Compact Reference Point-Source Holography | Available at Trimira Audio
The Gryphon Pantheon Reference Loudspeaker System brings Gryphon's emphasis on phase coherence, mechanical control, and point-source imaging into a more compact single-chassis architecture.
Designed for medium-to-large listening environments, the three-way Pantheon combines a central Gryphon-Mundorf Air Motion Transformer (AMT) with dual 5.5-inch midrange drivers and dual 8-inch long-throw woofers.
Its curved, time-aligned baffle and Duelund Constant Phase crossover are designed to provide coherent integration between the five drive units, while a 28 V battery-biased crossover section provides dedicated biasing for the impedance-correction circuitry.
At Trimira Audio, we recommend the Pantheon for listeners seeking a substantial full-range loudspeaker with high-resolution imaging, sophisticated crossover engineering, and strong low-frequency capability without moving to Gryphon's much larger Trident II or Kodo architectures.
Key Features & Technological Innovations
Duelund Constant Phase Crossover
The Pantheon uses a Duelund Constant Phase crossover architecture designed to maintain consistent phase relationships between the individual drive units.
The crossover is intended to support coherent acoustic integration and stable spatial imaging through the transition regions.
28 V Battery-Biased Crossover Network
An onboard 28 V battery-bias supply is used for the crossover's impedance-correction circuitry.
The battery-bias architecture provides a stable DC reference for the relevant crossover capacitors and is designed to minimise unwanted effects within the signal path.
Gryphon-Mundorf AMT
The high-frequency section uses a Gryphon-Mundorf Air Motion Transformer.
Its pleated diaphragm provides a large effective radiating area and is designed for rapid transient response with broad, controlled dispersion.
Dual 5.5-Inch Layered-Fibreglass Midrange
Two custom 5.5-inch layered-fibreglass midrange drivers are positioned symmetrically around the AMT.
The D'Appolito-style arrangement is designed to provide controlled vertical dispersion and consistent integration between the midrange and tweeter.
Concave Time-Aligned Baffle
The Pantheon's concave front baffle places the five drive units at carefully controlled acoustic distances relative to the listening position.
This geometry is designed to support the loudspeaker's point-source presentation and coherent wavefront integration.
Independent Driver Baffles
Each driver is mounted using an individually controlled baffle structure.
The architecture is intended to minimise mechanical interaction, cabinet vibration, and unwanted diffraction around the individual transducers.
Dual 8-Inch Long-Throw Woofers
Two custom 8-inch long-throw woofers provide the low-frequency section.
The drivers operate in dedicated reflex-loaded chambers with rear ports, providing extended bass response while maintaining the compact proportions of the overall system.
Technical Specifications
| Specification |
Gryphon Pantheon |
| System Architecture |
3-Way Passive Floorstanding System |
| Midrange Enclosure |
Sealed |
| Bass Enclosure |
Reflex, Dual Rear Ports |
| High-Frequency Driver |
1 × Gryphon-Mundorf AMT |
| Midrange Drivers |
2 × 5.5-inch Custom Layered-Fibreglass Drivers |
| Bass Drivers |
2 × 8-inch Custom Long-Throw Drivers |
| Frequency Response |
25 Hz–27 kHz, Room Dependent |
| Sensitivity |
90 dB @ 2.83 V / 1 m |
| Nominal Impedance |
4 Ω |
| Crossover Frequencies |
250 Hz / 2,500 Hz |
| Crossover |
Duelund Constant Phase Architecture |
| Crossover Bias |
28 V Battery Bias for Impedance Correction |
| Dimensions (W × H × D) |
390 × 1480 × 690 mm |
| Net Weight |
122 kg per loudspeaker |
Reference Point-Source Architecture
The Pantheon uses a vertically symmetrical arrangement:
AMT Tweeter
Dual 5.5-Inch Midrange
Dual 8-Inch Bass
The curved baffle and Constant Phase crossover work together to maintain controlled relationships between the five drivers.
The result is a loudspeaker architecture designed around coherent spatial presentation rather than simply maximising individual driver output.
Amplifier Matching
With 90 dB sensitivity and a 4-ohm nominal impedance, the Pantheon is suitable for a wide range of high-performance amplification, while a capable amplifier remains important for achieving the loudspeaker's full dynamic potential.
Trimira Audio can assist with:
- Power-amplifier selection
- Current capability
- Impedance matching
- Preamplifier compatibility
- Balanced system configuration
- Listening-level requirements
- Room-size considerations
Room & Placement Optimisation
The Pantheon's substantial cabinet and rear-port configuration make careful placement important.
Trimira Audio can assist with:
- Rear-wall spacing
- Toe-in
- Listening distance
- Stereo symmetry
- Bass integration
- Listening-height alignment
- Acoustic treatment
The objective is to establish the appropriate balance between low-frequency extension, spatial focus, and room interaction.
Reference Two-Channel System Integration
A typical Pantheon system can be configured as:
Digital / Analogue Source → Reference Preamplifier → Power Amplifier → Gryphon Pantheon
For a complete Gryphon system, the Pantheon can be paired with suitable Gryphon preamplification and power amplification to create a coherent reference two-channel platform.
Installation Considerations
At approximately 122 kg per loudspeaker and nearly 1.5 metres tall, the Pantheon requires a stable equipment environment and careful positioning.
Trimira Audio can assist with:
- Delivery planning
- Speaker positioning
- Floor protection
- Amplifier matching
- Cable routing
- Final alignment
- Acoustic calibration
Consult with the High-End Audio Specialists at Trimira Audio
The Gryphon Pantheon combines a Gryphon-Mundorf AMT, dual 5.5-inch layered-fibreglass midrange drivers, dual 8-inch long-throw woofers, Duelund Constant Phase crossover, 28 V battery bias, and curved time-aligned baffle geometry in a substantial three-way reference loudspeaker.
Trimira Audio can assist with complete Pantheon system design, including amplifier matching, room planning, speaker placement, crossover configuration, and final acoustic optimisation.
Contact the Trimira Audio high-fidelity specialists in Brisbane to discuss Pantheon system matching or arrange a private listening demonstration.
