Deploying a US audio system inside a zero-wireless, 230V facility
At Advanced Computers, some installations are straightforward. But this wasn’t one of them. When a client came to one of our Auckland branches needing a US-manufactured audio system deployed inside a high-security facility, they brought with them a list of constraints that ruled out most standard approaches — no wireless of any kind, no external data ports, and a mains voltage that the system wasn’t built for. What followed was a methodical hardware modification that had to satisfy both electrical safety standards and a strict security compliance framework, with zero room for shortcuts.
The challenge
A client operating a high-security government-adjacent facility needed a specialised US-manufactured audio system installed on-site. The facility enforced a strict no-wireless policy — Bluetooth, Wi-Fi, and any external data input were prohibited under their security framework. The system also ran on 110V, incompatible with New Zealand’s 230V standard.
Advanced Computers’ electronics repair technicians needed to solve the following four distinct technical and compliance problems simultaneously before the system could be safely deployed:
- Voltage incompatibility — 110V US system vs NZ 230V supply, requiring certified conversion
- Built-in Bluetooth — internal module not permitted under the facility’s security policy
- USB access risk — exposed ports created an unauthorised data access vector
- Auditability — all modifications needed to be documented for compliance review
Our approach
Our Auckland technicians — with over a decade of experience in specialist hardware modification and electrical compliance work in New Zealand — carried out a full system modification before installation. Each step was documented and labelled for the client’s audit trail.
- Installed a certified step-down transformer to safely convert 230V to the system’s required 110V, meeting NZ electrical standards and eliminating any risk of voltage damage to the unit.
- Isolated and physically disabled the internal Bluetooth module, preventing any wireless transmission in compliance with the facility’s zero-wireless policy.
- Physically removed all USB ports from the unit to eliminate the external data input risk entirely — not just disabled in software, but removed at the hardware level.
- Labelled all modified components with clear compliance markings, giving the facility’s security team a documented record of every change made for internal auditing.
Outcome
Advanced Computers successfully deployed the system within the required timeframe and passed all internal compliance checks. The client confirmed the installation met both operational performance and security requirements without compromise.
This electronics repair project is one of several we’ve completed for clients operating in environments with strict connectivity controls — including defence contractors, financial institutions, and government facilities. If your environment has non-standard compliance requirements, Advance Computers has the experience to engineer a solution that meets them.
This project falls under our electronics repair service — if your device needs specialist modification or compliance work beyond a standard fix, we have the experience to handle it.