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SPL Phonitor x Headphone Amplifier and Preamplifier
SPL Phonitor x Headphone Amplifier and Preamplifier
SPL Phonitor x Headphone Amplifier and Preamplifier

SPL Phonitor x Headphone Amplifier and Preamplifier

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$4,399.00
Colour:Silver
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Pickup available at 22 Saint Kilda Road Usually ready in 2-4 days

SPL Phonitor x Headphone Amplifier and Preamplifier

Silver / Phonitor x without DAC768v2

22 Saint Kilda Road

Pickup available, usually ready in 2-4 days

22 Saint Kilda Road
Suite 2.02
St Kilda VIC 3182
Australia

0395250022

Sound Performance Lab

Country of origin: Germany

Phonitor x

Headphone Amplifier and Preamplifier

The Phonitor x is both an outstanding headphone amplifier and an excellent preamplifier that can be used to directly drive power amplifiers or active speakers. With the optional DA converter, it not only plays from analog sources, but also directly from digital sources. The Phonitor Matrix allows speaker-like listening via headphones. 

Thanks to VOLTAiR technology, it offers all this in the highest possible sound quality.

Reviews

“With the new DAC768xs module, the Phonitor x really shows its phenomenal qualities as a headphone amplifier and preamp, even with digital sources connected.”

Dr. Martin Mertens
EAR IN

“The Phonitor x is one of the most extraordinary headphone amplifiers on the market ... with a meticulous level of detail and unrestrained musical playfulness. Period.”

Holger Biermann
Low Beats

“I am sufficiently enamored with the Phonitor x that I have decided to buy one; which is the highest recommendation I can give any component.”

Ian Dunmore
Headphones.com

“In a word: awesome.”
“The Phonitor x always delivered a spotless, honest and tremendously dynamic sound.”

Freda Ressel
Professional Audio & Mobile Fidelity

Great sound – for all headphones

The Phonitor x offers connections for a standard headphone with a stereo jack plug and for balanced-driven headphones using a 4-pol XLR jack.

Thanks to the enormous output power, all headphones are driven effortlessly.
Thus, it plays out the advantages of the SPL VOLTAiR technology and rewards the listener with an honest, detailed and at the same time vivid sound experience.

Headphones or Speaker

The OUTPUT switch turns the headphone amplifier into a preamplifier – simply switch from headphones to speakers.

In the center position (mute), no signal reaches the outputs. The VU meters light up red.

To the power amplifiers

or to the active loudspeakers you can use the balanced via XLR sockets – for long cable runs, and unbalanced via RCA sockets. The source signal is always present at both speaker outputs.

The standby mode of devices with 12V trigger input can be switched on and off via AMP CTL. This allows, for example, the SPL Performer s800, Performer m1000 or Performer s1200 power amplifiers to be ideally integrated into the set-up.

Milled from solid

The massive 45mm volume control knob milled from aluminum is a haptic highlight. Its mass together with the motorized Alps RK27 “Big Blue” potentiometer enhances the “spoon in the honey” feeling even further.

The red marker LED ensures good visibility of the volume parameter even in darkened environments.

Remote Control

The volume control can be remotely controlled with any infrared remote control.

The Phonitor x learns to communicate with it with the simple push of a button.

Learning made easy

This video explains how you can use any infrared remote control to remotely control the volume.

Source of joy

Up to five stereo sources can be connected to the Phonitor x: XLR, RCA, and via the optional DAC768xs, USB, COAX, and OPTICAL.

The Phonitor x accepts a variety of different audio connections.
Balanced via XLR or unbalanced via RCA jacks.

With the optional DAC768xs, three additional digital sources can be added. PCM audio is received in S/P-DIF format both coaxially (RCA) and optically (Toslink F06).
Both PCM audio and DSD audio can be converted via USB.

The DAC automatically picks up the sampling rate and resolution of the digital playback source. No matter if a streamer, computer or CD player is connected. No further settings on the Phonitor x are necessary.

DAC768v2 – the SPL reference DAC in the newest revision!

The highly acclaimed AKM AK4493 SEQ VELVETSOUNDTM premium DAC chip is used as the converter chip in the digital/analog converter within the latest version of the SPL DAC “DAC768v2”, which thanks to its architecture reproduces the finest sound details. It impresses with even lower distortion characteristics and a wider dynamic range than its predecessor.

It converts PCM audio with a resolution of 32 bits and a sampling rate of up to 768 kHz, which is equivalent to 16 times CD resolution. Direct Stream Digital is also supported up to a resolution of DSD4 or DSD256. The DAC768v2 features the newest version of the Spartan FPGA – Spartan 7.

In contrast to the smaller SPL DAC “DAC768xs”, it not only offers an AES/EBU digital input, but also the new, optimized SPL SLP120 with VOLTAiR technology.

The SLP120 (Super Low-Pass)

The analog output of the DAC chip must be filtered by a low pass filter. In contrast to all other DACs in the world, the low pass filters here are built using VOLTAiR technology, which provides a plus in dynamics and headroom and sound. The filter specially optimized for the new SPL DAC768v2 is called SLP120 (Super Low-Pass).

The DAC768v2 inside the Phonitor x is equipped with the SLP120 – an analog “Super Low-Pass” filter with VOLTAiR technology.

DAC768v2 – what's new:

1. AK 4493 SEQ

The DAC768v2 is equipped with the latest generation of the premium DAC chip – the AK 4493 SEQ – from Asahi Kasei (previously AK 4490).

The AK 4493 SEQ not only supports the playback of PCM signals at up to 768 kHz and DSD signals up to DSD512 – this 32-bit stereo DAC with “VELVETSOUND™ technology” impresses with even lower distortion characteristics and a wider dynamic range than its predecessor.

2. Spartan 7

The DAC768v2 features the newest version of the Spartan FPGA – Spartan 7 (previously Spartan 6).

3. The newest generation of the SPL low-pass filter “SLP120”

The DAC768v2 comes with a completely new tuned low-pass filter, which perfectly matches the sonic strengths of the new converter chip. It ofers an even better representation of the stereo image as well as a three-dimensionality we never experienced from any other DAC before.

The new DAC revision can be recognized by the “DAC768v2” label on the serial number sticker.

The design of the DAC768v2 is unfortunately not compatible with devices that were built with DAC768.

In addition to the original DAC chip (previously AK4490, now AK4493), other components in the digital environment that are no longer available, such as the previously used version of the Spartan-6 FPGA (now Spartan-7), had to be updated. As the technical characteristics of these components are different from those of their predecessors, further technical adjustments had to be made to the device in order to achieve the best possible sonic performance of which SPL is known for. The analog low-pass filter with 120V technology is also different in the devices with DAC768v2.

It is therefore not possible to simply replace the DAC768 module with the DAC768v2 module.

 

Good ol' times

Two mechanical VU meters visualize the input levels for the left and right audio channel.

Finding the middle

is not always easy. By our very nature, hearing can be leaning more to the left or more to the right. This is especially obvious when listening with headphones.

That’s why Phonitor x has the uniquely finely resolved laterality control. With it, the center can be found perfectly.

With the mode switch you can choose between stereo or mono playback. To the right, the laterality control is switched on.

The Revolution: Phonitor-Matrix

The Phonitor Matrix is the revolution in the headphone amplifier.


Thanks to the Phonitor Matrix, music can be experienced on headphones as if it was played on speakers. The tiring super stereo effect is a thing of the past.

Enjoy their music without listening fatigue and exactly the way it should be heard.

Phonitor Matrix 

Thanks to VOLTAiR technology, it offers all this in the highest possible sound quality.

Crossfeed

Listening on headphones is different from listening on loudspeakers.

The biggest difference is the lack of crossing signals of the sound signal from the left speaker to the right ear and from the right speaker to the left ear.

Conventional

This results in an unnaturally wide and wrong stereo image.

The various sound sources of the audio signal are not localized as the sound engineer intended them to.

Correct

The SPL Phonitor Matrix will correct this false stereo image with an analog circuitry and ensures a correct representation of the stereo image and a relaxed listening experience.

Music is normally produced and mixed for playback on stereo speakers.
Listening on headphones is different from listening on loudspeakers. The biggest difference is the lack of crossing signals of the sound signal from the left speaker to the right ear and from the right speaker to the left ear. These crossing signals are missing in conventional headphone listening, because there are no signals crossing from one side of the headphones to the other.

This results in an unnaturally wide stereo image and the various sound sources of the audio signal are not localized as the sound engineer intended them to. This effect is often referred to as “super stereo effect”. During conventional listening on headphones, our brain can balance the false representation of the playback to a certain extent – but this is very exhausting.

The SPL Phonitor Matrix can correct this false stereo image with an analog circuitry. The Phonitor Matrix therefore not only ensures a correct representation of the stereo image, but also a relaxed listening experience.

The two main parameters of the Phonitor Matrix are Crossfeed and Angle:

Crossfeed determines the crossing signals of the channels, the so-called interaural level difference.
Angle determines the opening angle of the stereo image, the so-called interaural time difference.

Crossfeed

Level and frequency adjustment of the right (red) and left (green) audio channel at maximum crossfeed.

Angle

Settings for the speaker placement angle to determine the interaural time difference.

Center of Attention

To make the listening experience even more perfect, the level of the center of the stereo image needs to be attenuated when the Phonitor Matrix is active. This ensures that not only the position of all sound sources is correct but also their volume.

In the Professional Fidelity Phonitor devices this value is set to a fixed attenuation of -1 dB, which is the best choice for getting an authentic representation of the sound stage.

 

Sounds good

With all devices of the Professional Fidelity series we develop not only according to plan, but also by ear. Many important components are installed on the circuit boards using Through-hole technology. This way we can ensure that we can use the best sounding components.

The VOLTAiR Technology

The 120V technology is our reference technology. The 120V technology is unique in the world. It operates at a DC voltage of 120 volts. This is four times that of IC-based semiconductor op-amps. In our Professional Fidelity series, we refer to this unsurpassed technology as VOLTAiR technology.



The highest possible audio quality requires the highest possible audio operating voltage.
The 120V technology works with +/-60 V. To be able to handle such a high voltage, we have developed special proprietary operational amplifiers that can operate with a DC voltage of +/-60 V: the SPL 120V SUPRA operational amplifiers.

This high voltage would destroy conventional components and operational amplifiers.

By the way, the “120V” in the name of the technology has nothing to do with the local mains voltage from the mains power socket. This is about the operating voltage inside the device with which the audio signals are processed.
The mains voltage from the mains power socket is transformed to the required secondary voltage in the device’s internal linear power supply with toroidal transformer. Rectifiers convert this AC voltage into DC voltage required in the audio device.