SPL Phonitor One D
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- This item is covered for 3 years
Essential Information About the SPL Phonitor One D Headphone Amplifier
Essential Information About the SPL Phonitor One D Headphone Amplifier
- Powerful and precise headphone amplifier designed for studio monitoring as well as demanding hi-fi listening.
- Continuously adjustable SPL Crossfeed to achieve a more natural stereo image on headphones and reduce fatigue during long sessions.
- USB digital input with 32-bit DAC, Class Compliant for easy computer integration.
- Carefully crafted audiophile electronics (OPA 2134 SoundPlus, ultra-low noise components) for lively, detailed, and stable sound reproduction.
Manufacturer Information
SPL
https://www.spl.audio
info@spl.audio
------------------------
Safety manager:
SPL electronics GmbH
Email: info@spl.audio
Address:
A Compact Phonitor Focused on Headphone Listening... with a "Studio" Approach
The Phonitor One D embodies SPL's DNA: offering a headphone listening chain capable of serving as a reference, with a credible stereo image and professional-level performance. In a compact format, it combines a high-reserve headphone amplifier with design choices focused on signal path quality to preserve micro-details, dynamics, and transient coherence. The "Phonitor" signature is notably present through the Crossfeed function, designed to bring the headphone experience closer to that of speaker listening.
Who Is It For and What Are Its Uses?
The SPL Phonitor One D is aimed at musicians, sound engineers, content creators, and audiophiles who frequently work with headphones and want reliable listening to judge mix balance, reverb depth, vocal placement, or low-end management. It is also perfectly suited for home studios that switch between multiple sources (interface, player, computer) and want a central listening point. Thanks to its 6.3 mm jack headphone output and available power, it drives both studio-oriented headphones and more demanding models while maintaining good bass control.
Technical specifications
| Number of channels | 1 | Color | Black |
| Rackable | No | ||
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Questions frequently asked
Is the Crossfeed on the Phonitor One D adjustable?
The Crossfeed is continuously adjustable and introduces controlled crosstalk between stereo channels. This feature brings the headphone soundstage closer to that of speakers for better evaluation of panning and width.
What power does the Phonitor One D deliver according to headphone impedance?
The power reaches 2 x 190 mW at 600 ohms, 2 x 330 mW at 250 ohms, and 2 x 400 mW at 47 ohms. The headphone output uses a 6.3 mm stereo jack. The specified frequency response ranges from 10 Hz to 200 kHz at -3 dB.
Does the USB input work without a driver?
The Class Compliant USB input allows use without driver installation. The 32-bit DAC supports PCM streams up to 768 kHz and playback of DSD4 or DSD256.
Which audio inputs are available?
Three switchable stereo inputs are provided: balanced 6.3 mm TRS jack, unbalanced RCA, and USB.
What components are used in the preamplification stage?
The preamplification stage is based on two Burr-Brown OPA 2134 SoundPlus operational amplifiers. Their slew rate is rated at 20 V/µs, while the THD+N distortion reaches 0.002% at 0 dBu into 600 ohms.
