: Relative phase test helps listeners identify whether speakers are pushing and pulling in unison. The Burn-In Signal
The XLO Burn-In track utilizes a proprietary sweep signal. It forces your system to work across all frequencies simultaneously, rapidly conditioning the dielectric materials in cables and loosening the mechanical suspensions of new speakers. 2. System Diagnostic and Setup
The CD is divided into two clear sections: (tracks 1-9) for calibration and system conditioning, and Music Tracks (tracks 10-18) for evaluation and enjoyment. : Relative phase test helps listeners identify whether
The album is structurally split into two halves: for system setup/conditioning, and Music Tracks for critical listening and acoustic evaluation. Section 1: System Technical Standards & Burn-In
stands as one of the most historically significant tuning tools in high-end audio. Conceived as a collaboration between Roger Skoff of XLO Electric (pioneers in high-performance cables) and "Prof." Keith O. Johnson (audio guru and co-inventor of HDCD), this disc serves a dual purpose. It provides a suite of complex diagnostic tones to optimize audio component hardware alongside meticulously engineered musical tracks to benchmark final performance. Decades after its initial release, audiophiles continue to seek out archival 16-bit/44.1kHz FLAC rips of the original 24K Gold physical pressing to accurately calibrate stereo and home theater configurations. Key Technical Specifications Specification Catalog Number Reference Recordings / XLO RX-1000 Disc Type Special 24K Gold CD (HDCD Encoded) Digital Format FLAC (Free Lossless Audio Codec) Resolution 16-bit / 44.1 kHz (Red Book standard) Total Tracks The Importance of the 24K Gold Pressing Section 1: System Technical Standards & Burn-In stands
Play the diagnostic tracks first. Ensure the "In-Phase" track centers firmly between your speakers, and the "Out-of-Phase" track diffuses completely to the sides of the room. Step 2: System Burn-In Execution
The first notes of a jazz ensemble hit. Suddenly, the velvet curtain is gone. Because of the obsessive engineering by XLO and the gold substrate's superior reflectivity, the jitter is non-existent. You can hear the exact wood-on-metal "click" of a drumstick hitting a rim and the breath of a saxophonist before the note even begins. step-by-step masterclass in evaluating equipment geometry
Tracks 1 through 9 provide a systematic, step-by-step masterclass in evaluating equipment geometry, electrical continuity, and phase behavior: Track Name Diagnostic Purpose Audiophile Application Channel Identification Left / Right verification Confirms interconnect lines are wired correctly. 2 & 3 Voice In-Phase / Out-of-Phase Polarity evaluation
: This is where things get scientific. A steady 315Hz tone is played, designed to be used with an AC voltmeter connected to your amplifier’s outputs. The goal is to measure and ensure both channels are producing identical output levels—a crucial check for absolute channel balance.
To fully appreciate the impact of this disc in its own time, one only needs to look at the advertisements that promoted it. An ad from the October 1996 issue of Hi-Fi World offers a snapshot of the audacious marketing that helped cement its legendary status. A modern translation from the original PDF reveals the effective, almost hyperbolic promise: "The XLO technical tracks will burn-in new stereo and home theater/AV components and demagnetize existing ones, to ensure peak performance and freedom from electronic glare. ... This State-of-the-art audiophile 24kt gold pressing is also HDCD and surround-sound compatible, and is an essential tool for as long as you have your system".
