The Relentless 800 to Relentless 800 Z Upgrade transforms original Dan D'Agostino Relentless 800 Monaural Amplifiers to the flagship Relentless 800 Z performance standard. Facilitated through Trimira Audio, Brisbane’s destination for ultra-high-end audio, this factory-authorized upgrade elevates power output, dynamic linearity, and preamplifier coupling to exceptional new heights.
Developed alongside the Momentum Z and Relentless Z reference series, this upgrade increases power output to an astounding 1,200 Watts into 8 Ohms while introducing an advanced Z JFET-based input stage engineered to draw significantly more current from front-end electronics.
Key Features & Technological Innovations
-
Power Output Boosted to 1,200W @ 8Ω: Increases absolute power delivery from 800 Watts to 1,200 Watts into 8 Ohms (scaling linearly to 2,400W into 4 Ohms and 4,800W into 2 Ohms), providing virtually limitless dynamic headroom and iron-fisted driver control.
-
Z JFET-Based Input Stage: Re-architects the input circuit with an ultra-low-noise JFET topology designed to lower input impedance restrictions, allowing the amplifier to draw higher current directly from preamplifiers—most notably the Relentless Z Preamplifier.
-
Strengthened Electrical Coupling: Enhances component-to-component signal transfer and impedance matching, delivering superior micro-transient speed, improved low-level resolution, and an expanded soundstage.
-
In-Field Service by Factory Technicians: Carried out directly on-site in the owner's listening room by certified Dan D'Agostino Master Audio Systems (DDMAS) technicians, eliminating the logistics and handling risks of shipping massive chassis. (Note: DDMAS technician travel expenses are billed separately).
-
Complete System Optimization & Calibration: Includes on-site bias optimization, thermal checking, and performance verification to ensure the upgraded amplifiers perform precisely to factory specifications.
Technical Specifications & Upgrade Comparison
| Feature / Metric |
Relentless 800 |
Relentless 800 Z |
| Output Power @ 8Ω |
800 W RMS |
1,200 W RMS |
| Output Power @ 4Ω |
1,600 W RMS |
2,400 W RMS |
| Output Power @ 2Ω |
3,200 W RMS |
4,800 W RMS |
| Input Topology |
Standard Complementary JFET |
Advanced Z JFET Input Stage |
| Preamplifier Coupling |
High-Impedance Standard |
Enhanced High-Current Coupling (Optimized for Relentless Z) |
| Signal-to-Noise Ratio |
>113 dB (unweighted) |
>120 dB (unweighted) |
| Frequency Response |
20 Hz – 20 kHz (±0.1 dB) |
0.1 Hz – 250 kHz (-1 dB) |
| Installation Method |
Factory Build / Dealer |
In-Field Installation by DDMAS Technicians |
Arrange Your Relentless 800 Upgrade with Trimira Audio
Contact the high-end audio specialists at Trimira Audio to confirm eligibility for your Relentless 800 monoblocks, receive scheduling timelines, and request a detailed quote including factory technician travel arrangements.
