SPL AUDIO Phonitor 3 headphone amplifier and monitoring controller with 120V technology
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Product Overview
The Flagship Reference Standard for Impeccable Headphone and Monitor Control
The SPL Phonitor 3 marks the absolute pinnacle of analog audio reproduction, serving as a comprehensive command center for high-end mastering facilities, premium recording studios, and uncompromising audiophiles. This pure-analog version provides an uncolored sonic canvas, letting audio professionals make surgical mixing decisions with zero acoustic compression or ear fatigue. Hand-built in Germany, it leverages SPL's legendary high-voltage operating rails to bridge the gap between traditional loudspeaker monitoring and modern headphone tracking.
Product Description
Revolutionary 120V VOLTAiR Technology:
The foundation of the Phonitor 3 is SPL’s exclusive VOLTAiR 120V operational amplifier technology. While standard professional audio components operate on a limited $\pm$15V or $\pm$18V internal grid, VOLTAiR circuits run at a massive $\pm$60V DC. This four-fold increase in operating voltage yields an exceptional structural ceiling. It maximizes the dynamic range to a staggering 141.4 dB, drives the self-noise floor down to near-infinite silence, and completely eliminates thermal distortion. Your audio peaks pass through with absolute transient velocity, preserving pristine micro-details exactly as they were captured.
The Definitive Phonitor Matrix (Fully Variable Crossfeed):
Standard headphone monitoring forces an artificial left/right split that doesn't exist when listening to loudspeakers in a room. The Phonitor 3 rectifies this via its fully variable, analog Phonitor Matrix. Utilizing pure analog circuitry without digital DSP latency, it features continuously variable knobs for Crossfeed (interaural level difference) and Speaker Angle (interaural time difference up to a standard 30° placement). This lets you precisely dial in the exact spatial image of your physical studio monitors, allowing you to accurately judge panning, center-level balancing, and stereo width directly on headphones.
Master-Grade Monitor Controller and Balanced Routing Architecture:
Beyond its world-class headphone amplifier stage, the Phonitor 3 acts as an elite analog monitoring hub. The rear panel features gold-plated balanced XLR stereo inputs alongside balanced XLR stereo outputs, allowing you to feed an external stereo power amplifier or active midfield studio monitors. A front-panel source toggle switches fluidly between your analog line gear. To facilitate deep acoustic analysis, the tactile front panel is loaded with dedicated hardware switches for Mono summing, Phase Inversion (Pol L/R), Left/Right Solo tracking, and a -20 dB Dim attenuation layout.
Precision Level Tracking and Classic VU Aesthetics:
Housed in a robust, low-profile metal chassis with a thick, premium aluminum faceplate, the unit combines modern technology with timeless analog soul. The main output level is governed by a heavy-duty, high-mass aluminum volume knob paired with a premium motorized ALPS RK27 "Big Blue" potentiometer for immaculate channel matching. Front-panel visual feedback is driven by dual mechanical VU meters featuring an integrated calibration switch (-6 dB / -12 dB), allowing you to accurately track input levels even when driving hot, high-voltage mastering signals.
Key Features
120V VOLTAiR Technology: Flagship high-voltage audio operating rails ($\pm$60V DC) yield an incredible 141.4 dB dynamic range with virtually zero internal clip distortion.
Fully Variable Phonitor Matrix: Analog speaker-emulation crossfeed controls allow you to fine-tune speaker placement angles and interaural time delays for perfect speaker-like translation.
Pro-Grade Monitor Controller: Balanced stereo XLR outputs seamlessly connect to active studio monitors or power amplifiers, managed by the master volume cell.
Advanced Hardware Diagnostic Suite: Dedicated front-panel switches allow instant Mono summing, Phase Polarity Inversion, Left/Right channel soloing, and Dim tracking.
Motorized ALPS RK27 Potentiometer: High-spec mechanical volume knob delivers smooth, precise, and perfectly balanced left/right level tracking across the entire volume spectrum.
Dual Backlit Mechanical VU Meters: Classic precision meters provide real-time visual tracking of signal levels with selectable sensitivity pads for high-gain mastering.
Pure Analog Design Path: Completely discrete line processing ensures no digital conversion or conversion stages touch your pure outboard line paths.
Handmade in Germany: Built, calibrated, and rigorously tested under boutique conditions to ensure unmatched lifetime performance.
Technical Specifications
Feature
Specification
Device Type
120V Analog Headphone Amplifier & Monitor Controller
