Thing’s have been quiet for a while on the new board front but i’m finally catching up. This is the PCB is the one used in the upcoming Raijin preamp. It is similar to the Mach2pre+ but designed for a 1U rackmount chassis with a few quality of life adjustments. The features are listed below. …
It took a little while longer to get around to posting part II of the Osiris Preamp build log and I didn’t take anywhere near as many photos as I intended as the build was somewhat rushed so this will just be a short collection of photographs. I still have to wire up the bright …
Here is a good overview demo of the Aurora Audio Jupiter preamp by Matt @ Numbskull Audio Production.
The chassis is finally in so here we go with the Osiris Preamp Build This is something I will most likely only be doing as fully built preamps or full preamp kits but that could change. First off a brief overview of the design, This is the front & rear panels once again custom made …
Well new to everyone other than myself. I’ve had these a little while now but have been very busy with prototyping and tweaking the Osiris Preamp that will be unveiled soon. First up there is a simple IRF output buffer for preamps. This is mostly to enhance boards that don’t have a cathode follower and …
As announced in a previous post I have worked on a new Aurora Audio PCB based on Bancika from DIYfevers excellent MKIIC+ layout. The boards were tested and adjustments made over the last few weeks and now the new batch is here and will be available at 4:30PM today. Also coming with these boards the …
Aurora Audio/DIYfever Mach2 Pre+ Available Today! Read More »
This one took a little longer than I wanted but hey life gets in the way! A very small final step in the completion of the Jupiter preamp. The DI (dry) guitar output. Essentially what is happening is the input of the DI board is tapped directly from the input jack as can be seen …
Aurora Jupiter Guitar Preamp Build Log: Part V: The final frontier! Read More »
Just a quick update following on from the Jupiter preamp build logs. The Jupiter Preamp PCB is now available to purchase this is based on the lead channel of the legendary SLO and demos will be following shortly. This Saturn PCB Set is to build a 2ch full amp version of the above. This one …
This instalment of the Aurora Jupiter preamp is a little less exciting than I planned as there isn’t really much new to see as the GEQ daughterboard covers up the focal point and the boost board I etched myself to try out the circuit. Onto the boost. This is a slightly modded zw44 to have …
This is the one where it actually starts to get interesting for most people. It LIVES! After some initial voltage testing and a shocking first start-up where a high gain preamp could only produce shimmering cleans we finally start moving. The clean issue above was due to the shielded cable on the gain pot shorting …
Aurora Jupiter Guitar Preamp Build Log: Part III Read More »
This second installation of the Aurora Jupiter Preamp build log is just a brief one! The main part is that the filament wiring has been done. It is much easier to remove the bracket from the chassis to do this. I opted to experiment a little this time and used a Dpdt switch to be …
