在 Diablo 300 的設計中，Gryphon 團隊有幸充分借鑒了 Gryphon Pandora 前級和 Mephisto 後級升級過程中的概念、元件以及技術突破。
Fortunately, in designing the Diablo 300, the Gryphon crew had the luxury and privilege of being able to draw heavily on concepts, components and technological breakthroughs that emerged during the evolution of the much lauded Gryphon Pandora preamplifier and Mephisto power amplifier.

相較於絕大多數固態音量控制器在電路中引入數十個電阻，Diablo 300 在任何音量設置下最多只使用兩個電阻，使其擁有極爲透徹、完全平衡的音量衰減器電路結構，充分發揮雙平衡輸入的優勢。
The ultra-transparent, fully balanced volume attenuator topology fully exploits the two balanced inputs. Unlike the vast majority of solid state volume controls that typically introduce dozens of resistors in the signal path, the Diablo 300 employs no more than two for any given level setting.

Diablo 300 展現出極寬頻的頻率響應，從 0.5 Hz 延伸至 350 kHz。其驚人的 300 瓦（8 歐姆）輸出功率相較於原 Diablo 有顯著提升。且 Diablo 300 具備極高的電流輸出能力，使其在 4 歐姆負載下可倍增輸出達 600 瓦，並在 2 歐姆負載下提供龐大的 950 瓦。
The extreme wideband frequency response of the Diablo 300 extends from 0.5 Hz to 350 kHz and its prodigious 300 Watt (8 Ohms) power output capability represents a significant increase over the original Diablo. The extreme high current capability of the Diablo 300 allows it to double its output to 600 Watts in a 4 Ohm load and deliver a massive 950 Watts into 2 Ohms.

數據證實，在遇到負載變化大的揚聲器時，Gryphon Diablo 300 依然表現堅如磐石。
As these numbers confirm, the Gryphon Diablo 300 will remain rock solid when confronted with even the most viciously reactive loudspeaker loads.

Diablo 300 擁有 68,000 微法拉的儲存電量，並採用主動並聯穩壓器，相較於原本 Diablo 使用齊納二極管來調節低壓電源，噪音抑制的表現更為顯著。
Diablo 300 maintains a power reservoir capacity of 68,000 microFarad and employs local active shunt regulators for superior noise suppression compared to the Zener diode regulated low-voltage supplies of the original Diablo.

由於 Gryphon Diablo 300 使用無負回授設計，有效避免了將輸出信號迴送至輸入進行比較循環引起的內在時間延遲，以及由偏移所導致的互調失真。
Because it operates without negative feedback, the Gryphon Diablo 300 avoids both the intrinsic time-delay caused by sending the output signal to the input for a comparator loop and the resulting intermodulation distortion between time-offset signals.

更進一步的特點包括過於強大的電源供應、偏壓最佳的 AB 類、最先進的發燒級元件。並安裝在軍事規格的雙層和四層印刷電路板，幾乎沒有點對點的佈線。
Further highlights include massive, overkill power supplies, high Class A/B bias, state of the art audiophile components throughout, mounted on military specification dual- and four-layer printed circuit boards with virtually no point-to-point wiring.

Diablo 300 採用新型低電容的前級驅動電晶體，並在電壓放大階段增加電流，以擴展頻寬和提高瞬態響應。原 Diablo 輸出階段的線圈發射二極體已升級為非感應型。
Diablo 300 utilises new, low-capacitance pre-driver transistors and increased current in the voltage amplification stage for extended bandwidth and increased slew rate. The wire-wound emitter diodes in the original Diablo output stage have been upgraded to non-inductive types.

放大器的電源皆以聚丙烯耦合電容器與高階電解電容器並聯。
The power supplies for various amplification stages employ only polypropylene coupling capacitors in parallel with high-grade electrolytic capacitors.

Diablo 300 因功率提升而產生更多熱量，為了更有效地散熱，配備了比上一代大兩倍面積的散熱片。其鏟齒散熱片巧妙地融入外觀設計，使 Diablo 300 在 Hi-End 音響中脫穎而出，展現出獨特的時尚風格。
To dissipate heat generated by the increased power of the Diablo 300, the unit is fitted with twice as much heatsink area as its predecessor. The highly efficient recessed heatsink array is cleverly integrated into the smooth exterior for a stylish statement that takes the Diablo 300 architecture well beyond the realm of undistinguished laboratory styling common to so many High End audio components.