SPL Phonitor x Headphone Amplifier

  • The Phonitor x is the ultimate headphone amplifier. Thanks to VOLTAiR technology it powers headphones operated both balanced and unbalanced playfully with up to 3.7 W.

    The revolutionary Phonitor Matrix delivers the most realistic playback on headphones. As almost all music was mixed for speaker playback the Phonitor Matrix lets you experience music on headphones as being played back through speakers.

    The Phonitor x is not just a headphone amplifier, but also an excellent preamplifier that can also drive power amplifiers or active monitors.


    • Dual Power Amp for Balanced Headphones: Now your headphones can be operated ‘balanced’. Phonitor x has an advanced dual power amp built-in that drives headphones balanced which twice the power of the standard 1/4" jack. This tightens the bass response and makes the overall playback even more relaxed and transparent. The front houses a 4-pin XLR connector to connect the balanced headphone. Both the standard and the 4-pin headphone outputs can be used simultaneously.
    • Optimized Phonitor-Matrix: The Phonitor matrix has become simpler, because the Phonitor x is purely designed for audio playback. Features like Center Level adjustment, Solo and Polarity are of use in music production and have therefore been left off in the Phonitor x. We have also reduced the amount of selectable Speaker Angles from six to four leaving off the 15° and 75° angles.
    • CrossfeedThe Crossfeed switch allows you to adjust the frequency-dependent crossfeed simulation of both channels by adjustments of inter-aural level difference – as if this characteristic would be heard from monitors when in their own room ambiance. One can compare variations in crossfeed values as approximating the influence of different room sizes and characteristics on a given loudspeaker setup. This adjustment can be made in six steps ranging from “minimum” to “maximum”. Crossfeed interacts with the Angle value to simulate the width of a stereo image.
    • AngleThe Angle switch provides for frequency-dependent simulation of your stereo image width by adjustments of inter-aural time difference. This influences the moment in time at which a signal’s wave form arrives at the ear and corresponds to a particular variation in the angle of an actual loudspeaker pair. The time constants of the inter-aural time differences between the left and right channels occur within a range of 90 to 635 microseconds. As a starting value select the 30° position.
    • Pre-Amplifier: Phonitor x is not just a headphone amplifier but also a full-fledged stereo pre-amplifier. There is provision for connecting up to five stereo sources – two in the analog domain offering XLR connectors for a balanced source and RCA connectors for an unbalanced source. With the optional DA converter installed three more digital stereo sources can be connected via USB, coaxial and optical connectors. 
      • You can connect your active loudspeakers or power amplifier directly to the Phonitor x. The rear Speaker Outputs provide both balanced (XLR) and unbalanced (RCA) connections.
    • Remote Control: To control the Volume you can use any IR remote control. The cool part is that the Phonitor x learns your remote! Take your remote control for the CD player for instance. There are many buttons and there are at least two you don’t really need. Assign Volume Up and Volume Down to those buttons and let the Phonitor x learn them. Please check the manual for more.
    • AMP CTL: When Phonitor x operates as a pre-amplifier together with the Performer as power amplifier both units can be wire-linked for simultaneous power on/off. Therefore both units AMP CTL sockets need to be connected with a 3.5mm mono-jack cable. 
      • When switching to headphone listening the Performer can automatically be powered down. To engage this feature set DIP switch #6 on the bottom of the Phonitor x to ON.
    • Optional DAC: Phonitor x can be equipped with the DAC192 DA-converter. With that installed the available inputs are expanded by USB, coaxial and optical digital stereo inputs. The DA converter supports sample rates up to 192 kHz with 24 bit. It syncs automatically to the sample rate of the selected digital input.
  • XLR Input

    • Neutrik XLR, balanced, Pin 2 = (+)
    • Impedance: ca. 20 kohms
    • CMR: -82 dBu (at 1 kHz)
    • Max. Input Level: +32.5 dBu

    RCA Input

    • RCA, unbalanced (single-ended)
    • Impedance: ca. 10 kohms
    • Max. Input Level: +32.5 dBu

    Digital Inputs (optional)

    • Coaxial SPDIF (RCA)
    • Optisch TOSLINK (F06)
    • USB (B)
    • Sample Rates (kHz): 44.1, 48 , 88.2, 96, 176.4, 192

    Balanced Headphone Output

    • Neutrik 4-pin XLR connector
    • Pin wiring: 1= L (+), 2= L (-), 3= R (+), 4= R (-)
    • Impedance: 0.36 ohms
    • Damping Factor: 180 @ 40 ohms
    • Frequency Range: 10 Hz to 300 kHz ( -3 dB)
    • Crosstalk at 1kHz: -90 dB
    • THD & N: 0.00091 % (at 0 dBu, 1kHz, 100 kohms load)
    • Noise (A-weighted): -98 dBu
    • Dynamic Range: 130.5 dB

    Unbalanced Headphone Output

    • 6.35 mm TRS connector
    • Pin wiring: Tip = Left, Ring = Right, Sleeve = GND
    • Impedance: 0.18 ohm
    • Attenuation Factor: 180 @ 40 ohms
    • Frequency Range: 10 Hz to 300 kHz ( -3 dB)
    • Crosstalk at 1kHz: -90 dB
    • THD & N: 0.00091% (at 0 dBu, 1 kHz, 100 kohms load)
    • Noise (A-weighted): -103 dB
    • Dynamic Range: 135.5 dB

    Max. Output Power (at +30 dBu @ 1 kHz)

    • 2 x 1 W at 600 Ohm impedance
    • 2 x 2 W at 300 Ohm impedance
    • 2x 3.7 W at 120 Ohm impedance
    • 2x 2.9 W at 47 Ohm impedance
    • 2x 2.7 W at 32 Ohm impedance

    Speaker/Line Outputs

    • Neutrik XLR, balanced, Pin 2 = (+)
    • RCA, unbalanced (single-ended)
    • Frequency Range: 4 Hz to 300 kHz (-3 dB)
    • Crosstalk at 1 kHz: -106 dB
    • THD & N: 0.00085 % (at 0 dBu, 1 kHz, 100 kohms load)
    • Noise (A-weighted): -103.8 dB
    • Dynamic Range: 136.3 dB

    Internal Operating Voltages

    • Analog: +/- 60 V
    • Digital: + 5 V and + 3,3 V (optional)

    Power Supply

    • Mains voltage (switchable): 230 V AC / 50 Hz or 115 V AC / 60 Hz
    • Fuses: 230 V: T 500 mA; 115 V: T 1 A
    • Power consumption: max 40 VA
    • Stand-by power consumption: 0.7 W

    Dimensions (incl. feet)

    • 278 mm W x 100 mm H x 335mm D
    • 10.95 in W x 3.94 in H x 11.19 in D


    • 4.3 kg; 9.5 lbs (unit only)
    • 5.4 kg; 11.9 lbs (shipping)

We look forward to assisting you

Please Call Us At 888-419-3113

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