pre-amp into my A/D converter and record something and it did the same thing, it ended up being a bad microphone cable!

I'm really happy with the sound of the unit. The sound is very open and big sounding. There will definitely be a lot less mixing work to do with a pre-amp like this because it already has a record quality sound to it from the get-go.

For the power supply there is a Five Fish Studios 2448 kit running at +28V, -28V, +48V. The toroidal transformer is an Amveco mini-series 22V/35VA model.

Here are some pictures of the completed unit:





Bluzzi

Congrats Simon! I have been researching the Quad mike pre for a while and I am thinking of just getting the same KIT you did from Orphan Audio. They seem very well designed.

Can I ask you what the total cost for the pre parts were? (not case, power supply or knobs and XLRs ect.).
Thanks.

I see you left space for a second one!

Jim

CJ

frickin cool beans
rock on!
If I can't fix it, I can fix it so nobody else can!
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SimonB

Congrats Simon! I have been researching the Quad mike pre for a while and I am thinking of just getting the same KIT you did from Orphan Audio. They seem very well designed.

Can I ask you what the total cost for the pre parts were? (not case, power supply or knobs and XLRs ect.).
Thanks.

I see you left space for a second one!

Jim

It was $299 plus shipping for the pre kit that includes the CA-137 card.


 

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