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Green lights mean all channels are go ! What do you do in lockdown whilst waiting for Ultimate-Preamp DSP boards to be manufactured by our production house ? Answer is to write an operating system for our multi-channel power amp. This time we are cutting code for an STM32 M3 ARM micro and not a SHARC DSP. So far everything is going to plan.

• Power Amp Mains Sequencing â€" tick !
• Main-switch and trigger-IO monitoring and relaying â€"  tick !
• LED display driver â€" tick !
• Real-time Amplifier/clipping/DC error/Over-Temp-Alarm and general fault monitoring and display â€" tick !
• Thermal management â€" in testing phase !

The custom all stainless steel case is earmarked for a customer who along with the still to be delivered Ultimate Preamp Plus (sorry for the delays) will be using it in a custom active speaker system of their own design. Using all Hypex NCore amplifier modules in a custom case that matches the Preamp we found the Hypex modules to be the ideal choice for this application with no shortage of power and performance.

The wiring looms require some thought as you don't really want to mix up the high current mains and speaker wiring with the sensitive small signal wiring

Yes lots of assembly required !

Nice little package from Mouser arrived !

Cheers
David

The Hypex Ncore amplifier modules used in this build consist of:-

1 x NC502MP
2 x NC252MP
2 x HF100

Cheers
David

Zee boards have arrivethed !

A present from DHL Partially assembled boards from our prototype assembly service. The rest of the assembly to be done by yours truly 

Cheers
David

We are always on the lookout for new and useful test equipment to add to our lab, and one of the things we have always wanted was a decent audio analyser. Although we have a couple of external sound cards which have been quite useful, nothing beats a dedicated audio analyzer, so when a Prism dScope III came along at the right price we jumped at the chance and purchased it. The Audio-Precision APx555 at $28,000 USD was way out of our budget and save for a few dB less dynamic range, in terms of over all features and customization, the dScope III offers everything we need a plus a whole lot more. We have already used it to chase down a few illusive issues in our existing preamp design and incorporated the changes in our new Preamp designs. Such is the benefit of having access to the right test gear

Please use this forum to discuss anything regarding the Analog-Precision Ultimate-Amplifier.

Please use this forum to discuss anything regarding the Analog-Precision Ultimate-Preamplifier.

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