Grado Lineage – Aeon 4
$4,995.00
PLEASE NOTE: This is a special order item and may not be cancelled or returned
Aeon4 sits within the Grado Lineage Series as a direct expression of the design principles that define the line. Developed through decades of cartridge refinement, it delivers a highly resolved and controlled presentation while maintaining the musical balance that defines Grado cartridges.
Built around Grado’s patented moving iron flux-bridger system, Aeon4 brings together speed, stability, and tonal density in a design intended for systems that demand both precision and musicality.
Offered in both stereo and mono configurations, Aeon4 continues the evolution of Grado’s wood body cartridges.
Performance
Aeon4 is a low output moving iron cartridge designed for use with high-gain phono stages.
Its presentation is defined by clarity, control, and balance. Detail is presented with precision while maintaining a smooth and composed top end. The midrange carries natural weight and presence, and low frequencies are delivered with definition and authority.
Complex passages are resolved cleanly, with strong separation and stable imaging. The overall presentation remains composed and coherent, allowing the structure and character of the recording to come through.
Flux-Bridger Moving Iron Design
All Grado cartridges utilize a moving iron design built on Joseph Grado’s patented flux-bridger principle.
This approach allows the cartridge to generate a precise signal with extremely low moving mass, while keeping the coil structure fixed. The result is a presentation that combines speed, control, and harmonic integrity without the fragility often associated with traditional moving coil systems.
The design also ensures long-term consistency, maintaining performance over time without degradation of the internal signal path.
Flux-Bridger Moving Iron Design
All Grado cartridges utilize a moving iron design built on Joseph Grado’s patented flux-bridger principle.
This approach allows the cartridge to generate a precise signal with extremely low moving mass, while keeping the coil structure fixed. The result is a presentation that combines speed, control, and harmonic integrity without the fragility often associated with traditional moving coil systems.
The design also ensures long-term consistency, maintaining performance over time without degradation of the internal signal path.
Coil & Internal Structure
The internal signal path is built using ultra-high purity 7N OCC copper, selected for its conductivity and consistency.
Each cartridge undergoes cryogenic treatment during both component preparation and final assembly, helping to stabilize materials and optimize performance.
The internal structure is carefully damped to reduce unwanted resonance and vibration, allowing the cartridge to extract information from the groove with minimal interference. The result is a signal that remains coherent, balanced, and dynamically responsive.
Coil & Internal Structure
The internal signal path is built using ultra-high purity 7N OCC copper, selected for its conductivity and consistency.
Each cartridge undergoes cryogenic treatment during both component preparation and final assembly, helping to stabilize materials and optimize performance.
The internal structure is carefully damped to reduce unwanted resonance and vibration, allowing the cartridge to extract information from the groove with minimal interference. The result is a signal that remains coherent, balanced, and dynamically responsive.
- Body – Brazilian Ebony Wood
- Cantilever – Sapphire/Shibata Diamond
- Output – 1.0mV @ 5 CMV (45 degrees)
- Controlled Frequency Response – 5 Hz – 70 KHz
- Channel Separation – Avg. 30db, 10-30K Hz
- Input Load – 10-47k ohms
- Inductance – 8mH
- Resistance – 74 ohms
- Cartridge Weight – 10.5 grams
- Tracking Force – 1.6-1.9 grams
- Compliance – 20 μm/mN
