Product Overview

The Ultimate Control Center for Headphone Enthusiasts and Audiophiles

The SPL Phonitor x is a dual-purpose powerhouse designed to satisfy the needs of critical headphone listeners and high-fidelity speaker owners alike. Acting simultaneously as an ultra-premium headphone amplifier and a full-scale stereo preamplifier, it unifies balanced and unbalanced analog gear alongside an optional high-resolution DAC768xs module.

Instead of relying on typical low-voltage integrated IC op-amps that bottle up transient information, the Phonitor x routes all audio through specialized high-voltage internal paths. This allows music to retain its complete natural authority, transient speed, and micro-dynamic definition. With its capability to toggle smoothly between driving headphones or external active monitors and power amplifiers, it rules over your high-end listening setup as the definitive command center.

Product Description

120V VOLTAiR Audio Rail Platform:

At the mechanical heart of the Phonitor x lies SPL’s revolutionary VOLTAiR technology. Operating on a massive plus/minus 60V DC internal power rail matrix—four times the electrical voltage found in ordinary consumer or standard studio head-amps—the Phonitor x establishes an unbeatable structural ceiling. Audio signals pass through completely uncompressed, allowing the amplifier to maintain an exceptionally quiet noise floor (-103 dBu) and an immaculate total harmonic distortion rating of just 0.00085%. Music sounds remarkably lifelike, transparent, and spatial, capturing the exact acoustic environment where it was originally tracked.

The Phonitor Matrix – Loudspeaker Simulation Over Headphones:

Traditional headphone listening forces a complete left-and-right channel isolation that sounds artificial compared to sitting in front of stereo monitors. The Phonitor x solves this with its analog-domain Phonitor Matrix, featuring adjustable controls to correct the soundstage:

• Crossfeed: Simulates the interaural time and level differences between channels, replicating how much of the opposite speaker's signal reaches each ear.

• Angle: Adjusts the simulated placement of the stereo image, allowing you to choose between 15, 22, 30, or 45-degree speaker deployment geometries.

  By turning on this pure-analog circuit, the headphone "super-stereo" effect is corrected into a true loudspeaker soundstage, preventing brain fatigue and enabling translation-perfect mixing decisions or relaxed listening hours.

Massive Output Power & Custom Preamplifier Options:

The Phonitor x is an absolute powerhouse. Through its front-panel connections, it unleashes up to 2 x 5 Watts into 250 Ohms on the standard 1/4" TRS jack, and 2 x 3.5 Watts via its 4-pin balanced XLR array. This ensures that even the lowest-efficiency planar magnetic or high-impedance dynamic headphones are driven with effortless authority and absolute authority over the driver diaphragm.

• Smart IR Remote Learning: The large 45mm aluminum volume control knob turns a motorized ALPS RK27 "Big Blue" analog potentiometer that can be paired with any standard infrared (IR) remote to control adjustments from across the room.

• Dual VU Level Monitoring: Two beautiful, classic amber-illuminated mechanical VU meters bounce cleanly to the music, providing precise tracking of incoming audio levels.

Key Features

• 120V VOLTAiR OPERATING PLATFORM: Custom high-voltage DC audio rails unlock unprecedented headroom, dynamic range, and a completely black background.

• DUAL HEADPHONE/PREAMP HUB: Functions smoothly as a standalone high-power headphone amp or a flagship-level analog stereo preamplifier.

• ANALOG PHONITOR MATRIX: Recreates a natural, loudspeaker-style stereo soundstage over headphones via adjustable Crossfeed and Angle selectors.

• MASSIVE DRIVING POWER CAPACITY: Pushes up to 2 x 5W into high-impedance monitoring headphones, easily taming demanding loads.

• BALANCED 4-PIN XLR OUTPUT: Equipped with a dedicated 4-pin balanced headphone port alongside a standard 1/4" TRS output jack.

• MOTORIZED ALPS POTENTIOMETER: Weighted volume knob driven by an automated ALPS fader featuring a bright red tracking indicator LED.

• IR REMOTE CODE PAIRING: Easily programs to receive volume control cues from your favorite existing television or CD remote control.

• RETRO AMBER VU METERS: Dual illuminated vintage mechanical meters monitor incoming line or headphone output levels gracefully.

• SHIELDED LINEAR POWER MATRIX: Built around an internal linear power block with a shielded toroidal transformer to completely isolate magnetic hum.

• DAC768xs HIGH-RES UPGRADE PATH: Supports an optional internal 32-bit digital-to-analog converter block for direct USB, Coaxial, and Toslink feeds.

Technical Specifications

What’s Included in the Box

• 1 x SPL AUDIO Phonitor x Headphone Amplifier and Preamplifier Main Unit

• 1 x Standard AC Grounded IEC Power Cable

• 1 x Set of Premium Vibration-Isolating Chassis Feet

• 1 x Official SPL Fidelity Series Operation, IR Remote Programming, and Matrix Guide Manual