• Brand: Harmonic Harmony
• Series: AHD Reference
• Product type: Active electromagnetic conditioning device
• Architecture: Multi-stage
• Power: 12V vehicle electrical system
• Antenna: Integrated structure
• Deployment: 1–4 units
• Enclosure: Carbon fibre
• Installation location: Under-dashboard / stealth installation
• Signal path: Does not directly filter or process the audio signal
• System focus: EM / RF environmental conditioning
• Relative control: Up to 3× the electromagnetic control of standard AHD, manufacturer-stated
• Scalability: Additional units can be deployed to expand cabin coverage

• Multi-stage architecture provides Harmonic Harmony’s highest level of AHD electromagnetic conditioning
• Operates outside the audio signal path, leaving existing DSP tuning and system voicing untouched
• Scalable 1–4 unit installation allows coverage to be matched to the vehicle and system
• Integrated antenna is housed within a compact carbon-fibre enclosure for discreet under-dash installation
• Designed to address the EMI and RFI environment created by modern vehicle electronics and wireless systems

• Reference-grade and competition car audio systems
• Highly resolved systems where imaging and spatial consistency are major priorities
• Vehicles with dense electronic, wireless and digital architectures
• Systems that are already carefully tuned but are being developed beyond conventional DSP and acoustic optimisation
• Installations where a discreet, non-signal-path conditioning solution is preferred

The AHD Reference approaches system refinement without inserting another device into the audio signal path. It is designed to work on the electromagnetic environment surrounding the system, allowing an already tuned setup to retain its tonal character while addressing another potential source of instability.