{"product_id":"dan-dagostino-relentless-to-relentless-z-preamplifier-upgrade","title":"Dan D'Agostino Relentless to Relentless Z Preamplifier Upgrade","description":"\u003cp id=\"p-rc_93bd815ec88f6950-27\"\u003e\u003cspan class=\"citation-52\"\u003eThe \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-52\"\u003eRelentless Preamplifier to Relentless Z Preamplifier Upgrade\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-52\"\u003e elevates original Dan D'Agostino Relentless Preamplifiers to full \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-52\"\u003eRelentless Z\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-52 citation-end-52\"\u003e flagship performance specifications.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-51\"\u003eAvailable through \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-51\"\u003eTrimira Audio\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-51 citation-end-51\"\u003e, Brisbane’s premier destination for ultra-high-end audio, this factory-authorized upgrade reimagines the preamplifier's output stage to unlock an extraordinary level of current delivery, signal integrity, and control.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp id=\"p-rc_93bd815ec88f6950-28\"\u003e\u003cspan class=\"citation-50\"\u003eBy introducing D'Agostino's breakthrough \u003c\/span\u003e\u003cb\u003e\u003cspan class=\"citation-50\"\u003eZ-Series FET output topology\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-50 citation-end-50\"\u003e, this upgrade optimizes the preamplifier to drive the lower-impedance input stages of the Relentless Epic 1600 Z and Relentless 800 Z monoblock amplifiers with immense authority—ensuring absolute system-wide electrical coupling.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Technological Innovations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp id=\"p-rc_93bd815ec88f6950-29\"\u003e\u003cb\u003eReimagined Current-Capable Z FET Output Stage:\u003c\/b\u003e \u003cspan class=\"citation-49 citation-end-49\"\u003eRe-architects the output section with a high-current Field-Effect Transistor (FET) design.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003cspan class=\"citation-48 citation-end-48\"\u003eThis allows significantly higher current delivery and enhanced load stability under demanding dynamic peaks.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp id=\"p-rc_93bd815ec88f6950-30\"\u003e\u003cb\u003eOptimized Amplifier Synergy:\u003c\/b\u003e \u003cspan class=\"citation-47 citation-end-47\"\u003eSpecially engineered to drive the re-architected input stages of Relentless Epic 1600 Z and Relentless 800 Z power amplifiers, creating a direct, high-current bridge between front-end and power stages.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp id=\"p-rc_93bd815ec88f6950-31\"\u003e\u003cb\u003eZero Loading Loss \u0026amp; High Linear Coupling:\u003c\/b\u003e \u003cspan class=\"citation-46 citation-end-46\"\u003eCapitalizes on the inherently high input impedance and low-noise voltage-controlled characteristics of FETs, preserving microscopic detail, organic vocal warmth, and harmonic depth without source degradation.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDramatically Lower Distortion:\u003c\/b\u003e Reduces total harmonic distortion across the spectrum, producing a blacker background, faster transient speed, and effortless micro-dynamic contrast.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp id=\"p-rc_93bd815ec88f6950-32\"\u003e\u003cb\u003eEnhanced Low-Frequency Control:\u003c\/b\u003e \u003cspan class=\"citation-45 citation-end-45\"\u003eHigh-current driving capability provides unmatched texture, pitch definition, and authority in low-frequency reproduction, even at low listening levels.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFactory-Authorized Retrofit:\u003c\/b\u003e Upgrades original three-chassis Relentless Preamplifiers without altering the iconic chassis aesthetics or gold-plated inter-chassis physical architecture.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications \u0026amp; Upgrade Comparison\u003c\/h3\u003e\n\u003ctable style=\"width: 99.9801%; height: 313.555px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 39.1944px;\"\u003e\n\u003ctd style=\"width: 22.0355%; height: 39.1944px;\"\u003e\u003cstrong\u003eFeature \/ Metric\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.3003%; height: 39.1944px;\"\u003e\u003cstrong\u003eRelentless Preamplifier \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 43.0045%; height: 39.1944px;\"\u003e\u003cstrong\u003eRelentless Z Preamplifier \u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 39.1944px;\"\u003e\n\u003ctd style=\"width: 22.0355%; height: 39.1944px;\"\u003e\u003cspan\u003e\u003cb\u003eOutput Stage Topology\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.3003%; height: 39.1944px;\"\u003e\u003cspan\u003eStandard Complementary Discrete FET\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 43.0045%; height: 39.1944px;\"\u003eHigh-Current Z FET Output Topology\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1944px;\"\u003e\n\u003ctd style=\"width: 22.0355%; height: 39.1944px;\"\u003e\u003cspan\u003e\u003cb\u003eCurrent Output Capability\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.3003%; height: 39.1944px;\"\u003e\u003cspan\u003eStandard High-Voltage Output\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 43.0045%; height: 39.1944px;\"\u003eSubstantially Increased Current Output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 58.7917px;\"\u003e\n\u003ctd style=\"width: 22.0355%; height: 58.7917px;\"\u003e\u003cspan\u003e\u003cb\u003eAmplifier Synergy\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.3003%; height: 58.7917px;\"\u003e\u003cspan\u003eHigh-Impedance Coupling\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 43.0045%; height: 58.7917px;\"\u003eLow-Impedance High-Current Coupling (Optimized for Z Amplifiers)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1944px;\"\u003e\n\u003ctd style=\"width: 22.0355%; height: 39.1944px;\"\u003e\u003cspan\u003e\u003cb\u003eFrequency Response\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.3003%; height: 39.1944px;\"\u003e\u003cspan\u003e0.1 Hz – 120 kHz (±0.0 dB)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 43.0045%; height: 39.1944px;\"\u003e0.1 Hz – 120 kHz (±0.0 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1944px;\"\u003e\n\u003ctd style=\"width: 22.0355%; height: 39.1944px;\"\u003e\u003cspan\u003e\u003cb\u003eSignal-to-Noise Ratio\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.3003%; height: 39.1944px;\"\u003e\u003cspan\u003e\u0026gt;105 dB (unweighted)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 43.0045%; height: 39.1944px;\"\u003e\u0026gt;105 dB (unweighted) \/ \u0026gt;110 dB (A-weighted)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5972px;\"\u003e\n\u003ctd style=\"width: 22.0355%; height: 19.5972px;\"\u003e\u003cspan\u003e\u003cb\u003eDistortion (THD)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.3003%; height: 19.5972px;\"\u003e\u003cspan\u003e\u0026lt;0.006% (20 Hz to 20 kHz)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 43.0045%; height: 19.5972px;\"\u003e\u0026lt;0.00066% @ full output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1944px;\"\u003e\n\u003ctd style=\"width: 22.0355%; height: 39.1944px;\"\u003e\u003cspan\u003e\u003cb\u003eArchitecture\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.3003%; height: 39.1944px;\"\u003e\u003cspan\u003e3-Chassis Modular (Left, Right, Power Supply)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 43.0045%; height: 39.1944px;\"\u003e3-Chassis Modular (Upgraded Internal Board Assembly)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\n\u003cbr\u003eArrange Your Relentless Z Upgrade at Trimira Audio\u003c\/h3\u003e\n\u003cp\u003eConnect with the high-fidelity specialists at \u003cb\u003eTrimira Audio\u003c\/b\u003e to confirm eligibility for your Relentless Preamplifier, request detailed upgrade pricing, or coordinate factory service logistics.\u003c\/p\u003e","brand":"Dan D'Agostino","offers":[{"title":"Default Title","offer_id":44712430698562,"sku":null,"price":29995.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0029\/9686\/3046\/files\/images_1_78f514b1-fbf1-4cc8-86dc-f5db45fed490.png?v=1786417173","url":"https:\/\/trimira.com.au\/products\/dan-dagostino-relentless-to-relentless-z-preamplifier-upgrade","provider":"Trimira","version":"1.0","type":"link"}