Apex Supreme
Dual Mono High Fidelity Tube
Preamplifier
The Crowning Achievement of Elysium Labs
The Architecture of Absolute Truth
The Apex Supreme Series High Fidelity Tube Premplifier is not merely a component in an audio chain; it is the physical manifestation of Elysium Labs’ uncompromising dedication to the soul of music. Built without the constraints of a production budget, the Apex Supreme is engineered to serve as the ultimate time machine, capturing the artist’s true intent and delivering it unaltered into your listening sanctuary.
To achieve this level of performance, Kenneth Lin and his team designed the Apex Supreme Series High Fidelity Tube Preamplifier around three core architectural tenets:
A Natural Tonal Balance: The Apex Supreme series utilizes a meticulously neutral circuit design and components selected for their lack of noise & signature coloration. It provides a flawless, pristine blank canvas upon which the natural timbre of the music can paint itself.
Nuanced Dynamic Contrast: Fueled by a revolutionary, ultra-low-noise power supply, the Apex Supreme achieves an extraordinary level of transparency. By dropping the noise floor into complete obscurity, it unveils the most delicate musical subtleties—from the faint texture of a breath to the explosive crescendo of a full orchestral movement. The Geometry of Silence: With an engineering focus on phase linearity on signal and its harmonics, the Apex Supremecreates a stable pitch-black background. This allows listeners to perceive not just the notes, but the physical space and profound silence between individual instruments.
The First Line of Signal Integrity: The Impedance Optimizer
Before a single note reaches the vacuum tubes, it must survive the chaotic threshold where your source component meets the preamplifier. This is the first critical point of failure in high-end audio systems.
In conventional audio design, source components—even multi-thousand-dollar flagship Digital-to-Analog Converters (DACs)—are profoundly vulnerable. If a DAC’s analog output stage or current-to-voltage (I/V) conversion is compromised or asked to drive an unfavorable load, its entire sonic character warps. Its frequency response shifts, its transient energy collapses, and its distortion profile climbs unevenly. Under these conditions, your source component is choked and colored before the preamplifier can even begin its work.
The Apex Supreme eradicates this systemic bottleneck at the absolute origin of the signal path.
To isolate and protect the incoming musical signal, Elysium Labs has engineered a proprietary Impedance Optimizer Circuit to serve as an invisible, ultra-transparent electrical bridge. Operating as a pristine input buffer at absolute Unity Gain, this circuit acts as an unyielding, invisible electrical sanctuary that completely isolates your source from the rest of the preamplifier.
Rather than forcing your DAC to struggle against fluctuating electrical demands, the Impedance Optimizer presents a perfectly constant, ideal impedance match to your source component—regardless of its internal design, output impedance, or circuit architecture. By liberating the source from the physical “loading” of the preamplifier, the Apex Supreme preserves the exact voltage profile the artist intended.
The Law of Cumulative Distortion
“Distortion in a high-fidelity system behaves as a cumulative lump sum. Every single link in the electronic chain adds its own technical wreckage to the signal. If the entry point is compromised, the downstream circuits are merely amplifying a flawed foundation. By securing absolute signal integrity at the point of entry, the Apex Supreme eliminates this compounding wreckage and delivers a flawless, unadulterated musical canvas to the next stage of the journey: the revolutionary Tube Voltage Amplification Stage.” – Kenneth Lin
Empirical Proof: The Geometry of Zero Coloration
High-end audio is often clouded by subjective marketing claims. Elysium Labs rejects empty hyperbole. The performance of the Impedance Optimizer is an empirical certainty, captured by high-sampling-rate audio spectrum analyzers and validated by thousands of hours of critical human listening. It functions like a pane of flawless optical glass—it adds no flavor, introduces no artifacts, and leaves no technical fingerprint on the music.
The Void of Absolute Silence (Fast Fourier Transform Analysis):
When subjected to a punishing 1kHz pure tone at a robust 2.2V RMS output, the circuit displays a level of spectral purity that approaches theoretical perfection. The second-order harmonic (H₂) is suppressed to an astonishing -132.4 dBr, while the third-order harmonic (H₃) is pushed down to -132.8 dBr. This drives harmonic distortion deep into the mathematical void, far below the noise floor of the finest recording equipment on Earth and completely untraceable by the human ear.
Flawless Time-Linearity and Ultrawide Bandwidth:
The circuit exhibits an astronomical frequency response that stretches effortlessly from an earth-shaking 3Hz (-3dB) to an ultra-extended 109,000Hz (-6dBr). Crucially, phase deviation remains at a flawless, unmoving 0° across the entire audible spectrum (20Hz to 20,000Hz). This absolute phase linearity guarantees that all frequencies reach your ears at the exact same microsecond, preserving perfect time-alignment, razor-sharp holographic imaging, and the visceral, instantaneous transient snap of live instrumentation.
Total Immunity to Complexity (32-Tone Intermodulation Test):
Single-tone measurements only tell part of the story; real music is a dense, violent storm of concurrent frequencies. When pushed to its absolute limits by a ruthless 32-tone Intermodulation Distortion (IMD) test, the Impedance Optimizer remains entirely unbothered. The noise floor stays perfectly flat and clear of ghost frequencies, intermodulation sidebands, or technical wreckage. Whether rendering the delicate whisper of a single acoustic guitar or the explosive, multi-layered crescendo of a full orchestral movement, the circuit maintains unyielding composure, separation, and ease.
Over 100 Sonic Identities: The Modular Revolution
High-end audio has historically been rigid—locking listeners into a single sonic signature unless they buy a completely new preamplifier. The Apex Supreme Series High Fidelity Tube Preamplifier shatters this paradigm.
“Every classic vacuum tube possesses a unique, deeply emotional thumbprint—those coveted, pleasant second-order harmonics that breathe life, spatial dimension, and warmth into a recording.”
— Kenneth Lin
The Apex Supreme series tube preamplifier features our revolutionary, hot-swappable Modular Voltage Amplification Stage (VAS). By default, the Apex Supreme pre-amplifier ships with the legendary Giscours Tube VAS Module, utilizing the exquisite 6aw8a tube. However, your journey does not end there. Driven by Kenneth’s 25 years of research cataloging over a thousand vacuum tube circuit designs, Elysium Labs has engineered over 100 distinct tube modules to be released gradually. This futuristic architecture grants you the unprecedented luxury of changing your system’s harmonic profile to match your exact musical mood. It is an excellent sustainable upgrade path, where you have the freedom to experience a new tube’s distinct performance, signature and voice without having to replace their entire system.
The Default Voice: The Giscours 6aw8a Module
While the Apex Supreme offers unlimited sonic exploration through its modular architecture, it ships proudly with the Giscours 6aw8a Tube VAS Module as its definitive, out-of-the-box voice. This specific module was engineered to achieve a highly elusive acoustic profile: a massive, deliberate void between the second (H2) and third (H3) harmonics. Harsh, fatiguing third-order harmonics are the absolute enemies of musicality. Therefore, our proprietary topology ruthlessly suppresses H3 down to a vanishingly low -96.7 dBr, ensuring a pristine, uncolored background.
Conversely, we deliberately preserve the pleasant, organic second-order harmonics (H2) at a healthy -69.9 dBr. This staggering ~27dB ratio gap is the holy grail of tube amplification. Simply put: we eliminated the bad distortion so you can clearly hear the good distortion. By entirely clearing away the technical wreckage that usually clouds a signal, we liberate the tube’s natural, euphonic signature—preserving the expansive, spatial soundstage and vivid imaging that audiophiles crave.
Real Music is Complex, not just a Single laboratory Tone
Furthermore, real music is not a single laboratory test tone; it is a complex, demanding storm of simultaneous frequencies. To ensure this module maintains its pure acoustic signature under absolute real-world stress, it was subjected to a punishing 32-tone Intermodulation Distortion (IMD) test. The results are undeniable: the noise floor remains perfectly flat and entirely free of unwanted ghost frequencies, intermodulation artifacts, or signal degradation. Whether rendering the whisper of a single acoustic guitar or the explosive crescendo of a full orchestra, the Giscours 6aw8a module delivers a masterclass in balancing surgical engineering precision with raw acoustic emotion.
The Power Supply: The Flowing Soul of Musicality
At Elysium Labs, we reject the conventional “brute force” methodology of power design—excessive filtration, aggressive power regulation, or relying blindly on exotic boutique components to fix a flawed circuit. Instead, we believe in the masterful management of power.
Three-Stage Cascade Voltage Buffer
The Apex Supreme’s power supply is fine-tuned using high-sampling-rate, Long FFT Length audio spectrum analysers, perfected by hours of critical human listening. It is engineered to swing effortlessly with the timing of the music while maintaining absolute authority and noise control.
Noise is systematically eradicated through our proprietary Three Extreme Stage Cascaded Buffered Filtering design. Rather than choking the life out of the music, this cascading Voltage Buffer system ensures an incredibly clean DC supply with a spectacular signal-to-noise ratio. This complex arrangement maximize the clarity, dynamic range & contrast resulting the music sounds as lively and detailed as intended, without any background noise or any other artifacts.
With over 25 years of research in tube design, our founder designer Kenneth, concluded that this is one of the most essential key to present a neutral & excellent musical expressive sound, natural tonal balance, transparency, expansive spatial soundstage and vivid imaging.
No-Compromise Dual Mono Power Supply
Independent Dual Mono Infrastructure: Each stereo channel possesses its own entirely isolated, independent linear power supply built directly into the pre-amplifier circuit. This rare, cost-no-object approach eliminates inter-channel crosstalk, painting a stunningly holographic soundstage.
Premium Japanese Power Transformer: Apex Supreme preamplifier features custom-manufactured Japanese ISO Tango as power transformers to ensure the best performance.
Premium Japanese Choke Inductor & Premium Mundorf Capacitor: Apex Supreme series high fidelity tube preamp features custom-manufactured Japanese ISO Tango choke inductor as well as premium Mundorf capacitors for intricate multi-stage filtering to ensure high signal to noise.
The Telefunken Heartbeat: The power supply features the iconic, historical Telefunken Big Mesh Plate RGN1064 rectifier. Selected after exhaustive testing as the most evocative rectifier under 100mA, its unique mesh-plate architecture provides flawless heat dissipation, extreme stability, and an unbeatably low noise floor that lets music sound raw, lively, and unhindered.
Mastering the Micro-Details
Tokyo Ko-On Denpa (TKD) 2R6 Input Selector
To preserve signal purity from the very moment it enters the pre-amplifier, the Apex Supreme employs the undisputed industry standard: the TKD 2R6 selector switch.
Uncompromised Signal Integrity: Renowned for its low contact resistance, it switches between audio sources with zero signal degradation or added noise.
Precise Channel Separation: Maximizes stereo imaging by preventing signal bleeding between inputs.
Tokyo Ko-On Denpa (TKD) 2P65CS Volume Attenuation
The volume control is the gatekeeper of a pre-amplifier’s delicacy. The Apex Supreme utilizes the premium TKD 2P65CS stepped attenuator.
Flawless Low-Volume Balance: Maintains perfect left-to-right channel balance even at whisper-quiet listening levels.
Ultra-Low Self-Noise: Operates with a non-existent noise floor, introducing zero hiss or uncolored alteration to the music path.
Extreme Component Selection
When components are matched to extreme tolerances and implemented properly, they unlock a level of performance standard HiFi companies cannot reach. Elysium Labs pushes high-precision boundaries further than ever before. Every single resistor and capacitor on the main board is purchased in quantities of many thousands, individually pre-measured, and meticulously sorted into groups with an accuracy rating between 0.1% and 0.001%. This exhaustive quality control ensures that each individual monoblock performs at its absolute peak. Every attention to every detail MATTER, That is The Elysium Labs Apex Supreme Series a true High Fidelity Tube Preamplifier.
Ultra-Low 150-Ohm Output Impedance
While vintage tube preamplifiers traditionally suffered from high output impedances that caused system mismatches, the Apex Supreme is engineered to an ultra-low 150 Ohms output impedance.
Universal Compatibility: This allows the Apex Supreme to effortlessly drive virtually any power amplifier on the market without bass roll-off, loss of dynamics, or cable-induced distortion.
The Perfect Pairing: While universally compatible, it serves as the absolute, mathematically ideal partner to our flagship Imperium Supreme amplifier.
© Copyright by Elysium Labs.
Voicing: The Harmony of "Correct" and "Right"
The creation of the Apex Supreme series high fidelity tube preamp transcends measurements and break away from the boundaries of traditional audio engineering. We disagree with many brands that rely on a reiteration of classic circuits adorned with boutique components. Our voicing process balances two distinct philosophies:
1. The Art of “Correct” (Engineering Precision)
The foundational bedrock of the Apex Supreme is pure electrical engineering brilliance. Circuits boast meticulously calibrated optimum bias and load lines, resulting in a perfectly symmetrical voltage swing. This structural precision guarantees a linear frequency response, linear harmonics profile, ultra low 3rd order harmonic distortion and next to non existence intermodulation distortion and any other artifacts ensuring the unit is technically flawless before a single note is listened to.
2. The Alchemy of “Right” (Acoustic Tuning)
In high-end audio, a resistor is never just a resistor—it possesses inherent capacitance and induction. Every capacitor carries its own subtle signature. These traits introduce “sonic colors.” Kenneth Lin treats component selection like an alchemist compounding gold. Carbon composites, carbon film, tantalum, high-precision metal foils, MKP, and premium oil capacitors are chosen not merely for their specs, but for the specific colour they contribute to the sonic palette. This ensures the Apex Supreme doesn’t just sound mathematically “correct”—it sounds emotionally “right that bring a harmonious blend of precision and musicality.
Technical Specifications
| Specification | Value |
| Default Tube Module | Giscours VAS Tube Module (6aw8a) |
| Input Type | 4 pairs of RCA |
| Input Impedance | 100KΩ |
| Signal Input Maximum Level | 8 VAC |
| Output Impedance | 150Ω |
| Signal to Noise Ratio | 120 dB |
| Frequency Response | 2 - 200,000 Hz |
| Dimensions (W x H x D) | 450 x 300 x 180 mm |
| Weight | 20.0 Kg |
| Mains Input Voltage | 120 / 230 / 250 VAC |
| Mains Fuse | 3.15A Slow Blow |
| Power Consumption | 90 W |
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