HSFreelancer profile translated to English.
Back to original languageAbout Hanno
I am an audio developer with over 15 years of experience in analog circuit technology, DSP integration, and active loudspeaker systems. As managing director of ABACUS electronics UG, a company specializing in high-quality audio electronics based in Nordenham, I implement external projects specifically within the scope of my work at ABACUS.
This allows me to access a superbly equipped development and manufacturing environment – including our own measurement rooms for loudspeakers, DSP test systems, prototyping stations (THT, small-batch production), and professional video equipment for documentation or content creation.
Projects can be billed uncomplicatedly through the company if required – ideal for commercial customers. Hybrid services (technical implementation + training or video content) are also possible.
I live in Oldenburg and regularly work on-site at our company headquarters in Nordenham, where all project work can be implemented and tested.
Typical project formats:
– Review & optimization of analog audio circuits
– Development of active crossovers or DSP filters
– Prototyping of audio modules
– Measurement & signal flow analysis
– Creation of technical video tutorials (YouTube, internal training)
German
Native or bilingual
English
Conversational
Remote only
Primarily works remotely
Experience
- ABACUS electronicsManaging DirectorTECHJanuary 2023 - Today (3 years and 5 months)Nordenham, NI, GermanySince taking over the family business in 2022, I have been responsible for the strategic direction and technical development at ABACUS electronics UG – a specialized manufacturer of high-quality audio electronics, active loudspeaker systems, and amplifier modules.I develop and manage analog electronic circuits, active crossovers, DSP-based solutions, and the entire audio and power supply technology of our products – from concept to series production.In addition to my role as developer and project manager, I also coordinate production, supply chains, sales, and digital channels (including YouTube). I combine deep technical expertise with entrepreneurial responsibility.
- ABACUS electronicsSenior Director Product DevelopmentTECHApril 2004 - December 2022 (18 years and 8 months)Nordenham, NI, GermanyIn this position, I was significantly responsible for the product development and technical advancement of our audio electronics portfolio.My focus was on the circuit design of analog and digital audio technology (especially amplifier technology, DSP-based signal processing, and active loudspeaker systems), the supervision of prototypes, and the transfer to small and medium-scale production.I coordinated the technical implementation of new products, oversaw external manufacturing processes (e.g., SMD assembly), and developed long-term innovation strategies in close collaboration with our founder Karl-Heinz Sonder (my father).Even without formal management responsibility, I was operationally involved in many decision-making processes and increasingly took on leadership roles within the company.
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Education
- Bachelor of Engineering (B.Eng.)Carl von Ossietzky University Oldenburg2014Bachelor of Engineering (B.Eng.)