Many Years ago I designed and built a 10 channel microphone preamp (Details here). It was a great success and was used extensively in my studio (Cowbrook Mill) for years. Although it still works fine, I decided it was time to replace it. Over the last couple of months I have been roughing out a new design based around That Corporation's 1512 microphone preamp and 1646 balanced line driver ICs. And if I get the board layout right, the specification of this pre should put it in the 'Hi End' category. The cost of the components should be around £150 and once completed should quite easily compete with the likes of Focusrite / Mackie / RME. In fact, the RME Fireface 800 uses the That 1510 which is different only in it's gain structure from the 1512. I already have a 1u rack enclosure salvaged from a poorly designed (Under rated PSU) and now defunct ART reverb unit. So this will house the electronics. I have already designed, built and tested the VU meter boards. The gain controls and phantom power switches are also incorporated into these <img src="https://api.walster.co.uk/uploads/file-1753895865185-821677067.jpg" />My design in CAD ready for printing onto Inkjet film <img src="https://api.walster.co.uk/uploads/file-1753895913759-385853599.jpg" />Etched VU Meter Boards. Due to my A4 size restriction I designed the board in two halves.. <img src="https://api.walster.co.uk/uploads/file-1753896037555-653628628.jpg" />Trimmer resistors used for calibrating the meters <img src="https://api.walster.co.uk/uploads/file-1753896055516-767063940.jpg" />Completed boards <img src="https://api.walster.co.uk/uploads/file-1753896093964-632571418.jpg" />Testing <img src="https://api.walster.co.uk/uploads/file-1753896160734-963592665.jpg" />Front Panel drill guide template <img src="https://api.walster.co.uk/uploads/file-1753896177308-179575694.jpg" />Drilling the front panel <img src="https://api.walster.co.uk/uploads/file-1753896200687-228413571.jpg" />VU meter board fitted <img src="https://api.walster.co.uk/uploads/file-1753896228009-183779207.jpg" />Wiring <img src="https://api.walster.co.uk/uploads/file-1753896451873-802804482.jpg" />All Done..