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Phonitor 2

120V Rail Headphone Monitoring Amplifier


When we brought out the first Phonitor back in 2008, the professional audio world seemed to have been eagerly awaiting it. The success of this unique headphone preamp was overwhelming. It combined a monitoring controller with a headphone amplifier that had provisions that made it possible to reliably mix on headphones. Ever since we call this new species a „Headphone Monitoring Amp,“ which inspired the product name itself: Phonitor.

Interestingly enough, the Phonitor not only became best friends with thousand of professional users, it also won a lot of fans in the Hi-Fi community.

But that was by no means a coincidence — ultimately, the Phonitor can be counted among the best headphone preamps in the world thanks to our unique 120V Rail technology. With its exceptional technical specifications and a huge power margin, it can reproduce any musical material without the slightest modification. Hearing fatigue is drastically reduced. Given all that, it was easy to understand the enthusiasm with which musicians, sound engineers and music lovers received the Phonitor worldwide.

Many Phonitor users told us they wished they could also use the unmatched signal quality that the Phonitor provides to feed their speakers. The Phonitor 2 is a full-fledged stereo preamp that could become the heart of modern professional and home systems alike where headphones have a preeminent importance. Moreover, we have achieved enormous advances with our 120V Rail Technology, making the technical specifications of the Phonitor 2 a new standard in all respects: 141dB dynamic range, 107dB signal-to-noise ratio, -112/-114 dB THD (headphone/speaker output with +30dBu output level). Mind you, the THD measurements define the limits of the measuring equipment but not those of the Phonitor 2.

The Phonitor 2 remains first and foremost a headphone preamp, which is easy to identify given the elaborate loudspeaker simulation for headphones. It works seamlessly with low-impedance headphones with load impedances as low as 10 Ohm (40 Ohm with balanced headphones).

If there is the need for more than one stereo speaker set, we recommended to use our passive switcher called the Expansion Rack.


    Specifiche tecniche:

    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

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

    Max. Output Power

    (at +30 dBu at 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

    Monitor/Line Outputs
    • Neutrik XLR, balanced, Pin 2 = (+)
    • Frequency Range: 4 Hz to 300 kHz (-3 dB)
    • Crosstalk at 1 kHz: -106 dB
    • THD&N: 0.00085 % (at 0 dBu, 1kHz, 100 kohms load)
    • Noise (A-weighted) -103.8 dB
    • Dynamic Range: 136.2 dB

    Internal Operating Voltages
    • +/-60 V

    Power Supply
    • Mains voltage (switchable): 230 V AC / 50 Hz or 115 V AC / 60 Hz
    • Fuses: 230 V: T 630 mA; 115 V: T 1 A
    • Power consumption: max 24 VA

    Dimensions and weight
    • 278 mm W x 100 mm H x 335mm D (incl. feet)
    • 10.95 in W x 3.94 in H x 11.19 in D (incl. feet)
    • 4.3 kg; 9.5 lbs (unit only)
    • 5.4 kg; 11.9 lbs (shipping)