SPL Audio - Phonitor XE Headphone Amplifier


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Product Details

Phonitor xe

Headphone Amplifier

(Black, 115V, US Power Cord)

The Phonitor xe is the ultimate standalone device for headphone enthusiasts who want the perfect solution without any compromises.

The Phonitor xe is the first Phonitor headphone amplifier which can be equipped with the brand-new DAC768.

This optional internal Uber-DAC qualifies the Phonitor xe to convert with outstanding sonic performance.
An audio resolution of 32 bits and PCM sample rates up to 768kHz as well as DSD – up to DSD256 – are the impressive numbers.
The analog side of the converter also is top-notch:
Like in the Director DAC & Preamplifier. the active Lowpass-Filter is built in a 120V-Voltair-Technology design.

Phonitor xe

Phonitor is a success story. Designed and developed for the sound engineer to be able to mix on headphones Phonitor soon found a fan base among Hi-Fi aficionados around the world as they realized that they can enjoy 'their' music on headphones the way it was intended – without the super-stereo effect and with natural crosstalk.

For us it was only logical to develop optimized Hi-Fi versions for those who enjoy listening to music on headphones.

In contrast to the Phonitor x the Phonitor xe renounces the preamplifier function and unlike the Phonitor e it features the nice VU meters and the fully featured Phonitor Matrix.

Thus the Phonitor xe is the flagship amplifier for headphone enthusiasts.

Dual power amp for balanced headphones

Balanced headphones can be connected to the 4-pin XLR socket. The Phonitor xe has a built-in advanced dual power amp that drives headphones balanced with twice the power of the standard 1/4" jack.

This tightens the bass response and makes the overall playback even more relaxed and transparent.

Headphone outputs on front and back

The Phonitor xe features both balanced and standard headphone output sockets on the front and on the back.

Permanently connected headphones can be put in the rear sockets so that the headphone cable does not get in the way and disturb the look.

A switch on the front allows to toggle between front and rear outputs. This also allows you to compare headphones without plugging and unplugging.

Optimized Phonitor Matrix

The Phonitor Matrix is identical to the Phonitor x and purely designed for audio playback.

Unlike the professional version Phonitor 2, features like Center Level, Solo and Polarity are renounced in the Phonitor xe as they are only of use in music production.


The Crossfeed switch allows you to adjust the frequency-dependent crossfeed simulation of both channels by adjustments of interaural level difference – as if this characteristic would be heard from monitors when in their own room ambience. 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.


The Angle switch provides for frequency-dependent simulation of your stereo image width by adjustments of interaural 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 interaural 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.

Remote Control

To control the Volume you can use any IR remote control. The cool part is that the Phonitor xe learns your remote!

You can use the remote control of your 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 xe learn them. Please check the manual for more.

Optional Uber-DAC768 with DLP120

The Phonitor xe can be equipped with the Uber-DAC768.

With that installed, the available inputs are expanded by USB, AES/EBU, coaxial and optical digital stereo inputs.

The DAC768 converts PCM sample rates up to 768 kHz with 32 bits and DSD streams up to DSD256. It syncs automatically to the sample rate of the selected digital input.

Compared to the DAC192 the DAC768 adds DSD playback and supports higher sample rates for PCM signals. The bit depth is increased from 24 bit to 32 bit for an unparalleled dynamic range.

The mandatory lowpass filter is built in 120V-VOLTAiR technology. The DAC768 features the new DLP120 lowpass filter board that contains two separate lowpass filters. Depending on the digital format the analog signal runs either through the PCM or the DSD filter.

The incredible headroom and the enormous dynamic range lets the analog wavefront come to life and evolve without any limitation. And that is audible. Very much so.

Velvet Sound® DA converter

The Phonitor xe can optionally be equipped with a completely new digital-to-analog converter board. It is an all new design based on the AK4490 Velvet Sound® DAC chip from AKM.

The new DAC supports PCM audio up to 768kHz sample rates with 32 bit and DSD audio playback up to DSD4 or DSD256.

It features four digital stereo inputs: AES/EBU, USB, COAX, OPTICAL.


AES (or more precise AES3 or AES/EBU) is a standard for the exchange of digital audio signals between professional audio devices. AES3 was jointly developed by the Audio Engineering Society (AES) and the European Broadcasting Union (EBU).

An AES signal can carry two coded PCM audio channels of up to 192kHz sampling rate.

The standard is defined under IEC 60958 Type I.

Type I connections use balanced, 3-conductor, 110-ohm twisted pair cabling with XLR connectors.


The consumer grade variant of AES is S/P-DIF (Sony/Philips Digital Interface). Worldwide it is the most commonly used method for digitally interconnecting audio equipment – typically the digital output of a CD player.

The connector is labelled "Coaxial". Like AES it can carry two coded PCM audio channels up to 192kHz sampling rate.

The standard is defined under IEC 60958 Type II.

Type II connections use single-ended, 2-conductor, 75-ohm coaxial cable with RCA connectors.


Type II Optical connections use optical fiber with F05 connectors, which are more commonly known by their Toshiba brand name, TOSLINK. Type II Optical connections are also used in consumer audio and are also called "Optical".

Like AES and Coaxial it supports sample rates up to 192kHz for two coded PCM audio channels.


The most interesting input is the USB port for connection with a computer. When connected to a PC the Windows driver must be installed to playback audio files with a higher resolution than 44.1kHz or 48kHz.

On a Mac the install of a driver is not needed. Apple natively supports USB class 2 with sample rates up to 768kHz.

DSD over USB

SACD or BluRay players typically do not put out the DSD stream for copy protection reasons. This means that an existing SACD/BluRay player can only be connected to the analog inputs of the Director Mk2.

To playback (non-encrypted) DSD files from a computer can only be handled over USB.

Specific software players like Audirvana Plus (Mac), Channel D Pure Music (Mac), J River Media Center (Mac/PC), Signalyst (PC), Foobar2000 (PC), JPlay (PC) support DSD playback.

The USB audio 2.0 specification defined several formats for the more common PCM approach to digital audio, but did not define a format for DSD. In 2012, representatives from many companies and others developed a standard commonly known as "DSD over PCM", or "DoP" to represent and detect DSD audio within the PCM frames defined in the USB specification.


The Phonitor xe supports both audio formats PCM and DSD. For PCM audio sample rates are supported up to 768kHz and for DSD audio sampling is supported up to DSD4 (quad-rate DSD) also known as DSD256 (256 times the CD sample rate of 44.1kHz).


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) - sample rates PCM (kHz): 44.1, 48, 88.2, 96, 176.4, 192
  • Optical TOSLINK (F06) – sample rates PCM (kHz): 44.1, 48, 88.2, 96
  • USB (B) – PCM sample rates (kHz): 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384, 705.6, 768
  • USB (B) – DSD 1, 2 and 4 (DoP)
  • AES – sample rates PCM (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: 0.00082 % (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: 0.00082% (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

Internal Operating Voltages

  • Analog: +/- 60 V
  • Digital: + 5 V and + 3,3 V (optional DAC768)

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 330mm D
  • 10.95 in W x 3.94 in H x 12.99 in D


  • 11.24 lbs (5,1 kg), unit only
  • 13.78 lbs (6,25 kg), shipping

0 dBu = 0.775V. Specifications subject to change without notice

SPL Audio - Phonitor XE Headphone Amplifier


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