The Dan D'Agostino Relentless 800 Monoblock Amplifier brings the legendary architecture and extraordinary performance of the flagship Relentless series into a more versatile footprint. Available through Trimira Audio, Brisbane’s destination for world-class high-end audio, the Relentless 800 incorporates the same advanced circuit concepts, power supply design, and precision machining as its larger sibling.
Delivering a staggering 800 Watts into 8 Ohms and doubling linear output to 1,600 Watts into 4 Ohms and 3,200 Watts into 2 Ohms, the Relentless 800 drives even the most demanding loudspeakers with complete control, effortless macro-dynamics, and silky micro-detail.
Key Features & Engineering Highlights
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Massive Linear Power Supply: Built around a 4 kVA linear transformer enclosed in a potted metal shield, paired with a custom 400,000 µF capacitor bank to deliver immediate, effortless current under maximum dynamic demands.
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True Balanced Current Mirror Circuitry: Features an all-balanced topology operating strictly in the current domain. Eliminates phase and rail asymmetries to deliver exceptional signal purity and vanishingly low distortion.
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Zero Global Negative Feedback: Maintains flawless open-loop linearity without global negative feedback, ensuring musical signals retain natural warmth, harmonic depth, and fast transient response.
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Super Rail Technology: Utilizes higher voltage supply rails in the driver stage prior to the output section, effectively "turbocharging" the amplifier and ensuring maximum signal swing without clipping.
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84 Precision Output Devices: Incorporates 84 ultra-fast, high-power output transistors matched to exact gain tolerances and secured with custom stainless steel hardware for direct thermal dissipation.
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Copper & Aluminum Heat Sink System: Signature elliptical heatsinks pair solid copper with milled aluminum to safely dissipate immense thermal energy during sustained Class A/AB operation.
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Iconic Machined Chassis & Power Meter: Precision-milled solid aluminum chassis provides total resonance damping and electromagnetic shielding, anchored by Dan D'Agostino's signature copper-trimmed front panel and auto-ranging analog meter.
Technical Specifications
| Feature / Metric |
Specification |
| Output Power |
800 W @ 8Ω / 1,600 W @ 4Ω / 3,200 W @ 2Ω |
| Frequency Response |
20 Hz – 20 kHz (±0.1 dB) / <0.1 Hz – 100 kHz (+0/-3 dB) |
| Distortion (THD) |
0.05% @ 1 kHz @ 800 W into 8Ω |
| Signal-to-Noise Ratio |
>113 dB (unweighted) / >75 dB (A-weighted) |
| Peak Output Voltage |
226 V peak-to-peak / 80 V RMS |
| Peak Output Current |
200 A peak |
| Input Impedance |
100 kΩ |
| Inputs / Outputs |
1 Balanced XLR Input / 1 Pair Heavy-Duty Gold-Plated Binding Posts |
| Dimensions (W x H x D) |
22.5 x 11.5 x 26.0 in / 57.2 x 28.0 x 66.0 cm |
| Weight |
320 lbs / 145 kg per unit |
| Finishes Available |
Anodized Silver or Stealth Black |
Experience Relentless Performance at Trimira Audio
Contact the high-fidelity specialists at Trimira Audio to discuss system synergy, request technical specifications, or arrange a private audition of the Dan D'Agostino Relentless 800 Monoblock Amplifier.
