SPL Phonitor x Headphone Amp / Preamp with VOLTAiR Tech
Best high-end headphone amplifier for audiophiles seeking professional-grade speaker-like sound.
Experience unparalleled audio with the SPL Phonitor x, a premium headphone amplifier and preamplifier. Its VOLTAiR technology delivers up to 3.7W of power for both balanced and unbalanced headphones, enhancing bass and transparency. This versatile device also functions as a full-fledged stereo preamplifier, accepting up to five stereo sources via analog and optional digital inputs. Connect active speakers or power amplifiers directly using the flexible rear speaker outputs, ensuring a complete and immersive listening experience.
$1899.99
Owner Satisfaction
4.7
/ 5
Category Rank
32
/ 733
#32 in Headphone Amplifiers
Price vs Category Average
+36%
Above average
Amplifier type
Solid-state
/ Solid-state
Who it's for
- Audiophiles seeking pristine, distortion-free audio reproduction
- Listeners wanting a natural, speaker-like soundstage for headphones
- Power users driving demanding headphones and high-end speaker systems
Who should skip it
- Budget-conscious buyers looking for entry-level audio gear
- Mobile listeners needing a compact or portable setup
- Casual users preferring a simple plug-and-play experience
Performance breakdown
Headphone Driving Power
VOLTAiR technology provides massive headroom for even the most demanding headphones.
Soundstage Realism
The Phonitor Matrix creates a natural, speaker-like listening experience for headphones.
Connectivity Versatility
Five stereo inputs make this a true command center for audio systems.
Preamplifier Performance
Seamlessly integrates into high-end speaker setups as a dedicated stereo preamp.
Build Integrity
Robust construction and classic analog VU meters signal professional-grade studio reliability.
Impedance Compatibility
Effortlessly handles everything from sensitive IEMs to high-impedance reference cans.
Key Specs
Amplifier type
Solid-state
Connectivity
Wired
Inputs
Neutrik XLR, RCA, USB, Optical, Coaxial
Output Power
8 W (600 Ohm), 3.5 W (300 Ohm), 0.7 W (32 Ohm)
Dimensions
11" x 4" x 11.81"
Weight
9.7 lb
Number of Headphone Outputs
2
Max Supported Headphone Impedance
600 Ohms
Features
- High-power headphone amplification up to 3.7W
- VOLTAiR technology for superior performance
- Balanced and unbalanced headphone operation
- Dual power amp for enhanced balanced output
- Simultaneous headphone output use
- Five stereo source inputs
- Optional digital input expansion
- Flexible analog speaker outputs
- Phonitor Matrix for speaker-like headphone listening
- Dual analog VU meters for level monitoring
What customers say
The SPL Phonitor x earns high praise primarily for its exceptional sound quality and superior build. Users consistently note the audio is transparent, detailed, and spacious. A key feature is the Phonitor Matrix, which users value for creating a natural speaker-like experience, significantly reducing listening fatigue. The robust, premium construction reflects its professional grade. Driven by VOLTAiR technology, the unit delivers impressive dynamics and power, easily handling demanding headphones. While positioned in the high end, owners feel the performance justifies the investment, establishing the Phonitor x as a reference grade component that elevates serious headphone listening.
Know before you buy
Yes, the Phonitor x functions as a full-fledged stereo preamplifier. You can connect active speakers or a power amplifier directly to the rear outputs and manage your volume levels through the unit.
The Phonitor Matrix simulates the acoustics of a room by mimicking the way sound interacts with your ears when listening to speakers. It reduces the 'in-your-head' effect of headphones, creating a more natural, spatial soundstage.
Absolutely. The Phonitor x is designed to handle headphones up to 600 Ohms, providing significant power and clarity even for demanding audiophile-grade gear.
Yes, the device features two headphone outputs and supports simultaneous use. This allows you to drive both balanced and unbalanced headphones concurrently if needed.
The Phonitor x supports optional digital input expansion. Depending on the specific configuration you purchase, you may have access to USB, Optical, and Coaxial inputs alongside the standard analog connections.
VOLTAiR is SPL’s proprietary 120V rail technology. It provides significantly higher headroom and dynamic range compared to standard audio circuits, resulting in improved transparency and reduced distortion.
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